diff options
| -rw-r--r-- | src/crepe/facade/SDLContext.cpp | 4 | ||||
| -rw-r--r-- | src/crepe/facade/SDLContext.h | 8 | ||||
| -rw-r--r-- | src/example/rendering_particle.cpp | 4 |
3 files changed, 9 insertions, 7 deletions
diff --git a/src/crepe/facade/SDLContext.cpp b/src/crepe/facade/SDLContext.cpp index cfe79d2..aaaec6b 100644 --- a/src/crepe/facade/SDLContext.cpp +++ b/src/crepe/facade/SDLContext.cpp @@ -1,4 +1,5 @@ #include <SDL2/SDL.h> +#include <SDL2/SDL_blendmode.h> #include <SDL2/SDL_image.h> #include <SDL2/SDL_keycode.h> #include <SDL2/SDL_rect.h> @@ -9,6 +10,7 @@ #include <cstddef> #include <cstdint> #include <functional> +#include <iostream> #include <memory> #include <stdexcept> @@ -215,6 +217,7 @@ SDLContext::texture_from_path(const std::string & path) { std::unique_ptr<SDL_Texture, std::function<void(SDL_Texture *)>> img_texture; img_texture = {tmp_texture, [](SDL_Texture * texture) { SDL_DestroyTexture(texture); }}; + SDL_SetTextureBlendMode(img_texture.get(), SDL_BLENDMODE_BLEND); return img_texture; } int SDLContext::get_width(const Texture & ctx) const { @@ -235,5 +238,6 @@ void SDLContext::set_rbg_texture(const Texture & texture, const uint8_t & r, } void SDLContext::set_alpha_texture(const Texture & texture, const uint8_t & alpha) { + SDL_SetTextureAlphaMod(texture.texture.get(), alpha); } diff --git a/src/crepe/facade/SDLContext.h b/src/crepe/facade/SDLContext.h index 8d63c43..1c67301 100644 --- a/src/crepe/facade/SDLContext.h +++ b/src/crepe/facade/SDLContext.h @@ -162,10 +162,7 @@ private: SDL_Rect get_dst_rect(const Sprite & sprite, const vec2 & pos, const Camera & cam, const vec2 & cam_pos, const double & img_scale) const; /** - * \brief changes the texture rbg values with the given parameters - * it sets the allowed color inside a image. So if all the colors are 255 (MAXIMUM) - * it will show the given texture. however if the one of the colors is reduced it will reduce the - * + * \brief Set an additional color value multiplied into render copy operations. * * \param texture the given texture to adjust * \param r Red color @@ -175,8 +172,9 @@ private: void set_rbg_texture(const Texture & texture, const uint8_t & r, const uint8_t & g, const uint8_t & b); + /** - * \brief Modifies the transparency of the given texture + * \brief Set an additional alpha value multiplied into render copy operations. * * \param texture modify the given texture alpha channel * \param alpha alpha channel diff --git a/src/example/rendering_particle.cpp b/src/example/rendering_particle.cpp index 3a12144..349d11e 100644 --- a/src/example/rendering_particle.cpp +++ b/src/example/rendering_particle.cpp @@ -28,7 +28,7 @@ int main(int argc, char * argv[]) { ParticleSystem psys{mgr}; AnimatorSystem asys{mgr}; - Color color(255, 255, 255, 255); + Color color(255, 255, 255, 100); auto img = Texture("asset/texture/test_ap43.png"); Sprite & test_sprite = game_object.add_component<Sprite>( @@ -59,7 +59,7 @@ int main(int argc, char * argv[]) { }); */ - auto & cam = game_object.add_component<Camera>(Color::WHITE, ivec2{1080, 720}, + auto & cam = game_object.add_component<Camera>(Color::RED, ivec2{1080, 720}, vec2{2000, 2000}, 1.0f); /* |