Kaktus - getIt

#include "SDL/SDL.h"

#include "classes.h"

using namespace std;

bool gameLoop = true;
int window_x = 640;
int window_y = 480;

SDL_Surface *screen = SDL_SetVideoMode(window_x, window_y, 32, SDL_SWSURFACE);
SDL_Surface *background = SDL_LoadBMP("images/background.bmp");
SDL_Surface *tileset = SDL_LoadBMP("images/tileset.bmp");

int drawUnit(int x, int y, int i);

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);
    SDL_WM_SetCaption("Kaktus - getIt", NULL);

    Uint8 *key;

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

    cPlayer.x = 32;
    cPlayer.y = 0;
    cPlayer.xspeed = 1;
    cPlayer.yspeed = 1;

    cKey.x = 40;
    cKey.y = 340;

    cCpu.unlock = false;


    //gameloop
    while(gameLoop) {
        SDL_PumpEvents();

        key = SDL_GetKeyState(NULL);

        if(key[SDLK_DOWN] || key[SDLK_s]) {
            cPlayer.y+=cPlayer.yspeed;
        }

        if(key[SDLK_UP] || key[SDLK_w]) {
            cPlayer.y-=cPlayer.yspeed;
        }

        if(key[SDLK_RIGHT] || key[SDLK_d]) {
            cPlayer.x+=cPlayer.xspeed;
        }

        if(key[SDLK_LEFT] || key[SDLK_a]) {
            cPlayer.x-=cPlayer.xspeed;
        }

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

        if(!cCpu.unlock) {
            if((cPlayer.y + 32 > cKey.y && cPlayer.y < cKey.y + 32) || (cPlayer.y > cKey.y + 32 && cPlayer.y <cKey.y)) {
                if((cPlayer.x + 16 > cKey.x && cPlayer.x < cKey.x + 18) || (cPlayer.x < cKey.x + 18 && cPlayer.x + 16 > cKey.x)) {
                    cKey.x = rand() % (640 - 16) + (0-16);
                    cKey.y = rand() % 480 + (0+8);

                    cCpu.unlock = true;
                }
            }
        }


        //if((cPlayer.x + 16 > 0 && cPlayer.x < (640-32)) || (cPlayer.x < (640-32) && cPlayer.x + 16 > 0));
        if((cPlayer.x + 16 > 0 && cPlayer.x < (640-32)) || (cPlayer.x < (640-32) && cPlayer.x + 16 > 0)) {
            if((cPlayer.y + 32 > (480/2) && cPlayer.y < (480/2) + 32)) {
                cPlayer.y++;
            }
        }

        if((cPlayer.x + 16 > 0 && cPlayer.x < (640-32)) || (cPlayer.x < (640-32) && cPlayer.x + 16 > 0)) {
            if(cPlayer.y > (480/2) + 32 && cPlayer.y < (480/2)) {
                cPlayer.y++;
            }
        }


        if(cPlayer.x < window_x-640) {
            cPlayer.x++;
        } else if(cPlayer.x + 16 > window_x) {
            cPlayer.x--;
        }

        if(cPlayer.y < window_y - 480) {
            cPlayer.y++;
        } else if(cPlayer.y + 32 > window_y) {
            cPlayer.y--;
        }



        apply_surface(0, 0, background, screen);

        if(!cCpu.unlock) {
            drawUnit(0, 0, 2);
            drawUnit(cKey.x, cKey.y, 4);
        } else if(cCpu.unlock) {
            drawUnit(0, 0, 3);
        }

        for(int i = 0; i<(640/32); i++) {
            drawUnit((i*31), (480/2), 5);
        }

        drawUnit(cPlayer.x, cPlayer.y, 1);


        SDL_Flip(screen);
    }


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

int drawUnit(int x, int y, int i) {

    //player
    if(i == 1) {
        load_sprite(x, y, tileset, screen, 1, 1, 16, 32);
    }

    //Locked
    else if(i == 2) {
        load_sprite(x, y, tileset, screen, 32+ 2, 1, 32, 32);
    }

    //Unlocked
    else if(i == 3) {
        load_sprite(x, y, tileset, screen, 64+3, 1, 32, 32);
    }

    //key
    else if(i == 4) {
        load_sprite(x, y, tileset, screen, 96+4, 1, 31, 18);
    }

    //line
    else if(i == 5) {
        load_sprite(x, y, tileset, screen, (96+32)+5, 1, 32, 32);
    }

    return i;
}