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feat: implement auto camera animation
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,177 @@ | ||
| import { CatmullRomCurve3, Vector3 } from "three"; | ||
| import { gsap } from "gsap"; | ||
|
|
||
| // EXPERIENCES | ||
| import { HomeExperience } from "."; | ||
|
|
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| // BLUEPRINTS | ||
| import { ExperienceBasedBlueprint } from "~/blueprints/experiences/experience-based.blueprint"; | ||
| import { Config } from "~/config"; | ||
|
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| export const defaultCameraPath = new CatmullRomCurve3([ | ||
| new Vector3(0, 5.5, 21), | ||
| new Vector3(12, 10, 12), | ||
| new Vector3(21, 5.5, 0), | ||
| new Vector3(12, 3.7, 12), | ||
| new Vector3(0, 5.5, 21), | ||
| ]); | ||
| export const defaultCameraTarget = new Vector3(0, 2, 0); | ||
|
|
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| export class CameraAnimation extends ExperienceBasedBlueprint { | ||
| protected readonly _experience = new HomeExperience(); | ||
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| private readonly _appSizes = this._experience.app.sizes; | ||
| private readonly _appCamera = this._experience.app.camera; | ||
| private readonly _camera = this._experience.camera; | ||
| private readonly _navigation = this._experience.navigation; | ||
|
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| public enabled = false; | ||
| public cameraPath = defaultCameraPath; | ||
| public cameraTarget = defaultCameraTarget; | ||
| public progress = { | ||
| current: 0, | ||
| target: 0, | ||
| ease: 0.1, | ||
| }; | ||
| public positionInCurve = new Vector3(); | ||
| public reversed = false; | ||
| public timeline = gsap.timeline(); | ||
| public mouseDowned = false; | ||
| public cursorCoordinate = { x: 0, y: 0 }; | ||
| public normalizedCursorCoordinate = { x: 0, y: 0 }; | ||
|
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||
| private _onWheel?: (e: WheelEvent) => unknown; | ||
| private _onMousemove?: (e: MouseEvent) => unknown; | ||
| private _onMousedown?: (e: MouseEvent) => unknown; | ||
| private _onMouseUp?: (e: MouseEvent) => unknown; | ||
|
|
||
| private _wheelEvent(e: WheelEvent) { | ||
| if (!this.enabled) return; | ||
|
|
||
| if (e.deltaY < 0) { | ||
| this.progress.target += 0.05; | ||
| this.reversed = false; | ||
|
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| return; | ||
| } | ||
|
|
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| this.progress.target -= 0.05; | ||
| this.reversed = true; | ||
| } | ||
|
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||
| private _mouseMoveEvent(e: MouseEvent) { | ||
| if (this.enabled && this.mouseDowned) { | ||
| if (e.clientX < this.cursorCoordinate.x) { | ||
| this.progress.target += 0.002; | ||
| this.reversed = false; | ||
| } else if (e.clientX > this.cursorCoordinate.x) { | ||
| this.progress.target -= 0.002; | ||
| this.reversed = true; | ||
| } | ||
| } | ||
|
|
||
| if (!this.enabled) { | ||
| this.normalizedCursorCoordinate.x = | ||
| e.clientX / this._appSizes?.width - 0.5; | ||
| this.normalizedCursorCoordinate.y = | ||
| e.clientY / this._appSizes?.height - 0.5; | ||
| } | ||
|
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||
| this.cursorCoordinate = { x: e.clientX, y: e.clientY }; | ||
| } | ||
|
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||
| private _mouseDownEvent(e: MouseEvent) { | ||
| this.mouseDowned = true; | ||
| // if (this.focusedPosition && !this.mouseOverBubble) | ||
| // this._camera?.cameraZoomIn(); | ||
| } | ||
|
|
||
| private _mouseUpEvent(e: MouseEvent) { | ||
| this.mouseDowned = false; | ||
| // if (this.focusedPosition && !this.mouseOverBubble) | ||
| // this._experience.camera?.cameraZoomOut(); | ||
| } | ||
|
|
||
| public construct() { | ||
| this._onWheel = (e) => this._wheelEvent(e); | ||
| this._onMousemove = (e) => this._mouseMoveEvent(e); | ||
| this._onMousedown = (e) => this._mouseDownEvent(e); | ||
| this._onMouseUp = (e) => this._mouseUpEvent(e); | ||
|
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||
| window.addEventListener("wheel", this._onWheel); | ||
| window.addEventListener("mousemove", this._onMousemove); | ||
| window.addEventListener("mousedown", this._onMousedown); | ||
| window.addEventListener("mouseup", this._onMouseUp); | ||
| } | ||
|
|
||
| public destruct() { | ||
| this._onWheel && window.removeEventListener("wheel", this._onWheel); | ||
| this._onMousemove && | ||
| window.removeEventListener("mousemove", this._onMousemove); | ||
| this._onMousedown && | ||
| window.removeEventListener("mousedown", this._onMousedown); | ||
| this._onMouseUp && window.removeEventListener("mouseup", this._onMouseUp); | ||
| } | ||
|
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| public enable() { | ||
| if (this.enabled) return; | ||
| if (this._navigation?.view) this._navigation.view.controls = false; | ||
|
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||
| const toPosition = this.cameraPath.getPointAt( | ||
| this.progress.current, | ||
| this.positionInCurve | ||
| ); | ||
|
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| this._navigation | ||
| ?.updateCameraPosition(toPosition, this.cameraTarget) | ||
| .then(() => { | ||
| this.enabled = true; | ||
| }); | ||
| } | ||
|
|
||
| public disable() { | ||
| if (!this.enabled) return; | ||
| this.enabled = false; | ||
|
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| if (this.timeline.isActive()) this.timeline.progress(1); | ||
|
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| this._navigation | ||
| ?.updateCameraPosition( | ||
| this.positionInCurve.setY(2), | ||
| this.cameraTarget, | ||
| Config.GSAP_ANIMATION_DURATION * 0.5 | ||
| ) | ||
| .then(() => { | ||
| if (this._navigation?.view) this._navigation.view.controls = true; | ||
| }); | ||
| } | ||
|
|
||
| public update(): void { | ||
| if (!this.enabled || this.timeline.isActive()) return; | ||
|
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| this.progress.current = gsap.utils.interpolate( | ||
| this.progress.current, | ||
| this.progress.target, | ||
| this.progress.ease | ||
| ); | ||
| this.progress.target = | ||
| this.progress.target + (this.reversed ? -0.0001 : 0.0001); | ||
|
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||
| if (this.progress.target > 1) { | ||
| setTimeout(() => { | ||
| this.reversed = true; | ||
| }, 1000); | ||
| } | ||
|
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| if (this.progress.target < 0) { | ||
| setTimeout(() => { | ||
| this.reversed = false; | ||
| }, 1000); | ||
| } | ||
| this.progress.target = gsap.utils.clamp(0, 1, this.progress.target); | ||
| this.progress.current = gsap.utils.clamp(0, 1, this.progress.current); | ||
| this.cameraPath.getPointAt(this.progress.current, this.positionInCurve); | ||
|
|
||
| this._navigation?.setPositionInSphere(this.positionInCurve); | ||
| } | ||
| } |
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