add 2D rendering to blockgame

1 files changed, 24 insertions, 0 deletions

diff --git a/blockgame/mesh.js b/blockgame/mesh.js
new file mode 100644
index 0000000..0e39fd0
--- /dev/null
+++ b/blockgame/mesh.js
@@ -0,0 +1,24 @@
+
+export class Mesh {
+	constructor(gl, dims) {
+		this.posbuffer = gl.createBuffer();
+		this.dimensions = dims;
+	}
+
+	add_positions(gl, positions) {
+		gl.bindBuffer(gl.ARRAY_BUFFER, this.posbuffer);
+		gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(positions), gl.STATIC_DRAW);
+	}
+
+	addattrib(gl, shader, buffer, components, type, normalized, stride, offset) {
+		gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
+		gl.vertexAttribPointer(
+			shader.attribs.position,
+			components,
+			type,
+			normalized,
+			stride,
+			offset);
+		gl.enableVertexAttribArray(shader.attribs.position);
+	}
+}