annotate test/testintersections.c @ 2994:7563b99e9a49

Date: Sat, 3 Jan 2009 22:11:18 -0500 From: "Donny Viszneki" Subject: Re: [SDL] Want to help with SDL 1.3? >> > For example, here's a good quick project for someone from the TODO list: >> > * Add diagonal line clipping to SDL_IntersectRectAndLine() Just wanted to point out that the patch is available at http://codebad.com/rect-line-ix.patch I hereby grant Sam Lantinga an irrevocable non-exclusive distribution license to this patch to do with as he wishes.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 04 Jan 2009 19:33:21 +0000
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children e4f025078c1c
rev   line source
2994
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1
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2 /* Simple program: draw as many random objects on the screen as possible */
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3
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4 #include <stdlib.h>
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5 #include <stdio.h>
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6 #include <time.h>
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7
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8 #include "common.h"
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9
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10 #define SWAP(typ,a,b) do{typ t=a;a=b;b=t;}while(0)
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11 #define NUM_OBJECTS 100
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12
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13 static CommonState *state;
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14 static int num_objects;
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15 static SDL_bool cycle_color;
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16 static SDL_bool cycle_alpha;
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17 static int cycle_direction = 1;
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18 static int current_alpha = 255;
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19 static int current_color = 255;
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20 static SDL_BlendMode blendMode = SDL_BLENDMODE_NONE;
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21
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22 void
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23 DrawPoints(SDL_WindowID window)
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24 {
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25 int i;
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26 int x, y;
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27 int window_w, window_h;
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28
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29 /* Query the sizes */
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30 SDL_GetWindowSize(window, &window_w, &window_h);
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31
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32 SDL_SetRenderDrawBlendMode(blendMode);
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33 for (i = 0; i < num_objects * 4; ++i) {
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34 /* Cycle the color and alpha, if desired */
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35 if (cycle_color) {
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36 current_color += cycle_direction;
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37 if (current_color < 0) {
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38 current_color = 0;
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39 cycle_direction = -cycle_direction;
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40 }
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41 if (current_color > 255) {
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42 current_color = 255;
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43 cycle_direction = -cycle_direction;
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44 }
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45 }
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46 if (cycle_alpha) {
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47 current_alpha += cycle_direction;
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48 if (current_alpha < 0) {
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49 current_alpha = 0;
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50 cycle_direction = -cycle_direction;
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51 }
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52 if (current_alpha > 255) {
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53 current_alpha = 255;
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54 cycle_direction = -cycle_direction;
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55 }
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56 }
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57 SDL_SetRenderDrawColor(255, (Uint8) current_color,
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58 (Uint8) current_color, (Uint8) current_alpha);
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59
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60 x = rand() % window_w;
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61 y = rand() % window_h;
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62 SDL_RenderPoint(x, y);
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63 }
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64 SDL_SetRenderDrawBlendMode(SDL_BLENDMODE_NONE);
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65 }
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66
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67 #define MAX_LINES 16
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68 int num_lines = 0;
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69 SDL_Rect lines[MAX_LINES];
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70 static int add_line(int x1, int y1, int x2, int y2) {
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71 if (num_lines >= MAX_LINES) return 0;
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72 if ((x1 == x2) && (y1 == y2)) return 0;
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73
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74 printf("adding line (%d, %d), (%d, %d)\n", x1, y1, x2, y2);
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75 lines[num_lines].x = x1;
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76 lines[num_lines].y = y1;
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77 lines[num_lines].w = x2;
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78 lines[num_lines].h = y2;
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79
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80 return ++num_lines;
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81 }
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82
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83
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84 void
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85 DrawLines(SDL_WindowID window)
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86 {
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87 int i;
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88 int x1, y1, x2, y2;
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89 int window_w, window_h;
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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 SDL_SetRenderDrawBlendMode(blendMode);
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95 for (i = 0; i < num_lines; ++i) {
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96 SDL_SetRenderDrawColor(255, 255, 255, 255);
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97
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98 if (i == -1) {
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99 SDL_RenderLine(0, 0, window_w - 1, window_h - 1);
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100 SDL_RenderLine(0, window_h - 1, window_w - 1, 0);
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101 SDL_RenderLine(0, window_h / 2, window_w - 1, window_h / 2);
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102 SDL_RenderLine(window_w / 2, 0, window_w / 2, window_h - 1);
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103 } else {
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104 SDL_RenderLine(lines[i].x, lines[i].y, lines[i].w, lines[i].h);
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105 }
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106 }
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107 SDL_SetRenderDrawBlendMode(SDL_BLENDMODE_NONE);
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108 }
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109
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110 #define MAX_RECTS 16
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111 int num_rects = 0;
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112 SDL_Rect rects[MAX_RECTS];
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113 static int add_rect(int x1, int y1, int x2, int y2) {
