begin 3d

app/src/main/java/chess/view/DDDrender/VertexBuffer.java

@@ -0,0 +1,49 @@
+package chess.view.DDDrender;
+
+import static org.lwjgl.opengl.GL11.GL_FLOAT;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.lwjgl.opengl.GL30;
+
+public class VertexBuffer {
+	private int id;
+	private int dataStride;
+	List<VertexAttribPointer> vertexAttribs;
+
+	public VertexBuffer(float[] data, int stride) {
+		this.id = GL30.glGenBuffers();
+		this.dataStride = stride;
+		this.vertexAttribs = new ArrayList<VertexAttribPointer>();
+		Bind();
+		GL30.glBufferData(GL30.GL_ARRAY_BUFFER, data.length * 4, GL30.GL_STATIC_DRAW);
+		GL30.glBufferSubData(GL30.GL_ARRAY_BUFFER, 0, data);
+		Unbind();
+	}
+
+	public void Destroy() {
+		GL30.glDeleteBuffers(id);
+	}
+
+	public void Bind() {
+		GL30.glBindBuffer(GL30.GL_ARRAY_BUFFER, this.id);
+	}
+
+	public void Unbind() {
+		GL30.glBindBuffer(GL30.GL_ARRAY_BUFFER, 0);
+	}
+
+	public void AddVertexAttribPointer(int index, int coordinateSize, int offset) {
+		VertexAttribPointer pointer = new VertexAttribPointer(index, coordinateSize, offset);
+		this.vertexAttribs.add(pointer);
+	}
+
+	public void BindVertexAttribs() {
+		for (VertexAttribPointer vertexAttribPointer : vertexAttribs) {
+			GL30.glEnableVertexAttribArray(vertexAttribPointer.index());
+			GL30.glVertexAttribPointer(vertexAttribPointer.index(), vertexAttribPointer.size(), GL_FLOAT, false,
+					this.dataStride * 4, vertexAttribPointer.offset());
+		}
+	}
+}