SDL  2.0
testintersections.c File Reference
#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include "SDL_test_common.h"
+ Include dependency graph for testintersections.c:

Go to the source code of this file.

Macros

#define SWAP(typ, a, b)   do{typ t=a;a=b;b=t;}while(0)
 
#define NUM_OBJECTS   100
 
#define MAX_LINES   16
 
#define MAX_RECTS   16
 

Functions

void DrawPoints (SDL_Renderer *renderer)
 
static int add_line (int x1, int y1, int x2, int y2)
 
void DrawLines (SDL_Renderer *renderer)
 
static int add_rect (int x1, int y1, int x2, int y2)
 
static void DrawRects (SDL_Renderer *renderer)
 
static void DrawRectLineIntersections (SDL_Renderer *renderer)
 
static void DrawRectRectIntersections (SDL_Renderer *renderer)
 
void loop ()
 
int main (int argc, char *argv[])
 

Variables

static SDLTest_CommonStatestate
 
static int num_objects
 
static SDL_bool cycle_color
 
static SDL_bool cycle_alpha
 
static int cycle_direction = 1
 
static int current_alpha = 255
 
static int current_color = 255
 
static SDL_BlendMode blendMode = SDL_BLENDMODE_NONE
 
int mouse_begin_x = -1
 
int mouse_begin_y = -1
 
int done
 
int num_lines = 0
 
SDL_Rect lines [MAX_LINES]
 
int num_rects = 0
 
SDL_Rect rects [MAX_RECTS]
 

Macro Definition Documentation

◆ MAX_LINES

#define MAX_LINES   16

Definition at line 83 of file testintersections.c.

Referenced by add_line().

◆ MAX_RECTS

#define MAX_RECTS   16

Definition at line 127 of file testintersections.c.

Referenced by add_rect().

◆ NUM_OBJECTS

#define NUM_OBJECTS   100

Definition at line 26 of file testintersections.c.

Referenced by main().

◆ SWAP

#define SWAP (   typ,
  a,
  b 
)    do{typ t=a;a=b;b=t;}while(0)

Definition at line 25 of file testintersections.c.

Referenced by add_rect().

Function Documentation

◆ add_line()

static int add_line ( int  x1,
int  y1,
int  x2,
int  y2 
)
static

Definition at line 87 of file testintersections.c.

References SDL_Rect::h, MAX_LINES, num_lines, SDL_Log, SDL_Rect::w, SDL_Rect::x, and SDL_Rect::y.

Referenced by loop().

88 {
89  if (num_lines >= MAX_LINES)
90  return 0;
91  if ((x1 == x2) && (y1 == y2))
92  return 0;
93 
94  SDL_Log("adding line (%d, %d), (%d, %d)\n", x1, y1, x2, y2);
95  lines[num_lines].x = x1;
96  lines[num_lines].y = y1;
97  lines[num_lines].w = x2;
98  lines[num_lines].h = y2;
99 
100  return ++num_lines;
101 }
GLuint GLfloat GLfloat GLfloat x1
int num_lines
GLfixed GLfixed GLfixed y2
GLfixed GLfixed x2
#define MAX_LINES
GLfixed y1
#define SDL_Log
SDL_Rect lines[MAX_LINES]
int x
Definition: SDL_rect.h:66
int w
Definition: SDL_rect.h:67
int h
Definition: SDL_rect.h:67
int y
Definition: SDL_rect.h:66

◆ add_rect()

static int add_rect ( int  x1,
int  y1,
int  x2,
int  y2 
)
static

Definition at line 131 of file testintersections.c.

References SDL_Rect::h, MAX_RECTS, num_rects, SDL_Log, SWAP, SDL_Rect::w, SDL_Rect::x, and SDL_Rect::y.

Referenced by loop().

