#include "xSpriteGroup.h"

/** clean SDL objects */
xSpriteGroup::~xSpriteGroup(){
	_mutex.lock();
	_sprites.clear();
	_mutex.unlock();
}

/** default constructor */
xSpriteGroup::xSpriteGroup(){
}

/** adds a sprite to the group */
void xSpriteGroup::add(xSprite* sprite){
	_mutex.lock();
	_sprites.insert(sprite);
	_mutex.unlock();
}

/** removes a sprite from the group */
void xSpriteGroup::remove(xSprite* sprite){
	_mutex.lock();
	_sprites.erase(sprite);
	_mutex.unlock();
}

/** set absolute move for each sprite */
void xSpriteGroup::moveTo(int x, int y){
	_mutex.lock();
	_move.x = x;
	_move.y = y;
	_mutex.unlock();
}

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

	set<xSprite*>::iterator it;
	for( it = _sprites.begin() ; it != _sprites.end() ; it++ ){
		(*it)->draw(renderer);
	}
	_mutex.unlock();
}

/** animation process */
void xSpriteGroup::tick(const uint32_t ticks){
	_mutex.lock();
	uint32_t time_index  = ticks / _animation_interval;
	_active_sprite = time_index % _sprites.size();
	_mutex.unlock();
}

/** orchestrate the animation */
void xSpriteGroup::animate(uint32_t interval){
	_animation_interval = interval;
	xApplication::get()->addOrchestrable(this);
}

/** stops orchestrating the animation */
void xSpriteGroup::freeze(){
	xApplication::get()->removeOrchestrable(this);
}