Updates

engine/src/canvas.cpp

@@ -0,0 +1,55 @@
+#include <sophia/application.hpp>
+#include <sophia/canvas.hpp>
+
+namespace sophia {
+
+class Canvas::Impl {
+ public:
+  explicit Impl(Application* application) : application{application} {}
+
+  void triangle(glm::vec2 a, glm::vec2 b, glm::vec2 c,
+                glm::vec3 color = {1.0f, 1.0f, 1.0f}) {
+    std::vector<CanvasVertex> vertices{
+        {a, color},
+        {b, color},
+        {c, color},
+    };
+
+    application->pushModel(std::move(vertices), {});
+  }
+
+  void quad(glm::vec2 position, glm::vec2 size,
+            glm::vec3 color = {1.0f, 1.0f, 1.0f}) {
+    std::vector<CanvasVertex> vertices{
+        {position, color},
+        {position + glm::vec2(size.x, 0.f), color},
+        {position + size, color},
+        {position + glm::vec2(0.f, size.y), color},
+    };
+    std::vector<u32> indices{0, 1, 2, 2, 3, 0};
+
+    application->pushModel(std::move(vertices), std::move(indices));
+  }
+
+  void clear() { application->clearModels(); }
+
+ private:
+  Application* application;
+};
+
+Canvas::Canvas(Application* application)
+    : impl{std::make_unique<Impl>(application)} {}
+
+Canvas::~Canvas() = default;
+
+void Canvas::triangle(glm::vec2 a, glm::vec2 b, glm::vec2 c, glm::vec3 color) {
+  impl->triangle(a, b, c, color);
+}
+
+void Canvas::quad(glm::vec2 position, glm::vec2 size, glm::vec3 color) {
+  impl->quad(position, size, color);
+}
+
+void Canvas::clear() { impl->clear(); }
+
+}  // namespace sophia