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114 if (num_rects >= MAX_RECTS) return 0;
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115 if ((x1 == x2) || (y1 == y2)) return 0;
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116
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117 if (x1 > x2) SWAP(int, x1, x2);
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118 if (y1 > y2) SWAP(int, y1, y2);
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119
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120 printf("adding rect (%d, %d), (%d, %d) [%dx%d]\n", x1, y1, x2, y2, x2-x1, y2-y1);
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121
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122 rects[num_rects].x = x1;
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123 rects[num_rects].y = y1;
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124 rects[num_rects].w = x2 - x1;
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125 rects[num_rects].h = y2 - y1;
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126
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127 return ++num_rects;
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128 }
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129
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
130 static void
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
131 DrawRects(SDL_WindowID window)
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
132 {
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
133 int i;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
134 int window_w, window_h;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
135
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
136 /* Query the sizes */
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
137 SDL_GetWindowSize(window, &window_w, &window_h);
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
138
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
139 SDL_SetRenderDrawBlendMode(SDL_BLENDMODE_NONE);
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
140 for (i = 0; i < num_rects; ++i) {
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
141 SDL_SetRenderDrawColor(255, 127, 0, 255);
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
142 SDL_RenderFill(&rects[i]);
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
143 }
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
144 SDL_SetRenderDrawBlendMode(SDL_BLENDMODE_NONE);
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
145 }
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
146
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
147 static void
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
148 DrawRectLineIntersections(SDL_WindowID window)
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
149 {
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
150 int i, j, window_w, window_h;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
151
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
152 /* Query the sizes */
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
153 SDL_GetWindowSize(window, &window_w, &window_h);
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
154
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
155 SDL_SetRenderDrawBlendMode(SDL_BLENDMODE_NONE);
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
156
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
157 for (i = 0; i < num_rects; i++)
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
158 for (j = 0; j < num_lines; j++) {
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
159 int x1, y1, x2, y2;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
160 SDL_Rect r;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
161
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
162 r = rects[i];
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
163 x1 = lines[j].x;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
164 y1 = lines[j].y;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
165 x2 = lines[j].w;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
166 y2 = lines[j].h;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
167
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
168 if (SDL_IntersectRectAndLine(&r, &x1, &y1, &x2, &y2)) {
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
169 SDL_SetRenderDrawColor(0, 255, 55, 255);
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
170 SDL_RenderLine(x1, y1, x2, y2);
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
171 }
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
172 }
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
173
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
174 SDL_SetRenderDrawBlendMode(SDL_BLENDMODE_NONE);
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
175 }
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
176
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
177 static void
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
178 DrawRectRectIntersections(SDL_WindowID window)
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
179 {
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
180 int i, j;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
181
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
182 SDL_SetRenderDrawBlendMode(SDL_BLENDMODE_NONE);
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
183
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
184 for (i = 0; i < num_rects; i++)
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
185 for (j = i+1; j < num_rects; j++) {
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
186 SDL_Rect r;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
187 if (SDL_IntersectRect(&rects[i], &rects[j], &r)) {
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
188 SDL_SetRenderDrawColor(255, 200, 0, 255);
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
189 SDL_RenderFill(&r);
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
190 }
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
191 }
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
192
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
193 SDL_SetRenderDrawBlendMode(SDL_BLENDMODE_NONE);
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
194 }
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
195
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
196 int
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
197 main(int argc, char *argv[])
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
198 {
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
199 int mouse_begin_x = -1, mouse_begin_y = -1;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
200 int i, done;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
201 SDL_Event event;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
202 Uint32 then, now, frames;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
203
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
204 /* Initialize parameters */
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
205 num_objects = NUM_OBJECTS;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
206
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
207 /* Initialize test framework */
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
208 state = CommonCreateState(argv, SDL_INIT_VIDEO);
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
209 if (!state) {
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
210 return 1;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
211 }
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
212 for (i = 1; i < argc;) {
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
213 int consumed;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
214
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
215 consumed = CommonArg(state, i);
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
216 if (consumed == 0) {
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
217 consumed = -1;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
218 if (SDL_strcasecmp(argv[i], "--blend") == 0) {
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
219 if (argv[i + 1]) {
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
220 if (SDL_strcasecmp(argv[i + 1], "none") == 0) {
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
221 blendMode = SDL_BLENDMODE_NONE;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
222 consumed = 2;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
223 } else if (SDL_strcasecmp(argv[i + 1], "mask") == 0) {
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
224 blendMode = SDL_BLENDMODE_MASK;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
225 consumed = 2;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
226 } else if (SDL_strcasecmp(argv[i + 1], "blend") == 0) {
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
227 blendMode = SDL_BLENDMODE_BLEND;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
228 consumed = 2;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
229 } else if (SDL_strcasecmp(argv[i + 1], "add") == 0) {
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
230 blendMode = SDL_BLENDMODE_ADD;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
