Added source rectangle option for texture setting

sdlpp/sdlpp_rectrenderer.cpp

@@ -13,9 +13,18 @@ RectangleRender::RectangleRender( double x, double y, double w, double h,
 }
 RectangleRender::RectangleRender( double x, double y, double w, double h,
                                   const std::shared_ptr< Renderer > &r,
-                                  const std::shared_ptr< Texture > &t )
+                                  const std::shared_ptr< Texture > &t,
+                                  int source_x, int source_y, int source_width,
+                                  int source_height )
         : RectangleRender( x, y, w, h, r ) {
-    setTexture( t );
+    setTexture( t, source_x, source_y, source_width, source_height );
+}
+RectangleRender::RectangleRender( double x, double y, double w, double h,
+                                  const std::shared_ptr< Renderer > &r,
+                                  const std::shared_ptr< Texture > &t,
+                                  SDL_Rect source_rect )
+        : RectangleRender( x, y, w, h, r ) {
+    setTexture( t, source_rect );
 }
 RectangleRender::RectangleRender( double x, double y, double w, double h,
                                   const std::shared_ptr< Renderer > &r,
@@ -29,6 +38,20 @@ RectangleRender::RectangleRender( double x, double y, double w, double h,
         color = img_or_color;
     }
 }
+RectangleRender::RectangleRender( double x, double y, double w, double h,
+                                  const std::shared_ptr< Renderer > &r,
+                                  const std::string &img, int source_x,
+                                  int source_y, int source_width,
+                                  int source_height )
+        : RectangleRender( x, y, w, h, r ) {
+    setTexture( img, source_x, source_y, source_width, source_height );
+}
+RectangleRender::RectangleRender( double x, double y, double w, double h,
+                                  const std::shared_ptr< Renderer > &r,
+                                  const std::string &img, SDL_Rect source_rect )
+        : RectangleRender( x, y, w, h, r ) {
+    setTexture( img, source_rect );
+}
 void RectangleRender::setColor( const std::string &color ) {
     if ( !polygon ) {
         polygon = std::make_shared< RectColider >( 0, 0, 1, 1 );

sdlpp/sdlpp_rectrenderer.hpp

@@ -15,10 +15,22 @@ public:
                      const std::shared_ptr< Renderer > &r );
     RectangleRender( double x, double y, double w, double h,
                      const std::shared_ptr< Renderer > &r,
-                     const std::shared_ptr< Texture > &t );
+                     const std::shared_ptr< Texture > &t, int source_x,
+                     int source_y, int source_width, int source_height );
+    RectangleRender( double x, double y, double w, double h,
+                     const std::shared_ptr< Renderer > &r,
+                     const std::shared_ptr< Texture > &t,
+                     SDL_Rect source_rect = { -1, -1, -1, -1 } );
     RectangleRender( double x, double y, double w, double h,
                      const std::shared_ptr< Renderer > &r,
                      const std::string &img_or_color, bool is_polygon = false );
+    RectangleRender( double x, double y, double w, double h,
+                     const std::shared_ptr< Renderer > &r,
+                     const std::string &img, int source_x,
+                     int source_y, int source_width, int source_height );
+    RectangleRender( double x, double y, double w, double h,
+                     const std::shared_ptr< Renderer > &r,
+                     const std::string &img, SDL_Rect source_rect );
     virtual void setColor( const std::string &color ) override;
     virtual void setOutlineColor( const std::string &color ) override;
     virtual void specialAction( int /*UNUSED*/ ) override {}

sdlpp/sdlpp_renderobject.cpp

@@ -2,13 +2,21 @@
 #include <cmath>
 
 namespace SDLPP {
+bool RenderObject::entireTexture() {
+    return src_rect.x == -1 || src_rect.y == -1 || src_rect.w == -1 ||
+           src_rect.h == -1;
+}
 void RenderObject::render() {
     if ( !getHidden() ) {
         if ( polygon )
             polygon->render( *renderer );
-        if ( texture != NULL )
+        if ( texture != NULL ) {
+            SDL_Rect *src = NULL;
+            if(!entireTexture())
+                src = &src_rect;
             SDL_RenderCopy( renderer->getRendererPtr(),
-                            texture->getTexturePtr(), NULL, &rect );
+                            texture->getTexturePtr(), src, &rect );
+        }
         if ( hasCollisions() && renderer->getRenderColiders() ) {
             for ( const auto &col : getCollisions() )
                 col->render( *renderer, colider_color );
@@ -46,11 +54,25 @@ const std::vector< std::shared_ptr< CollisionPolygon > > &
 RenderObject::getCollisions() const {
     return collisions;
 }
-void RenderObject::setTexture( const std::shared_ptr< Texture > &t ) {
+void RenderObject::setTexture( const std::shared_ptr< Texture > &t,
+                               SDL_Rect source_rect ) {
     texture = t;
+    src_rect = source_rect;
 }
-void RenderObject::setTexture( const std::string &img_path ) {
+void RenderObject::setTexture( const std::shared_ptr< Texture > &t,
+                               int source_x, int source_y, int source_width,
+                               int source_height ) {
+    setTexture( t, { source_x, source_y, source_width, source_height } );
+}
+void RenderObject::setTexture( const std::string &img_path,
+                               SDL_Rect source_rect ) {
     texture = std::make_shared< Texture >( renderer, img_path );
+    src_rect = source_rect;
+}
+void RenderObject::setTexture( const std::string &img_path, int source_x,
+                               int source_y, int source_width,
+                               int source_height ) {
+    setTexture( img_path, { source_x, source_y, source_width, source_height } );
 }
 void RenderObject::setTexture( Font &font, const std::string &text,
                                const std::string &color,
@@ -58,6 +80,7 @@ void RenderObject::setTexture( Font &font, const std::string &text,
                                int outline_size ) {
     texture = std::make_shared< Texture >( renderer, font, text, color,
                                            outline_color, outline_size );
+    src_rect = { -1, -1, -1, -1 };
 }
 void RenderObject::unsetTexture() {
     texture.reset();

sdlpp/sdlpp_renderobject.hpp

@@ -42,8 +42,16 @@ public:
     bool hasCollisions() const;
     const std::vector< std::shared_ptr< CollisionPolygon > > &
     getCollisions() const;
-    virtual void setTexture( const std::shared_ptr< Texture > &t );
+    virtual void setTexture( const std::shared_ptr< Texture > &t, int source_x,
-    virtual void setTexture( const std::string &img_path );
+                             int source_y, int source_width,
+                             int source_height );
+    virtual void setTexture( const std::shared_ptr< Texture > &t,
+                             SDL_Rect source_rect = { -1, -1, -1, -1 } );
+    virtual void setTexture( const std::string &img_path, int source_x,
+                             int source_y, int source_width,
+                             int source_height );
+    virtual void setTexture( const std::string &img_path,
+                             SDL_Rect source_rect = { -1, -1, -1, -1 } );
     virtual void setTexture( Font &font, const std::string &text,
                              const std::string &color = "FFFFFF",
                              const std::string &outline_color = "000000",
@@ -81,6 +89,7 @@ public:
 
 protected:
     virtual void copyTo( std::shared_ptr< RenderObject > other );
+    bool entireTexture();
     std::vector< std::shared_ptr< CollisionPolygon > > collisions;
     std::shared_ptr< Texture > texture;
     std::shared_ptr< Texture > cur_texture;
@@ -98,6 +107,7 @@ protected:
     bool is_static = true;
     bool centerx = false;
     SDL_Rect rect;
+    SDL_Rect src_rect = { -1, -1, -1, -1 };
 
 private:
     void setSceneID( int id );