132 lines
4.6 KiB
TypeScript
132 lines
4.6 KiB
TypeScript
import { Easing } from "../../types";
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import { HtmlUtils } from "../../WebRtc/HtmlUtils";
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import type { Box } from "../../WebRtc/LayoutManager";
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import type { Player } from "../Player/Player";
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import type { WaScaleManager } from "../Services/WaScaleManager";
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import type { GameScene } from "./GameScene";
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export enum CameraMode {
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Free = "Free",
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Follow = "Follow",
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Focus = "Focus",
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}
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export class CameraManager extends Phaser.Events.EventEmitter {
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private scene: GameScene;
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private camera: Phaser.Cameras.Scene2D.Camera;
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private cameraBounds: { x: number; y: number };
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private waScaleManager: WaScaleManager;
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private cameraMode: CameraMode = CameraMode.Free;
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private restoreZoomTween?: Phaser.Tweens.Tween;
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constructor(scene: GameScene, cameraBounds: { x: number; y: number }, waScaleManager: WaScaleManager) {
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super();
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this.scene = scene;
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this.camera = scene.cameras.main;
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this.cameraBounds = cameraBounds;
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this.waScaleManager = waScaleManager;
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this.initCamera();
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this.scene.game.events.on("wa-scale-manager:refresh-focus-on-target", () => {
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const focusOn = this.waScaleManager.getFocusTarget();
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if (!focusOn) {
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return;
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}
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this.camera.centerOn(focusOn.x + focusOn.width * 0.5, focusOn.y + focusOn.height * 0.5);
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});
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}
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public getCamera(): Phaser.Cameras.Scene2D.Camera {
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return this.camera;
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}
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public enterFocusMode(
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focusOn: { x: number; y: number; width: number; height: number },
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duration: number = 1000
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): void {
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this.setCameraMode(CameraMode.Focus);
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this.waScaleManager.saveZoom();
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this.waScaleManager.setFocusTarget(focusOn);
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this.restoreZoomTween?.stop();
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const targetZoomModifier = this.waScaleManager.getTargetZoomModifierFor(focusOn.width, focusOn.height);
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const currentZoomModifier = this.waScaleManager.zoomModifier;
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const zoomModifierChange = targetZoomModifier - currentZoomModifier;
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this.camera.stopFollow();
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this.camera.pan(
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focusOn.x + focusOn.width * 0.5,
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focusOn.y + focusOn.height * 0.5,
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duration,
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Easing.SineEaseOut,
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false,
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(camera, progress, x, y) => {
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this.waScaleManager.zoomModifier = currentZoomModifier + progress * zoomModifierChange;
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}
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);
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}
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public leaveFocusMode(player: Player): void {
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this.waScaleManager.setFocusTarget();
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// We are forcing camera.pan to kill previous pan animation on EnterFocusMode
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this.camera.pan(player.x, player.y, 1, Easing.SineEaseOut, true);
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this.startFollow(player);
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this.restoreZoom();
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}
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public startFollow(target: object | Phaser.GameObjects.GameObject): void {
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this.setCameraMode(CameraMode.Follow);
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this.camera.startFollow(target, true);
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}
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/**
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* Updates the offset of the character compared to the center of the screen according to the layout manager
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* (tries to put the character in the center of the remaining space if there is a discussion going on.
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*/
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public updateCameraOffset(array: Box): void {
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const xCenter = (array.xEnd - array.xStart) / 2 + array.xStart;
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const yCenter = (array.yEnd - array.yStart) / 2 + array.yStart;
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const game = HtmlUtils.querySelectorOrFail<HTMLCanvasElement>("#game canvas");
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// Let's put this in Game coordinates by applying the zoom level:
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this.camera.setFollowOffset(
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((xCenter - game.offsetWidth / 2) * window.devicePixelRatio) / this.scene.scale.zoom,
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((yCenter - game.offsetHeight / 2) * window.devicePixelRatio) / this.scene.scale.zoom
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);
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}
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public isCameraLocked(): boolean {
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return this.cameraMode === CameraMode.Focus;
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}
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private setCameraMode(mode: CameraMode): void {
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if (this.cameraMode === mode) {
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return;
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}
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this.cameraMode = mode;
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}
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private restoreZoom(): void {
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this.restoreZoomTween?.stop();
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this.restoreZoomTween = this.scene.tweens.addCounter({
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from: this.waScaleManager.zoomModifier,
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to: this.waScaleManager.getSaveZoom(),
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duration: 1000,
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ease: Easing.SineEaseOut,
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onUpdate: (tween: Phaser.Tweens.Tween) => {
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this.waScaleManager.zoomModifier = tween.getValue();
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},
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});
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}
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private initCamera() {
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this.camera = this.scene.cameras.main;
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this.camera.setBounds(0, 0, this.cameraBounds.x, this.cameraBounds.y);
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}
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}
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