132 {
133  if (num_rects >= MAX_RECTS)
134  return 0;
135  if ((x1 == x2) || (y1 == y2))
136  return 0;
137 
138  if (x1 > x2)
139  SWAP(int, x1, x2);
140  if (y1 > y2)
141  SWAP(int, y1, y2);
142 
143  SDL_Log("adding rect (%d, %d), (%d, %d) [%dx%d]\n", x1, y1, x2, y2,
144  x2 - x1, y2 - y1);
145 
146  rects[num_rects].x = x1;
147  rects[num_rects].y = y1;
148  rects[num_rects].w = x2 - x1;
149  rects[num_rects].h = y2 - y1;
150 
151  return ++num_rects;
152 }
GLuint GLfloat GLfloat GLfloat x1
GLfixed GLfixed GLfixed y2
GLfixed GLfixed x2
GLfixed y1
#define SDL_Log
int num_rects
#define SWAP(typ, a, b)
#define MAX_RECTS
EGLSurface EGLint * rects
Definition: eglext.h:282

◆ DrawLines()

void DrawLines ( SDL_Renderer renderer)

Definition at line 105 of file testintersections.c.

References SDL_Rect::h, i, num_lines, SDL_RenderDrawLine, SDL_RenderGetViewport, SDL_SetRenderDrawColor, viewport, and SDL_Rect::w.

Referenced by loop().

106 {
107  int i;
109 
110  /* Query the sizes */
111  SDL_RenderGetViewport(renderer, &viewport);
112 
113  SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);
114 
115  for (i = 0; i < num_lines; ++i) {
116  if (i == -1) {
117  SDL_RenderDrawLine(renderer, 0, 0, viewport.w - 1, viewport.h - 1);
118  SDL_RenderDrawLine(renderer, 0, viewport.h - 1, viewport.w - 1, 0);
119  SDL_RenderDrawLine(renderer, 0, viewport.h / 2, viewport.w - 1, viewport.h / 2);
120  SDL_RenderDrawLine(renderer, viewport.w / 2, 0, viewport.w / 2, viewport.h - 1);
121  } else {
122  SDL_RenderDrawLine(renderer, lines[i].x, lines[i].y, lines[i].w, lines[i].h);
123  }
124  }
125 }
GLint GLint GLint GLint GLint x
Definition: SDL_opengl.h:1574
int num_lines
GLfloat GLfloat GLfloat GLfloat h
#define SDL_RenderGetViewport
GLubyte GLubyte GLubyte GLubyte w
SDL_Rect lines[MAX_LINES]
GLint GLint GLint GLint GLint GLint y
Definition: SDL_opengl.h:1574
int w
Definition: SDL_rect.h:67
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
int h
Definition: SDL_rect.h:67
SDL_Rect viewport
Definition: testviewport.c:28
#define SDL_SetRenderDrawColor
#define SDL_RenderDrawLine
A rectangle, with the origin at the upper left.
Definition: SDL_rect.h:64

◆ DrawPoints()

void DrawPoints ( SDL_Renderer renderer)

Definition at line 41 of file testintersections.c.

References current_alpha, current_color, cycle_alpha, cycle_color, cycle_direction, SDL_Rect::h, i, num_objects, SDL_RenderDrawPoint, SDL_RenderGetViewport, SDL_SetRenderDrawColor, viewport, and SDL_Rect::w.

Referenced by loop().

