From cc05fdc7396532b329f30decde5583853da92a44 Mon Sep 17 00:00:00 2001
From: Matthew Kosarek <mattkae@protonmail.com>
Date: Sat, 27 Mar 2021 20:54:27 -0400
Subject: Drawing an ellipse

---
 frontend/shared_cpp/OrthographicRenderer.h | 49 +++++-------------------------
 1 file changed, 8 insertions(+), 41 deletions(-)

(limited to 'frontend/shared_cpp/OrthographicRenderer.h')

diff --git a/frontend/shared_cpp/OrthographicRenderer.h b/frontend/shared_cpp/OrthographicRenderer.h
index c72639e..0cdfc78 100644
--- a/frontend/shared_cpp/OrthographicRenderer.h
+++ b/frontend/shared_cpp/OrthographicRenderer.h
@@ -1,9 +1,12 @@
 #pragma once
 
+#include "WebglContext.h"
 #include "types.h"
 #include "Shader.h"
 #include "mathlib.h"
 
+struct WebglContext;
+
 struct OrthographicRenderer {
 	Mat4x4 projection;
 	uint32 shader;
@@ -18,7 +21,7 @@ struct OrthographicRenderer {
 		int32 model;
 	} uniforms;
 
-	void load();
+	void load(WebglContext* context);
 	void render();
 	void unload();
 };
@@ -28,50 +31,14 @@ struct OrthographicVertex {
 	Vector4 color;
 };
 
-template <uint32 N>
 struct OrthographicShape {
 	uint32 vao;
 	uint32 vbo;
-	OrthographicVertex vertices[N];
+	uint32 numVertices = 0;
+	OrthographicVertex* vertices = NULL;
 	Mat4x4 model;
 
-	void load(OrthographicRenderer* renderer);
+	void load(OrthographicVertex* vertices, uint32 numVertices, OrthographicRenderer* renderer);
 	void render(OrthographicRenderer* renderer);
 	void unload();
-};
-
-template <uint32 N>
-void OrthographicShape<N>::load(OrthographicRenderer* renderer) {
-	useShader(renderer->shader);
-
-	glGenVertexArrays(1, &vao);
-	glBindVertexArray(vao);
-
-	glGenBuffers(1, &vbo);
-	glBindBuffer(GL_ARRAY_BUFFER, vbo);
-	glBufferData(GL_ARRAY_BUFFER, N * sizeof(OrthographicVertex), &vertices[0], GL_STATIC_DRAW);
-
-	glEnableVertexAttribArray(renderer->attributes.position);
-	glVertexAttribPointer(renderer->attributes.position, 2, GL_FLOAT, GL_FALSE, sizeof(OrthographicVertex), (GLvoid *)0);
-
-	glEnableVertexAttribArray(renderer->attributes.color);
-	glVertexAttribPointer(renderer->attributes.color, 4, GL_FLOAT, GL_FALSE, sizeof(OrthographicVertex), (GLvoid *)offsetof(OrthographicVertex, color));
-
-	glBindBuffer(GL_ARRAY_BUFFER, 0);
-	glBindVertexArray(0);
-}
-
-template <uint32 N>
-void OrthographicShape<N>::render(OrthographicRenderer* renderer) {
-	setShaderMat4(renderer->uniforms.model, model);
-
-	glBindVertexArray(vao);
-	glDrawArrays(GL_TRIANGLES, 0, 3);
-	glBindVertexArray(0);
-}
-
-template <uint32 N>
-void OrthographicShape<N>::unload() {
-	glDeleteVertexArrays(1, &vao);
-	glDeleteBuffers(1, &vbo);
-}
\ No newline at end of file
+};
\ No newline at end of file
-- 
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