sdl_graphics.cpp

#include "sdl_graphics.h"
#include "constants.h"

SDL_Graphics::SDL_Graphics(int windowWidth, int windowHeight, int bgR, int bgG, int bgB)
{
	SDL_Init(SDL_INIT_VIDEO);

	TTF_Init();

	screen = SDL_SetVideoMode( windowWidth, windowHeight, SCREEN_BPP, SDL_SWSURFACE );

    SDL_WM_SetCaption( "Dan's 'Conway's Game Of Life' Clone", NULL );

	setBackgroundColor(bgR, bgG, bgB);

	greensquare = loadBitmap("greensquare.bmp");

	redsquare = loadBitmap("redsquare.bmp");
}

SDL_Graphics::~SDL_Graphics()
{
	TTF_Quit();
	SDL_Quit();
}

SDL_Surface* SDL_Graphics::loadBitmap(const char* imageFileName)
{
	SDL_Surface* bitmap = SDL_LoadBMP(imageFileName);
	return bitmap;
}

void SDL_Graphics::clearScreen()
{
	//fill screen with solid color
	SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, backgroundColorRed, backgroundColorGreen, backgroundColorBlue));
}

void SDL_Graphics::updateScreen()
{
	SDL_Flip(screen);
}

void SDL_Graphics::drawSprite(int x, int y, SDL_Surface* source, SDL_Surface* destination, SDL_Rect* clip)
{
    //Holds offsets
    SDL_Rect offset;

    //Get offsets
    offset.x = x;
    offset.y = y;
	SDL_BlitSurface(source, clip, destination, &offset);
}

void SDL_Graphics::setBackgroundColor(int r, int g, int b)
{
	backgroundColorRed = r;
	backgroundColorGreen = g;
	backgroundColorBlue = b;
}

SDL_Surface* SDL_Graphics::getShapeSurfaceGreenSquare()
{
	return greensquare;
}

SDL_Surface* SDL_Graphics::getShapeSurfaceRedSquare()
{
	return redsquare;
}


SDL_Surface* SDL_Graphics::getShapeSurfaceScreen()
{
	return screen;
}