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annotate test/nds-test-progs/sprite2/source/testsprite2.c @ 2692:cd8978f47849 gsoc2008_nds

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Minor cleanups in renderer.
author Darren Alton <dalton@stevens.edu>
date Sat, 16 Aug 2008 11:16:08 +0000
parents e9f27fe4f2a1
children c1c7cb1b5a47
rev   line source
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1 /* Simple program: Move N sprites around on the screen as fast as possible */
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2
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3 #include <stdlib.h>
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4 #include <stdio.h>
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5 #include <time.h>
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6 #include <nds.h>
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7 #include <fat.h>
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8 #include "common.h"
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9
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10 #define NUM_SPRITES 100
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11 #define MAX_SPEED 1
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12
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13 static CommonState *state;
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14 static int num_sprites;
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15 static SDL_TextureID *sprites;
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16 static SDL_bool cycle_color;
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17 static SDL_bool cycle_alpha;
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18 static int cycle_direction = 1;
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19 static int current_alpha = 0;
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20 static int current_color = 0;
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21 static SDL_Rect *positions;
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22 static SDL_Rect *velocities;
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23 static int sprite_w, sprite_h;
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24 static SDL_TextureBlendMode blendMode = SDL_TEXTUREBLENDMODE_MASK;
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25 static SDL_TextureScaleMode scaleMode = SDL_TEXTURESCALEMODE_NONE;
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26
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27 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
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28 static void
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29 quit(int rc)
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30 {
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31 if (sprites) {
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32 SDL_free(sprites);
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33 }
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34 if (positions) {
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35 SDL_free(positions);
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36 }
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37 if (velocities) {
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38 SDL_free(velocities);
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39 }
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40 CommonQuit(state);
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41 exit(rc);
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42 }
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43
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44 int
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45 LoadSprite(char *file)
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46 {
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47 int i;
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48 SDL_Surface *temp;
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49
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50 /* Load the sprite image */
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51 temp = SDL_LoadBMP(file);
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52 if (temp == NULL) {
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53 fprintf(stderr, "Couldn't load %s: %s", file, SDL_GetError());
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54 return (-1);
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55 }
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56 sprite_w = temp->w;
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57 sprite_h = temp->h;
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58
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59 /* Set transparent pixel as the pixel at (0,0) */
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60 if (temp->format->palette) {
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61 SDL_SetColorKey(temp, SDL_SRCCOLORKEY, *(Uint8 *) temp->pixels);
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62 }
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63
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64 /* Create textures from the image */
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65 for (i = 0; i < state->num_windows; ++i) {
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66 SDL_SelectRenderer(state->windows[i]);
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67 sprites[i] = SDL_CreateTextureFromSurface(0, temp);
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68 if (!sprites[i]) {
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69 fprintf(stderr, "Couldn't create texture: %s\n", SDL_GetError());
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70 SDL_FreeSurface(temp);
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71 return (-1);
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72 }
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73 SDL_SetTextureBlendMode(sprites[i], blendMode);
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74 SDL_SetTextureScaleMode(sprites[i], scaleMode);
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75 }
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76 SDL_FreeSurface(temp);
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77
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78 /* We're ready to roll. :) */
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79 return (0);
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80 }
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81
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82 void
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83 MoveSprites(SDL_WindowID window, SDL_TextureID sprite)
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84 {
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85 int i, n;
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86 int window_w, window_h;
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87 SDL_Rect area, *position, *velocity;
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88
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89 SDL_SelectRenderer(window);
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90
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91 /* Query the sizes */
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92 SDL_GetWindowSize(window, &window_w, &window_h);
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93
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94 /* Cycle the color and alpha, if desired */
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95 if (cycle_color) {
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96 current_color += cycle_direction;
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97 if (current_color < 0) {
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98 current_color = 0;
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99 cycle_direction = -cycle_direction;
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100 }
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101 if (current_color > 255) {
