From 180aad05decc7eefa87e4e45d6747c48f40e5361 Mon Sep 17 00:00:00 2001
From: Tyler Murphy <tylerm@tylerm.dev>
Date: Mon, 17 Apr 2023 12:12:01 -0400
Subject: save

---
 .../tylermurphy/Minecraft/Render/Data/Mesh.java    | 82 ++++++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100755 src/main/java/net/tylermurphy/Minecraft/Render/Data/Mesh.java

(limited to 'src/main/java/net/tylermurphy/Minecraft/Render/Data/Mesh.java')

diff --git a/src/main/java/net/tylermurphy/Minecraft/Render/Data/Mesh.java b/src/main/java/net/tylermurphy/Minecraft/Render/Data/Mesh.java
new file mode 100755
index 0000000..093a58e
--- /dev/null
+++ b/src/main/java/net/tylermurphy/Minecraft/Render/Data/Mesh.java
@@ -0,0 +1,82 @@
+package net.tylermurphy.Minecraft.Render.Data;
+
+import org.lwjgl.BufferUtils;
+import org.lwjgl.opengl.GL11;
+import org.lwjgl.opengl.GL15;
+import org.lwjgl.opengl.GL20;
+import org.lwjgl.opengl.GL30;
+
+import java.io.Serializable;
+import java.nio.FloatBuffer;
+import java.nio.IntBuffer;
+import java.util.ArrayList;
+import java.util.List;
+
+public class Mesh implements Serializable {
+	
+	private static final long serialVersionUID = -8137846451745511907L;
+
+	public static List<Integer> vaos = new ArrayList<>();
+	public static List<Integer> vbos = new ArrayList<>();
+
+	private final int id;
+	private final int vertexCount;
+	private int counter = 0;
+
+	public Mesh(int vertexCount){
+		this.id = GL30.glGenVertexArrays();
+		vaos.add(id);
+		this.vertexCount = vertexCount;
+		GL30.glBindVertexArray(id);
+	}
+
+	public Mesh store(float[] data, int coordinateSize){
+		int id = GL15.glGenBuffers();
+		vbos.add(id);
+		GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, id);
+		FloatBuffer buffer = BufferUtils.createFloatBuffer(data.length);
+		buffer.put(data);
+		buffer.flip();
+		GL15.glBufferData(GL15.GL_ARRAY_BUFFER, buffer, GL15.GL_STATIC_DRAW);
+		GL20.glVertexAttribPointer(counter,coordinateSize, GL11.GL_FLOAT,false,0,0);
+		GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);
+		counter++;
+		return this;
+	}
+
+	public Mesh finish(){
+		GL30.glBindVertexArray(0);
+		return this;
+	}
+
+	public void delete(){
+		IntBuffer amount = BufferUtils.createIntBuffer(1);
+		GL20.glGetIntegerv(GL20.GL_MAX_VERTEX_ATTRIBS, amount);
+		GL30.glBindVertexArray(id);
+		for (int i=0; i < amount.get(0); i++) {
+			IntBuffer vbo = BufferUtils.createIntBuffer(1);
+			GL20.glGetVertexAttribiv(i, GL20.GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING, vbo);
+			if(vbo.get(0) > 0) {
+				GL15.glDeleteBuffers(vbo.get(0));
+			}
+		}
+		GL30.glDeleteVertexArrays(id);
+	}
+
+	public int getID() {
+		return id;
+	}
+	public int getVertexCount() {
+		return vertexCount;
+	}
+
+	public static void cleanUp() {
+		for(int vao:vaos){
+			GL30.glDeleteVertexArrays(vao);
+		}
+		for(int vbo:vbos){
+			GL30.glDeleteBuffers(vbo);
+		}
+	}
+
+}
-- 
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