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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,193 @@ | ||
| import * as Tea from "../Tea"; | ||
|
|
||
| class Context { | ||
| url: string; | ||
| callback: (materials: any) => void; | ||
| materials: any; | ||
| textureCount: number; | ||
| textureLoaded: number; | ||
|
|
||
| constructor() { | ||
| this.textureCount = 0; | ||
| this.textureLoaded = 0; | ||
| } | ||
|
|
||
| get isCompleted(): boolean { | ||
| if (this.textureLoaded >= this.textureCount) { | ||
| return true; | ||
| } | ||
| return false; | ||
| } | ||
|
|
||
| complete(): void { | ||
| this.callback(this.materials); | ||
| } | ||
| } | ||
|
|
||
| export class MtlReader { | ||
| constructor() { | ||
| } | ||
|
|
||
| readFile(url: string, callback: (material: any) => void): void { | ||
| if (callback == null) { | ||
| return; | ||
| } | ||
| var context = new Context(); | ||
| context.url = url; | ||
| context.callback = callback; | ||
|
|
||
| Tea.File.readText(url, (err, data) => { | ||
| if (err) { | ||
| callback(null); | ||
| return; | ||
| } | ||
| this.read(context, data); | ||
| }); | ||
| } | ||
|
|
||
| protected read(context: Context, data: string): void { | ||
| var materials: any = {}; | ||
| var material: any = null; | ||
| this.forEachLine(data, (text: string, index: number) => { | ||
| var params = text.trim().split(/\s+/); | ||
| switch (params[0]) { | ||
| case "#": | ||
| // comments | ||
| break; | ||
| case "newmtl": | ||
| // new material | ||
| material = this.createMaterial(); | ||
| materials[params[1]] = material; | ||
| break; | ||
| case "Ka": // ambient | ||
| case "Kd": // diffuse | ||
| case "Ks": // specular | ||
| case "Ke": // ? | ||
| case "Tf": // ? | ||
| material[params[0]] = this.parseColor(params); | ||
| break; | ||
| case "Ns": // ? | ||
| case "Ni": // ? | ||
| case "Tr": // ? | ||
| case "d": // dissolve | ||
| material[params[0]] = this.parseFloat(params); | ||
| break; | ||
| case "illum": | ||
| // illumination | ||
| material.illum = this.parseFloat(params); | ||
| break; | ||
| case "map_Ka": // texture | ||
| case "map_Kd": // | ||
| case "map_Ks": // | ||
| case "map_Ns": // | ||
| case "map_d": // | ||
| case "map_bump": // | ||
| case "bump": // | ||
| case "disp": // | ||
| case "decal": // | ||
| var path = ""; | ||
| if (params.length <= 2) { | ||
| path = this.getUrl(context.url, params[1]); | ||
| } else { | ||
| path = this.getUrl(context.url, params[params.length - 1]); | ||
| } | ||
| //console.log("path", path); | ||
| if (material[params[0]] == null) { | ||
| context.textureCount++; | ||
| material[params[0]] = path; | ||
| } | ||
| //this.readImage(material, params[0], path); | ||
| break; | ||
| } | ||
| }); | ||
|
|
||
| context.materials = materials; | ||
| if (context.isCompleted) { | ||
| //console.log("complete"); | ||
| context.complete(); | ||
| return; | ||
| } | ||
|
|
||
| for (var key in materials) { | ||
| var m = materials[key]; | ||
| for (var k in m) { | ||
| if (k.indexOf("map_") < 0) { | ||
| continue; | ||
| } | ||
| var path = m[k]; | ||
| if (path != null && path !== "") { | ||
| this.readImage(context, m, k, path); | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| protected readImage(context: Context, material: any, name: string, path: string): void { | ||
| Tea.File.readImage(path, (err, image) => { | ||
| if (err == null) { | ||
| material[name] = image; | ||
| } | ||
| context.textureLoaded++; | ||
| //console.log("context.textureLoaded", context.textureLoaded, context.textureCount); | ||
| if (context.isCompleted) { | ||
| //console.log("complete"); | ||
| context.complete(); | ||
| } | ||
| }); | ||
| } | ||
|
|
||
|
|
||
| protected createMaterial(): any { | ||
| return { | ||
| Ka: null, | ||
| Kd: null, | ||
| Ks: null, | ||
| Ke: null, | ||
| Ns: null, | ||
| Ni: null, | ||
| Tr: null, | ||
| Ts: null, | ||
| d: null, | ||
| illum: null, | ||
| map_Ka: null, | ||
| map_Kd: null, | ||
| map_Ks: null, | ||
| map_Ns: null, | ||
| map_d: null, | ||
| map_bump: null, | ||
| bump: null, | ||
| disp: null, | ||
| decal: null | ||
| }; | ||
| } | ||
|
|
||
| protected forEachLine(data: string, callback: (text: string, index: number) => void): void { | ||
| var lines = data.split(/\r\n|\r|\n/); | ||
| var length = lines.length; | ||
| for (var i = 0; i < length; i++) { | ||
| callback(lines[i], i); | ||
| } | ||
| } | ||
|
|
||
| protected getUrl(base: string, filename: string): string { | ||
| var url = new URL(base, location.toString()); | ||
| var path = url.pathname; | ||
| path = path.substr(0, path.lastIndexOf("/") + 1); | ||
| return path + filename; | ||
| } | ||
|
|
||
| protected parseFloat(params: Array<string>): number | null { | ||
| var value = parseFloat(params[1]); | ||
| if (isNaN(value)) { | ||
| return null; | ||
| } | ||
| return value; | ||
| } | ||
|
|
||
| protected parseColor(params: Array<string>): Tea.Color { | ||
| var r = parseFloat(params[1]); | ||
| var g = parseFloat(params[2]); | ||
| var b = parseFloat(params[3]); | ||
| return new Tea.Color(r, g, b, 1); | ||
| } | ||
| } |
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