42 {
43  int i;
44  int x, y;
46 
47  /* Query the sizes */
48  SDL_RenderGetViewport(renderer, &viewport);
49 
50  for (i = 0; i < num_objects * 4; ++i) {
51  /* Cycle the color and alpha, if desired */
52  if (cycle_color) {
54  if (current_color < 0) {
55  current_color = 0;
57  }
58  if (current_color > 255) {
59  current_color = 255;
61  }
62  }
63  if (cycle_alpha) {
65  if (current_alpha < 0) {
66  current_alpha = 0;
68  }
69  if (current_alpha > 255) {
70  current_alpha = 255;
72  }
73  }
75  (Uint8) current_color, (Uint8) current_alpha);
76 
77  x = rand() % viewport.w;
78  y = rand() % viewport.h;
79  SDL_RenderDrawPoint(renderer, x, y);
80  }
81 }
#define SDL_RenderDrawPoint
static SDL_bool cycle_alpha
GLint GLint GLint GLint GLint x
Definition: SDL_opengl.h:1574
static int cycle_direction
uint8_t Uint8
Definition: SDL_stdinc.h:157
#define SDL_RenderGetViewport
GLint GLint GLint GLint GLint GLint y
Definition: SDL_opengl.h:1574
int w
Definition: SDL_rect.h:67
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
int h
Definition: SDL_rect.h:67
SDL_Rect viewport
Definition: testviewport.c:28
static int current_color
static int num_objects
static SDL_bool cycle_color
static int current_alpha
#define SDL_SetRenderDrawColor
A rectangle, with the origin at the upper left.
Definition: SDL_rect.h:64

◆ DrawRectLineIntersections()

static void DrawRectLineIntersections ( SDL_Renderer renderer)
static

Definition at line 162 of file testintersections.c.

References SDL_Rect::h, i, j, num_lines, num_rects, SDL_IntersectRectAndLine, SDL_RenderDrawLine, SDL_SetRenderDrawColor, SDL_Rect::w, SDL_Rect::x, and SDL_Rect::y.

Referenced by loop().

163 {
164  int i, j;
165 
166  SDL_SetRenderDrawColor(renderer, 0, 255, 55, 255);
167 
168  for (i = 0; i < num_rects; i++)
169  for (j = 0; j < num_lines; j++) {
170  int x1, y1, x2, y2;
171  SDL_Rect r;
172 
173  r = rects[i];
174  x1 = lines[j].x;
175  y1 = lines[j].y;
176  x2 = lines[j].w;
177  y2 = lines[j].h;
178 
179  if (SDL_IntersectRectAndLine(&r, &x1, &y1, &x2, &y2)) {
180  SDL_RenderDrawLine(renderer, x1, y1, x2, y2);
181  }
182  }
183 }
GLdouble GLdouble GLdouble r
Definition: SDL_opengl.h:2079
GLuint GLfloat GLfloat GLfloat x1
int num_lines
GLfixed GLfixed GLfixed y2
GLfixed GLfixed x2
GLfixed y1
int num_rects
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int int in j)
Definition: SDL_x11sym.h:50
SDL_Rect lines[MAX_LINES]
int x
Definition: SDL_rect.h:66
int w
Definition: SDL_rect.h:67
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
int h
Definition: SDL_rect.h:67
#define SDL_SetRenderDrawColor
EGLSurface EGLint * rects
Definition: eglext.h:282
#define SDL_IntersectRectAndLine
#define SDL_RenderDrawLine
int y
Definition: SDL_rect.h:66
A rectangle, with the origin at the upper left.
Definition: SDL_rect.h:64

◆ DrawRectRectIntersections()

static void DrawRectRectIntersections ( SDL_Renderer renderer)
static

Definition at line 186 of file testintersections.c.

References i, j, num_rects, SDL_IntersectRect, SDL_RenderFillRect, and SDL_SetRenderDrawColor.

Referenced by loop().

187 {
188  int i, j;
189 
190  SDL_SetRenderDrawColor(renderer, 255, 200, 0, 255);
191 
192  for (i = 0; i < num_rects; i++)
193  for (j = i + 1; j < num_rects; j++) {
194  SDL_Rect r;
195  if (SDL_IntersectRect(&rects[i], &rects[j], &r)) {
196  SDL_RenderFillRect(renderer, &r);
197  }
198  }
199 }
GLdouble GLdouble GLdouble r
Definition: SDL_opengl.h:2079
#define SDL_RenderFillRect
#define SDL_IntersectRect
int num_rects
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int int in j)
Definition: SDL_x11sym.h:50
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
#define SDL_SetRenderDrawColor
EGLSurface EGLint * rects
Definition: eglext.h:282
A rectangle, with the origin at the upper left.
Definition: SDL_rect.h:64

◆ DrawRects()

static void DrawRects ( SDL_Renderer renderer)
static

Definition at line 155 of file testintersections.c.

