changeset 2207:ff8920a40c21

fixpoint_mul
author Ritor1
date Thu, 06 Feb 2014 17:20:12 +0600
parents 15a327be07e2
children 0b2eea6f80c9
files IndoorCameraD3D.cpp LOD.cpp Outdoor.cpp ParticleEngine.cpp Render.cpp SpriteObject.cpp Sprites.cpp Viewport.cpp mm7_2.cpp mm7_3.cpp mm7_5.cpp stru6.cpp
diffstat 12 files changed, 317 insertions(+), 382 deletions(-) [+]
line wrap: on
line diff
--- a/IndoorCameraD3D.cpp	Thu Feb 06 00:38:03 2014 +0600
+++ b/IndoorCameraD3D.cpp	Thu Feb 06 17:20:12 2014 +0600
@@ -166,12 +166,11 @@
          - (unsigned __int64)(to_y * (signed __int64)pGame->pIndoorCameraD3D->int_cosine_y);
     //}
     a3a = (z - pGame->pIndoorCameraD3D->vPartyPos.z) << 16;
-    a2b = (unsigned __int64)(to_z * (signed __int64)pGame->pIndoorCameraD3D->int_sine_x) >> 16;
+    //a2b = fixpoin_mul(to_z, pGame->pIndoorCameraD3D->int_sine_x);
     //v10 = pOutX;
-    *pOutX = ((unsigned __int64)(v14 * (signed __int64)pGame->pIndoorCameraD3D->int_cosine_x) >> 16) - a2b;
+    *pOutX = fixpoint_mul(v14, pGame->pIndoorCameraD3D->int_cosine_x) - fixpoint_mul(to_z, pGame->pIndoorCameraD3D->int_sine_x);
     *pOutZ = v9;
-    *pOutY = ((unsigned __int64)(v14 * (signed __int64)pGame->pIndoorCameraD3D->int_sine_x) >> 16)
-           + ((unsigned __int64)(a3a * (signed __int64)pGame->pIndoorCameraD3D->int_cosine_x) >> 16);
+    *pOutY = fixpoint_mul(v14, pGame->pIndoorCameraD3D->int_sine_x) + fixpoint_mul(a3a, pGame->pIndoorCameraD3D->int_cosine_x);
   }
   else
   {
--- a/LOD.cpp	Thu Feb 06 00:38:03 2014 +0600
+++ b/LOD.cpp	Thu Feb 06 17:20:12 2014 +0600
@@ -512,7 +512,7 @@
   int v75; // [sp+48h] [bp-14h]@4
   int v76; // [sp+48h] [bp-14h]@22
   int v77; // [sp+48h] [bp-14h]@59
-  LODSprite *v78; // [sp+4Ch] [bp-10h]@1
+  //LODSprite *v78; // [sp+4Ch] [bp-10h]@1
   int v79; // [sp+50h] [bp-Ch]@4
   int v80; // [sp+50h] [bp-Ch]@21
   int v81; // [sp+50h] [bp-Ch]@62
@@ -526,7 +526,7 @@
   int v89; // [sp+68h] [bp+Ch]@56
 
   v3 = a2;
-  v78 = this;
+  //v78 = this;
   result = a2->_screenspace_x_scaler_packedfloat;
   v58 = a2->_screenspace_x_scaler_packedfloat;
   if ( result <= 0 )
@@ -547,14 +547,14 @@
   auto pTarget = (unsigned __int16 *)v3->pTarget;
   v57 = v3->sZValue;
   v61 = v3->pPalette;
-  v9 = (v6 * this->uWidth + 32768) >> 16;
+  v9 = (v6 * this->uWidth + 0x8000) >> 16;
   v72 = v3->uScreenSpaceY;
-  result = (v5 * v7 + 32768) >> 16;
+  result = (v5 * v7 + 0x8000) >> 16;
   v10 = (int *)(v72 - result + 1);
   v11 = v3->uScreenSpaceX - (v9 >> 1) + 1;
   v65 = v72 - result + 1;
   v59 = v11 + v9 - 1;
-  if ( BYTE1(v3->uFlags) & 8 )
+  if ( v3->uFlags & 0x800 )
   {
     v10 = (int *)((char *)v10 + (v49 >> 1));
     v72 += v49 >> 1;
@@ -607,7 +607,7 @@
     while ( 1 )
     {
       v35 = v71 >> 16;
-      v36 = LOWORD(v78->pSpriteLines[v35].dword_0);
+      v36 = LOWORD(this->pSpriteLines[v35].dword_0);
       if ( v36 == -1 )
       {
         v34 -= v69;
@@ -615,11 +615,11 @@
         goto LABEL_84;
       }
       v37 = v9 - ((unsigned __int64)(v36 * (signed __int64)v58) >> 16);
-      v67 = v87 * ((unsigned __int64)(LOWORD(v78->pSpriteLines[v35].dword_0) * (signed __int64)v58) >> 16);
+      v67 = v87 * ((unsigned __int64)(LOWORD(this->pSpriteLines[v35].dword_0) * (signed __int64)v58) >> 16);
       v38 = v9 - v60;
       v77 = v9 - v60;
       if ( v9 - v60 <= (signed int)(v9
-                                  - ((unsigned __int64)(HIWORD(v78->pSpriteLines[v35].dword_0) * (signed __int64)v58) >> 16))
+                                  - ((unsigned __int64)(HIWORD(this->pSpriteLines[v35].dword_0) * (signed __int64)v58) >> 16))
         || v68 >= v37 )
       {
         v89 -= v69;
@@ -640,15 +640,15 @@
         v89 += v39 + v60;
         v86 += v60 + v39;
       }
-      v40 = ((HIWORD(v78->pSpriteLines[v35].dword_0) + 1) << 16) - v81 - v67;
+      v40 = ((HIWORD(this->pSpriteLines[v35].dword_0) + 1) << 16) - v81 - v67;
       LODWORD(v41) = v40 << 16;
       HIDWORD(v41) = v40 >> 16;
-      v42 = v77 - (((signed int)((unsigned __int64)(v41 / v48) - 32768) >> 16) + 1);
+      v42 = v77 - (((signed int)((unsigned __int64)(v41 / v48) - 0x8000) >> 16) + 1);
       if ( v68 >= v42 )
         v42 = v68;
       v43 = &pTarget[v89];
       v74 = &v43[v42 - v77 + 1];
-      v44 = &v78->pSpriteLines[v35];
+      v44 = &this->pSpriteLines[v35];
       v64 = v44->ptr_4;
       if ( !v57 )
       {
@@ -661,7 +661,7 @@
         }
         while ( v43 >= v74 )
         {
-          v46 = (v83 - ((signed int)LOWORD(v78->pSpriteLines[v35].dword_0) << 16)) >> 16;
+          v46 = (v83 - ((signed int)LOWORD(this->pSpriteLines[v35].dword_0) << 16)) >> 16;
           if ( *((char *)v64 + v46) )
             *v43 = v61[*((char *)v64 + v46)];
           v83 += v87;
@@ -687,7 +687,7 @@
       if ( !v51 )
         return result;
     }
-    v45 = (v82 - ((signed int)LOWORD(v78->pSpriteLines[v35].dword_0) << 16)) >> 16;
+    v45 = (v82 - ((signed int)LOWORD(this->pSpriteLines[v35].dword_0) << 16)) >> 16;
     v56 = *((char *)v64 + v45);
     if ( *((char *)v64 + v45) && v57 <= (unsigned int)*pTargetZ )
     {
@@ -709,7 +709,7 @@
     v50 = result - (int)v16 + 1;
     while ( 1 )
     {
-      v20 = &v78->pSpriteLines[v71 >> 16];
+      v20 = &this->pSpriteLines[v71 >> 16];
       v80 = v71 >> 16;
       if ( LOWORD(v20->dword_0) != -1 )
         break;
@@ -754,7 +754,7 @@
       v22 = v26;
     v27 = &pTarget[v88];
     v73 = &v27[v22 - v76 - 1];
-    v28 = &v78->pSpriteLines[v80];
+    v28 = &this->pSpriteLines[v80];
     v63 = v28->ptr_4;
     if ( v57 )
     {
@@ -778,7 +778,7 @@
         }
       }
       v30 = v29 >> 16;
-      if ( v30 > HIWORD(v78->pSpriteLines[v80].dword_0) - (signed int)LOWORD(v78->pSpriteLines[v80].dword_0)
+      if ( v30 > HIWORD(this->pSpriteLines[v80].dword_0) - (signed int)LOWORD(this->pSpriteLines[v80].dword_0)
         || (v31 = *((char *)v63 + v30)) == 0
         || v57 > (unsigned int)*pTargetZ )
         goto LABEL_50;
@@ -801,7 +801,7 @@
         ++v27;
       }
       v33 = v32 >> 16;
-      if ( v33 > HIWORD(v78->pSpriteLines[v80].dword_0) - (signed int)LOWORD(v78->pSpriteLines[v80].dword_0)
+      if ( v33 > HIWORD(this->pSpriteLines[v80].dword_0) - (signed int)LOWORD(this->pSpriteLines[v80].dword_0)
         || (v31 = *((char *)v63 + v33)) == 0 )
         goto LABEL_50;
     }
--- a/Outdoor.cpp	Thu Feb 06 00:38:03 2014 +0600
+++ b/Outdoor.cpp	Thu Feb 06 17:20:12 2014 +0600
@@ -33,6 +33,7 @@
 #include "BSPModel.h"
 #include "GUIWindow.h"
 #include "Level/Decoration.h"
+#include "OurMath.h"
 
 MapStartPoint uLevel_StartingPointType; // weak
 
@@ -2971,8 +2972,8 @@
                   v24 = pBModel->pVertices.pVertices[pFace->pVertexIDs[0]].z;
                 else
                 {
-                  int a = ((signed __int64)(pFace->zCalc1 * (signed __int64)X) >> 16);
-                  int b = ((signed __int64)(pFace->zCalc2 * (signed __int64)Y) >> 16);
+                  int a = fixpoint_mul(pFace->zCalc1, X);
+                  int b = fixpoint_mul(pFace->zCalc2, Y);
                   int c = ((signed __int64)pFace->zCalc3 >> 16);
                   v24 = a + b + c;
                 }
@@ -4451,8 +4452,7 @@
             if ( pOutdoor->pBModels[i].pFaces[j].uPolygonType == POLYGON_Ceiling )
               v19 = pOutdoor->pBModels[i].pVertices.pVertices[pOutdoor->pBModels[i].pFaces[j].pVertexIDs[0]].z;
             else
-              v19 = ((unsigned __int64)(pOutdoor->pBModels[i].pFaces[j].zCalc1 * (signed __int64)Party_X) >> 16)
-                  + ((unsigned __int64)(pOutdoor->pBModels[i].pFaces[j].zCalc2 * (signed __int64)Party_Y) >> 16)
+              v19 = fixpoint_mul(pOutdoor->pBModels[i].pFaces[j].zCalc1, Party_X) + fixpoint_mul(pOutdoor->pBModels[i].pFaces[j].zCalc2, Party_Y)
                   + HIWORD(pOutdoor->pBModels[i].pFaces[j].zCalc3);
             v20 = v39++;
             ceiling_height_level[v20] = v19;
--- a/ParticleEngine.cpp	Thu Feb 06 00:38:03 2014 +0600
+++ b/ParticleEngine.cpp	Thu Feb 06 17:20:12 2014 +0600
@@ -458,7 +458,7 @@
   int v3; // ebx@1
   int v4; // edi@1
   int v5; // ecx@1
-  Particle *v6; // esi@1
+  //Particle *v6; // esi@1
   //double v7; // ST14_8@2
   //double v8; // ST34_8@4
   //double v9; // ST3C_8@4
@@ -485,11 +485,11 @@
   //int v30; // eax@13
   //int v31; // ST1C_4@13
   //double v32; // st7@13
-  signed int v33; // eax@13
+  //signed int v33; // eax@13
   //int v34; // ecx@13
   //float v35; // ST04_4@13
-  int v36; // eax@13
-  int v37; // esi@15
+  //int v36; // eax@13
+  //int v37; // esi@15
   //double v39; // [sp+10h] [bp-40h]@2
   int v40; // [sp+14h] [bp-3Ch]@12
   //int v41; // [sp+1Ch] [bp-34h]@2
@@ -512,8 +512,8 @@
   v4 = stru_5C6E00->Cos(pGame->pIndoorCameraD3D->sRotationY);
   v5 = stru_5C6E00->Sin(pGame->pIndoorCameraD3D->sRotationY);
 
