144 lines
2.9 KiB
C++
144 lines
2.9 KiB
C++
#include "xSprite.h"
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/** clean SDL objects */
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xSprite::~xSprite(){
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_mutex.try_lock();
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SDL_FreeSurface( _surface );
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_mutex.unlock();
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}
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/** color sprite */
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xSprite::xSprite(const int rgba[]){
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this->setSurface(rgba);
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}
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/** image sprite */
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xSprite::xSprite(const char *url){
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this->setSurface(url);
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}
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/** image sprite with clip */
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xSprite::xSprite(const char *url, SDL_Rect clip){
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this->setSurface(url);
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this->setClip(clip);
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}
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/** update sprite to rhb color */
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void xSprite::setSurface(const int rgba[]){
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_mutex.try_lock();
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if( _surface != NULL ){
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SDL_FreeSurface( _surface );
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_surface = NULL;
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}
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_surface = SDL_CreateRGBSurface(0, 0, 0, 32, rgba[0], rgba[1], rgba[2], rgba[3]);
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if( _surface == NULL ) {
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throw runtime_error("[xSprite] setSurface(rgba) -> NULL surface");
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}
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_mutex.unlock();
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}
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/** update sprite to image */
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void xSprite::setSurface(const char *url){
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_mutex.try_lock();
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if( _surface != NULL ){
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SDL_FreeSurface( _surface );
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_surface = NULL;
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}
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_surface = IMG_Load(url);
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if( _surface == NULL ) {
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throw runtime_error("[xSprite] setSurface(url) -> NULL surface");
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}
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_mutex.unlock();
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}
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/** copies an existing surface */
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void xSprite::setSurface(SDL_Surface *s){
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_mutex.try_lock();
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if( _surface != NULL ){
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SDL_FreeSurface( _surface );
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_surface = NULL;
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}
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_surface = s;
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if( _surface == NULL ) {
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throw runtime_error("[xSprite] setSurface(surface) -> NULL surface");
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}
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_mutex.unlock();
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}
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/** add new animation frame with new clip */
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void xSprite::addFrame(SDL_Rect clip){
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_mutex.try_lock();
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_frames.push_back(clip);
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_mutex.unlock();
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}
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/** clear every animation frames */
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void xSprite::clearFrames(){
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_mutex.try_lock();
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_frames.clear();
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_mutex.unlock();
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}
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/** set sprite clip and clears animation frames */
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void xSprite::setClip(SDL_Rect clip){
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_mutex.try_lock();
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_frames.clear();
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_frames.push_back(clip);
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_mutex.unlock();
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}
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/** set sprite projection */
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void xSprite::project(SDL_Rect dest){
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_mutex.try_lock();
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_projection = dest;
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_mutex.unlock();
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}
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/** draws to renderer */
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void xSprite::draw(SDL_Renderer* renderer){
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_mutex.try_lock();
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// no clip -> use surface dimensions
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if( _frames.size() <= 0 ){
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setClip( (SDL_Rect){0, 0, _surface->w, _surface->h} );
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}
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// only 1 clip -> use it
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if( _frames.size() == 1 ){
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_active_clip = 0;
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}
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SDL_RenderCopy(
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renderer,
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SDL_CreateTextureFromSurface(renderer, _surface),
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&_frames.at(_active_clip),
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&_projection
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);
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_mutex.unlock();
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}
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/** animation process */
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void xSprite::tick(const uint32_t ticks){
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_mutex.try_lock();
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uint32_t time_index = ticks / _animation_interval;
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_active_clip = time_index % _frames.size();
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_mutex.unlock();
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}
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/** orchestrate the animation */
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void xSprite::animate(uint32_t interval){
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_animation_interval = interval;
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xApplication::get()->addOrchestrable(this);
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}
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/** stops orchestrating the animation */
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void xSprite::freeze(){
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xApplication::get()->removeOrchestrable(this);
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} |