References num_rects, SDL_RenderFillRects, and SDL_SetRenderDrawColor.

Referenced by loop().

156 {
157  SDL_SetRenderDrawColor(renderer, 255, 127, 0, 255);
158  SDL_RenderFillRects(renderer, rects, num_rects);
159 }
#define SDL_RenderFillRects
int num_rects
#define SDL_SetRenderDrawColor
EGLSurface EGLint * rects
Definition: eglext.h:282

◆ loop()

void loop ( )

Definition at line 202 of file testintersections.c.

References add_line(), add_rect(), SDL_MouseButtonEvent::button, SDL_Event::button, done, DrawLines(), DrawPoints(), DrawRectLineIntersections(), DrawRectRectIntersections(), DrawRects(), i, SDL_Event::key, SDL_KeyboardEvent::keysym, KMOD_SHIFT, SDL_Keysym::mod, mouse_begin_x, mouse_begin_y, NULL, num_lines, num_rects, SDLTest_CommonState::num_windows, renderer, SDLTest_CommonState::renderers, SDL_KEYDOWN, SDL_MOUSEBUTTONDOWN, SDL_MOUSEBUTTONUP, SDL_PollEvent, SDL_RenderClear, SDL_RenderPresent, SDL_SetRenderDrawColor, SDLTest_CommonEvent(), SDL_Keysym::sym, SDL_Event::type, SDLTest_CommonState::windows, SDL_MouseButtonEvent::x, and SDL_MouseButtonEvent::y.

Referenced by main().

203 {
204  int i;
206 
207  /* Check for events */
208  while (SDL_PollEvent(&event)) {
209  SDLTest_CommonEvent(state, &event, &done);
210  switch (event.type) {
211  case SDL_MOUSEBUTTONDOWN:
212  mouse_begin_x = event.button.x;
213  mouse_begin_y = event.button.y;
214  break;
215  case SDL_MOUSEBUTTONUP:
216  if (event.button.button == 3)
218  event.button.y);
219  if (event.button.button == 1)
221  event.button.y);
222  break;
223  case SDL_KEYDOWN:
224  switch (event.key.keysym.sym) {
225  case 'l':
226  if (event.key.keysym.mod & KMOD_SHIFT)
227  num_lines = 0;
228  else
229  add_line(rand() % 640, rand() % 480, rand() % 640,
230  rand() % 480);
231  break;
232  case 'r':
233  if (event.key.keysym.mod & KMOD_SHIFT)
234  num_rects = 0;
235  else
236  add_rect(rand() % 640, rand() % 480, rand() % 640,
237  rand() % 480);
238  break;
239  }
240  break;
241  default:
242  break;
243  }
244  }
245  for (i = 0; i < state->num_windows; ++i) {
247  if (state->windows[i] == NULL)
248  continue;
249  SDL_SetRenderDrawColor(renderer, 0xA0, 0xA0, 0xA0, 0xFF);
250  SDL_RenderClear(renderer);
251 
252  DrawRects(renderer);
253  DrawPoints(renderer);
254  DrawRectRectIntersections(renderer);
255  DrawLines(renderer);
256  DrawRectLineIntersections(renderer);
257 
258  SDL_RenderPresent(renderer);
259  }
260 #ifdef __EMSCRIPTEN__
261  if (done) {
262  emscripten_cancel_main_loop();
263  }
264 #endif
265 }
#define SDL_PollEvent
void DrawLines(SDL_Renderer *renderer)
int done
int mouse_begin_x
int num_lines
static void DrawRects(SDL_Renderer *renderer)
int mouse_begin_y
SDL_Window ** windows
void DrawPoints(SDL_Renderer *renderer)
void SDLTest_CommonEvent(SDLTest_CommonState *state, SDL_Event *event, int *done)
Common event handler for test windows.
int num_rects
#define KMOD_SHIFT
Definition: SDL_keycode.h:343
static SDL_Renderer * renderer
struct _cl_event * event
static void DrawRectRectIntersections(SDL_Renderer *renderer)
static int add_line(int x1, int y1, int x2, int y2)
SDL_Keysym keysym
Definition: SDL_events.h:199
SDL_Renderer ** renderers
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
#define NULL
Definition: begin_code.h:164
Uint16 mod
Definition: SDL_keyboard.h:51
static void DrawRectLineIntersections(SDL_Renderer *renderer)
#define SDL_RenderClear
SDL_KeyboardEvent key
Definition: SDL_events.h:530
SDL_Keycode sym
Definition: SDL_keyboard.h:50
SDL_MouseButtonEvent button
Definition: SDL_events.h:534
General event structure.
Definition: SDL_events.h:525
#define SDL_SetRenderDrawColor
static int add_rect(int x1, int y1, int x2, int y2)
static SDLTest_CommonState * state
#define SDL_RenderPresent
Uint32 type
Definition: SDL_events.h:527

