Now lets build a small demo game!

examples/simple/main.cpp

@@ -24,16 +24,13 @@ layout (location = 0) in vec3 vertices;
 layout (location = 1) in vec3 normals;
 layout (location = 2) in vec2 texture_coords;
 
-// uniform mat4 model;
-// uniform mat4 view;
-// uniform mat4 projection;
+uniform vec4 pivot = vec4( 0.5, 0.5, 0.0, 1.0 );
 
 out vec2 tex_c;
 
 void main() {
     tex_c = texture_coords;
-    // gl_Position = projection * view * model * vec4(vertices, 1.0);
-     gl_Position = vec4(vertices, 1.0);
+    gl_Position = vec4(vertices, 1.0) + pivot;
 }
 )";
 
@@ -59,15 +56,6 @@ void main() {
 
 auto main() -> int {
 
-    auto checker_board = paradiso::Bitmap::empty(paradiso::Size{4, 4});
-
-    auto checker_board_2 = paradiso::Bitmap::from_data(
-        paradiso::Size{2, 2}, 
-        paradiso::RGBA::from_rgb(0x00, 0xFF, 0x00), // G
-        paradiso::RGBA::from_rgb(0xFF, 0x00, 0x00), // R
-        paradiso::RGBA::from_rgb(0x00, 0x00, 0xFF), // B
-        paradiso::RGBA::from_rgb(0xFF, 0x00, 0xFF));// C
-
     auto window = paradiso::Window();
 
     window.set_size(paradiso::Size{.width = 1280, .height = 720})
@@ -77,8 +65,13 @@ auto main() -> int {
 
     auto ctx = paradiso::Context{};
 
-    auto sprite = paradiso::Sprite{
-        .bitmap = checker_board_2
+    auto sprite = paradiso::Sprite {
+        .bitmap = paradiso::Bitmap::from_data(
+            paradiso::Size{2, 2},
+            paradiso::RGBA::from_rgba(0x00, 0xFF, 0x00, 0x80),  // G
+            paradiso::RGBA::from_rgba(0xFF, 0x00, 0x00, 0x80),  // R
+            paradiso::RGBA::from_rgba(0x00, 0x00, 0xFF, 0x80),  // B
+            paradiso::RGBA::from_rgba(0xFF, 0x00, 0xFF, 0x80)) // C
     };
 
     auto renderer = paradiso::Renderer{};
@@ -87,7 +80,7 @@ auto main() -> int {
 
     setup_shaders(shader);
 
-    uint8_t green_slider = 0x00;
+    uint8_t slider_value = 0xFF;
     bool want_close{false};
     int frame_counter = 10;
 
@@ -96,13 +89,13 @@ auto main() -> int {
             if (key == 'Q' || key == 256)
                 want_close = true;
             else if (key == 'A' ) {
-                green_slider += 10;
+                slider_value += 10;
             }
         });
 
     while (window.update([&](auto& w) -> bool {
 
-        ctx.set_clearcolor(paradiso::RGBA::from_rgb(0xFF, green_slider, 0x00));
+        ctx.set_clearcolor(paradiso::RGBA::from_rgb(slider_value, slider_value, slider_value));
         ctx.set_viewport(paradiso::Rectangle{
             .size = w.client_size()
         });

src/lib/include/paradiso/context.hpp

@@ -23,17 +23,18 @@
 #ifndef PARADISO_CONTEXT_HPP
 #define PARADISO_CONTEXT_HPP
 
-#include <paradiso/globals.hpp>
 #include <paradiso/geometry.hpp>
+#include <paradiso/globals.hpp>
 #include <paradiso/rgba.hpp>
 
-
 namespace paradiso {
 
 struct Context final {
 
     Context();
     ~Context();
+    Context(const Context&) = delete;
+    Context(Context&&) = default;
 
     Context& set_blend();
     Context& set_depth();
@@ -51,9 +52,8 @@ struct Context final {
 
     uint32_t get_error() const;
 
-    struct impl;
-
   private:
+    struct impl;
     std::unique_ptr<impl> impl_;
 };
 

src/lib/include/paradiso/rgba.hpp

@@ -49,19 +49,16 @@ struct RGBA final {
         rgba_f[3] = static_cast<float>(this->alpha()) / 0xFF;
     }
 
-    constexpr uint8_t red() const noexcept {
-        return (pixel & 0xFF000000) >> 24;
-    }
+    constexpr uint8_t red() const noexcept { return uint8_t(pixel & 0xFF); }
     constexpr uint8_t green() const noexcept {
-        return uint8_t((pixel & 0xFF0000) >> 16);
-    }
-    constexpr uint8_t blue() const noexcept {
         return uint8_t((pixel & 0xFF00) >> 8);
     }
-    constexpr uint8_t alpha() const noexcept { 
-        return uint8_t(pixel & 0xFF); 
+    constexpr uint8_t blue() const noexcept {
+        return uint8_t((pixel & 0xFF0000) >> 16);
+    }
+    constexpr uint8_t alpha() const noexcept {
+        return (pixel & 0xFF000000) >> 24;
     }
-
 
     constexpr RGBA& set_red(uint8_t v) noexcept {
         pixel = (pixel & 0x00FFFFFF) | (v << 24);

src/lib/src/window.cpp

@@ -246,8 +246,6 @@ struct Window::impl {
 
             glfwSetWindowMonitor(window_, nullptr, x, y, w, h, 0);
         }
-
-        //		glfwSetWindow
     }
 
     bool fullscreen() const { return glfwGetWindowMonitor(window_) != nullptr; }