58 lines
1.6 KiB
TypeScript
58 lines
1.6 KiB
TypeScript
import Viewport from "./Viewport";
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import CanvasNode from "../Nodes/CanvasNode";
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import Map from "../DataTypes/Map";
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import Vec2 from "../DataTypes/Vec2";
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import Scene from "../Scene/Scene";
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export default abstract class SceneGraph{
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protected viewport: Viewport;
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protected nodeMap: Map<CanvasNode>;
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protected idCounter: number;
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protected scene: Scene;
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constructor(viewport: Viewport, scene: Scene){
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this.viewport = viewport;
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this.scene = scene;
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this.nodeMap = new Map<CanvasNode>();
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this.idCounter = 0;
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}
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addNode(node: CanvasNode): number {
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this.nodeMap.add(this.idCounter.toString(), node);
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this.addNodeSpecific(node, this.idCounter.toString());
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this.idCounter += 1;
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return this.idCounter - 1;
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};
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protected abstract addNodeSpecific(node: CanvasNode, id: string): void;
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removeNode(node: CanvasNode): void {
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// Find and remove node in O(n)
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// TODO: Can this be better?
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let id = this.nodeMap.keys().filter((key: string) => this.nodeMap.get(key) === node)[0];
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if(id !== undefined){
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this.nodeMap.set(id, undefined);
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this.removeNodeSpecific(node, id);
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}
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};
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protected abstract removeNodeSpecific(node: CanvasNode, id: string): void;
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getNode(id: string): CanvasNode{
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return this.nodeMap.get(id);
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};
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getNodeAt(vecOrX: Vec2 | number, y: number = null): CanvasNode {
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if(vecOrX instanceof Vec2){
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return this.getNodeAtCoords(vecOrX.x, vecOrX.y);
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} else {
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return this.getNodeAtCoords(vecOrX, y);
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}
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}
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protected abstract getNodeAtCoords(x: number, y: number): CanvasNode;
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abstract update(deltaT: number): void;
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abstract getVisibleSet(): Array<CanvasNode>;
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} |