New renderer is feature-complete

docs/tasks/refactoring.todo

@@ -5,6 +5,7 @@
     ☐ Binary serializeable
 
 Renderer rewrite:
+    ☐ Re-integrate the new renderer into the editor
     ✔ Add double buffer to the VertexBuffer class with a Flush method to send the verts to the gpu @high @done(22-08-29 15:14)
     ✔ Add Draw method to the VertexBuffer class @high @done(22-08-29 15:06)
     ✔ Batch rendering minimally working @done(22-08-12 19:19)
@@ -22,9 +23,9 @@ Renderer rewrite:
             ✔ Generate single conposite texture of all font bitmap data @done(22-08-18 16:13)
         ✔ DrawString @done(22-08-18 16:14)
 
-    ☐ DrawElipse @low
-        ☐ Elipse Shader
-        ☐ Elipse Batch data
+    ✔ DrawElipse @low @done(22-08-30 14:26)
+        ✔ Elipse Shader @done(22-08-30 14:26)
+        ✔ Elipse Batch data @done(22-08-30 14:26)
 
     ✔ DrawLine @low @done(22-08-29 15:14)
         ✔ Line Shader @done(22-08-22 19:46)

src/renderer/renderer2D.cpp

@@ -269,12 +269,30 @@ namespace lunarium
 
     void Renderer2D::DrawBox(Rectangle box, Color color, float thickness, float angle)
     {
-        // TODO: Use DrawLine to make a box
+        DrawLine(glm::vec2(box.left(), box.top()), glm::vec2(box.right(), box.top()), color, thickness, angle);
+        DrawLine(glm::vec2(box.right(), box.top()), glm::vec2(box.right(), box.bottom()), color, thickness, angle);
+        DrawLine(glm::vec2(box.right(), box.bottom()), glm::vec2(box.left(), box.bottom()), color, thickness, angle);
+        DrawLine(glm::vec2(box.left(), box.bottom()), glm::vec2(box.left(), box.top()), color, thickness, angle);
     }   
 
     void Renderer2D::DrawEllipse(glm::vec2 center_point, glm::vec2 radii, Color color, int resolution, float thickness, float angle)
     {
-        // TODO: Use DrawLine to make ellipse
+        float stride = 362.0f / resolution;
+        float cur_deg = 0.0f;
+        float rad = cur_deg * 3.14159f / 180.0f;
+        glm::vec2 prev_point = glm::vec2(center_point.x + (radii.x * cos(rad)), center_point.y + (radii.y * sin(rad)));
+        glm::vec2 first_point = prev_point;
+        cur_deg += stride;
+        for (int i = 1; i <= resolution; i++, cur_deg += stride)
+        {
+            rad = cur_deg * 3.14159f / 180.0f;
+            glm::vec2 cur_point(center_point.x + (radii.x * cos(rad)), center_point.y + (radii.y * sin(rad)));
+            
+            DrawLine(prev_point, cur_point, color, thickness, angle);
+            prev_point = cur_point;
+        }
+
+        DrawLine(prev_point, first_point, color, thickness, angle);
     }
 
     void Renderer2D::DrawEllipseFilled(glm::vec2 center_point, glm::vec2 radii, Color color, int resolution, float angle)

src/renderer/renderer2D.h

@@ -52,11 +52,11 @@ namespace lunarium
         /// sub_texture_area is the area of the texture to draw
         void DrawQuad(Rectangle quad, Color color, Texture* texture = nullptr, float angle = 0.0f, Rectangle sub_texture_area = Rectangle(-1, -1, -1, -1));
         void DrawLine(glm::vec2 point_a, glm::vec2 point_b, Color color, float thickness = 1.0f, float angle = 0.0f);
-        void DrawBox(Rectangle box, Color color, float thickness = 1.0f, float angle = 0.0f);
+        void DrawBox(Rectangle box, Color color, float thickness = 1.5f, float angle = 0.0f);
 
         /// Resolution is the number of sides the ellipse will have.
         /// So small numbers can be used to make ngon shapes
-        void DrawEllipse(glm::vec2 center_point, glm::vec2 radii, Color color, int resolution = 50, float thickness = 1.0f, float angle = 0.0f);
+        void DrawEllipse(glm::vec2 center_point, glm::vec2 radii, Color color, int resolution = 50, float thickness = 1.5f, float angle = 0.0f);
         
         /// Resolution is the number of sides the ellipse will have.
         /// So small numbers can be used to make ngon shapes

src/run_modes/testbed/scenes/simple_render_scene.cpp

@@ -252,6 +252,7 @@ namespace lunarium
         {
             case ShapeMode::Boxes: 
             { 
+                g.DrawBox(Rectangle(300, 300, 50, 50), Color::Green());
 
             } break;
 
@@ -268,7 +269,8 @@ namespace lunarium
 
             case ShapeMode::Ellipses: 
             { 
-                g.DrawEllipseFilled(glm::vec2(300.0f, 300.0f), glm::vec2(mEllipseRadii[0], mEllipseRadii[1]), Color::Blue(), mEllipseResolution);
+                g.DrawEllipseFilled(glm::vec2(350.0f, 300.0f), glm::vec2(mEllipseRadii[0], mEllipseRadii[1]), Color::Blue(), mEllipseResolution);
+                g.DrawEllipse(glm::vec2(800.0f, 300.0f), glm::vec2(mEllipseRadii[0], mEllipseRadii[1]), Color::Red(), mEllipseResolution);
 
             } break;
         }