kc3-lang/SDL/test/testspriteminimal.c

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• Hash : b8d85c69
  Author :
  Date : 2022-11-30T12:51:59
  

  Update for SDL3 coding style (#6717)
  
  I updated .clang-format and ran clang-format 14 over the src and test directories to standardize the code base.
  
  In general I let clang-format have it's way, and added markup to prevent formatting of code that would break or be completely unreadable if formatted.
  
  The script I ran for the src directory is added as build-scripts/clang-format-src.sh
  
  This fixes:
  #6592
  #6593
  #6594
  
  (cherry picked from commit 5750bcb174300011b91d1de20edb288fcca70f8c)
  

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• test/testspriteminimal.c

• /*
    Copyright (C) 1997-2022 Sam Lantinga <slouken@libsdl.org>
  
    This software is provided 'as-is', without any express or implied
    warranty.  In no event will the authors be held liable for any damages
    arising from the use of this software.
  
    Permission is granted to anyone to use this software for any purpose,
    including commercial applications, and to alter it and redistribute it
    freely.
  */
  /* Simple program:  Move N sprites around on the screen as fast as possible */
  
  #include <stdlib.h>
  #include <stdio.h>
  #include <time.h>
  
  #ifdef __EMSCRIPTEN__
  #include <emscripten/emscripten.h>
  #endif
  
  #include "SDL.h"
  #include "testutils.h"
  
  #define WINDOW_WIDTH  640
  #define WINDOW_HEIGHT 480
  #define NUM_SPRITES   100
  #define MAX_SPEED     1
  
  static SDL_Texture *sprite;
  static SDL_Rect positions[NUM_SPRITES];
  static SDL_Rect velocities[NUM_SPRITES];
  static int sprite_w, sprite_h;
  
  SDL_Renderer *renderer;
  int done;
  
  /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
  static void
  quit(int rc)
  {
      SDL_Quit();
      exit(rc);
  }
  
  void MoveSprites()
  {
      int i;
      int window_w = WINDOW_WIDTH;
      int window_h = WINDOW_HEIGHT;
      SDL_Rect *position, *velocity;
  
      /* Draw a gray background */
      SDL_SetRenderDrawColor(renderer, 0xA0, 0xA0, 0xA0, 0xFF);
      SDL_RenderClear(renderer);
  
      /* Move the sprite, bounce at the wall, and draw */
      for (i = 0; i < NUM_SPRITES; ++i) {
          position = &positions[i];
          velocity = &velocities[i];
          position->x += velocity->x;
          if ((position->x < 0) || (position->x >= (window_w - sprite_w))) {
              velocity->x = -velocity->x;
              position->x += velocity->x;
          }
          position->y += velocity->y;
          if ((position->y < 0) || (position->y >= (window_h - sprite_h))) {
              velocity->y = -velocity->y;
              position->y += velocity->y;
          }
  
          /* Blit the sprite onto the screen */
          SDL_RenderCopy(renderer, sprite, NULL, position);
      }
  
      /* Update the screen! */
      SDL_RenderPresent(renderer);
  }
  
  void loop()
  {
      SDL_Event event;
  
      /* Check for events */
      while (SDL_PollEvent(&event)) {
          if (event.type == SDL_QUIT || event.type == SDL_KEYDOWN) {
              done = 1;
          }
      }
      MoveSprites();
  #ifdef __EMSCRIPTEN__
      if (done) {
          emscripten_cancel_main_loop();
      }
  #endif
  }
  
  int main(int argc, char *argv[])
  {
      SDL_Window *window;
      int i;
  
      /* Enable standard application logging */
      SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
  
      if (SDL_CreateWindowAndRenderer(WINDOW_WIDTH, WINDOW_HEIGHT, 0, &window, &renderer) < 0) {
          quit(2);
      }
  
      sprite = LoadTexture(renderer, "icon.bmp", SDL_TRUE, &sprite_w, &sprite_h);
  
      if (sprite == NULL) {
          quit(2);
      }
  
      /* Initialize the sprite positions */
      srand((unsigned int)time(NULL));
      for (i = 0; i < NUM_SPRITES; ++i) {
          positions[i].x = rand() % (WINDOW_WIDTH - sprite_w);
          positions[i].y = rand() % (WINDOW_HEIGHT - sprite_h);
          positions[i].w = sprite_w;
          positions[i].h = sprite_h;
          velocities[i].x = 0;
          velocities[i].y = 0;
          while (!velocities[i].x && !velocities[i].y) {
              velocities[i].x = (rand() % (MAX_SPEED * 2 + 1)) - MAX_SPEED;
              velocities[i].y = (rand() % (MAX_SPEED * 2 + 1)) - MAX_SPEED;
          }
      }
  
      /* Main render loop */
      done = 0;
  
  #ifdef __EMSCRIPTEN__
      emscripten_set_main_loop(loop, 0, 1);
  #else
      while (!done) {
          loop();
      }
  #endif
      quit(0);
  
      return 0; /* to prevent compiler warning */
  }
  
  /* vi: set ts=4 sw=4 expandtab: */
  

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