export { Camera } from './core/Camera.js'
export { Entity } from './core/Entity.js'
export { Material } from './core/Material.js'
export { Mesh } from './core/Mesh.js'
export { Renderer } from './core/Renderer.js'
export { Scene } from './core/Scene.js'
export { Shader } from './core/Shader.js'
export { Mat4 } from './math/Mat4.js'
export { Vec3 } from './math/Vec3.js'
export { M as Math } from './math/Math.js'
export { Cube } from './geometry/Cube.js'
export { Sphere } from './geometry/Sphere.js'
export { OBJ } from './geometry/OBJ.js'
export { File } from './io/File.js'
export { Input } from './io/Input.js'
export { SimpleController } from './controller/SimpleController.js'
export { SimpleShader } from './shader/SimpleShader.js'

export { Loop }
export { DT }

import { Input } from './io/Input.js'
import { gl } from './core/Renderer.js'

var DT = 0;
var last = Date.now()
const Loop = (fn) => {
    Input.setup()
    const callback = () => {
        var now = Date.now()
        DT = ( now - last) / 1000
        last = now
        gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
        gl.clearColor(0, 0, 0, 1);
        fn()
        window.requestAnimationFrame(callback)
    }
    callback()
}