Kaktus - Digging

#include "SDL/SDL.h"
#include "classes.h"

SDL_Surface *tileset = SDL_LoadBMP("data/images/tileset.bmp");
SDL_Surface *background = SDL_LoadBMP("data/images/background.bmp");
SDL_Surface *screen = SDL_SetVideoMode(640, 480, 32, SDL_SWSURFACE);

void apply_surface(int x, int y, SDL_Surface *source, SDL_Surface *destination) {
    SDL_Rect rect;

    rect.x = x;
    rect.y = y;

    SDL_BlitSurface(source, NULL, destination, &rect);
}

void load_sprite(int x, int y, SDL_Surface *source, SDL_Surface *destination, int bx, int by, int width, int height) {
    SDL_Rect rect;
    SDL_Rect offset;

    offset.x = x;
    offset.y = y;

    rect.x = bx;
    rect.y = by;
    rect.w = width;
    rect.h = height;

    SDL_BlitSurface(source, &rect, destination, &offset);
}

int main(int argc, char *args[]) {
    SDL_Init(SDL_INIT_EVERYTHING);

    bool gameLoop = true;
    int currentTick = SDL_GetTicks();
    Uint8 *key;
    int maxFps = 30;
    int i, i2;

    Uint32 colorkey = SDL_MapRGB( tileset->format, 255, 0, 255);
    SDL_SetColorKey( tileset, SDL_SRCCOLORKEY, colorkey );

    cPlayer.x = 0;
    cPlayer.y = 0;

    int map[15][20] = {
        {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
        {3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3},
        {3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3},
        {3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3},
        {3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3},
        {3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3},
        {3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3},
        {3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3},
        {3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3},
        {3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3},
        {3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3},
        {3,3,3,3,3,3,3,3,3,3,3,3,3,4,3,3,3,3,3,3},
        {3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3},
        {3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3},
        {3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3},
    };

    while(gameLoop) {
        SDL_PumpEvents();
        key = SDL_GetKeyState(NULL);
        currentTick = SDL_GetTicks();
        apply_surface(0, 0, background, screen);


        //fps
        if(SDL_GetTicks() - currentTick < 1000 / maxFps) {
            SDL_Delay(((1000/maxFps)-(SDL_GetTicks() - currentTick)));
        }

        if(key[SDLK_LEFT] || key[SDLK_a]) {
            cPlayer.x -= 32;
        }
        else if(key[SDLK_RIGHT] || key[SDLK_d]) {
            cPlayer.x += 32;
        }
        else if(key[SDLK_DOWN] || key[SDLK_s]) {
            cPlayer.y += 32;
        }
        else if(key[SDLK_UP] || key[SDLK_w]) {
            cPlayer.y -= 32;
        }

        if(key[SDLK_ESCAPE]) {
            gameLoop = false;
        }

        for(i=0; i<15; i++) {
            for(i2=0; i2<20; i2++) {
                switch(map[i][i2]) {
                    case 0:
                        load_sprite(i2*32, i*32, tileset, screen, 2+32, 1, 32, 32);
                        break;

                    case 1:
                        load_sprite(i2*32, i*32, tileset, screen, 4+(32*4), 1, 32, 32);
                        break;

                    case 2:
                        load_sprite(i2*32, i*32, tileset, screen, 3+(32*3), 1, 32, 32);
                        break;

                    case 3:
                        load_sprite(i2*32, i*32, tileset, screen, 3+(32*2), 1, 32, 32);
                        break;

                    case 4:
                        load_sprite(i2*32, i*32, tileset, screen, 5+(32*5), 1, 32, 32);
                }
                if(i2 == cPlayer.x / 32 && i == cPlayer.y / 32) {
                    map[i][i2] = 0;
                }
            }
        }
        load_sprite(cPlayer.x, cPlayer.y, tileset, screen, 1, 1, 32, 32);

        SDL_Flip(screen);
    }

    SDL_FreeSurface(tileset);
    SDL_FreeSurface(background);
    SDL_Quit();
}