color paremeter in sprite works

3 files changed, 39 insertions, 0 deletions

diff --git a/src/crepe/facade/SDLContext.cpp b/src/crepe/facade/SDLContext.cpp
index 378ccee..4bc4cf8 100644
--- a/src/crepe/facade/SDLContext.cpp
+++ b/src/crepe/facade/SDLContext.cpp
@@ -6,10 +6,12 @@
 #include <SDL2/SDL_video.h>
 #include <cmath>
 #include <cstddef>
+#include <cstdint>
 #include <functional>
 #include <iostream>
 #include <memory>
 #include <string>
+#include <sys/types.h>
 #include <utility>
 
 #include "../api/Sprite.h"
@@ -110,6 +112,13 @@ void SDLContext::present_screen() {
 	SDL_RenderPresent(this->game_renderer.get());
 }
 
+void SDLContext::set_rbg_texture(const std::shared_ptr<Texture>& texture, const uint8_t& r, const uint8_t& g, const uint8_t& b){
+	SDL_SetTextureColorMod(texture->texture.get(), r, g, b);
+}
+void SDLContext::set_alpha_texture(const std::shared_ptr<Texture>& texture, const uint8_t& alpha){
+	SDL_SetTextureAlphaMod(texture->texture.get(), alpha	);
+}
+
 void SDLContext::draw(const Sprite & sprite, const Transform & transform,
 					  const Camera & cam) {
 
@@ -117,6 +126,11 @@ void SDLContext::draw(const Sprite & sprite, const Transform & transform,
 		= (SDL_RendererFlip) ((SDL_FLIP_HORIZONTAL * sprite.flip.flip_x)
 							  | (SDL_FLIP_VERTICAL * sprite.flip.flip_y));
 
+	sprite.sprite_image->texture.get();
+
+	this->set_rbg_texture(sprite.sprite_image, sprite.color.r, sprite.color.g, sprite.color.b);
+	this->set_alpha_texture(sprite.sprite_image, sprite.color.a);
+
 	double adjusted_x = (transform.position.x - cam.x) * cam.zoom;
 	double adjusted_y = (transform.position.y - cam.y) * cam.zoom;
 	double adjusted_w = sprite.sprite_rect.w * transform.scale * cam.zoom;
@@ -129,6 +143,7 @@ void SDLContext::draw(const Sprite & sprite, const Transform & transform,
 		.h = sprite.sprite_rect.h,
 	};
 
+
 	SDL_Rect dstrect = {
 		.x = static_cast<int>(adjusted_x),
 		.y = static_cast<int>(adjusted_y),
diff --git a/src/crepe/facade/SDLContext.h b/src/crepe/facade/SDLContext.h
index c4392bd..5b5ee3e 100644
--- a/src/crepe/facade/SDLContext.h
+++ b/src/crepe/facade/SDLContext.h
@@ -3,6 +3,7 @@
 #include <SDL2/SDL_keycode.h>
 #include <SDL2/SDL_render.h>
 #include <SDL2/SDL_video.h>
+#include <cstdint>
 #include <functional>
 #include <memory>
 #include <string>
@@ -145,6 +146,28 @@ private:
 	 */
 	void camera(const Camera & camera);
 
+	/**
+	 * \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 
+	 *
+	 *
+	 * \param  texture the given texture to adjust 
+	 * \param  r Red color 
+	 * \param  g Green color
+	 * \param  b Blue color
+	 */
+	void set_rbg_texture(const std::shared_ptr<Texture>& texture, const uint8_t& r, const uint8_t& g, const uint8_t& b);
+
+
+	/**
+	 * \brief Modifies the transparency of the given texture
+	 *
+	 * \param texture modify the given texture alpha channel
+	 * \param  alpha alpha channel
+	 */
+	void set_alpha_texture(const std::shared_ptr<Texture>& texture, const uint8_t& alpha);
+
 private:
 	//! sdl Window
 	std::unique_ptr<SDL_Window, std::function<void(SDL_Window *)>> game_window;
diff --git a/src/crepe/system/RenderSystem.h b/src/crepe/system/RenderSystem.h
index 468f79b..feefa09 100644
--- a/src/crepe/system/RenderSystem.h
+++ b/src/crepe/system/RenderSystem.h
@@ -59,6 +59,7 @@ private:
 
 	void render_normal(const Sprite &, const Transform & tm);
 
+
 	/**
 	 * \todo Include color handling for sprites.
 	 * \todo Add text rendering using SDL_ttf for text components.