86 lines
2.1 KiB
TypeScript
86 lines
2.1 KiB
TypeScript
import vsSource from './shaders/shader.vert';
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import texture from './shaders/texture.frag';
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import {loadObjBuffers} from './objutils';
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import {initShaderProgram} from './shaders';
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// import {loadTexture} from './texture';
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import {drawScene} from './draw';
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import {initCache, initParams, setProgramInfo} from './init';
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import {uiUpdateParams,
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uiUpdateTexture,
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uiUpdateObject,
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uiUpdateShader,
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uiUpdateScene} from './uijquery';
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import {initUX} from './ux';
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import {updateCamera} from './camera';
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main();
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/**
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* The program purpose is encapsulated in a main function
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*/
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async function main() {
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const context: any = {
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gl: null,
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obj: null,
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texture: null,
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params: null,
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buffers: null,
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programInfo: null,
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shaderProgram: null,
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fragmentShader: null,
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vertexShader: null,
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cache: null,
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scene: [],
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};
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const canvas: any = document.querySelector('#glCanvas')!;
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context.gl = canvas.getContext('webgl2');
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if (context.gl == null) {
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canvas.parentNode.removeChild(canvas);
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document.getElementById('root')!.insertAdjacentHTML('beforeend',
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`<p>Unable to initialize WebGL. Your browser or machine may not
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support it.</p>`);
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}
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initParams(context);
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await initCache(context);
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loadObjBuffers(context, context.cache.objs.racer);
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initShaderProgram(context, vsSource, texture);
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setProgramInfo(context);
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// context.texture = loadTexture(context.gl, '/static/textures/racer.png');
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let then = 0;
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let changed = false;
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/**
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* Draws the scene repeatedly
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* @param {number} now the current time
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*/
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function render(now: any) {
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now *= 0.001;
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const deltaTime = now - then;
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context.params.squareRotation += deltaTime * context.params.rotSpeed;
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if (now >= 1 && changed == false) {
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changed = true;
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}
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then = now;
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updateCamera(context);
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drawScene(context.gl,
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context.programInfo,
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context.buffers,
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context.params,
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context.texture,
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context.scene,
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now);
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requestAnimationFrame(render);
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}
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uiUpdateParams(context.params);
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uiUpdateTexture(context);
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uiUpdateObject(context);
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uiUpdateShader(context);
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uiUpdateScene(context);
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initUX(context, canvas);
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requestAnimationFrame(render);
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}
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