◆ main()

int main ( int  argc,
char *  argv[] 
)

Definition at line 268 of file testintersections.c.

References blendMode, cycle_alpha, cycle_color, done, i, loop(), NULL, NUM_OBJECTS, num_objects, SDLTest_CommonState::num_windows, renderer, SDLTest_CommonState::renderers, SDL_atoi, SDL_BLENDMODE_ADD, SDL_BLENDMODE_BLEND, SDL_BLENDMODE_MOD, SDL_BLENDMODE_NONE, SDL_GetTicks(), SDL_INIT_VIDEO, SDL_isdigit, SDL_Log, SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO, SDL_LogSetPriority, SDL_RenderClear, SDL_SetRenderDrawBlendMode, SDL_SetRenderDrawColor, SDL_strcasecmp, SDL_TRUE, SDLTest_CommonArg(), SDLTest_CommonCreateState(), SDLTest_CommonInit(), SDLTest_CommonQuit(), and SDLTest_CommonUsage().

269 {
270  int i;
271  Uint32 then, now, frames;
272 
273  /* Enable standard application logging */
275 
276  /* Initialize parameters */
278 
279  /* Initialize test framework */
281  if (!state) {
282  return 1;
283  }
284  for (i = 1; i < argc;) {
285  int consumed;
286 
287  consumed = SDLTest_CommonArg(state, i);
288  if (consumed == 0) {
289  consumed = -1;
290  if (SDL_strcasecmp(argv[i], "--blend") == 0) {
291  if (argv[i + 1]) {
292  if (SDL_strcasecmp(argv[i + 1], "none") == 0) {
294  consumed = 2;
295  } else if (SDL_strcasecmp(argv[i + 1], "blend") == 0) {
297  consumed = 2;
298  } else if (SDL_strcasecmp(argv[i + 1], "add") == 0) {
300  consumed = 2;
301  } else if (SDL_strcasecmp(argv[i + 1], "mod") == 0) {
303  consumed = 2;
304  }
305  }
306  } else if (SDL_strcasecmp(argv[i], "--cyclecolor") == 0) {
308  consumed = 1;
309  } else if (SDL_strcasecmp(argv[i], "--cyclealpha") == 0) {
311  consumed = 1;
312  } else if (SDL_isdigit(*argv[i])) {
313  num_objects = SDL_atoi(argv[i]);
314  consumed = 1;
315  }
316  }
317  if (consumed < 0) {
318  SDL_Log("Usage: %s %s [--blend none|blend|add|mod] [--cyclecolor] [--cyclealpha]\n",
319  argv[0], SDLTest_CommonUsage(state));
320  return 1;
321  }
322  i += consumed;
323  }
324  if (!SDLTest_CommonInit(state)) {
325  return 2;
326  }
327 
328  /* Create the windows and initialize the renderers */
329  for (i = 0; i < state->num_windows; ++i) {
332  SDL_SetRenderDrawColor(renderer, 0xA0, 0xA0, 0xA0, 0xFF);
333  SDL_RenderClear(renderer);
334  }
335 
336  srand(time(NULL));
337 
338  /* Main render loop */
339  frames = 0;
340  then = SDL_GetTicks();
341  done = 0;
342 
343 #ifdef __EMSCRIPTEN__
344  emscripten_set_main_loop(loop, 0, 1);
345 #else
346  while (!done) {
347  ++frames;
348  loop();
349  }
350 #endif
351 
353 
354  /* Print out some timing information */
355  now = SDL_GetTicks();
356  if (now > then) {
357  double fps = ((double) frames * 1000) / (now - then);
358  SDL_Log("%2.2f frames per second\n", fps);
359  }
360  return 0;
361 }
static SDL_BlendMode blendMode
static SDL_bool cycle_alpha
EGLSurface EGLnsecsANDROID time