231 consumed = 2;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
232 } else if (SDL_strcasecmp(argv[i + 1], "mod") == 0) {
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
233 blendMode = SDL_BLENDMODE_MOD;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
234 consumed = 2;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
235 }
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
236 }
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
237 } else if (SDL_strcasecmp(argv[i], "--cyclecolor") == 0) {
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
238 cycle_color = SDL_TRUE;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
239 consumed = 1;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
240 } else if (SDL_strcasecmp(argv[i], "--cyclealpha") == 0) {
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
241 cycle_alpha = SDL_TRUE;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
242 consumed = 1;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
243 } else if (SDL_isdigit(*argv[i])) {
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
244 num_objects = SDL_atoi(argv[i]);
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
245 consumed = 1;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
246 }
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
247 }
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
248 if (consumed < 0) {
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
249 fprintf(stderr,
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
250 "Usage: %s %s [--blend none|mask|blend|add|mod] [--cyclecolor] [--cyclealpha]\n",
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
251 argv[0], CommonUsage(state));
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
252 return 1;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
253 }
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
254 i += consumed;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
255 }
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
256 if (!CommonInit(state)) {
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
257 return 2;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
258 }
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
259
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
260 /* Create the windows and initialize the renderers */
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
261 for (i = 0; i < state->num_windows; ++i) {
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
262 SDL_SelectRenderer(state->windows[i]);
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
263 SDL_SetRenderDrawColor(0xA0, 0xA0, 0xA0, 0xFF);
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
264 SDL_RenderFill(NULL);
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
265 }
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
266
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
267 srand(time(NULL));
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
268
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
269 /* Main render loop */
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
270 frames = 0;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
271 then = SDL_GetTicks();
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
272 done = 0;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
273 while (!done) {
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
274 /* Check for events */
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
275 ++frames;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
276 while (SDL_PollEvent(&event)) {
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
277 CommonEvent(state, &event, &done);
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
278 switch (event.type) {
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
279 case SDL_MOUSEBUTTONDOWN:
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
280 if (event.button.which == 0) {
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
281 mouse_begin_x = event.button.x;
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Sam Lantinga <slouken@libsdl.org>
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diff changeset
282 mouse_begin_y = event.button.y;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
283 }
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
284 break;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
285 case SDL_MOUSEBUTTONUP:
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
286 if (event.button.which == 0) {
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
287 if (event.button.button == 3)
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Sam Lantinga <slouken@libsdl.org>
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diff changeset
288 add_line(mouse_begin_x, mouse_begin_y, event.button.x, event.button.y);
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Sam Lantinga <slouken@libsdl.org>
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diff changeset
289 if (event.button.button == 1)
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
290 add_rect(mouse_begin_x, mouse_begin_y, event.button.x, event.button.y);
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
291 }
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
292 break;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
293 case SDL_KEYDOWN:
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
294 switch (event.key.keysym.sym) {
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
295 case 'l':
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
296 if (event.key.keysym.mod & KMOD_SHIFT) num_lines = 0;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
297 else add_line(rand()%640, rand()%480, rand()%640, rand()%480);
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
298 break;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
299 case 'r':
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
300 if (event.key.keysym.mod & KMOD_SHIFT) num_rects = 0;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
301 else add_rect(rand()%640, rand()%480, rand()%640, rand()%480);
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
302 break;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
303 }
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
304 break;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
305 case SDL_WINDOWEVENT:
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
306 switch (event.window.event) {
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
307 case SDL_WINDOWEVENT_EXPOSED:
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
308 SDL_SelectRenderer(event.window.windowID);
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
309 SDL_SetRenderDrawColor(0xA0, 0xA0, 0xA0, 0xFF);
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
310 SDL_RenderFill(NULL);
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
311 break;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
312 }
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
313 break;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
314 default:
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
315 break;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
316 }
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
317 }
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
318 for (i = 0; i < state->num_windows; ++i) {
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
319 SDL_SelectRenderer(state->windows[i]);
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
320 SDL_SetRenderDrawColor(0xA0, 0xA0, 0xA0, 0xFF);
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
321 SDL_RenderFill(NULL);
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
322
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
323 DrawRects(state->windows[i]);
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
324 DrawPoints(state->windows[i]);
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
325 DrawRectRectIntersections(state->windows[i]);
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
326 DrawLines(state->windows[i]);
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
327 DrawRectLineIntersections(state->windows[i]);
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
328
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
329 SDL_RenderPresent();
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
330 }
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
331 }
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
332
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
333 /* Print out some timing information */
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
334 now = SDL_GetTicks();
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
335 if (now > then) {
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
336 double fps = ((double) frames * 1000) / (now - then);
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
337 printf("%2.2f frames per second\n", fps);
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
338 }
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
339 return 0;
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
340 }
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
341
7563b99e9a49 Date: Sat, 3 Jan 2009 22:11:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
342 /* vi: set ts=4 sw=4 expandtab: */