-  v6 = &pParticles[uID];
-  if (v6->type == ParticleType_Invalid)
+  //v6 = &pParticles[uID];
+  if (pParticles[uID].type == ParticleType_Invalid)
     return false;
 
     //v7 = v6->x + 6.7553994e15;
@@ -522,46 +522,49 @@
     //v42 = v6->z + 6.7553994e15;
     if ( v3 )
     {
-      if (v6->type & ParticleType_Line)
+      if (pParticles[uID].type & ParticleType_Line)
       {
         //v8 = v6->_x + 6.7553994e15;
         //uIDc = (LODWORD(v8) - pIndoorCamera->pos.x) << 16;
         //v9 = v6->_y + 6.7553994e15;
         //v10 = (LODWORD(v9) - pIndoorCamera->pos.y) << 16;
-        v11 = fixpoint_sub_unknown(v6->x - pGame->pIndoorCameraD3D->vPartyPos.x, v4) + fixpoint_sub_unknown(v6->y - pGame->pIndoorCameraD3D->vPartyPos.y, v5);
+        v11 = fixpoint_sub_unknown(pParticles[uID].x - pGame->pIndoorCameraD3D->vPartyPos.x, v4)
+            + fixpoint_sub_unknown(pParticles[uID].y - pGame->pIndoorCameraD3D->vPartyPos.y, v5);
         //HIDWORD(v8) = fixpoint_sub_unknown(v6->x - pIndoorCamera->pos.x, v5);
         //v12 = v6->_z + 6.7553994e15;
         //uIDd = (LODWORD(v12) - pIndoorCamera->pos.z) << 16;
-        long long _hidword_v12 = fixpoint_mul(v11, v3) + fixpoint_sub_unknown(v6->z - pGame->pIndoorCameraD3D->vPartyPos.z, v44);
+        long long _hidword_v12 = fixpoint_mul(v11, v3) + fixpoint_sub_unknown(pParticles[uID].z - pGame->pIndoorCameraD3D->vPartyPos.z, v44);
         LODWORD(v13) = 0;
         HIDWORD(v13) = SLOWORD(pODMRenderParams->int_fov_rad);
         //v14 = v13 / _hidword_v12;
-        v6->_screenspace_scale = v13 / _hidword_v12;
+        pParticles[uID]._screenspace_scale = v13 / _hidword_v12;
         //v15 = v6->_screenspace_scale;
-        v6->uScreenSpaceX = pViewport->uScreenCenterX
-                          - ((signed int)((unsigned __int64)(v6->_screenspace_scale
-                                                           * (signed __int64)(fixpoint_sub_unknown(v6->y - pGame->pIndoorCameraD3D->vPartyPos.y, v4)
-                                                                                        - fixpoint_sub_unknown(v6->x - pGame->pIndoorCameraD3D->vPartyPos.x, v5))) >> 16) >> 16);
-        v6->uScreenSpaceY = pViewport->uScreenCenterY
-                          - ((signed int)((unsigned __int64)(v6->_screenspace_scale
-                                                           * (signed __int64)(fixpoint_sub_unknown(v6->z - pGame->pIndoorCameraD3D->vPartyPos.z, v3)
-                                                                                        - ((unsigned __int64)(v11 * (signed __int64)v44) >> 16))) >> 16) >> 16);
-        v6->sZValue = _hidword_v12;
+        pParticles[uID].uScreenSpaceX = pViewport->uScreenCenterX
+                                      - ((signed int)fixpoint_mul(pParticles[uID]._screenspace_scale, (fixpoint_sub_unknown(pParticles[uID].y
+                                      - pGame->pIndoorCameraD3D->vPartyPos.y, v4)
+                                      - fixpoint_sub_unknown(pParticles[uID].x - pGame->pIndoorCameraD3D->vPartyPos.x, v5))) >> 16);
+        pParticles[uID].uScreenSpaceY = pViewport->uScreenCenterY
+                                      - ((signed int)fixpoint_mul(pParticles[uID]._screenspace_scale, (fixpoint_sub_unknown(pParticles[uID].z
+                                      - pGame->pIndoorCameraD3D->vPartyPos.z, v3)
+                                      - fixpoint_mul(v11, v44))) >> 16);
+        pParticles[uID].sZValue = _hidword_v12;
       }
       //uIDe = (v41 - pIndoorCamera->pos.x) << 16;
       //v47 = (LODWORD(v39) - pIndoorCamera->pos.y) << 16;
-      v45 = fixpoint_sub_unknown(v6->x - pGame->pIndoorCameraD3D->vPartyPos.x, v4) + fixpoint_sub_unknown(v6->y - pGame->pIndoorCameraD3D->vPartyPos.y, v5);
+      v45 = fixpoint_sub_unknown(pParticles[uID].x - pGame->pIndoorCameraD3D->vPartyPos.x, v4) + fixpoint_sub_unknown(pParticles[uID].y
+                                                   - pGame->pIndoorCameraD3D->vPartyPos.y, v5);
       //HIDWORD(v42) = fixpoint_sub_unknown(v6->x - pIndoorCamera->pos.x, v5);
       //uIDa = (LODWORD(v42) - pIndoorCamera->pos.z) << 16;
-      X_4 = fixpoint_sub_unknown(v6->z - pGame->pIndoorCameraD3D->vPartyPos.z, v44) + fixpoint_mul(v45, v3);
+      X_4 = fixpoint_sub_unknown(pParticles[uID].z - pGame->pIndoorCameraD3D->vPartyPos.z, v44) + fixpoint_mul(v45, v3);
       if ( X_4 < 0x40000 )
         return 0;
-      v16 = fixpoint_sub_unknown(v6->y - pGame->pIndoorCameraD3D->vPartyPos.y, v4) - fixpoint_sub_unknown(v6->x - pGame->pIndoorCameraD3D->vPartyPos.x, v5);
-      v17 = fixpoint_sub_unknown(v6->z - pGame->pIndoorCameraD3D->vPartyPos.z, v3) - fixpoint_mul(v45, v44);
+      v16 = fixpoint_sub_unknown(pParticles[uID].y - pGame->pIndoorCameraD3D->vPartyPos.y, v4)
+          - fixpoint_sub_unknown(pParticles[uID].x - pGame->pIndoorCameraD3D->vPartyPos.x, v5);
+      v17 = fixpoint_sub_unknown(pParticles[uID].z - pGame->pIndoorCameraD3D->vPartyPos.z, v3) - fixpoint_mul(v45, v44);
     }
     else
     {
-      if (v6->type & ParticleType_Line)
+      if (pParticles[uID].type & ParticleType_Line)
       {
         //v18 = v6->_x + 6.7553994e15;
         //uIDf = (LODWORD(v18) - pIndoorCamera->pos.x) << 16;
@@ -570,26 +573,28 @@
         //v21 = v6->_z + 6.7553994e15;
         LODWORD(v22) = 0;
         HIDWORD(v22) = SLOWORD(pODMRenderParams->int_fov_rad);
-        long long _var_123 = fixpoint_sub_unknown(v6->x - pGame->pIndoorCameraD3D->vPartyPos.x, v4) + fixpoint_sub_unknown(v6->y - pGame->pIndoorCameraD3D->vPartyPos.y, v5);
+        long long _var_123 = fixpoint_sub_unknown(pParticles[uID].x - pGame->pIndoorCameraD3D->vPartyPos.x, v4)
+                           + fixpoint_sub_unknown(pParticles[uID].y - pGame->pIndoorCameraD3D->vPartyPos.y, v5);
         //v23 = v22 / _var_123;
-        v6->_screenspace_scale = v22 / _var_123;
+        pParticles[uID]._screenspace_scale = v22 / _var_123;
         //v24 = v6->_screenspace_scale;
-        v6->uScreenSpaceX = pViewport->uScreenCenterX
-                          - ((signed int)((unsigned __int64)(v6->_screenspace_scale
-                                                           * (signed __int64)(fixpoint_sub_unknown(v6->y - pGame->pIndoorCameraD3D->vPartyPos.y, v4)
-                                                                                        - fixpoint_sub_unknown(v6->x - pGame->pIndoorCameraD3D->vPartyPos.x, v5))) >> 16) >> 16);
-        v6->uScreenSpaceY = pViewport->uScreenCenterY - (fixpoint_sub_unknown(v6->z, v6->_screenspace_scale) >> 16);
-        v6->sZValue = _var_123;
+        pParticles[uID].uScreenSpaceX = pViewport->uScreenCenterX
+                          - ((signed int)fixpoint_mul(pParticles[uID]._screenspace_scale, (fixpoint_sub_unknown(pParticles[uID].y
+                          - pGame->pIndoorCameraD3D->vPartyPos.y, v4)
+                          - fixpoint_sub_unknown(pParticles[uID].x - pGame->pIndoorCameraD3D->vPartyPos.x, v5))) >> 16);
+        pParticles[uID].uScreenSpaceY = pViewport->uScreenCenterY - (fixpoint_sub_unknown(pParticles[uID].z, pParticles[uID]._screenspace_scale) >> 16);
+        pParticles[uID].sZValue = _var_123;
       }
       //uIDb = (v41 - pIndoorCamera->pos.x) << 16;
       //v48 = (LODWORD(v39) - pIndoorCamera->pos.y) << 16;
-      v26 = fixpoint_sub_unknown(v6->y - pGame->pIndoorCameraD3D->vPartyPos.y, v5);
+      v26 = fixpoint_sub_unknown(pParticles[uID].y - pGame->pIndoorCameraD3D->vPartyPos.y, v5);
       //v27 = v26 + ((unsigned __int64)(uIDb * (signed __int64)v4) >> 16);
-      X_4 = v26 + fixpoint_sub_unknown(v6->x - pGame->pIndoorCameraD3D->vPartyPos.x, v4);
+      X_4 = v26 + fixpoint_sub_unknown(pParticles[uID].x - pGame->pIndoorCameraD3D->vPartyPos.x, v4);
       if ( X_4 < 0x40000 || X_4 > (pODMRenderParams->uPickDepth - 1000) << 16 )
         return 0;
-      v17 = v6->z;
-      v16 = fixpoint_sub_unknown(v6->y - pGame->pIndoorCameraD3D->vPartyPos.y, v4) - fixpoint_sub_unknown(v6->x - pGame->pIndoorCameraD3D->vPartyPos.x, v5);
+      v17 = pParticles[uID].z;
+      v16 = fixpoint_sub_unknown(pParticles[uID].y - pGame->pIndoorCameraD3D->vPartyPos.y, v4)
+          - fixpoint_sub_unknown(pParticles[uID].x - pGame->pIndoorCameraD3D->vPartyPos.x, v5);
     }
     v40 = v17;
     v28 = abs(v16);
@@ -598,24 +603,23 @@
       LODWORD(v29) = 0;
       HIDWORD(v29) = SLOWORD(pODMRenderParams->int_fov_rad);
       //v30 = v29 / X_4;
-      v6->_screenspace_scale = v29 / X_4;
+      pParticles[uID]._screenspace_scale = v29 / X_4;
       //v31 = v6->_screenspace_scale;
-      v6->uScreenSpaceX = pViewport->uScreenCenterX
-                        - ((signed int)((unsigned __int64)(v6->_screenspace_scale * (signed __int64)v16) >> 16) >> 16);
-      v33 = (signed int)((unsigned __int64)(v6->_screenspace_scale * (signed __int64)v40) >> 16) >> 16;
+      pParticles[uID].uScreenSpaceX = pViewport->uScreenCenterX - ((signed int)fixpoint_mul(pParticles[uID]._screenspace_scale, v16) >> 16);
+      //v33 = (signed int)fixpiont_mul(v6->_screenspace_scale, v40) >> 16;
       //v34 = pViewport->uScreenCenterY - v33;
-      v6->uScreenSpaceY = pViewport->uScreenCenterY - v33;
-      v6->_screenspace_scale = fixpoint_mul(fixpoint_from_float(v6->flt_28), v6->_screenspace_scale);
-      v6->sZValue = X_4;
-      v36 = v6->uScreenSpaceX;
-      if ( v36 >= (signed int)pViewport->uViewportTL_X )
+      pParticles[uID].uScreenSpaceY = pViewport->uScreenCenterY - (signed int)fixpoint_mul(pParticles[uID]._screenspace_scale, v40) >> 16;
