whatever: functionized tons
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@ -1,132 +1,69 @@
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#include "SDL2/SDL.h"
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#include "SDL2/SDL.h"
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#include <stdbool.h>
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//Write a function that moves an image based on which arrow keys are pressed.
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//Write a function that moves an image based on which arrow keys are pressed.
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//something like
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//something like
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//functionize, everything
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//functionize, everything
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//void move_image(direction, image);
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//void move_image(direction, image);
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/* start SDL and create a window */
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int init();
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/* load the media durr */
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int loadMedia();
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/* Free the surfaces and whatnot */
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void close_game();
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/* Our main window */
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SDL_Window* gScreen;
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/*screen dimensions*/
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const int screen_width = 1024;
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const int screen_height = 768;
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/* Our renderer */
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SDL_Renderer* gRenderer;
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/* Surface for loading BMP */
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SDL_Surface* gTemp;
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/* Texture for background */
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SDL_Texture* gBackground_texture;
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/* Texture for characters */
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SDL_Texture* gPlayer;
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/* Player coors */
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SDL_Rect gPlayer_dest = { 0 };
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int main ( int argc, char *argv[] )
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int main ( int argc, char *argv[] )
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{
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{
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/* initialize SDL */
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/* How fast our player moves */
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if (SDL_Init(SDL_INIT_EVERYTHING) != 0){
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printf("Unable to init SDL!: %s\n", SDL_GetError());
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return 1;
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}
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/* init surfaces */
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SDL_Window* screen; //No longer need to do this part I suppose
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SDL_Renderer* renderer;
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SDL_Surface* temp;
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SDL_Texture* top_image;
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const char background_imagefile[] = "sdl_logo.bmp";
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SDL_Surface* background_surface;
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SDL_Texture* background_texture;
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SDL_Rect top_image_dest = { 0 };
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/*Event handler */
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SDL_Event e;
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int screen_width = 1024, screen_height = 768;
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int top_image_width = 0, top_image_height = 0;
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int movement_speed = 1;
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int movement_speed = 1;
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if (init() == 1)
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/* create window of size 640x480 and set title bar*/
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{
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screen = SDL_CreateWindow("SDL TEST",
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printf("init failed!\n");
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SDL_WINDOWPOS_CENTERED,
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close_game();
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SDL_WINDOWPOS_CENTERED,
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screen_width, screen_height,
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0);
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if (screen == NULL){
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printf("Unable to set video mode: %s\n", SDL_GetError());
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return 1;
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return 1;
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}
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}
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if (loadMedia() == 1)
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{
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printf("loadMedia failed!\n");
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close_game();
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return 1;
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}
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/*Event handler */
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SDL_Event e;
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renderer = SDL_CreateRenderer(screen, -1, 0);
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/* quit if gameover is not 0 */
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int gameover = 0;
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if (renderer == NULL){
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printf("Unable to create renderer: %s\n", SDL_GetError());
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}
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atexit(SDL_Quit);
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/* load bitmap to surface */
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background_surface = SDL_LoadBMP(background_imagefile);
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if (background_surface == NULL){
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printf("Unable to find image!!: %s\n", SDL_GetError());
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return 1;
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}
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else{
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/* convert bitmap to texture */
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background_texture = SDL_CreateTextureFromSurface(renderer, background_surface);
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SDL_FreeSurface(background_surface); // No longer need the surface
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background_surface = NULL;
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if(background_texture == NULL) {
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printf("Failed to create texture from background surface: %s\n", SDL_GetError());
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return 1;
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}
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}
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/* load top_image image to practice blit on top of surface*/
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temp = SDL_LoadBMP("dinowheel.bmp");
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if (temp == NULL){
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printf("Unable to load top_image: %s/n", SDL_GetError());
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return 1;
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}
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else{
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top_image = SDL_CreateTextureFromSurface(renderer, temp);
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SDL_FreeSurface(temp);
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temp = NULL;
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if(top_image == NULL) {
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printf("Failed to create texture from top_image: %s\n", SDL_GetError());
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return 1;
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}
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/* Get height and width of top_image */
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SDL_QueryTexture(top_image, NULL, NULL, &top_image_width, &top_image_height);
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/* Prepare top_image for inital position */
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top_image_dest.x = (screen_width / 2) - (top_image_width / 2);
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top_image_dest.y = (screen_width / 2) - (top_image_height / 2);
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top_image_dest.w = top_image_width;
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top_image_dest.h = top_image_height;
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}
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int gameover = 0;
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/* message pump */
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/* message pump */
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while (!gameover)
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while (!gameover)
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{
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{
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/* look for an event */
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// if (SDL_PollEvent(&event)) {
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/* an event was found */
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// switch (event.type) {
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/* close button clicked */
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// case SDL_QUIT:
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// gameover = 1;
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// break;
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// switch (event.key.keysym.sym) {
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// case SDLK_ESCAPE:
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// case SDLK_q:
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// gameover = 1;
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// break;