Definition: eglext.h:518
int done
SDLTest_CommonState * SDLTest_CommonCreateState(char **argv, Uint32 flags)
Parse command line parameters and create common state.
#define NUM_OBJECTS
int SDLTest_CommonArg(SDLTest_CommonState *state, int index)
Process one common argument.
#define SDL_SetRenderDrawBlendMode
uint32_t Uint32
Definition: SDL_stdinc.h:181
#define SDL_strcasecmp
SDL_bool SDLTest_CommonInit(SDLTest_CommonState *state)
Open test window.
#define SDL_Log
#define SDL_isdigit
Uint32 SDL_GetTicks(void)
Get the number of milliseconds since the SDL library initialization.
static SDL_Renderer * renderer
const char * SDLTest_CommonUsage(SDLTest_CommonState *state)
Returns common usage information.
#define SDL_atoi
SDL_Renderer ** renderers
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
#define SDL_LogSetPriority
void loop()
#define NULL
Definition: begin_code.h:164
#define SDL_RenderClear
static int num_objects
static SDL_bool cycle_color
#define SDL_SetRenderDrawColor
static SDLTest_CommonState * state
void SDLTest_CommonQuit(SDLTest_CommonState *state)
Close test window.
#define SDL_INIT_VIDEO
Definition: SDL.h:78

Variable Documentation

◆ blendMode

SDL_BlendMode blendMode = SDL_BLENDMODE_NONE
static

Definition at line 35 of file testintersections.c.

Referenced by main().

◆ current_alpha

int current_alpha = 255
static

Definition at line 33 of file testintersections.c.

Referenced by DrawPoints().

◆ current_color

int current_color = 255
static

Definition at line 34 of file testintersections.c.

Referenced by DrawPoints().

◆ cycle_alpha

SDL_bool cycle_alpha
static

Definition at line 31 of file testintersections.c.

Referenced by DrawPoints(), and main().

◆ cycle_color

SDL_bool cycle_color
static

Definition at line 30 of file testintersections.c.

Referenced by DrawPoints(), and main().

◆ cycle_direction

int cycle_direction = 1
static

Definition at line 32 of file testintersections.c.

Referenced by DrawPoints().

◆ done

int done

Definition at line 38 of file testintersections.c.

Referenced by loop(), and main().

◆ lines

Definition at line 85 of file testintersections.c.

◆ mouse_begin_x

int mouse_begin_x = -1

Definition at line 37 of file testintersections.c.

Referenced by loop().

◆ mouse_begin_y

int mouse_begin_y = -1

Definition at line 37 of file testintersections.c.

Referenced by loop().

◆ num_lines

int num_lines = 0

Definition at line 84 of file testintersections.c.

Referenced by add_line(), DrawLines(), DrawRectLineIntersections(), and loop().

◆ num_objects

int num_objects
static

Definition at line 29 of file testintersections.c.

Referenced by DrawPoints(), and main().

◆ num_rects

int num_rects = 0

◆ rects

Definition at line 129 of file testintersections.c.

◆ state

SDLTest_CommonState* state
static

Definition at line 28 of file testintersections.c.