+      pParticles[uID]._screenspace_scale = fixpoint_mul(fixpoint_from_float(pParticles[uID].flt_28), pParticles[uID]._screenspace_scale);
+      pParticles[uID].sZValue = X_4;
+      //v36 = v6->uScreenSpaceX;
+      if ( pParticles[uID].uScreenSpaceX >= (signed int)pViewport->uViewportTL_X )
       {
-        if ( v36 < (signed int)pViewport->uViewportBR_X )
+        if ( pParticles[uID].uScreenSpaceX < (signed int)pViewport->uViewportBR_X )
         {
-          v37 = v6->uScreenSpaceY;
-          if ( v37 >= (signed int)pViewport->uViewportTL_Y )
+          //v37 = v6->uScreenSpaceY;
+          if ( pParticles[uID].uScreenSpaceY >= (signed int)pViewport->uViewportTL_Y )
           {
-            if ( v37 < (signed int)pViewport->uViewportBR_Y )
+            if ( pParticles[uID].uScreenSpaceY < (signed int)pViewport->uViewportBR_Y )
               return 1;
           }
         }
--- a/Render.cpp	Thu Feb 06 00:38:03 2014 +0600
+++ b/Render.cpp	Thu Feb 06 17:20:12 2014 +0600
@@ -998,10 +998,7 @@
           v37 = v10;
           v12 = v42;
           v38 = 0;
-          v13 = ((signed int)(stru_5C6E00->uIntegerPi
-                            + ((signed int)stru_5C6E00->uIntegerPi >> 3)
-                            + v11
-                            - (signed int)v37) >> 8) & 7;
+          v13 = ((signed int)(stru_5C6E00->uIntegerPi + ((signed int)stru_5C6E00->uIntegerPi >> 3) + v11 - (signed int)v37) >> 8) & 7;
           v37 = (unsigned __int16 *)v13;
           if ( v42 & 2 )
             v38 = 2;
@@ -1026,37 +1023,29 @@
               v15 = 255;
             }
             b = v16;
-            pStationaryLightsStack->AddLight(
-              decor->vPosition.x,
-              decor->vPosition.y,
-              decor->vPosition.z + decor_desc->uDecorationHeight / 2,
-              a5,
-              v14,
-              v15,
-              v16,
-              _4E94D0_light_type);
+            pStationaryLightsStack->AddLight(decor->vPosition.x, decor->vPosition.y, decor->vPosition.z + decor_desc->uDecorationHeight / 2,
+              a5, v14, v15, v16, _4E94D0_light_type);
           }
           v17 = (decor->vPosition.x - pGame->pIndoorCameraD3D->vPartyPos.x) << 16;
           if (pGame->pIndoorCameraD3D->sRotationX)
           {
             v40 = (decor->vPosition.y - pGame->pIndoorCameraD3D->vPartyPos.y) << 16;
-            v18 = ((unsigned __int64)(v17 * (signed __int64)pGame->pIndoorCameraD3D->int_cosine_y) >> 16)
-                + ((unsigned __int64)(v40 * (signed __int64)pGame->pIndoorCameraD3D->int_sine_y) >> 16);
+            v18 = fixpoint_mul(v17, pGame->pIndoorCameraD3D->int_cosine_y) + fixpoint_mul(v40, pGame->pIndoorCameraD3D->int_sine_y);
             v42 = v18;
-            b = (unsigned __int64)(v17 * (signed __int64)pGame->pIndoorCameraD3D->int_sine_y) >> 16;
-            a5 = (unsigned __int64)(v40 * (signed __int64)pGame->pIndoorCameraD3D->int_cosine_y) >> 16;
+            b = fixpoint_mul(v17, pGame->pIndoorCameraD3D->int_sine_y);
+            a5 = fixpoint_mul(v40, pGame->pIndoorCameraD3D->int_cosine_y);
             v40 = (decor->vPosition.z - pGame->pIndoorCameraD3D->vPartyPos.z) << 16;
-            v41 = (unsigned __int64)(v40 * (signed __int64)pGame->pIndoorCameraD3D->int_sine_x) >> 16;
-            v19 = (unsigned __int64)(v18 * (signed __int64)pGame->pIndoorCameraD3D->int_cosine_x) >> 16;
-            v20 = v19 + ((unsigned __int64)(v40 * (signed __int64)pGame->pIndoorCameraD3D->int_sine_x) >> 16);
-            v39 = v19 + ((unsigned __int64)(v40 * (signed __int64)pGame->pIndoorCameraD3D->int_sine_x) >> 16);
-            if ( v20 >= 262144 && v20 <= pODMRenderParams->shading_dist_mist << 16 )
+            v41 = fixpoint_mul(v40, pGame->pIndoorCameraD3D->int_sine_x);
+            v19 = fixpoint_mul(v18, pGame->pIndoorCameraD3D->int_cosine_x);
+            v20 = v19 + fixpoint_mul(v40, pGame->pIndoorCameraD3D->int_sine_x);
+            v39 = v19 + fixpoint_mul(v40, pGame->pIndoorCameraD3D->int_sine_x);
+            if ( v20 >= 0x40000 && v20 <= pODMRenderParams->shading_dist_mist << 16 )
             {
               v21 = a5 - b;
               v41 = a5 - b;
-              a5 = (unsigned __int64)(v42 * (signed __int64)pGame->pIndoorCameraD3D->int_sine_x) >> 16;
-              b = (unsigned __int64)(v40 * (signed __int64)pGame->pIndoorCameraD3D->int_cosine_x) >> 16;
-              v22 = ((unsigned __int64)(v40 * (signed __int64)pGame->pIndoorCameraD3D->int_cosine_x) >> 16) - a5;
+              //a5 = fixpoint_mul(v42, pGame->pIndoorCameraD3D->int_sine_x);
+              b = fixpoint_mul(v40, pGame->pIndoorCameraD3D->int_cosine_x);
+              v22 = fixpoint_mul(v40, pGame->pIndoorCameraD3D->int_cosine_x) - fixpoint_mul(v42, pGame->pIndoorCameraD3D->int_sine_x);
 LABEL_30:
               v42 = v22;
               v40 = 2 * abs(v20);
@@ -1066,26 +1055,24 @@
                 LODWORD(v24) = 0;
                 HIDWORD(v24) = SLOWORD(pODMRenderParams->int_fov_rad);
                 a5 = v24 / v39;
-                v25 = pViewport->uScreenCenterX
-                    - ((signed int)(((unsigned __int64)(v24 / v39 * v41) >> 16) + 32768) >> 16);
-                b = (unsigned __int64)(a5 * (signed __int64)v42) >> 16;
+                v25 = pViewport->uScreenCenterX - ((signed int)(fixpoint_mul(v24 / v39, v41) + 0x8000) >> 16);
+                b = fixpoint_mul(a5, v42);
                 v41 = v24 / v39;
-                v40 = pViewport->uScreenCenterY
-                    - ((signed int)(((unsigned __int64)(a5 * (signed __int64)v42) >> 16) + 32768) >> 16);
-                v42 = v8->scale;
-                v41 = (unsigned __int64)(v42 * v24 / v39) >> 16;
+                v40 = pViewport->uScreenCenterY - ((signed int)(fixpoint_mul(a5, v42) + 0x8000) >> 16);
+                //v42 = v8->scale;
+                v41 = fixpoint_mul(v8->scale, v24 / v39);
                 v37 = (unsigned __int16 *)&v8->pHwSpriteIDs[(int)v37];
                 if ( pRenderer->pRenderD3D )
                 {
                   v26 = v41;
-                  v42 = pSprites_LOD->pHardwareSprites[(signed __int16)*v37].uBufferWidth >> 1;
-                  b = (unsigned __int64)(v42 * (signed __int64)v41) >> 16;
+                  //v42 = pSprites_LOD->pHardwareSprites[(signed __int16)*v37].uBufferWidth / 2;
+                  b = fixpoint_mul(pSprites_LOD->pHardwareSprites[(signed __int16)*v37].uBufferWidth / 2, v41);
                 }
                 else
                 {
                   v26 = v41;
-                  v42 = pSprites_LOD->pSpriteHeaders[(signed __int16)*v37].uWidth >> 1;
-                  b = (unsigned __int64)(v42 * (signed __int64)v41) >> 16;
+                  //v42 = pSprites_LOD->pSpriteHeaders[(signed __int16)*v37].uWidth / 2;
+                  b = fixpoint_mul(pSprites_LOD->pSpriteHeaders[(signed __int16)*v37].uWidth / 2, v41);
                 }
                 if ( b + v25 >= (signed int)pViewport->uViewportTL_X && v25 - b <= (signed int)pViewport->uViewportBR_X )
                 {
@@ -1123,16 +1110,16 @@
           {
             v42 = (decor->vPosition.x - pGame->pIndoorCameraD3D->vPartyPos.x) << 16;
             v40 = (decor->vPosition.y - pGame->pIndoorCameraD3D->vPartyPos.y) << 16;
-            b = (unsigned __int64)(v17 * (signed __int64)pGame->pIndoorCameraD3D->int_cosine_y) >> 16;
-            a5 = (unsigned __int64)(v40 * (signed __int64)pGame->pIndoorCameraD3D->int_sine_y) >> 16;
-            v20 = b + ((unsigned __int64)(v40 * (signed __int64)pGame->pIndoorCameraD3D->int_sine_y) >> 16);
-            v39 = b + ((unsigned __int64)(v40 * (signed __int64)pGame->pIndoorCameraD3D->int_sine_y) >> 16);
-            if ( v20 >= 262144 && v20 <= pODMRenderParams->shading_dist_mist << 16 )
+            b = fixpoint_mul(v17, pGame->pIndoorCameraD3D->int_cosine_y);
+            a5 = fixpoint_mul(v40, pGame->pIndoorCameraD3D->int_sine_y);
+            v20 = b + fixpoint_mul(v40, pGame->pIndoorCameraD3D->int_sine_y);
+            v39 = b + fixpoint_mul(v40, pGame->pIndoorCameraD3D->int_sine_y);
+            if ( v20 >= 0x40000 && v20 <= pODMRenderParams->shading_dist_mist << 16 )
             {
-              a5 = (unsigned __int64)(v42 * (signed __int64)pGame->pIndoorCameraD3D->int_sine_y) >> 16;
-              b = (unsigned __int64)(v40 * (signed __int64)pGame->pIndoorCameraD3D->int_cosine_y) >> 16;
-              v21 = ((unsigned __int64)(v40 * (signed __int64)pGame->pIndoorCameraD3D->int_cosine_y) >> 16) - a5;
-              v41 = ((unsigned __int64)(v40 * (signed __int64)pGame->pIndoorCameraD3D->int_cosine_y) >> 16) - a5;
+              a5 = fixpoint_mul(v42, pGame->pIndoorCameraD3D->int_sine_y);
+              b = fixpoint_mul(v40, pGame->pIndoorCameraD3D->int_cosine_y);
+              v21 = fixpoint_mul(v40, pGame->pIndoorCameraD3D->int_cosine_y) - a5;
+              v41 = fixpoint_mul(v40, pGame->pIndoorCameraD3D->int_cosine_y) - a5;
               v22 = (decor->vPosition.z - pGame->pIndoorCameraD3D->vPartyPos.z) << 16;
               goto LABEL_30;
             }
@@ -4959,13 +4946,13 @@
   for ( _507D30_idx; _507D30_idx < pSkyPolygon.uNumVertices; _507D30_idx++ )
   {
     //v15 = (void *)(v72 * (v70 - (int)array_507D30[_507D30_idx].vWorldViewProjY));
-    v77 = (unsigned __int64)(pSkyPolygon.ptr_38->viewing_angle_from_west_east * (signed __int64)(v72 * (v70 - array_507D30[_507D30_idx].vWorldViewProjY))) >> 16;
+    v77 = fixpoint_mul(pSkyPolygon.ptr_38->viewing_angle_from_west_east, v72 * (v70 - array_507D30[_507D30_idx].vWorldViewProjY));
     v74 = v77 + pSkyPolygon.ptr_38->angle_from_north;
 
