Chaos Project

#include <SDL.h>
#include <SDL_image.h>
#include <SDL_ttf.h>
#include <string>
#include "SpriteSheet.h"
#include <SDL_mixer.h>
#undef main

const int SCREEN_WIDTH = 640;
const int SCREEN_HEIGHT = 480;
const int SCREEN_BPP = 32;

SDL_Surface* screen = NULL;
SDL_Surface* image = NULL;
SDL_Surface* text = NULL;
SpriteSheet* sheet = NULL;

SDL_Event event;

TTF_Font* font;
SDL_Color text_color = {255, 255, 255};

bool init()
{
	if (SDL_Init(SDL_INIT_EVERYTHING) == -1)
		return false;
	screen = SDL_SetVideoMode(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_BPP, SDL_SWSURFACE);
	if (screen == NULL)
		return false;
	if (TTF_Init() == -1)
		return false;
	SDL_WM_SetCaption("Shooter", NULL);
	return true;
}

Uint32 get_pixel32( SDL_Surface *surface, int x, int y )
{
    Uint32 *pixels = (Uint32 *)surface->pixels;
    return pixels[ ( y * surface->w ) + x ];
}

void put_pixel32( SDL_Surface *surface, int x, int y, Uint32 pixel )
{
    Uint32 *pixels = (Uint32 *)surface->pixels;
    pixels[ ( y * surface->w ) + x ] = pixel;
}

SDL_Surface *loadImage(std::string filename)
{
	SDL_Surface* loadedImage = NULL;
	SDL_Surface* optimizedImage = NULL;
	loadedImage = IMG_Load(filename.c_str());
	if (loadedImage != NULL)
	{
		optimizedImage = SDL_DisplayFormat(loadedImage);
		SDL_FreeSurface(loadedImage);
	}
	if (optimizedImage != NULL)
	{
		Uint32 colorKey = get_pixel32(optimizedImage, 0, 0);
		SDL_SetColorKey(optimizedImage, SDL_SRCCOLORKEY, colorKey);
	}
	return optimizedImage;
}

bool load_files()
{
	image = loadImage("001-Fighter01.png");
	sheet = new SpriteSheet(image, 4, 4, false);
	font = TTF_OpenFont("BurstMyBubble.ttf", 28);
	if (font == NULL)
		return false;
	if (image == NULL)
		return false;
	return true;
}

bool clean_up()
{
	SDL_FreeSurface(image);
	SDL_FreeSurface(text);
	TTF_CloseFont(font);
	TTF_Quit();
	SDL_Quit();
	return true;
}

void blitSurface(int x, int y, SDL_Surface* source, SDL_Surface* destination, SDL_Rect* srcrect, SDL_Rect* target)
{
	SDL_BlitSurface(source, srcrect, destination, target);
}

int main(int argc, char* args[])
{
	bool quit = false;
    if (!init())
		return 1;
	load_files();
	text = TTF_RenderText_Solid(font, "lol. Animation.", text_color);
	int frame = 0;
	int tick = 0;
	SDL_Rect message;
	message.x = 4;
	message.y = 4;
	SDL_Rect sprite;
	sprite.x = 32;
	sprite.y = 32;
	while (!quit)
	{
		while (SDL_PollEvent(&event))
		{
			if (event.type == SDL_QUIT)
				quit = true;
			else if (event.type = SDL_KEYDOWN)
			{
				switch( event.key.keysym.sym )
                {
                    case SDLK_UP: 
						sprite.y -= 4;
						break;
                    case SDLK_DOWN: 
						sprite.y += 4;
						break;
                    case SDLK_LEFT: 
						sprite.x -= 4;
						break;
                    case SDLK_RIGHT: 
						sprite.x += 4;
						break;
                }
			}
		}
		SDL_FillRect(screen, &screen->clip_rect, SDL_MapRGB(screen->format, 0, 0, 0));
		blitSurface(4, 4, text, screen, NULL, &message);
		tick++;
		blitSurface(32, 32, image, screen, sheet->frame(frame), &sprite);
		if (tick > 100)
		{
			tick = 0;
			frame++;
		}
		if (frame > 15)
			frame = 0;
		if (SDL_Flip(screen) == -1)
			return 1;
	}
	clean_up();
    return 0;    
}