#include "stdafx.h"

Map::Map(void)
{
	height = SCREEN_HEIGHT/TILE_HEIGHT;
	width = SCREEN_WIDTH/TILE_WIDTH;
	sx = 0;
	sy = 0;

    
    //Passability
	tileset[0] = 0;
	tileset[1] = 0;
	tileset[2] = 0;
    tileset[3] = 0;
	tileset[4] = 0;
	tileset[5] = 0;
    tileset[6] = 1;
	tileset[7] = 1;
	tileset[8] = 1;
    tileset[9] = 1;
	tileset[10] = 1;
	tileset[11] = 1;
    tileset[12] = 1;
	tileset[13] = 1;
	tileset[14] = 1;
    

    //Get the Sheet
    sheet = IMG_Load("./sprites/tilesheet.gif");
    Uint32 colorkey = SDL_MapRGB(sheet->format, 255, 0, 255);
    SDL_SetColorKey(sheet, SDL_SRCCOLORKEY | SDL_RLEACCEL, colorkey);	//le ponemos al buddy el colorkey para las transparencias

	std::ifstream in("./map0.bin", std::ios::in | std::ios::binary);
	
	int length;
	
	//get the size
	in.seekg (0, std::ios::end);
	length = in.tellg();
	in.seekg (0, std::ios::beg);

	in.read((char *) &tiles, length);

	// see how many bytes have been read
	std::cout << in.gcount() << " bytes read\n";

	in.close();
	
}

void Map::drawmap(SDL_Surface *viewport){
	
	int x1, x2, y1, y2, tx, ty;
	tx = sx/TILE_WIDTH;
	ty = sy/TILE_HEIGHT;
	x1 = (sx%TILE_WIDTH) * -1;
	x2 = x1 + SCREEN_WIDTH + (x1 == 0 ? 0 : TILE_WIDTH);
	y1 = (sy%TILE_HEIGHT) * -1;
	y2 = y1 + SCREEN_HEIGHT + (y1 == 0 ? 0 : TILE_WIDTH);

	for(int y = y1; y<y2; y+=TILE_HEIGHT){
		tx = sx/TILE_WIDTH;
		for(int x = x1; x<x2; x+=TILE_WIDTH){
			this->draw_tile(viewport, tiles[ty][tx], x, y);
			tx++;
		}
		ty++;
	}
}

void Map::draw_tile(SDL_Surface *viewport, int type, int x, int y){
    
	if(type > 14 || type < 0){
        type = 0;
    }
    
    int x_tile, y_tile;
    
    x_tile = floor(type / 3) * TILE_HEIGHT;
    y_tile = (type % 3) * TILE_WIDTH;
    
    /*Draws a rectangular surface from sx,sy of swxsh dimensions to dx, dy*/
    Gfx::drawsurface(y_tile, x_tile, TILE_WIDTH, TILE_HEIGHT, this->sheet,
                x, y, viewport);
    
//    switch (type) {
//            
//        
//    
//		case 0:
//        case 1:
//        case 2:
//			/*boxRGBA(viewport,
//					x, y,
//					x+25, y+25,
//					255, 255, 255, 255);*/
//			break;
//		case 3:
//        case 4:
//        case 5:
//			boxRGBA(viewport,
//					x, y,
//					x+TILE_WIDTH, y+TILE_HEIGHT,
//					238, 0, 139, 255);
//		break;
//		case 6:
//        case 7:
//        case 8:
//			boxRGBA(viewport,
//					x, y,
//					x+TILE_WIDTH, y+TILE_HEIGHT,
//					34, 34, 34, 255);
//		break;
//	}
	
}

int Map::get_passability(int x, int y){
	
	return tileset[tiles[(sy+y)/TILE_HEIGHT][(sx+x)/TILE_WIDTH]];
}

int Map::get_tile(int x, int y){
	return tiles[(sy+y)/TILE_HEIGHT][(sx+x)/TILE_WIDTH];
}

int Map::get_sx(){
	return sx;
}

int Map::get_sy(){
	return sy;
}

void Map::set_sx(int x){
	sx = x;
}

void Map::set_sy(int y){
	sy = y;
}

Map::~Map(void){

}