Vertices: fix alpha blending when window background is transparent, add uniform for color, add position for vertices draw

2 files changed, 6 insertions, 2 deletions

diff --git a/src/graphics/Shader.cpp b/src/graphics/Shader.cpp
index 2bdc9b2..111f39d 100644
--- a/src/graphics/Shader.cpp
+++ b/src/graphics/Shader.cpp
@@ -34,6 +34,10 @@ namespace mgl {
         return mgl_shader_program_set_uniform_vec2f(&shader_program, name, { value.x, value.y }) == 0;
     }
 
+    bool Shader::set_uniform(const char *name, Color color) {
+        return mgl_shader_program_set_uniform_color(&shader_program, name, { color.r, color.g, color.b, color.a }) == 0;
+    }
+
     bool Shader::is_valid() const {
         return shader_program.id != 0;
     }
diff --git a/src/window/Window.cpp b/src/window/Window.cpp
index 0e80456..8cfc28e 100644
--- a/src/window/Window.cpp
+++ b/src/window/Window.cpp
@@ -53,13 +53,13 @@ namespace mgl {
             Shader::use(nullptr);
     }
     
-    void Window::draw(const Vertex *vertices, size_t vertex_count, PrimitiveType primitive_type, Shader *shader) {
+    void Window::draw(const Vertex *vertices, size_t vertex_count, PrimitiveType primitive_type, mgl::vec2f position, Shader *shader) {
         // TODO: Make the opengl context active for this thread and window, if it already isn't
         if(shader)
             Shader::use(shader);
 
         mgl_context *context = mgl_get_context();
-        mgl_vertices_draw(context, (const mgl_vertex*)vertices, vertex_count, (mgl_primitive_type)primitive_type, { 0.0f, 0.0f });
+        mgl_vertices_draw(context, (const mgl_vertex*)vertices, vertex_count, (mgl_primitive_type)primitive_type, { position.x, position.y });
 
         if(shader)
             Shader::use(nullptr);