const Buffer = {}

let vaos = []
let vbos = []

class Mesh {
    
    static #vaos = []
    static #vbos = []

    #count = 0

    constructor(vertexCount) {
        this.id = gl.createVertexArray()
        gl.bindVertexArray(this.id)
        Mesh.#vaos.push(this.id)
        this.vertexCount = vertexCount
    }

    store(data, dim) {
        let id = gl.createBuffer()
        Mesh.#vbos.push(id)
        gl.bindBuffer(gl.ARRAY_BUFFER, id)
        gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(data), gl.STATIC_DRAW)
        gl.vertexAttribPointer(this.#count, dim, gl.FLOAT, false, Float32Array.BYTES_PER_ELEMENT * dim, 0)
        gl.enableVertexAttribArray(this.#count)
        this.#count++;
        return this
    }

    finish() {
        this.unbind()
        return this
    }

    bind() {
        gl.bindVertexArray(this.id)
    }

    unbind() {
        gl.bindVertexArray(null)
    }

}