-    v77 = (unsigned __int64)(pSkyPolygon.ptr_38->viewing_angle_from_north_south * (signed __int64)(v72 * (v70 - array_507D30[_507D30_idx].vWorldViewProjY))) >> 16;
+    v77 = fixpoint_mul(pSkyPolygon.ptr_38->viewing_angle_from_north_south, v72 * (v70 - array_507D30[_507D30_idx].vWorldViewProjY));
     v74_ = v77 + pSkyPolygon.ptr_38->angle_from_east;
 
-    v79 = (void *)(((unsigned __int64)(pSkyPolygon.v_18.z * (signed __int64)v72 * (v70 - (int)array_507D30[_507D30_idx].vWorldViewProjY))) >> 16);
+    v79 = (void *)(fixpoint_mul(pSkyPolygon.v_18.z, v72 * (v70 - (int)array_507D30[_507D30_idx].vWorldViewProjY)));
     v17 = v72 * (pBLVRenderParams->uViewportCenterX - (int)array_507D30[_507D30_idx].vWorldViewProjX);
     v18 = array_507D30[_507D30_idx].vWorldViewProjY - 1.0;
     v19 = -pSkyPolygon.field_24;
@@ -4986,8 +4973,8 @@
       v19 = v77;
       v20 = v79;
 LABEL_14:
-      v79 = (void *)((unsigned __int64)(pSkyPolygon.v_18.z * (signed __int64)(signed int)v20) >> 16);
-      v22 = (unsigned __int64)(pSkyPolygon.v_18.z * (signed __int64)(signed int)v20) >> 16;
+      v79 = (void *)fixpoint_mul(pSkyPolygon.v_18.z, (int)v20);
+      v22 = fixpoint_mul(pSkyPolygon.v_18.z, (int)v20);
       --LODWORD(v76);
       v20 = (char *)v20 + v72;
       X = v22 + pSkyPolygon.v_18.x;
@@ -4999,16 +4986,16 @@
       HIDWORD(v23) = v77 >> 16;//v23 = 0xfffffe0000000000
       v79 = (void *)(v23 / X);//X = FFFF9014(-28652)
       v77 = v17;
-      signed __int64 s = v74 + ((pSkyPolygon.ptr_38->angle_from_west * (signed __int64)v17) >> 16);// s = 0xFFFFFFFF FFFF3EE6
-      LODWORD(v80) = v66 + ((signed int)((unsigned __int64)(SLODWORD(s) * (v23 / X)) >> 16) >> 4);
+      signed __int64 s = v74 + fixpoint_mul(pSkyPolygon.ptr_38->angle_from_west, v17);// s = 0xFFFFFFFF FFFF3EE6
+      LODWORD(v80) = v66 + ((signed int)fixpoint_mul(SLODWORD(s), v23 / X) >> 4);
       array_507D30[_507D30_idx].u = ((double)SLODWORD(v80) * 0.000015259022) * (1.0 / (double)pSkyPolygon.pTexture->uTextureWidth);
 
-      signed __int64 s2 = (signed __int64)(v74_ + ((unsigned __int64)(pSkyPolygon.ptr_38->angle_from_south * (signed __int64)v17) >> 16));
-      LODWORD(v80) = v63 + ((signed int)((unsigned __int64)(SLODWORD(s2) * (v23 / X)) >> 16) >> 4);
+      signed __int64 s2 = v74_ + fixpoint_mul(pSkyPolygon.ptr_38->angle_from_south, v17);
+      LODWORD(v80) = v63 + ((signed int)fixpoint_mul(SLODWORD(s2), v23 / X) >> 4);
       array_507D30[_507D30_idx].v = ((double)SLODWORD(v80) * 0.000015259022) * v68;
 
-      v77 = (unsigned __int64)(SLODWORD(s) * (v23 / X)) >> 16;
-      LODWORD(v73) = (unsigned __int64)(SLODWORD(s2) * (v23 / X)) >> 16;
+      v77 = fixpoint_mul(SLODWORD(s), v23 / X);
+      LODWORD(v73) = fixpoint_mul(SLODWORD(s2), v23 / X);
       array_507D30[_507D30_idx]._rhw = 65536.0 / (double)(signed int)v79;
 
       //if ( (int)v81 >= pSkyPolygon.uNumVertices )
@@ -5073,19 +5060,18 @@
     v35 = (const void *)(v72 * (v70 - (unsigned __int64)(signed __int64)array_50AC10[j].vWorldViewProjY));
 
     //v78 = pSkyPolygon.ptr_38->viewing_angle_from_west_east;
-    v81 = (const void *)((unsigned __int64)(pSkyPolygon.ptr_38->viewing_angle_from_west_east * (signed __int64)(signed int)v35) >> 16);
-    v36 = (int)((char *)v81 + pSkyPolygon.ptr_38->angle_from_north);
+    //v81 = (const void *)fixpoint_mul(pSkyPolygon.ptr_38->viewing_angle_from_west_east, v35);
+    v36 = (int)(fixpoint_mul(pSkyPolygon.ptr_38->viewing_angle_from_west_east, (int)v35) + pSkyPolygon.ptr_38->angle_from_north);
 
     v81 = v35;
     v74 = v36;
     //v78 = pSkyPolygon.ptr_38->viewing_angle_from_north_south;
-    v81 = (const void *)((unsigned __int64)(pSkyPolygon.ptr_38->viewing_angle_from_north_south * (signed __int64)(signed int)v35) >> 16);
+    v81 = (const void *)fixpoint_mul(pSkyPolygon.ptr_38->viewing_angle_from_north_south, (int)v35);
     v78 = (int)v35;
     v75 = (RenderVertexSoft *)((char *)v81 + pSkyPolygon.ptr_38->angle_from_east);
-    v81 = (const void *)pSkyPolygon.v_18.z;
-    v78 = (unsigned __int64)(pSkyPolygon.v_18.z * (signed __int64)(signed int)v35) >> 16;
-    v37 = (const void *)(v72
-                       * (pBLVRenderParams->uViewportCenterX - (unsigned __int64)(signed __int64)array_50AC10[j].vWorldViewProjX));
+    //v81 = (const void *)pSkyPolygon.v_18.z;
+    v78 = fixpoint_mul(pSkyPolygon.v_18.z, (int)v35);
+    v37 = (const void *)(v72 * (pBLVRenderParams->uViewportCenterX - (unsigned __int64)(signed __int64)array_50AC10[j].vWorldViewProjX));
     v38 = (signed __int64)(array_50AC10[j].vWorldViewProjY - 1.0);
     v81 = 0;
     LODWORD(v76) = v38;
@@ -5103,7 +5089,7 @@
       v39 = v78;
 LABEL_36:
       v78 = pSkyPolygon.v_18.z;
-      v41 = (unsigned __int64)(pSkyPolygon.v_18.z * (signed __int64)v39) >> 16;
+      v41 = fixpoint_mul(pSkyPolygon.v_18.z, v39);
       --LODWORD(v76);
       v39 += v72;
       X = v41 + pSkyPolygon.v_18.x;
@@ -5113,11 +5099,8 @@
     {
       v79 = (void *)pSkyPolygon.v_18.z;
       v78 = 2 * LODWORD(v76);
-      v81 = (const void *)((unsigned __int64)(pSkyPolygon.v_18.z
-                                            * (signed __int64)(signed int)(signed __int64)(((double)v70
-                                                                                          - ((double)(2 * LODWORD(v76))
-                                                                                           - array_50AC10[j].vWorldViewProjY))
-                                                                                         * (double)v72)) >> 16);
+      v81 = (const void *)fixpoint_mul(pSkyPolygon.v_18.z, (((double)v70 - ((double)(2 * LODWORD(v76)) - array_50AC10[j].vWorldViewProjY))
+                                                                                         * (double)v72));
       X = (int)((char *)v81 + pSkyPolygon.v_18.x);
     }
     LODWORD(v42) = v77 << 16;
@@ -5126,23 +5109,23 @@
     v81 = v37;
 
     //v78 = pSkyPolygon.ptr_38->angle_from_west;
-    v81 = (const void *)((unsigned __int64)(pSkyPolygon.ptr_38->angle_from_west * (signed __int64)(signed int)v37) >> 16);
-    v43 = v74 + ((unsigned __int64)(pSkyPolygon.ptr_38->angle_from_west * (signed __int64)(signed int)v37) >> 16);
+    v81 = (const void *)fixpoint_mul(pSkyPolygon.ptr_38->angle_from_west, (int)v37);
+    v43 = v74 + fixpoint_mul(pSkyPolygon.ptr_38->angle_from_west, (int)v37);
     v74 = (unsigned int)v37;
     LODWORD(v76) = v43;
 
     //v78 = pSkyPolygon.ptr_38->angle_from_south;
-    v75 = (RenderVertexSoft *)((char *)v75 + ((unsigned __int64)(pSkyPolygon.ptr_38->angle_from_south * (signed __int64)(signed int)v37) >> 16));
-    v74 = (unsigned __int64)(v43 * v42 / X) >> 16;
-    v81 = (const void *)((unsigned __int64)((signed int)v75 * v42 / X) >> 16);
+    v75 = (RenderVertexSoft *)((char *)v75 + fixpoint_mul(pSkyPolygon.ptr_38->angle_from_south, (int)v37));
+    //v74 = fixpoint_mul(v43, v42 / X);
+    v81 = (const void *)fixpoint_mul((int)v75, v42 / X);
 
