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#include "includes.h"
GameState::GameState(SDL_PixelFormat* fmt)
{
int x,y;
for (y=0;y<HEIGHT;y++)
{
for (x=0;x<WIDTH;x++)
{
blocks[x][y] = false;
}
}
on = SDL_MapRGB(fmt, 0, 0, 0);
off = SDL_MapRGB(fmt, 255, 255, 255);
player_color = SDL_MapRGB(fmt, 255, 255, 0);
playerx = 1;
playery = 1;
}
void GameState::input(SDLKey key)
{
switch (key)
{
case SDLK_LEFT:
move(playerx-1, playery);
break;
case SDLK_RIGHT:
move(playerx+1, playery);
break;
case SDLK_UP:
move(playerx, playery-1);
break;
case SDLK_DOWN:
move(playerx, playery+1);
break;
}
}
void GameState::move(int x, int y)
{
wrap(&x, &y);
if (blocks[x][y]) return;
playerx = x;
playery = y;
}
void GameState::wrap(int* x, int* y)
{
if (*x < 0)
{
*x = WIDTH-(0-*x);
} else if (*y < 0)
{
*y = HEIGHT-(0-*y);
} else if (*x >= WIDTH)
{
*x = *x-WIDTH;
} else if (*y >= HEIGHT)
{
*y = *y-HEIGHT;
}
}
void GameState::render(SDL_Surface* screen)
{
SDL_Rect block;
block.w = 16;
block.h = 16;
int x,y;
for (y=0;y<HEIGHT;y++)
{
for (x=0;x<WIDTH;x++)
{
block.x = x*16;
block.y = y*16;
SDL_FillRect(screen, &block, (blocks[x][y] ? on : off));
}
}
block.x = playerx*16;
block.y = playery*16;
SDL_FillRect(screen, &block, player_color);
}
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