arcade-physics
Version:
Use Arcade Physics without Phaser.
59 lines • 2.41 kB
JavaScript
;
/**
* @author Richard Davey <rich@photonstorm.com>
* @copyright 2020 Photon Storm Ltd.
* @license {@link https://opensource.org/licenses/MIT|MIT License}
*/
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const GetColor_1 = __importDefault(require("../../display/color/GetColor"));
/**
* Takes a Wavefront Material file and extracts the diffuse reflectivity of the named
* materials, converts them to integer color values and returns them.
*
* This is used internally by the `addOBJ` and `addModel` methods, but is exposed for
* public consumption as well.
*
* Note this only works with diffuse values, specified in the `Kd r g b` format, where
* `g` and `b` are optional, but `r` is required. It does not support spectral rfl files,
* or any other material statement (such as `Ka` or `Ks`)
*
* @method Phaser.Geom.Mesh.ParseObjMaterial
* @since 3.50.0
*
* @param {string} mtl - The OBJ MTL file as a raw string, i.e. loaded via `this.load.text`.
*
* @return {object} The parsed material colors, where each property of the object matches the material name.
*/
const ParseObjMaterial = mtl => {
const output = {};
const lines = mtl.split('\n');
let currentMaterial = '';
for (let i = 0; i < lines.length; i++) {
const line = lines[i].trim();
if (line.indexOf('#') === 0 || line === '') {
continue;
}
const lineItems = line.replace(/\s\s+/g, ' ').trim().split(' ');
switch (lineItems[0].toLowerCase()) {
case 'newmtl': {
currentMaterial = lineItems[1];
break;
}
// The diffuse reflectivity of the current material
// Support r, [g], [b] format, where g and b are optional
case 'kd': {
const r = Math.floor(lineItems[1] * 255);
const g = lineItems.length >= 2 ? Math.floor(lineItems[2] * 255) : r;
const b = lineItems.length >= 3 ? Math.floor(lineItems[3] * 255) : r;
output[currentMaterial] = (0, GetColor_1.default)(r, g, b);
break;
}
}
}
return output;
};
exports.default = ParseObjMaterial;
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