     //v34 += 48;
-    v78 = v66 + ((signed int)v74 >> 4);
+    //v78 = v66 + ((signed int)fixpoint_mul(v43, v42 / X) >> 4);
     //v44 = HIDWORD(v69)-- == 1;
-    v45 = (double)v78 * 0.000015259022;
-    v78 = v63 + ((signed int)((unsigned __int64)((signed int)v75 * v42 / X) >> 16) >> 4);
-    array_50AC10[j].u = v45 * (1.0 / (double)pSkyPolygon.pTexture->uTextureWidth);
-    array_50AC10[j].v = (double)v78 * 0.000015259022 * v68;
+    //v45 = (double)(v66 + ((signed int)fixpoint_mul(v43, v42 / X) >> 4)) * 0.000015259022;
+    //v78 = v63 + ((signed int)fixpoint_mul((int)v75, v42 / X) >> 4);
+    array_50AC10[j].u = ((double)(v66 + ((signed int)fixpoint_mul(v43, v42 / X) >> 4)) * 0.000015259022) * (1.0 / (double)pSkyPolygon.pTexture->uTextureWidth);
+    array_50AC10[j].v = ((double)(v66 + ((signed int)fixpoint_mul(v43, v42 / X) >> 4)) * 0.000015259022) * v68;
     //v46 = (double)(signed int)v79;
     array_50AC10[j].vWorldViewPosition.x = 0.000015258789 * (double)(signed int)v79;
     array_50AC10[j]._rhw = 65536.0 / (double)(signed int)v79;
@@ -8749,10 +8732,10 @@
             array_77EC08[pODMRenderParams->uNumPolygons].pODMFace = &pOutdoor->pBModels[model_id].pFaces[face_id];
             array_77EC08[pODMRenderParams->uNumPolygons].uNumVertices = pOutdoor->pBModels[model_id].pFaces[face_id].uNumVertices;
             array_77EC08[pODMRenderParams->uNumPolygons].field_59 = 5;
-            v51 = (unsigned __int64)(-pOutdoor->vSunlight.x * (signed __int64)pOutdoor->pBModels[model_id].pFaces[face_id].pFacePlane.vNormal.x) >> 16;
-            v53 = (unsigned __int64)(-pOutdoor->vSunlight.y * (signed __int64)pOutdoor->pBModels[model_id].pFaces[face_id].pFacePlane.vNormal.y) >> 16;
-            v52 = (unsigned __int64)(-pOutdoor->vSunlight.z * (signed __int64)pOutdoor->pBModels[model_id].pFaces[face_id].pFacePlane.vNormal.z) >> 16;
-            array_77EC08[pODMRenderParams->uNumPolygons].dimming_level = 20 - (20 * (signed int)(v51 + v53 + v52) >> 16);
+            v51 = fixpoint_mul(-pOutdoor->vSunlight.x, pOutdoor->pBModels[model_id].pFaces[face_id].pFacePlane.vNormal.x);
+            v53 = fixpoint_mul(-pOutdoor->vSunlight.y, pOutdoor->pBModels[model_id].pFaces[face_id].pFacePlane.vNormal.y);
+            v52 = fixpoint_mul(-pOutdoor->vSunlight.z, pOutdoor->pBModels[model_id].pFaces[face_id].pFacePlane.vNormal.z);
+            array_77EC08[pODMRenderParams->uNumPolygons].dimming_level = 20 - fixpoint_mul(20, v51 + v53 + v52);
             if ( array_77EC08[pODMRenderParams->uNumPolygons].dimming_level < 0 )
               array_77EC08[pODMRenderParams->uNumPolygons].dimming_level = 0;
             if ( array_77EC08[pODMRenderParams->uNumPolygons].dimming_level > 31 )
@@ -8915,13 +8898,13 @@
       // íàïðàâëåíèå íà ñåâåð è/èëè þã (ëèáî íà âîñòîê è/èëè çàïàä), çíà÷åíèþ 65536 åäåíèöàì(0õ10000) ñîîòâåòñòâóåò óãîë 90.
       // äâå ïåðåìåííûå õðàíÿò äàííûå ïî óãëó îáçîðà. field_14 ïî çàïàäó è âîñòîêó. field_20 ïî þãó è ñåâåðó
       // îò -25080 äî 25080
-      v39 = (unsigned __int64)(pSkyPolygon.ptr_38->viewing_angle_from_west_east * (signed __int64)(v33 * (v30 - floor(array_50AC10[i].vWorldViewProjY + 0.5)))) >> 16;
+      v39 = fixpoint_mul(pSkyPolygon.ptr_38->viewing_angle_from_west_east, v33 * (v30 - floor(array_50AC10[i].vWorldViewProjY + 0.5)));
       v35 = v39 + pSkyPolygon.ptr_38->angle_from_north;
 
-      v39 = (unsigned __int64)(pSkyPolygon.ptr_38->viewing_angle_from_north_south * (signed __int64)(v33 * (v30 - floor(array_50AC10[i].vWorldViewProjY + 0.f)))) >> 16;
+      v39 = fixpoint_mul(pSkyPolygon.ptr_38->viewing_angle_from_north_south, v33 * (v30 - floor(array_50AC10[i].vWorldViewProjY + 0.f)));
       v36 = v39 + pSkyPolygon.ptr_38->angle_from_east;
 
-      v9 = (unsigned __int64)(pSkyPolygon.v_18.z * (signed __int64)(v33 * (v30 - floor(array_50AC10[i].vWorldViewProjY + 0.5)))) >> 16;
+      v9 = fixpoint_mul(pSkyPolygon.v_18.z, v33 * (v30 - floor(array_50AC10[i].vWorldViewProjY + 0.5)));
       v10 = pSkyPolygon.v_18.x + v9;
       if ( v10 > 0 )
         v10 = 0;
@@ -8941,7 +8924,7 @@
               break;
           }
         }
-        v16 = (unsigned __int64)(pSkyPolygon.v_18.z * (signed __int64)v14) >> 16;
+        v16 = fixpoint_mul(pSkyPolygon.v_18.z, v14);
         --v32;
         v14 += v33;
         v10 = pSkyPolygon.v_18.x + v16;
@@ -8951,14 +8934,12 @@
       v18 = v17 / v10;
       if ( v18 < 0 )
         v18 = pODMRenderParams->shading_dist_mist;
-      v37 = v35 + ((unsigned __int64)(pSkyPolygon.ptr_38->angle_from_west * (signed __int64)v13) >> 16);
-      v35 = 224 * pMiscTimer->uTotalGameTimeElapsed
-          + ((signed int)((unsigned __int64)(v37 * (signed __int64)v18) >> 16) >> 3);
+      v37 = v35 + fixpoint_mul(pSkyPolygon.ptr_38->angle_from_west, v13);
+      v35 = 224 * pMiscTimer->uTotalGameTimeElapsed + ((signed int)fixpoint_mul(v37, v18) >> 3);
       array_50AC10[i].u = (double)v35 / ((double)pSkyPolygon.pTexture->uTextureWidth * 65536.0);
 
-      v36 = v36 + ((unsigned __int64)(pSkyPolygon.ptr_38->angle_from_south * (signed __int64)v13) >> 16);
-      v35 = 224 * pMiscTimer->uTotalGameTimeElapsed
-         + ((signed int)((unsigned __int64)(v36 * (signed __int64)v18) >> 16) >> 3);
+      v36 = v36 + fixpoint_mul(pSkyPolygon.ptr_38->angle_from_south, v13);
+      v35 = 224 * pMiscTimer->uTotalGameTimeElapsed + ((signed int)fixpoint_mul(v36, v18) >> 3);
       array_50AC10[i].v = (double)v35 / ((double)pSkyPolygon.pTexture->uTextureHeight * 65536.0);
 
       array_50AC10[i].vWorldViewPosition.x = (double)0x2000;//pODMRenderParams->shading_dist_mist 8192
@@ -9039,6 +9020,19 @@
       for (uint x = 0; x < width; ++x)
       {
         //*v3 = pRenderer->ReadPixel16((int)(x* interval_x + 8.0), (int)(y * interval_y + 8.0));//screen_data[screen_y + (int)(x* interval_x + 8.0)];
+		  /*
+        if (ddpfPrimarySuface.dwRGBBitCount == 32)
+        {
+          auto p = (unsigned __int32 *)pRenderer->pTargetSurface + (int)(x * interval_x + 8.0) + (int)(y * interval_y + 8.0) * pRenderer->uTargetSurfacePitch;
+          *v3 = Color16((*p >> 16) & 255, (*p >> 8) & 255, *p & 255);
+        }
+        else if (ddpfPrimarySuface.dwRGBBitCount == 16)
+        {
+          auto p = (unsigned __int16 *)pRenderer->pTargetSurface + (int)(x * interval_x + 8.0) + (int)(y * interval_y + 8.0) * pRenderer->uTargetSurfacePitch;
+          *v3 = *p;
+        }
+		  */
+		  pRenderer->pTargetSurface;
         if (Dst.ddpfPixelFormat.dwRGBBitCount == 32)
         {
           auto p = (unsigned __int32 *)Dst.lpSurface + (int)(x * interval_x + 8.0) + y/* (int)(y * interval_y + 8.0)*/ * Dst.lPitch;
--- a/SpriteObject.cpp	Thu Feb 06 00:38:03 2014 +0600
+++ b/SpriteObject.cpp	Thu Feb 06 17:20:12 2014 +0600
@@ -274,9 +274,7 @@
     }
   }
   else
-  {
     v58 = 1;
-  }
   if ( !(object->uFlags & OBJECT_DESC_NO_GRAVITY) )
   {
     if ( v58 )
@@ -493,21 +491,19 @@
                   + face->pFacePlane.vNormal.z * pSpriteObjects[uLayingItemID].vVelocity.z) >> 16;
           if ( (stru_721530.speed >> 3) > v56 )
             v56 = stru_721530.speed >> 3;
-          v57 = (unsigned __int64)(v56 * (signed __int64)face->pFacePlane.vNormal.x) >> 16;
-          v58 = (unsigned __int64)(v56 * (signed __int64)face->pFacePlane.vNormal.y) >> 16;
-          v60 = (unsigned __int64)(v56 * (signed __int64)face->pFacePlane.vNormal.z) >> 16;
-          pSpriteObjects[uLayingItemID].vVelocity.x += 2 * v57;
-          pSpriteObjects[uLayingItemID].vVelocity.y += 2 * v58;
+          //v57 = fixpoint_mul(v56, face->pFacePlane.vNormal.x);
+          //v58 = fixpoint_mul(v56, face->pFacePlane.vNormal.y);
+          v60 = fixpoint_mul(v56, face->pFacePlane.vNormal.z);
+          pSpriteObjects[uLayingItemID].vVelocity.x += 2 * fixpoint_mul(v56, face->pFacePlane.vNormal.x);
+          pSpriteObjects[uLayingItemID].vVelocity.y += 2 * fixpoint_mul(v56, face->pFacePlane.vNormal.y);
           if ( face->pFacePlane.vNormal.z <= 32000 )
-          {
             v37 = 2 * (short)v60;
-          }
           else
           {
             v36 = v60;
             pSpriteObjects[uLayingItemID].vVelocity.z += (signed __int16)v60;
-            v58 = (unsigned __int64)(32000 * (signed __int64)(signed int)v36) >> 16;
-            v37 = (unsigned int)(32000 * v36) >> 16;
+            v58 = fixpoint_mul(0x7D00, v36);
+            v37 = fixpoint_mul(32000, v36);
           }
           pSpriteObjects[uLayingItemID].vVelocity.z += v37;
           if ( BYTE3(face->uAttributes) & 0x10 )
@@ -518,7 +514,7 @@
         if ( pSpriteObjects[uLayingItemID].vVelocity.x * pSpriteObjects[uLayingItemID].vVelocity.x
            + pSpriteObjects[uLayingItemID].vVelocity.y * pSpriteObjects[uLayingItemID].vVelocity.y >= 400 )
         {
-          if ( BYTE3(face->uAttributes) & 0x10 )
+          if ( face->uAttributes & 0x10000000 )
             EventProcessor(face->sCogTriggeredID, 0, 1);
           goto LABEL_74;
         }
@@ -536,8 +532,8 @@
                      + pSpriteObjects[uLayingItemID].vVelocity.y * pSpriteObjects[uLayingItemID].vVelocity.y);
     v38 = stru_5C6E00->Atan2(pSpriteObjects[uLayingItemID].vPosition.x - pLevelDecorations[PID_ID(stru_721530.uFaceID)].vPosition.x,
                              pSpriteObjects[uLayingItemID].vPosition.y - pLevelDecorations[PID_ID(stru_721530.uFaceID)].vPosition.y);
-    pSpriteObjects[uLayingItemID].vVelocity.x = (unsigned __int64)(stru_5C6E00->Cos(v38) * (signed __int64)v57) >> 16;
-    pSpriteObjects[uLayingItemID].vVelocity.y = (unsigned __int64)(stru_5C6E00->Sin(v38 - stru_5C6E00->uIntegerHalfPi) * (signed __int64)v57) >> 16;
+    pSpriteObjects[uLayingItemID].vVelocity.x = fixpoint_mul(stru_5C6E00->Cos(v38), v57);
+    pSpriteObjects[uLayingItemID].vVelocity.y = fixpoint_mul(stru_5C6E00->Sin(v38 - stru_5C6E00->uIntegerHalfPi), v57);
     goto LABEL_74;
   }
 }
--- a/Sprites.cpp	Thu Feb 06 00:38:03 2014 +0600
+++ b/Sprites.cpp	Thu Feb 06 17:20:12 2014 +0600
@@ -13,7 +13,7 @@
 #include "MM7.h"
 #include "Actor.h"
 #include "Level/Decoration.h"
-
+#include "OurMath.h"
 