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// case SDLK_w:
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// printf("You just pressed 'w'\n");
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// break;
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// case SDLK_DOWN:
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// top_image_dest.y += movement_speed;
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// break; */
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/*Try handling the key_events differently */
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/*handle events on queue */
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/*handle events on queue */
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while ( SDL_PollEvent( &e ) != 0)
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while ( SDL_PollEvent( &e ) != 0)
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{
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{
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@ -146,40 +83,127 @@ int main ( int argc, char *argv[] )
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if (currentKeyStates[ SDL_SCANCODE_LEFT ] )
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if (currentKeyStates[ SDL_SCANCODE_LEFT ] )
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{
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{
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top_image_dest.x -= movement_speed;
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gPlayer_dest.x -= movement_speed;
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}
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}
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if (currentKeyStates[ SDL_SCANCODE_RIGHT ] )
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if (currentKeyStates[ SDL_SCANCODE_RIGHT ] )
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{
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{
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top_image_dest.x += movement_speed;
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gPlayer_dest.x += movement_speed;
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}
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}
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if (currentKeyStates[ SDL_SCANCODE_UP ] )
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if (currentKeyStates[ SDL_SCANCODE_UP ] )
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{
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{
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top_image_dest.y -= movement_speed;
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gPlayer_dest.y -= movement_speed;
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}
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}
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if (currentKeyStates[ SDL_SCANCODE_DOWN ] )
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if (currentKeyStates[ SDL_SCANCODE_DOWN ] )
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{
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{
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top_image_dest.y += movement_speed;
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gPlayer_dest.y += movement_speed;
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}
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}
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/* render the background */
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/* render the background */
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SDL_RenderCopy(renderer, background_texture, NULL, NULL);
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SDL_RenderCopy(gRenderer, gBackground_texture, NULL, NULL);
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/* Render entire top_image to center of screen */
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/* Render entire gPlayer to center of screen */
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SDL_RenderCopy(renderer, top_image, NULL, &top_image_dest);
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SDL_RenderCopy(gRenderer, gPlayer, NULL, &gPlayer_dest);
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/* Render here */
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/* Render here */
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SDL_RenderPresent(renderer);
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SDL_RenderPresent(gRenderer);
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}
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}
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/* cleanup SDL */
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if (renderer) SDL_DestroyRenderer(renderer);
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if (screen) SDL_DestroyWindow(screen);
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if (background_texture) SDL_DestroyTexture(background_texture);
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if (top_image) SDL_DestroyTexture(top_image);
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SDL_Quit();
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return 0;
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return 0;
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}
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}
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int init()
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{
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/* initialize SDL */
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if (SDL_Init(SDL_INIT_EVERYTHING) != 0){
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printf("Unable to init SDL!: %s\n", SDL_GetError());
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return 1;
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}
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/* create window of size 640x480 and set title bar*/
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gScreen = SDL_CreateWindow("SDL TEST",
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SDL_WINDOWPOS_CENTERED,
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SDL_WINDOWPOS_CENTERED,
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screen_width, screen_height,
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0);
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if (gScreen == NULL){
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printf("Unable to set video mode: %s\n", SDL_GetError());
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return 1;
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}
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return 0;
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}
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int loadMedia()
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{
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const char background_imagefile[] = "sdl_logo.bmp";
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gRenderer = SDL_CreateRenderer(gScreen, -1, 0);
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if (gRenderer == NULL){
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printf("Unable to create renderer: %s\n", SDL_GetError());
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}
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/* load background bitmap to surface */
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gTemp = SDL_LoadBMP(background_imagefile);
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if (gTemp == NULL){
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printf("Unable to find image!!: %s\n", SDL_GetError());
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return 1;
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}
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else{
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/* convert bitmap to texture */
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gBackground_texture = SDL_CreateTextureFromSurface(gRenderer, gTemp);
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SDL_FreeSurface(gTemp); // No longer need the surface
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gTemp = NULL;
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if(gBackground_texture == NULL) {
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printf("Failed to create texture from background surface: %s\n", SDL_GetError());
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return 1;
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}
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}
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/* load gPlayer image to practice blit on top of surface*/
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gTemp = SDL_LoadBMP("dinowheel.bmp");
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if (gTemp == NULL){
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printf("Unable to load gPlayer: %s/n", SDL_GetError());
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return 1;
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}
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else{
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gPlayer = SDL_CreateTextureFromSurface(gRenderer, gTemp);
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SDL_FreeSurface(gTemp);
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gTemp = NULL;
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if(gPlayer == NULL) {
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printf("Failed to create texture from gPlayer: %s\n", SDL_GetError());
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return 1;
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}
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}
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int player_image_width, player_image_height;
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/* Get height and width of gPlayer */
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SDL_QueryTexture(gPlayer, NULL, NULL, &player_image_width, &player_image_height);
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/* Prepare gPlayer for inital position */
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gPlayer_dest.x = (screen_width / 2) - (player_image_width / 2);
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gPlayer_dest.y = (screen_width / 2) - (player_image_height / 2);
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gPlayer_dest.w = player_image_width;
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gPlayer_dest.h = player_image_height;
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return 0;
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}
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void close_game()
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{
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/* cleanup SDL */
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if (gRenderer) SDL_DestroyRenderer(gRenderer);
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if (gScreen) SDL_DestroyWindow(gScreen);
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if (gBackground_texture) SDL_DestroyTexture(gBackground_texture);
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if (gPlayer) SDL_DestroyTexture(gPlayer);
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SDL_Quit();
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}
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