fb0ce375f0
* Add braces after if conditions
* More add braces after if conditions
* Add braces after while() conditions
* Fix compilation because of macro being modified
* Add braces to for loop
* Add braces after if/goto
* Move comments up
* Remove extra () in the 'return ...;' statements
* More remove extra () in the 'return ...;' statements
* More remove extra () in the 'return ...;' statements after merge
* Fix inconsistent patterns are xxx == NULL vs !xxx
* More "{}" for "if() break;" and "if() continue;"
* More "{}" after if() short statement
* More "{}" after "if () return;" statement
* More fix inconsistent patterns are xxx == NULL vs !xxx
* Revert some modificaion on SDL_RLEaccel.c
* SDL_RLEaccel: no short statement
* Cleanup 'if' where the bracket is in a new line
* Cleanup 'while' where the bracket is in a new line
* Cleanup 'for' where the bracket is in a new line
* Cleanup 'else' where the bracket is in a new line
(cherry picked from commit 6a2200823c to reduce conflicts merging between SDL2 and SDL3)
93 lines
2 KiB
C
93 lines
2 KiB
C
/*
|
|
* rectangles.c
|
|
* written by Holmes Futrell
|
|
* use however you want
|
|
*/
|
|
|
|
#include "SDL.h"
|
|
#include <time.h>
|
|
#include "common.h"
|
|
|
|
void
|
|
render(SDL_Renderer *renderer)
|
|
{
|
|
Uint8 r, g, b;
|
|
int renderW;
|
|
int renderH;
|
|
|
|
SDL_RenderGetLogicalSize(renderer, &renderW, &renderH);
|
|
|
|
/* Come up with a random rectangle */
|
|
SDL_Rect rect;
|
|
rect.w = randomInt(64, 128);
|
|
rect.h = randomInt(64, 128);
|
|
rect.x = randomInt(0, renderW);
|
|
rect.y = randomInt(0, renderH);
|
|
|
|
/* Come up with a random color */
|
|
r = randomInt(50, 255);
|
|
g = randomInt(50, 255);
|
|
b = randomInt(50, 255);
|
|
|
|
/* Fill the rectangle in the color */
|
|
SDL_SetRenderDrawColor(renderer, r, g, b, 255);
|
|
SDL_RenderFillRect(renderer, &rect);
|
|
|
|
/* update screen */
|
|
SDL_RenderPresent(renderer);
|
|
}
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
|
|
SDL_Window *window;
|
|
SDL_Renderer *renderer;
|
|
int done;
|
|
SDL_Event event;
|
|
int windowW;
|
|
int windowH;
|
|
|
|
/* initialize SDL */
|
|
if (SDL_Init(SDL_INIT_VIDEO) < 0) {
|
|
fatalError("Could not initialize SDL");
|
|
}
|
|
|
|
/* seed random number generator */
|
|
srand(time(NULL));
|
|
|
|
/* create window and renderer */
|
|
window = SDL_CreateWindow(NULL, 0, 0, 320, 480, SDL_WINDOW_ALLOW_HIGHDPI);
|
|
if (window == NULL) {
|
|
fatalError("Could not initialize Window");
|
|
}
|
|
renderer = SDL_CreateRenderer(window, -1, 0);
|
|
if (renderer == NULL) {
|
|
fatalError("Could not create renderer");
|
|
}
|
|
|
|
SDL_GetWindowSize(window, &windowW, &windowH);
|
|
SDL_RenderSetLogicalSize(renderer, windowW, windowH);
|
|
|
|
/* Fill screen with black */
|
|
SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
|
|
SDL_RenderClear(renderer);
|
|
|
|
/* Enter render loop, waiting for user to quit */
|
|
done = 0;
|
|
while (!done) {
|
|
while (SDL_PollEvent(&event)) {
|
|
if (event.type == SDL_QUIT) {
|
|
done = 1;
|
|
}
|
|
}
|
|
render(renderer);
|
|
SDL_Delay(1);
|
|
}
|
|
|
|
/* shutdown SDL */
|
|
SDL_Quit();
|
|
|
|
return 0;
|
|
}
|