 
 
@@ -784,8 +784,7 @@
                                   if ( v14 > 0 )
                                   {
                                     v15 = v5->vPosition.z;
-                                    v16 = stru_721530.normal.z
-                                        + ((unsigned __int64)(stru_721530.direction.z * (signed __int64)v14) >> 16);
+                                    v16 = stru_721530.normal.z + fixpoint_mul(stru_721530.direction.z, v14);
                                     if ( v16 >= v15 )
                                     {
                                       if ( v16 <= v22 + v15 )
--- a/Viewport.cpp	Thu Feb 06 00:38:03 2014 +0600
+++ b/Viewport.cpp	Thu Feb 06 17:20:12 2014 +0600
@@ -127,7 +127,7 @@
 //----- (00443249) --------------------------------------------------------
 void ViewingParams::CenterOnParty()
 {
-  this->uMapBookMapZoom = (32768 * (__int64)this->uMapBookMapZoom) >> 16;
+  this->uMapBookMapZoom = fixpoint_mul(0x8000, this->uMapBookMapZoom);
   if (this->uMapBookMapZoom < 384)
     this->uMapBookMapZoom = 384;
 
--- a/mm7_2.cpp	Thu Feb 06 00:38:03 2014 +0600
+++ b/mm7_2.cpp	Thu Feb 06 17:20:12 2014 +0600
@@ -1581,9 +1581,6 @@
 //----- (0045063B) --------------------------------------------------------
 int __fastcall _45063B_spawn_some_monster(MapInfo *a1, int a2)
 {
-  signed int v2; // edi@1
-  Actor *v3; // esi@2
-  //signed __int64 v4; // qax@3
   int result; // eax@8
   int v6; // edi@11
   int v7; // ebx@11
@@ -1599,11 +1596,7 @@
   int v17; // eax@20
   int v18; // eax@21
   SpawnPointMM7 v19; // [sp+Ch] [bp-38h]@1
-  int v20; // [sp+24h] [bp-20h]@11
-  //MapInfo *v21; // [sp+28h] [bp-1Ch]@1
   int v22; // [sp+2Ch] [bp-18h]@3
-  int v23; // [sp+30h] [bp-14h]@11
-  //int v24; // [sp+34h] [bp-10h]@1
   unsigned int uFaceID; // [sp+38h] [bp-Ch]@10
   int v26; // [sp+3Ch] [bp-8h]@11
   int v27; // [sp+40h] [bp-4h]@11
@@ -1611,27 +1604,85 @@
   if (!uNumActors)
     return 0;
 
-  //v21 = a1;
-  //v24 = a2;
-  v2 = 0;
-  v3 = pActors.data();
-  while ( 1 )
+  for ( uint mon_id = 0; mon_id < uNumActors; ++mon_id )
   {
-    if (v3->pMonsterInfo.uID >= 121 && v3->pMonsterInfo.uID <= 123 || // Dwarf FemaleC A-C
-        v3->pMonsterInfo.uID >= 124 && v3->pMonsterInfo.uID <= 126 || // Dwarf MaleA A-C
-        v3->pMonsterInfo.uID >= 133 && v3->pMonsterInfo.uID <= 135 || // Peasant Elf FemaleA A-C
-        !v3->CanAct())
+    if ((pActors[mon_id].pMonsterInfo.uID < 121 || pActors[mon_id].pMonsterInfo.uID > 123) && // Dwarf FemaleC A-C
+        (pActors[mon_id].pMonsterInfo.uID < 124 || pActors[mon_id].pMonsterInfo.uID > 126) && // Dwarf MaleA A-C
+        (pActors[mon_id].pMonsterInfo.uID < 133 || pActors[mon_id].pMonsterInfo.uID > 135) && // Peasant Elf FemaleA A-C
+         pActors[mon_id].CanAct())
     {
-      ++v2;
-      ++v3;
-
-      if (v2 >= uNumActors)
-        return 0;
-
-      continue;
+      if ( uCurrentlyLoadedLevelType == LEVEL_Outdoor )
+      {
+        v22 = 0;
+        uint face_id = 0;
+        for ( face_id; face_id < 100; ++face_id )
+        {
+          v6 = rand() % 1024 + 512;
+          v7 = rand() % (signed int)stru_5C6E00->uIntegerDoublePi;
+          v19.vPosition.x = pParty->vPosition.x + fixpoint_mul(stru_5C6E00->Cos(v7), v6);
+          v8 = 0;
+          v19.uIndex = a2;
+          v19.vPosition.y = fixpoint_mul(stru_5C6E00->Sin(v7), v6) + pParty->vPosition.y;
+          v19.vPosition.z = pParty->vPosition.z;
+          v26 = 0;
+          v27 = 0;
+          v19.vPosition.z = ODM_GetFloorLevel(v19.vPosition.x, v19.vPosition.y, pParty->vPosition.z, 0, &v26, &v27, 0);
+          for( int i = 0; i < pOutdoor->uNumBModels; i++ )
+          {
+            v9 = abs(v19.vPosition.y - pOutdoor->pBModels[i].vBoundingCenter.y);
+            v10 = abs(v19.vPosition.x - pOutdoor->pBModels[i].vBoundingCenter.x);
+            if ( int_get_vector_length(v10, v9, 0) < pOutdoor->pBModels[i].sBoundingRadius + 256 )
+            {
+              v22 = 1;
+              break;
+            }
+          }
+          if ( v22 )
+          {
+            v11 = face_id == 100;
+            break;
+          }
+        }
+        v11 = face_id == 100;
+      }
+      else if ( uCurrentlyLoadedLevelType == LEVEL_Indoor )
+      {
+        v22 = pIndoor->GetSector(pParty->vPosition.x, pParty->vPosition.y, pParty->vPosition.z);
+        for ( uint i = 0; i < 100; ++i )
+        {
+          v12 = rand() % 512 + 256;
+          v13 = rand();
+          v14 = v13 % (signed int)stru_5C6E00->uIntegerDoublePi;
+          v15 = stru_5C6E00->Cos(v13 % (signed int)stru_5C6E00->uIntegerDoublePi);
+          v19.vPosition.x = pParty->vPosition.x + fixpoint_mul(v15, v12);
+          v16 = stru_5C6E00->Sin(v13 % (signed int)stru_5C6E00->uIntegerDoublePi);
+          v19.vPosition.y = fixpoint_mul(v16, v12) + pParty->vPosition.y;
+          v19.vPosition.z = pParty->vPosition.z;
+          v19.uIndex = a2;
+          v17 = pIndoor->GetSector(v19.vPosition.x, v19.vPosition.y, pParty->vPosition.z);
+          if ( v17 == v22 )
+          {
+            v18 = BLV_GetFloorLevel(v19.vPosition.x, v19.vPosition.y, v19.vPosition.z, v17, &uFaceID);
+            v19.vPosition.z = v18;
+            if ( v18 != -30000 )
+            {
+              if ( abs(v18 - pParty->vPosition.z) <= 1024 )
+                break;
+            }
+          }
+        }
+        v11 = v26 == 100;
+      }
+      if ( v11 )
+        result = 0;
+      else
+      {
+        SpawnEncounter(a1, &v19, 0, 0, 1);
+        result = a2;
+      }
     }
 
-    break;
+    //break;
     //v22 = v3->pMonsterInfo.uID - 1;
     //v4 = (signed __int64)((double)v22 * 0.3333333333333333);
     //if ( (int)v4 != 40 )
@@ -1644,99 +1695,6 @@
     //if ( v2 >= (signed int)uNumActors )
     //  goto LABEL_8;
   }
-  if ( uCurrentlyLoadedLevelType == LEVEL_Outdoor )
-  {
-    v22 = 0;
-    uFaceID = 0;
-    while ( 1 )
-    {
-      ++uFaceID;
-      v6 = rand() % 1024 + 512;
-      v7 = rand() % (signed int)stru_5C6E00->uIntegerDoublePi;
-      v20 = stru_5C6E00->Cos(v7);
-      v23 = (unsigned __int64)(v20 * (signed __int64)v6) >> 16;
-      v19.vPosition.x = pParty->vPosition.x + v23;
-      v20 = stru_5C6E00->Sin(v7);
-      v23 = (unsigned __int64)(v20 * (signed __int64)v6) >> 16;
-      v8 = 0;
-      v19.uIndex = a2;
-      v19.vPosition.y = v23 + pParty->vPosition.y;
-      v19.vPosition.z = pParty->vPosition.z;
-      v26 = 0;
-      v27 = 0;
-      v19.vPosition.z = ODM_GetFloorLevel(
-                          v19.vPosition.x,
-                          v23 + pParty->vPosition.y,
-                          pParty->vPosition.z,
-                          0,
-                          &v26,
-                          &v27,
-                          0);
-      v23 = 0;
-	  for( int i = 0; i < pOutdoor->uNumBModels; i++ )
-	  {
-		v9 = abs(v19.vPosition.y - pOutdoor->pBModels[i].vBoundingCenter.y);
-		v10 = abs(v19.vPosition.x - pOutdoor->pBModels[i].vBoundingCenter.x);
-		if ( int_get_vector_length(v10, v9, 0) < pOutdoor->pBModels[i].sBoundingRadius + 256 )
-		{
-		  v22 = 1;
-		  break;
-		}
-	  }
-      v11 = uFaceID == 100;
-      if ( uFaceID >= 100 )
-        break;
-      if ( v22 )
-      {
-        v11 = uFaceID == 100;
-        break;
-      }
-    }
-  }
-  else
-  {
-    v26 = 0;
-    v22 = pIndoor->GetSector(pParty->vPosition.x, pParty->vPosition.y, pParty->vPosition.z);
-    do
-    {
-      ++v26;
-      v12 = rand() % 512 + 256;
-      v13 = rand();
-      v14 = v13 % (signed int)stru_5C6E00->uIntegerDoublePi;
-      v15 = stru_5C6E00->Cos(v13 % (signed int)stru_5C6E00->uIntegerDoublePi);
-      v20 = v15;
-      v23 = (unsigned __int64)(v15 * (signed __int64)v12) >> 16;
-      v19.vPosition.x = pParty->vPosition.x + v23;
-      v16 = stru_5C6E00->Sin(v13 % (signed int)stru_5C6E00->uIntegerDoublePi);
-      v20 = v16;
-      v23 = (unsigned __int64)(v16 * (signed __int64)v12) >> 16;
-      v19.vPosition.y = v23 + pParty->vPosition.y;
-      v19.vPosition.z = pParty->vPosition.z;
-      v19.uIndex = a2;
-      v17 = pIndoor->GetSector(v19.vPosition.x, v23 + pParty->vPosition.y, pParty->vPosition.z);
-      if ( v17 == v22 )
-      {
-        v18 = BLV_GetFloorLevel(v19.vPosition.x, v19.vPosition.y, v19.vPosition.z, v17, &uFaceID);
-        v19.vPosition.z = v18;
-        if ( v18 != -30000 )
-        {
-          if ( abs(v18 - pParty->vPosition.z) <= 1024 )
-            break;
-        }
-      }
-    }
-    while ( v26 < 100 );
-    v11 = v26 == 100;
-  }
-  if ( v11 )
-  {
-    result = 0;
-  }
-  else
-  {
-    SpawnEncounter(a1, &v19, 0, 0, 1);
-    result = a2;
-  }
   return result;
 }
 
