Add files

src/graphics/drawables/lights/flashlight.ts

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+import { mat2d, vec2, vec3 } from 'gl-matrix';
+import { settings } from '../../settings';
+import { IDrawableDescriptor } from '../i-drawable-descriptor';
+import { ILight } from './i-light';
+
+export class Flashlight implements ILight {
+  public static descriptor: IDrawableDescriptor = {
+    uniformName: 'flashlights',
+    countMacroName: 'flashlightCount',
+    shaderCombinationSteps: settings.shaderCombinations.flashlightSteps,
+    empty: new Flashlight(
+      vec2.fromValues(0, 0),
+      vec2.fromValues(0, 0),
+      0,
+      vec3.fromValues(0, 0, 0),
+      0
+    ),
+  };
+
+  public constructor(
+    public center: vec2,
+    public direction: vec2,
+    public lightDrop: number,
+    public color: vec3,
+    public lightness: number
+  ) {}
+
+  public distance(_: vec2): number {
+    return 0;
+  }
+
+  public serializeToUniforms(uniforms: any, scale: number, transform: mat2d): void {
+    const listName = Flashlight.descriptor.uniformName;
+
+    if (!Object.prototype.hasOwnProperty.call(uniforms, listName)) {
+      uniforms[listName] = [];
+    }
+
+    uniforms[listName].push({
+      center: vec2.transformMat2d(vec2.create(), this.center, transform),
+      direction: this.direction,
+      lightDrop: this.lightDrop,
+      value: this.value,
+    });
+  }
+
+  public get value(): vec3 {
+    return vec3.scale(vec3.create(), this.color, this.lightness);
+  }
+}