69 lines
No EOL
1.6 KiB
JavaScript
69 lines
No EOL
1.6 KiB
JavaScript
import { gl, ext } from './Renderer.js'
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export class Mesh {
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static #vaos = []
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static #vbos = []
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#vertexCount
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#count
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#id
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#indicies
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constructor(vertexCount) {
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this.#id = ext.createVertexArrayOES()
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ext.bindVertexArrayOES(this.#id)
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Mesh.#vaos.push(this.#id)
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this.#vertexCount = vertexCount
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this.#count = 0
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this.#indicies = 0
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}
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store(data, dim) {
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let id = gl.createBuffer()
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Mesh.#vbos.push(id)
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gl.bindBuffer(gl.ARRAY_BUFFER, id)
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gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(data), gl.STATIC_DRAW)
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gl.vertexAttribPointer(this.#count, dim, gl.FLOAT, gl.FALSE, 0, 0)
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gl.enableVertexAttribArray(this.#count)
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this.#count++;
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return this
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}
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indicies(data) {
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let id = gl.createBuffer()
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Mesh.#vbos.push(id)
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gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, id)
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gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Uint16Array(data), gl.STATIC_DRAW)
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this.#indicies = data.length
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return this
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}
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finish() {
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this.unbind()
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return this
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}
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bind() {
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ext.bindVertexArrayOES(this.#id)
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for(let i = 0; i < this.#count; i++) {
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gl.enableVertexAttribArray(i)
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}
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}
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unbind() {
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ext.bindVertexArrayOES(null)
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for(let i = 0; i < this.#count; i++) {
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gl.disableVertexAttribArray(i)
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}
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}
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draw() {
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if(this.#indicies > 0) {
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gl.drawElements(gl.TRIANGLES, this.#indicies, gl.UNSIGNED_SHORT, 0)
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} else {
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gl.drawArrays(gl.TRIANGLES, 0, this.#vertexCount)
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}
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}
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} |