C:/Documents and Settings/mtauraso/Desktop/proj3/projectX/Sprite.cpp

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#include "glfuncs.h"
#include "Screen.h"
#include "Sprite.h"
#include "Parser.h"
#include "AnimatedSprite.h"
#include "ShowOneSprite.h"

using namespace std;

map<string,Sprite *> Sprite::SPRITES;

Sprite* Sprite::instance()
{
        return this;
}

Sprite::Sprite(std::string filename)
:_filename(filename),_direction(LEFT)
{
        _hTexture = glfuncs::instance()->loadTexture(_filename,_coords,_rect);

        // By reversing the [0] and [2] texture mapping coordinates you make the texture face the other direction
        /*
        _coords[0] = 1;
        _coords[1] = 0;
        _coords[2] = 0;
        _coords[3] = 1;
        */
}

Sprite::Sprite(std::string filename, int width, int height)
:_filename(filename)
{
        _hTexture = glfuncs::instance()->loadTexture(_filename,_coords,_rect);
        _rect.w = width;
        _rect.h = height;
}

Sprite::Sprite(Sprite *sprite)
{
        _filename = sprite->_filename;
        _rect = sprite->_rect;
        _direction = _direction;
}

void Sprite::draw(int x, int y, bool origin)
{
        _rect.x+=x;
        _rect.y+=y;
        if(_direction == RIGHT) {
                double temp = _coords[0];
                _coords[0] = _coords[2];
                _coords[2] = temp;
        }
        
        if(origin == LEVEL)
                Screen::instance()->drawLevel(_hTexture,_coords,_rect);
        else if(origin == SCREEN)
                Screen::instance()->drawScreen(_hTexture,_coords,_rect);
        
        if(_direction == RIGHT) {
                double temp = _coords[0];
                _coords[0] = _coords[2];
                _coords[2] = temp;
        }
        _rect.x-=x;
        _rect.y-=y;
}

Sprite* Sprite::loadSprite( std::string filename )
{
        if(SPRITES.find(filename) != SPRITES.end()) {
                //cerr << filename << endl;
                return SPRITES[filename]->instance();
        }

        string ext = filename.substr(filename.size() - 3,3);
        if( ext == "png" )
        {
                Sprite *sprite = new Sprite( filename );
                SPRITES[filename] = sprite;
                return sprite;
        }
        else if ( ext == "txt" )
        {
                Sprite *sprite = Sprite::loadText( filename );
                SPRITES[filename] = sprite;
                return sprite;
        }
        
        cerr << "Invalid sprite extension" << endl;
        return NULL;
}

Sprite* Sprite::loadText( std::string filename )
{
        List *spriteInfo = Parser::parse(filename);

        if(spriteInfo->firstString() == "animated") {
                Sprite *newSprite = new AnimatedSprite(filename, spriteInfo->rest());
                delete spriteInfo;
                return newSprite;
        }
        else if(spriteInfo->firstString() == "showone") {
                Sprite *newSprite = new ShowOneSprite(filename, spriteInfo->rest());
                delete spriteInfo;
                return newSprite;
        }
        else {
                cerr << "Sprite type " << spriteInfo->firstString() << " unknown." << endl;
                delete spriteInfo;
                return NULL;
        }
}

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