From 7e06a916e6a385c37075abcb83d14b8c1fef7bc0 Mon Sep 17 00:00:00 2001
From: hachem <im@hachem.wtf>
Date: Tue, 12 Aug 2025 18:41:26 +0200
Subject: feat: camera

---
 src/rendering/renderer.cpp | 45 ++++++++++++++++++++++-----------------------
 src/rendering/renderer.h   | 34 ++++++++++++++++++----------------
 2 files changed, 40 insertions(+), 39 deletions(-)

(limited to 'src/rendering')

diff --git a/src/rendering/renderer.cpp b/src/rendering/renderer.cpp
index 1da5034..19917a6 100644
--- a/src/rendering/renderer.cpp
+++ b/src/rendering/renderer.cpp
@@ -3,10 +3,12 @@
 #include <memory>
 #include <glm/gtc/matrix_transform.hpp>
 
-namespace Donut {
-
-    Scope<RendererAPI> RendererAPI::create() {
-        switch (s_api) {
+namespace Donut 
+{
+    Scope<RendererAPI> RendererAPI::create()
+     {
+        switch (s_api)
+        {
             case API::OpenGL:
                 return std::make_unique<OpenGLRendererAPI>();
             default:
@@ -16,32 +18,28 @@ namespace Donut {
 
     RendererAPI::API RendererAPI::s_api = RendererAPI::API::OpenGL;
 
-    Renderer::SceneData* Renderer::s_scene_data = new Renderer::SceneData;
-
-    void Renderer::init() {
+    void Renderer::init()
+    {
         RenderCommand::init();
+        RenderCommand::enable_depth_test();
     }
 
-    void Renderer::shutdown() {
-        delete s_scene_data;
+    void Renderer::shutdown()
+    {
     }
 
-    void Renderer::on_window_resize(uint32_t width, uint32_t height) {
+    void Renderer::on_window_resize(uint32_t width, uint32_t height)
+    {
         RenderCommand::set_viewport(0, 0, width, height);
     }
 
-    void Renderer::begin_scene() {
-        s_scene_data->ViewProjectionMatrix = glm::ortho(-1.0f, 1.0f, -1.0f, 1.0f, -1.0f, 1.0f);
-    }
-
-    void Renderer::end_scene() {
-    }
-
     void Renderer::submit(const std::shared_ptr<Shader>& shader, 
                          const std::shared_ptr<VertexArray>& vertex_array,
-                         const glm::mat4& transform) {
+                         const glm::mat4& transform,
+                         const glm::mat4& view_projection) 
+    {
         shader->bind();
-        shader->set_mat4("u_ViewProjection", s_scene_data->ViewProjectionMatrix);
+        shader->set_mat4("u_ViewProjection", view_projection);
         shader->set_mat4("u_Transform", transform);
 
         vertex_array->bind();
@@ -50,12 +48,13 @@ namespace Donut {
 
     Scope<RendererAPI> RenderCommand::s_renderer_api = RendererAPI::create();
 
-    void Renderer::set_clear_color(const glm::vec4& color) {
+    void Renderer::set_clear_color(const glm::vec4& color)
+    {
         RenderCommand::set_clear_color(color);
     }
 
-    void Renderer::clear() {
+    void Renderer::clear()
+    {
         RenderCommand::clear();
     }
-
-}
+};
diff --git a/src/rendering/renderer.h b/src/rendering/renderer.h
index fd61914..09e9521 100644
--- a/src/rendering/renderer.h
+++ b/src/rendering/renderer.h
@@ -33,6 +33,7 @@ namespace Donut
         virtual void set_viewport(uint32_t x, uint32_t y, uint32_t width, uint32_t height) = 0;
         virtual void set_clear_color(const glm::vec4& color) = 0;
         virtual void clear() = 0;
+        virtual void enable_depth_test() = 0;
 
         virtual void draw_indexed(const std::shared_ptr<VertexArray>& vertex_array, uint32_t index_count = 0) = 0;
 
@@ -46,23 +47,33 @@ namespace Donut
     class RenderCommand 
     {
     public:
-        inline static void init() {
+        inline static void init() 
+        {
             s_renderer_api->init();
         }
 
-        inline static void set_viewport(uint32_t x, uint32_t y, uint32_t width, uint32_t height) {
+        inline static void set_viewport(uint32_t x, uint32_t y, uint32_t width, uint32_t height)
+        {
             s_renderer_api->set_viewport(x, y, width, height);
         }
 
-        inline static void set_clear_color(const glm::vec4& color) {
+        inline static void set_clear_color(const glm::vec4& color)
+        {
             s_renderer_api->set_clear_color(color);
         }
 
-        inline static void clear() {
+        inline static void clear()
+        {
             s_renderer_api->clear();
         }
 
-        inline static void draw_indexed(const std::shared_ptr<VertexArray>& vertex_array, uint32_t index_count = 0) {
+        inline static void enable_depth_test()
+        {
+            s_renderer_api->enable_depth_test();
+        }
+
+        inline static void draw_indexed(const std::shared_ptr<VertexArray>& vertex_array, uint32_t index_count = 0)
+        {
             s_renderer_api->draw_indexed(vertex_array, index_count);
         }
 
@@ -78,23 +89,14 @@ namespace Donut
 
         static void on_window_resize(uint32_t width, uint32_t height);
 
-        static void begin_scene();
-        static void end_scene();
-
         static void submit(const std::shared_ptr<Shader>& shader, 
                            const std::shared_ptr<VertexArray>& vertex_array,
-                           const glm::mat4& transform = glm::mat4(1.0f));
+                           const glm::mat4& transform,
+                           const glm::mat4& view_projection);
 
         static void set_clear_color(const glm::vec4& color);
         static void clear();
 
         inline static RendererAPI::API get_api() { return RendererAPI::get_api(); }
-    private:
-        struct SceneData 
-        {
-            glm::mat4 ViewProjectionMatrix;
-        };
-
-        static SceneData* s_scene_data;
     };
 };
-- 
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