Allow color modulation of sprites, refactor renderer init

src/include/Dengine/Renderer.h

@@ -35,15 +35,15 @@ void renderer_backgroundTiles(Renderer *const renderer, const v2 tileSize,
 #endif
 
 void renderer_string(Renderer *const renderer, Font *const font,
-                     const char *const string, v2 pos, f32 rotate, v3 color);
+                     const char *const string, v2 pos, f32 rotate, v4 color);
 
 void renderer_debugString(Renderer *const renderer, Font *const font,
                           const char *const string);
 
 void renderer_entity(Renderer *renderer, v4 cameraBounds, Entity *entity,
-                     f32 dt, f32 rotate, v3 color);
+                     f32 dt, f32 rotate, v4 color);
 
-void renderer_object(Renderer *renderer, v2 pos, v2 size, f32 rotate, v3 color,
+void renderer_object(Renderer *renderer, v2 pos, v2 size, f32 rotate, v4 color,
                      Texture *tex);
 
 RenderQuad renderer_createQuad(Renderer *renderer, v4 quadRect, v4 texRect,

src/include/Dengine/Shader.h

@@ -17,6 +17,8 @@ void shader_uniformSet1i(Shader *const shader, const GLchar *name,
                          const GLuint data);
 void shader_uniformSetMat4fv(Shader *const shader, const GLchar *name,
                              mat4 data);
+void shader_uniformSetVec4f(Shader *const shader, const GLchar *name,
+                            v4 data);
 
 void shader_use(const Shader *const shader);