--- a/mm7_3.cpp	Thu Feb 06 00:38:03 2014 +0600
+++ b/mm7_3.cpp	Thu Feb 06 17:20:12 2014 +0600
@@ -455,7 +455,7 @@
       v5 = (v10 * stru_721530.direction.y + v11 * stru_721530.direction.x) >> 16;
       if ( v5 > 0 )
       {
-        v6 = ((unsigned __int64)(stru_721530.direction.z * (signed __int64)v5) >> 16) + stru_721530.normal.z;
+        v6 = fixpoint_mul(stru_721530.direction.z, v5) + stru_721530.normal.z;
         result = pParty->vPosition.z;
         if ( v6 >= pParty->vPosition.z )
         {
@@ -930,9 +930,9 @@
                       + face->pFacePlane.vNormal.z * pActors[v75].vPosition.z) >> 16);
                 if ( v46 > 0 )
                 {
-                  pActors[v75].vPosition.x += (unsigned int)(v46 * face->pFacePlane.vNormal.x) >> 16;
-                  pActors[v75].vPosition.y += (unsigned int)(v46 * face->pFacePlane.vNormal.y) >> 16;
-                  pActors[v75].vPosition.z += (unsigned int)(v46 * face->pFacePlane.vNormal.z) >> 16;
+                  pActors[v75].vPosition.x += fixpoint_mul(v46, face->pFacePlane.vNormal.x);
+                  pActors[v75].vPosition.y += fixpoint_mul(v46, face->pFacePlane.vNormal.y);
+                  pActors[v75].vPosition.z += fixpoint_mul(v46, face->pFacePlane.vNormal.z);
                 }
                 pActors[v75].uYawAngle = stru_5C6E00->Atan2(pActors[v75].vVelocity.x, pActors[v75].vVelocity.y);
               }
@@ -1122,7 +1122,7 @@
   int v13; // esi@3
   int v14; // edi@4
   signed __int64 v15; // qtt@6
-  __int16 v16; // si@7
+  //__int16 v16; // si@7
   int a7a; // [sp+30h] [bp+18h]@7
   int a9b; // [sp+38h] [bp+20h]@3
   int a9a; // [sp+38h] [bp+20h]@3
@@ -1132,9 +1132,9 @@
 
   if ( a10 && face->Ethereal() )
     return 0;
-  v11 = (unsigned __int64)(dir_x * (signed __int64)face->pFacePlane_old.vNormal.x) >> 16;
-  a10b = (unsigned __int64)(dir_y * (signed __int64)face->pFacePlane_old.vNormal.y) >> 16;
-  a9b = (unsigned __int64)(dir_z * (signed __int64)face->pFacePlane_old.vNormal.z) >> 16;
+  v11 = fixpoint_mul(dir_x, face->pFacePlane_old.vNormal.x);
+  a10b = fixpoint_mul(dir_y, face->pFacePlane_old.vNormal.y);
+  a9b = fixpoint_mul(dir_z, face->pFacePlane_old.vNormal.z);
   v12 = v11 + a9b + a10b;
   a9a = v11 + a9b + a10b;
   v13 = (a1 << 16)
@@ -1160,13 +1160,10 @@
     a10a = 0;
     v14 = abs(v13) >> 16;
   }
-  v16 = pos_y + ((unsigned int)((unsigned __int64)(a10a * (signed __int64)dir_y) >> 16) >> 16);
-  LOWORD(a7a) = (short)pos_x
-              + ((unsigned int)((unsigned __int64)(a10a * (signed __int64)dir_x) >> 16) >> 16)
-              - ((unsigned int)(v14 * face->pFacePlane_old.vNormal.x) >> 16);
-  HIWORD(a7a) = v16 - ((unsigned int)(v14 * face->pFacePlane_old.vNormal.y) >> 16);
-  if ( !sub_475665(face, a7a, (short)pos_z + ((unsigned int)((unsigned __int64)(a10a * (signed __int64)dir_z) >> 16) >> 16)
-        - ((unsigned int)(v14 * face->pFacePlane_old.vNormal.z) >> 16)) )
+  //v16 = pos_y + ((unsigned int)fixpoint_mul(a10a, dir_y) >> 16);
+  LOWORD(a7a) = (short)pos_x + ((unsigned int)fixpoint_mul(a10a, dir_x) >> 16) - fixpoint_mul(v14, face->pFacePlane_old.vNormal.x);
+  HIWORD(a7a) = pos_y + ((unsigned int)fixpoint_mul(a10a, dir_y) >> 16) - fixpoint_mul(v14, face->pFacePlane_old.vNormal.y);
+  if ( !sub_475665(face, a7a, (short)pos_z + ((unsigned int)fixpoint_mul(a10a, dir_z) >> 16) - fixpoint_mul(v14, face->pFacePlane_old.vNormal.z)) )
     return 0;
   *a2 = a10a >> 16;
   if ( a10a >> 16 < 0 )
@@ -1182,7 +1179,7 @@
   int v14; // esi@3
   int v15; // edi@4
   signed __int64 v16; // qtt@6
-  __int16 v17; // si@7
+  //__int16 v17; // si@7
   int a7a; // [sp+30h] [bp+18h]@7
   int a1b; // [sp+38h] [bp+20h]@3
   int a1a; // [sp+38h] [bp+20h]@3
@@ -1192,9 +1189,9 @@
 
   if ( a11 && face->Ethereal() )
     return false;
-  v12 = (unsigned __int64)(dir_x * (signed __int64)face->pFacePlane_old.vNormal.x) >> 16;
-  a11b = (unsigned __int64)(dir_y * (signed __int64)face->pFacePlane_old.vNormal.y) >> 16;
-  a1b = (unsigned __int64)(dir_z * (signed __int64)face->pFacePlane_old.vNormal.z) >> 16;
+  v12 = fixpoint_mul(dir_x, face->pFacePlane_old.vNormal.x);
+  a11b = fixpoint_mul(dir_y, face->pFacePlane_old.vNormal.y);
+  a1b = fixpoint_mul(dir_z, face->pFacePlane_old.vNormal.z);
   v13 = v12 + a1b + a11b;
   a1a = v12 + a1b + a11b;
   v14 = (a1 << 16)
@@ -1220,13 +1217,10 @@
     a11a = 0;
     v15 = abs(v14) >> 16;
   }
-  v17 = Y + ((unsigned int)((unsigned __int64)(a11a * (signed __int64)dir_y) >> 16) >> 16);
-  LOWORD(a7a) = (short)X
-              + ((unsigned int)((unsigned __int64)(a11a * (signed __int64)dir_x) >> 16) >> 16)
-              - ((unsigned int)(v15 * face->pFacePlane_old.vNormal.x) >> 16);
-  HIWORD(a7a) = v17 - ((unsigned int)(v15 * face->pFacePlane_old.vNormal.y) >> 16);
-  if ( !sub_4759C9(face, a10, a7a, (short)Z + ((unsigned int)((unsigned __int64)(a11a * (signed __int64)dir_z) >> 16) >> 16)
-        - ((unsigned int)(v15 * face->pFacePlane_old.vNormal.z) >> 16)) )
+  //v17 = Y + ((unsigned int)fixpoint_mul(a11a, dir_y) >> 16);
+  LOWORD(a7a) = (short)X + ((unsigned int)fixpoint_mul(a11a, dir_x) >> 16) - fixpoint_mul(v15, face->pFacePlane_old.vNormal.x);
+  HIWORD(a7a) = Y + ((unsigned int)fixpoint_mul(a11a, dir_y) >> 16) - fixpoint_mul(v15, face->pFacePlane_old.vNormal.y);
+  if ( !sub_4759C9(face, a10, a7a, (short)Z + ((unsigned int)fixpoint_mul(a11a, dir_z) >> 16) - fixpoint_mul(v15, face->pFacePlane_old.vNormal.z)) )
     return false;
   *a2 = a11a >> 16;
   if ( a11a >> 16 < 0 )
@@ -1426,7 +1420,7 @@
           || (word_720A70_intercepts_xs_plus_xs[v21] + ((signed int)(((unsigned __int64)(v19
               / (word_7209A0_intercepts_ys_plus_ys[v21 + 1] - word_7209A0_intercepts_ys_plus_ys[v21])
               * ((v24 - (signed int)word_7209A0_intercepts_ys_plus_ys[v21]) << 16)) >> 16)
-              + 32768) >> 16) >= v23) )
+              + 0x8000) >> 16) >= v23) )
           ++a4d;
       }
     }
@@ -1461,13 +1455,12 @@
   v4 = a4;
   v15 = a2;
   v14 = a1;
-  if ( BYTE3(a4->uAttributes) & 0x20
-    || (v5 = (unsigned __int64)(a2->x * (signed __int64)a4->pFacePlane_old.vNormal.x) >> 16,
-        a4b = (unsigned __int64)(a2->y * (signed __int64)a4->pFacePlane_old.vNormal.y) >> 16,
-        v6 = (unsigned __int64)(a2->z * (signed __int64)v4->pFacePlane_old.vNormal.z) >> 16,
-        v7 = v5 + v6 + a4b,
-        (v16 = v5 + v6 + a4b) == 0)
-    || v7 > 0 && !v4->Portal())
+  v5 = fixpoint_mul(a2->x, a4->pFacePlane_old.vNormal.x);
+  a4b = fixpoint_mul(a2->y, a4->pFacePlane_old.vNormal.y);
+  v6 = fixpoint_mul(a2->z, v4->pFacePlane_old.vNormal.z);
+  v7 = v5 + v6 + a4b;
+  //(v16 = v5 + v6 + a4b) == 0;
+  if ( a4->uAttributes & 0x20000000 || !v7 || v7 > 0 && !v4->Portal())
     return 0;
   v8 = v4->pFacePlane_old.vNormal.z * a1->z;
   v9 = -(v4->pFacePlane_old.dist + v8 + a1->y * v4->pFacePlane_old.vNormal.y + a1->x * v4->pFacePlane_old.vNormal.x);
@@ -1482,17 +1475,14 @@
       return 0;
   }
   a4c = abs(-(v4->pFacePlane_old.dist + v8 + a1->y * v4->pFacePlane_old.vNormal.y + a1->x * v4->pFacePlane_old.vNormal.x)) >> 14;
-  if ( a4c > abs(v7)
-    || (LODWORD(v10) = v9 << 16, HIDWORD(v10) = v9 >> 16, a4a = v10 / v16, v17 = v10 / v16, v17 > *a3 << 16)
-    || (v11 = v14,
-        LOWORD(v12) = LOWORD(v14->x)
-                    + (((unsigned int)((unsigned __int64)(v17 * (signed __int64)v15->x) >> 16) + 32768) >> 16),
-        HIWORD(v12) = LOWORD(v11->y)
-                    + (((unsigned int)((unsigned __int64)(v17 * (signed __int64)v15->y) >> 16) + 32768) >> 16),
-        !sub_475665(
-           v4,
-           v12,
-           LOWORD(v11->z) + (((unsigned int)((unsigned __int64)(v17 * (signed __int64)v15->z) >> 16) + 32768) >> 16))) )
+  v11 = v14;
+  LODWORD(v10) = v9 << 16;
+  HIDWORD(v10) = v9 >> 16;
+  a4a = v10 / v7;
+  v17 = v10 / v7;
+  LOWORD(v12) = LOWORD(v14->x) + (((unsigned int)fixpoint_mul(v17, v15->x) + 0x8000) >> 16);
+  HIWORD(v12) = LOWORD(v11->y) + (((unsigned int)fixpoint_mul(v17, v15->y) + 0x8000) >> 16);
+  if ( a4c > abs(v7) || ( v17 > *a3 << 16) || !sub_475665(v4, v12, LOWORD(v11->z) + (((unsigned int)fixpoint_mul(v17, v15->z) + 0x8000) >> 16)) )
     return 0;
   *a3 = a4a >> 16;
   return 1;
@@ -1504,7 +1494,7 @@
   int v10; // ST20_4@2
   int v11; // ST28_4@2
   int v12; // ST24_4@2
-  char v13; // zf@2
+  int v13; // zf@2
   int v14; // edi@2
   signed int v16; // esi@5
   int v17; // ST20_4@9
@@ -1514,15 +1504,13 @@
   int v23; // [sp+1Ch] [bp-8h]@10
   signed int v24; // [sp+20h] [bp-4h]@10
 