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102 current_color = 255;
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103 cycle_direction = -cycle_direction;
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104 }
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105 SDL_SetTextureColorMod(sprite, 255, (Uint8) current_color,
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106 (Uint8) current_color);
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107 }
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108 if (cycle_alpha) {
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109 current_alpha += cycle_direction;
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110 if (current_alpha < 0) {
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111 current_alpha = 0;
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112 cycle_direction = -cycle_direction;
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113 }
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114 if (current_alpha > 255) {
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115 current_alpha = 255;
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116 cycle_direction = -cycle_direction;
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117 }
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118 SDL_SetTextureAlphaMod(sprite, (Uint8) current_alpha);
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119 }
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120
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121 /* Move the sprite, bounce at the wall, and draw */
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122 n = 0;
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123 SDL_RenderFill(0xA0, 0xA0, 0xA0, 0xFF, NULL);
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124 for (i = 0; i < num_sprites; ++i) {
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125 position = &positions[i];
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126 velocity = &velocities[i];
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127 position->x += velocity->x;
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128 if ((position->x < 0) || (position->x >= (window_w - sprite_w))) {
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129 velocity->x = -velocity->x;
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130 position->x += velocity->x;
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131 }
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132 position->y += velocity->y;
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133 if ((position->y < 0) || (position->y >= (window_h - sprite_w))) {
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134 velocity->y = -velocity->y;
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135 position->y += velocity->y;
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136 }
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137
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parents:
diff changeset
138 /* Blit the sprite onto the screen */
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
139 SDL_RenderCopy(sprite, NULL, position);
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
140 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
141
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
142 /* Update the screen! */
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
143 SDL_RenderPresent();
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
144 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
145
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
146 int
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
147 main(int argc, char *argv[])
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
148 {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
149 int i, done;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
150 SDL_Event event;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
151 Uint32 then, now, frames;
2692
cd8978f47849 Minor cleanups in renderer.
Darren Alton <dalton@stevens.edu>
parents: 2686
diff changeset
152 fatInitDefault();
2686
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
153 /* Initialize parameters */
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
154 num_sprites = NUM_SPRITES;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
155
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
156 /* Initialize test framework */
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
157 state = CommonCreateState(argv, SDL_INIT_VIDEO);
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
158 if (!state) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
159 return 1;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
160 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
161 for (i = 1; i < argc;) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
162 int consumed;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
163
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
164 consumed = CommonArg(state, i);
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
165 if (consumed == 0) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
166 consumed = -1;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
167 if (SDL_strcasecmp(argv[i], "--blend") == 0) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
168 if (argv[i + 1]) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
169 if (SDL_strcasecmp(argv[i + 1], "none") == 0) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
170 blendMode = SDL_TEXTUREBLENDMODE_NONE;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
171 consumed = 2;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
172 } else if (SDL_strcasecmp(argv[i + 1], "mask") == 0) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
173 blendMode = SDL_TEXTUREBLENDMODE_MASK;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
174 consumed = 2;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
175 } else if (SDL_strcasecmp(argv[i + 1], "blend") == 0) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
176 blendMode = SDL_TEXTUREBLENDMODE_BLEND;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
177 consumed = 2;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
178 } else if (SDL_strcasecmp(argv[i + 1], "add") == 0) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
179 blendMode = SDL_TEXTUREBLENDMODE_ADD;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
180 consumed = 2;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
181 } else if (SDL_strcasecmp(argv[i + 1], "mod") == 0) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
182 blendMode = SDL_TEXTUREBLENDMODE_MOD;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
183 consumed = 2;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
184 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
185 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
186 } else if (SDL_strcasecmp(argv[i], "--scale") == 0) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
187 if (argv[i + 1]) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
188 if (SDL_strcasecmp(argv[i + 1], "none") == 0) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
189 scaleMode = SDL_TEXTURESCALEMODE_NONE;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
190 consumed = 2;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
191 } else if (SDL_strcasecmp(argv[i + 1], "fast") == 0) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
192 scaleMode = SDL_TEXTURESCALEMODE_FAST;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
193 consumed = 2;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
194 } else if (SDL_strcasecmp(argv[i + 1], "slow") == 0) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
195 scaleMode = SDL_TEXTURESCALEMODE_SLOW;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
196 consumed = 2;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
197 } else if (SDL_strcasecmp(argv[i + 1], "best") == 0) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
198 scaleMode = SDL_TEXTURESCALEMODE_BEST;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
199 consumed = 2;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
200 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
