50 lines
1.2 KiB
TypeScript
50 lines
1.2 KiB
TypeScript
import { vec2, vec3, mat2d } from 'gl-matrix';
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import { GameObject } from '../../../objects/game-object';
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import { settings } from '../../settings';
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import { IDrawableDescriptor } from '../i-drawable-descriptor';
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import { ILight } from './i-light';
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export class CircleLight implements ILight {
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public static descriptor: IDrawableDescriptor = {
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uniformName: 'circleLights',
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countMacroName: 'circleLightCount',
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shaderCombinationSteps: settings.shaderCombinations.circleLightSteps,
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};
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constructor(
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public center: vec2,
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public radius: number,
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public color: vec3,
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public lightness: number
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) {}
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public distance(target: vec2): number {
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return 0;
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}
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public serializeToUniforms(
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uniforms: any,
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scale: number,
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transform: mat2d
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): void {
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const uniformName = CircleLight.descriptor.uniformName;
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if (!uniforms.hasOwnProperty(uniformName)) {
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uniforms[uniformName] = [];
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}
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uniforms[uniformName].push({
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center: vec2.transformMat2d(vec2.create(), this.center, transform),
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radius: this.radius * scale,
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value: this.value,
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});
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}
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public get value(): vec3 {
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return vec3.scale(
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vec3.create(),
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vec3.normalize(this.color, this.color),
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this.lightness
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);
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}
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}
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