-  if ( a2->Ethereal()
-    || (v10 = (unsigned __int64)(a6 * (signed __int64)a2->pFacePlane_old.vNormal.x) >> 16,
-        v11 = (unsigned __int64)(a7 * (signed __int64)a2->pFacePlane_old.vNormal.y) >> 16,
-        v12 = (unsigned __int64)(a8 * (signed __int64)a2->pFacePlane_old.vNormal.z) >> 16,
-        v13 = v10 + v12 + v11 == 0,
-        v14 = v10 + v12 + v11,
-        v22 = v10 + v12 + v11,
-        v13)
-    || v14 > 0 && !a2->Portal())
+  v10 = fixpoint_mul(a6, a2->pFacePlane_old.vNormal.x);
+  v11 = fixpoint_mul(a7, a2->pFacePlane_old.vNormal.y);
+  v12 = fixpoint_mul(a8, a2->pFacePlane_old.vNormal.z);
+  v13 = v10 + v12 + v11;
+  v14 = v10 + v12 + v11;
+  v22 = v10 + v12 + v11;
+  if ( a2->Ethereal() || !v13 || v14 > 0 && !a2->Portal())
     return 0;
   v16 = -(a2->pFacePlane_old.dist + a4 * a2->pFacePlane_old.vNormal.y + a3 * a2->pFacePlane_old.vNormal.x + a5 * a2->pFacePlane_old.vNormal.z);
   if ( v14 <= 0 )
@@ -1536,12 +1524,13 @@
       return 0;
   }
   v17 = abs(-(a2->pFacePlane_old.dist + a4 * a2->pFacePlane_old.vNormal.y + a3 * a2->pFacePlane_old.vNormal.x + a5 * a2->pFacePlane_old.vNormal.z)) >> 14;
-  if ( v17 > abs(v14)
-    || (LODWORD(v18) = v16 << 16, HIDWORD(v18) = v16 >> 16, v24 = v18 / v22, v23 = v18 / v22, v23 > *a1 << 16)
-    || (LOWORD(v19) = a3 + (((unsigned int)((unsigned __int64)(v23 * (signed __int64)a6) >> 16) + 32768) >> 16),
-        HIWORD(v19) = a4 + (((unsigned int)((unsigned __int64)(v23 * (signed __int64)a7) >> 16) + 32768) >> 16),
-        !sub_4759C9(a2, a9, v19,
-           a5 + (((unsigned int)((unsigned __int64)(v23 * (signed __int64)a8) >> 16) + 32768) >> 16))) )
+  LODWORD(v18) = v16 << 16;
+  HIDWORD(v18) = v16 >> 16;
+  v24 = v18 / v22;
+  v23 = v18 / v22;
+  LOWORD(v19) = a3 + (((unsigned int)fixpoint_mul(v23, a6) + 0x8000) >> 16);
+  HIWORD(v19) = a4 + (((unsigned int)fixpoint_mul(v23, a7) + 0x8000) >> 16);
+  if ( v17 > abs(v14) || v23 > *a1 << 16 || !sub_4759C9(a2, a9, v19, a5 + (((unsigned int)fixpoint_mul(v23, a8) + 0x8000) >> 16)) )
     return 0;
   *a1 = v24 >> 16;
   return 1;
@@ -3338,7 +3327,7 @@
   RenderBillboardTransform_local0 v10; // [sp+Ch] [bp-5Ch]@1
   int v11; // [sp+5Ch] [bp-Ch]@6
   int v12; // [sp+60h] [bp-8h]@1
-  int v13; // [sp+64h] [bp-4h]@6
+  //int v13; // [sp+64h] [bp-4h]@6
 
   v10.sParentBillboardID = -1;
   v10.pTarget = pRenderer->pTargetSurface;
@@ -3375,18 +3364,18 @@
             //v7 = v6;
             v11 = pOtherOverlayList->pOverlays[i].field_E;
             //v13 = pFrame->scale;
-            v13 = (unsigned __int64)(v11 * (signed __int64)pFrame->scale) >> 16;
+            //v13 = fixpoint_mul(v11, pFrame->scale);
             v10.uScreenSpaceX = pOtherOverlayList->pOverlays[i].field_8;
             v10.uScreenSpaceY = pOtherOverlayList->pOverlays[i].field_A;
-            v10._screenspace_x_scaler_packedfloat = v13;
-            v10._screenspace_y_scaler_packedfloat = v13;
+            v10._screenspace_x_scaler_packedfloat = fixpoint_mul(v11, pFrame->scale);
+            v10._screenspace_y_scaler_packedfloat = fixpoint_mul(v11, pFrame->scale);
             v10.pPalette = PaletteManager::Get_Dark_or_Red_LUT(pFrame->uPaletteIndex, 0, 1);
             v8 = pOtherOverlayList->pOverlays[i].field_2;
             v10.sZValue = 0;
             v10.uFlags = 0;
-            v9 = pOverlayList->pOverlays[v8].uOverlayType;
-            if ( !v9 || v9 == 2 )
-              v10.uScreenSpaceY += pSprites_LOD->pSpriteHeaders[pFrame->pHwSpriteIDs[0]].uHeight >> 1;
+            //v9 = pOverlayList->pOverlays[v8].uOverlayType;
+            if ( !pOverlayList->pOverlays[v8].uOverlayType || pOverlayList->pOverlays[v8].uOverlayType == 2 )
+              v10.uScreenSpaceY += pSprites_LOD->pSpriteHeaders[pFrame->pHwSpriteIDs[0]].uHeight / 2;
             result = pSprites_LOD->pSpriteHeaders[pFrame->pHwSpriteIDs[0]]._4AD2D1(&v10, 0);
             ++v12;
             if ( v12 == 5 )
--- a/mm7_5.cpp	Thu Feb 06 00:38:03 2014 +0600
+++ b/mm7_5.cpp	Thu Feb 06 17:20:12 2014 +0600
@@ -14,6 +14,7 @@
 #include "Lights.h"
 #include "Level/Decoration.h"
 
+
 //----- (004356FF) --------------------------------------------------------
 void back_to_game()
 {
@@ -286,9 +287,9 @@
             a2a = 10;
           if ( !MonsterStats::BelongsToSupertype(pActors[uActorID].pMonsterInfo.uID, MONSTER_SUPERTYPE_TREANT) )
           {
-            pVelocity->x = (unsigned __int64)(a2a * (signed __int64)pVelocity->x) >> 16;
-            pVelocity->y = (unsigned __int64)(a2a * (signed __int64)pVelocity->y) >> 16;
-            pVelocity->z = (unsigned __int64)(a2a * (signed __int64)pVelocity->z) >> 16;
+            pVelocity->x = fixpoint_mul(a2a, pVelocity->x);
+            pVelocity->y = fixpoint_mul(a2a, pVelocity->y);
+            pVelocity->z = fixpoint_mul(a2a, pVelocity->z);
             pActors[uActorID].vVelocity.x = 50 * LOWORD(pVelocity->x);
             pActors[uActorID].vVelocity.y = 50 * LOWORD(pVelocity->y);
             pActors[uActorID].vVelocity.z = 50 * LOWORD(pVelocity->z);
@@ -373,9 +374,9 @@
             v18 = 10;
           if ( !MonsterStats::BelongsToSupertype(pActors[actor_id].pMonsterInfo.uID, MONSTER_SUPERTYPE_TREANT) )
           {
-            pVelocity->x = (unsigned __int64)(v18 * (signed __int64)pVelocity->x) >> 16;
-            pVelocity->y = (unsigned __int64)(v18 * (signed __int64)pVelocity->y) >> 16;
-            pVelocity->z = (unsigned __int64)(v18 * (signed __int64)pVelocity->z) >> 16;
+            pVelocity->x = fixpoint_mul(v18, pVelocity->x);
+            pVelocity->y = fixpoint_mul(v18, pVelocity->y);
+            pVelocity->z = fixpoint_mul(v18, pVelocity->z);
             pActors[actor_id].vVelocity.x = 50 * LOWORD(pVelocity->x);
             pActors[actor_id].vVelocity.y = 50 * LOWORD(pVelocity->y);
             pActors[actor_id].vVelocity.z = 50 * LOWORD(pVelocity->z);
--- a/stru6.cpp	Thu Feb 06 00:38:03 2014 +0600
+++ b/stru6.cpp	Thu Feb 06 17:20:12 2014 +0600
@@ -477,12 +477,7 @@
 //----- (004A7A27) --------------------------------------------------------
 bool stru6::AddMobileLight(SpriteObject *a1, unsigned int uDiffuse, int uRadius)
 {
-  return pMobileLightsStack->AddLight(
-           a1->vPosition.x,
-           a1->vPosition.y,
-           a1->vPosition.z,
-           a1->uSectorID,
-           uRadius,
+  return pMobileLightsStack->AddLight(a1->vPosition.x, a1->vPosition.y, a1->vPosition.z, a1->uSectorID, uRadius,
            (uDiffuse & 0x00FF0000) >> 16,
            (uDiffuse & 0x0000FF00) >> 8,
            uDiffuse & 0x000000FF,