whatever: converted to SDL2

2016-11-12 18:03:17 -07:00
parent 32a27b2d68
commit 85f2956c67
5 changed files with 237 additions and 58 deletions
--- a/sdl/whatever/whateverSDL1.c
+++ b/sdl/whatever/whateverSDL1.c
@@ -0,0 +1,136 @@
+#include "SDL/SDL.h"
+
+//Write a function that moves an image based on which arrow keys are pressed.
+//something like
+//void move_image(direction, image);
+
+
+
+
+int main ( int argc, char *argv[] )
+{
+  /* initialize SDL */
+  if (SDL_Init(SDL_INIT_VIDEO) != 0){
+		printf("Unable to init SDL!: %s\n", SDL_GetError());
+		return 1;
+	}
+
+  /* set the title bar */
+  SDL_WM_SetCaption("SDL Test", "SDL Test");
+	
+	/* init surfaces */
+	SDL_Surface* screen;
+	SDL_Surface* temp;
+	SDL_Surface* bg;
+	SDL_Surface* top_image;
+	SDL_Rect src, dest;
+
+
+  /* create window of size 640x480 in hi-color (16-bit) mode*/ 
+	screen = SDL_SetVideoMode(640, 480, 16, 0);
+
+	if (screen == NULL){
+		printf("Unable to set video mode: %s\n", SDL_GetError());
+		return 1;
+	}
+	atexit(SDL_Quit);
+
+  /* load bitmap to temp surface */
+  temp = SDL_LoadBMP("sdl_logo.bmp");
+
+	if (temp == NULL){
+		printf("Unable to find image!!: %s\n", SDL_GetError());
+		return 1;
+	}
+
+  /* convert bitmap to display format */
+  bg = SDL_DisplayFormat(temp);
+	if (bg == NULL){
+		printf("Unable to format image!: %s\n", SDL_GetError());
+	}
+
+
+  /* free the temp surface 
+	 * What we are doing above, with temp is simply
+	 * making everything easier to deal with
+	 * then freeing the extra memory space.
+	 * i.e: We could have just as easily done
+	 * SDL_DisplayFormat(SDL_LoadBMP("sdl_logo.bmp"));*/
+  SDL_FreeSurface(temp);
+
+	/* load top_image image to practice blit on top of surface*/
+	temp = SDL_LoadBMP("dinowheel.bmp");
+	if (temp == NULL){
+		printf("Unable to load top_image: %s/n", SDL_GetError());
+		return 1;
+	}
+
+	top_image = SDL_DisplayFormat(temp);
+	if (top_image == NULL){
+		printf("Unable to format top_image: %s/n", SDL_GetError());
+		return 1;
+	}
+
+	SDL_FreeSurface(temp);
+
+	src.x = 0;
+	src.y = 0;
+	src.w = top_image->w; /* copy entire image */
+	src.h = top_image->h;
+  /* Could also do "dest = src" if they were to start at the same spot */
+	dest.x = 25;
+	dest.y = 25;
+	dest.w = top_image->w;
+	dest.h = top_image->h;
+
+  SDL_Event event;
+  int gameover = 0;
+
+  /* message pump */
+  while (!gameover)
+  {
+    /* look for an event */
+    if (SDL_PollEvent(&event)) {
+      /* an event was found */
+      switch (event.type) {
+        /* close button clicked */
+        case SDL_QUIT:
+          gameover = 1;
+          break;
+
+        /* handle the keyboard */
+        case SDL_KEYDOWN:
+          switch (event.key.keysym.sym) {
+            case SDLK_ESCAPE:
+            case SDLK_q:
+              gameover = 1;
+              break;
+						case SDLK_w:
+							printf("You just pressed 'w'\n");
+							break;
+          }
+          break;
+      }
+    }
+
+    /* draw the background */
+    SDL_BlitSurface(bg, NULL, screen, NULL);
+
+		/* Blit top_image to the screen */
+		SDL_BlitSurface(top_image, &src, screen, &dest);
+
+    /* update the screen */
+    SDL_UpdateRect(screen, 0, 0, 0, 0);
+  }
+
+  /* free the background surface */
+  SDL_FreeSurface(bg);
+
+	/* free top_image */
+	SDL_FreeSurface(top_image);
+
+  /* cleanup SDL */
+  SDL_Quit();
+
+  return 0;
+}