xmario/xSDL/xSprite.cpp

#include "xSprite.h"

/** clean SDL objects */
xSprite::~xSprite(){
	_mutex.lock();
	SDL_FreeSurface( _surface );
	_mutex.unlock();
}

/** color sprite */
xSprite::xSprite(const int rgba[]){
	this->setSurface(rgba);
}

/** image sprite */
xSprite::xSprite(const char *url){
	this->setSurface(url);
}

/** image sprite with clip */
xSprite::xSprite(const char *url, SDL_Rect clip){
	this->setSurface(url);
	this->setClip(clip);
}
xSprite::xSprite(const char *url, int clip_x, int clip_y, int clip_w, int clip_h){
	this->setSurface(url);
	this->setClip(clip_x, clip_y, clip_w, clip_h);
}

/** image sprite with clip and projection */
xSprite::xSprite(const char *url, SDL_Rect clip, SDL_Rect projection){
	this->setSurface(url);
	this->setClip(clip);
	this->project(projection);
}
xSprite::xSprite(const char *url, int clip_x, int clip_y, int clip_w, int clip_h, int project_x, int project_y, int project_w, int project_h){
	this->setSurface(url);
	this->setClip(clip_x, clip_y, clip_w, clip_h);
	this->project(project_x, project_y, project_w, project_h);
}

/** update sprite to rhb color */
void xSprite::setSurface(const int rgba[]){
	_mutex.lock();
	if( _surface != NULL ){
		SDL_FreeSurface( _surface );
		_surface = NULL;
	}

	_surface = SDL_CreateRGBSurface(0, 0, 0, 32, rgba[0], rgba[1], rgba[2], rgba[3]);

	if( _surface == NULL ) {
		throw runtime_error("[xSprite] setSurface(rgba) -> NULL surface");
	}
	_mutex.unlock();
}



/** update sprite to image */
void xSprite::setSurface(const char *url){
	_mutex.lock();
	if( _surface != NULL ){
		SDL_FreeSurface( _surface );
		_surface = NULL;
	}

	_surface = IMG_Load(url);

	if( _surface == NULL ) {
		throw runtime_error("[xSprite] setSurface(url) -> NULL surface");
	}
	_mutex.unlock();
}

/** copies an existing surface */
void xSprite::setSurface(SDL_Surface *s){
	_mutex.lock();
	if( _surface != NULL ){
		SDL_FreeSurface( _surface );
		_surface = NULL;
	}

	_surface = s;

	if( _surface == NULL ) {
		throw runtime_error("[xSprite] setSurface(surface) -> NULL surface");
	}

	_mutex.unlock();
}
SDL_Surface* xSprite::surface(){
	_mutex.lock();
	SDL_Surface* surface = _surface;
	_mutex.unlock();
	return surface;
}

/** set sprite clip */
void xSprite::setClip(SDL_Rect clip){
	_mutex.lock();
	_clip = clip;
	_mutex.unlock();
}
void xSprite::setClip(int x, int y, int w, int h){
	setClip( (SDL_Rect){x, y, w, h} );
}

/** gets sprite clip */
SDL_Rect xSprite::clip(){
	_mutex.lock();
	const SDL_Rect clip = _clip;
	_mutex.unlock();
	return clip;
}

/** set sprite projection */
void xSprite::project(SDL_Rect dest){
	_mutex.lock();
	_projection = dest;
	_mutex.unlock();
}
void xSprite::project(int x, int y, int w, int h){
	project( (SDL_Rect){x, y, w, h} );
}
/** gets sprite projection */
SDL_Rect xSprite::projection(){
	_mutex.lock();
	const SDL_Rect projection = _projection;
	_mutex.unlock();
	return projection;
}

/** draws to renderer */
void xSprite::draw(SDL_Renderer* renderer){
	_mutex.lock();

	SDL_RenderCopy(
		renderer,
		SDL_CreateTextureFromSurface(renderer, _surface),
		&_clip,
		&_projection
	);
	_mutex.unlock();
}