201 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
202 } else if (SDL_strcasecmp(argv[i], "--cyclecolor") == 0) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
203 cycle_color = SDL_TRUE;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
204 consumed = 1;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
205 } else if (SDL_strcasecmp(argv[i], "--cyclealpha") == 0) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
206 cycle_alpha = SDL_TRUE;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
207 consumed = 1;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
208 } else if (SDL_isdigit(*argv[i])) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
209 num_sprites = SDL_atoi(argv[i]);
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
210 consumed = 1;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
211 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
212 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
213 if (consumed < 0) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
214 fprintf(stderr,
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
215 "Usage: %s %s [--blend none|mask|blend|add|mod] [--scale none|fast|slow|best] [--cyclecolor] [--cyclealpha]\n",
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
216 argv[0], CommonUsage(state));
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
217 quit(1);
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
218 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
219 i += consumed;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
220 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
221 if (!CommonInit(state)) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
222 quit(2);
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
223 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
224
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
225 /* Create the windows, initialize the renderers, and load the textures */
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
226 sprites =
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
227 (SDL_TextureID *) SDL_malloc(state->num_windows * sizeof(*sprites));
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
228 if (!sprites) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
229 fprintf(stderr, "Out of memory!\n");
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
230 quit(2);
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
231 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
232 for (i = 0; i < state->num_windows; ++i) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
233 SDL_SelectRenderer(state->windows[i]);
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
234 SDL_RenderFill(0xA0, 0xA0, 0xA0, 0xFF, NULL);
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
235 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
236 if (LoadSprite("icon.bmp") < 0) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
237 quit(2);
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
238 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
239
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
240 /* Allocate memory for the sprite info */
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
241 positions = (SDL_Rect *) SDL_malloc(num_sprites * sizeof(SDL_Rect));
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
242 velocities = (SDL_Rect *) SDL_malloc(num_sprites * sizeof(SDL_Rect));
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
243 if (!positions || !velocities) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
244 fprintf(stderr, "Out of memory!\n");
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
245 quit(2);
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
246 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
247 srand(time(NULL));
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
248 if (scaleMode != SDL_TEXTURESCALEMODE_NONE) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
249 sprite_w += sprite_w / 2;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
250 sprite_h += sprite_h / 2;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
251 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
252 for (i = 0; i < num_sprites; ++i) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
253 positions[i].x = rand() % (state->window_w - sprite_w);
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
254 positions[i].y = rand() % (state->window_h - sprite_h);
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
255 positions[i].w = sprite_w;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
256 positions[i].h = sprite_h;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
257 velocities[i].x = 0;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
258 velocities[i].y = 0;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
259 while (!velocities[i].x && !velocities[i].y) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
260 velocities[i].x = (rand() % (MAX_SPEED * 2 + 1)) - MAX_SPEED;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
261 velocities[i].y = (rand() % (MAX_SPEED * 2 + 1)) - MAX_SPEED;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
262 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
263 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
264
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
265 /* Main render loop */
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
266 frames = 0;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
267 then = SDL_GetTicks();
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
268 done = 0;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
269 while (!done) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
270 /* Check for events */
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
271 ++frames;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
272 while (SDL_PollEvent(&event)) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
273 CommonEvent(state, &event, &done);
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274 switch (event.type) {
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275 case SDL_WINDOWEVENT:
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276 switch (event.window.event) {
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277 case SDL_WINDOWEVENT_EXPOSED:
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278 SDL_SelectRenderer(event.window.windowID);
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279 SDL_RenderFill(0xA0, 0xA0, 0xA0, 0xFF, NULL);
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280 break;
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281 }
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282 break;
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283 default:
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284 break;
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285 }
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286 }
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287 for (i = 0; i < state->num_windows; ++i) {
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288 MoveSprites(state->windows[i], sprites[i]);
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289 }
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290 }
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291
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292 /* Print out some timing information */
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293 now = SDL_GetTicks();
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294 if (now > then) {
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295 printf("%2.2f frames per second\n",
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296 ((double) frames * 1000) / (now - then));
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297 }
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298
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299 quit(0);
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300 return 0;
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301 }
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302
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303 /* vi: set ts=4 sw=4 expandtab: */