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* separated out grid code * split out selector and disabled deselection on orbiting * added type for observer set callback * fixed example page
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,77 @@ | ||
| import * as pc from 'playcanvas'; | ||
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| class Grid { | ||
| /** | ||
| * @type {pc.Vec3[]} | ||
| * @private | ||
| */ | ||
| _lines = []; | ||
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| /** | ||
| * @type {pc.Color} | ||
| * @private | ||
| */ | ||
| _color = new pc.Color(1, 1, 1, 0.5); | ||
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| /** | ||
| * @type {pc.Vec2} | ||
| * @private | ||
| */ | ||
| _halfExtents = new pc.Vec2(4, 4); | ||
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| constructor() { | ||
| this._setLines(); | ||
| } | ||
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| set halfExtents(value) { | ||
| this._halfExtents.copy(value); | ||
| this._setLines(); | ||
| } | ||
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| get halfExtents() { | ||
| return this._halfExtents; | ||
| } | ||
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| set color(value) { | ||
| this._color.copy(value); | ||
| } | ||
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| get color() { | ||
| return this._color; | ||
| } | ||
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| /** | ||
| * @private | ||
| */ | ||
| _setLines() { | ||
| this._lines = [ | ||
| new pc.Vec3(-this._halfExtents.x, 0, 0), | ||
| new pc.Vec3(this._halfExtents.x, 0, 0), | ||
| new pc.Vec3(0, 0, -this._halfExtents.y), | ||
| new pc.Vec3(0, 0, this._halfExtents.y) | ||
| ]; | ||
| for (let i = -this._halfExtents.x; i <= this._halfExtents.x; i++) { | ||
| if (i === 0) { | ||
| continue; | ||
| } | ||
| this._lines.push(new pc.Vec3(i, 0, -this._halfExtents.y)); | ||
| this._lines.push(new pc.Vec3(i, 0, this._halfExtents.y)); | ||
| } | ||
| for (let i = -this._halfExtents.y; i <= this._halfExtents.y; i++) { | ||
| if (i === 0) { | ||
| continue; | ||
| } | ||
| this._lines.push(new pc.Vec3(-this._halfExtents.x, 0, i)); | ||
| this._lines.push(new pc.Vec3(this._halfExtents.x, 0, i)); | ||
| } | ||
| } | ||
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| /** | ||
| * @param {pc.AppBase} app - The app. | ||
| */ | ||
| draw(app) { | ||
| app.drawLines(this._lines, this._color); | ||
| } | ||
| } | ||
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| export { Grid }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,93 @@ | ||
| import * as pc from 'playcanvas'; | ||
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| class Selector extends pc.EventHandler { | ||
| /** | ||
| * @type {pc.CameraComponent} | ||
| * @private | ||
| */ | ||
| _camera; | ||
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| /** | ||
| * @type {pc.Scene} | ||
| * @private | ||
| */ | ||
| _scene; | ||
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| /** | ||
| * @type {pc.Picker} | ||
| * @private | ||
| */ | ||
| _picker; | ||
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| /** | ||
| * @type {pc.Layer[]} | ||
| * @private | ||
| */ | ||
| _layers; | ||
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| /** | ||
| * @type {pc.Vec2} | ||
| * @private | ||
| */ | ||
| _start = new pc.Vec2(); | ||
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| /** | ||
| * @param {pc.AppBase} app - The app. | ||
| * @param {pc.CameraComponent} camera - The camera to pick from. | ||
| * @param {pc.Layer[]} [layers] - The layers to pick from. | ||
| */ | ||
| constructor(app, camera, layers = []) { | ||
| super(); | ||
| this._camera = camera; | ||
| this._scene = app.scene; | ||
| const device = app.graphicsDevice; | ||
| this._picker = new pc.Picker(app, device.canvas.width, device.canvas.height); | ||
| this._layers = layers; | ||
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| this._onPointerDown = this._onPointerDown.bind(this); | ||
| this._onPointerUp = this._onPointerUp.bind(this); | ||
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| window.addEventListener('pointerdown', this._onPointerDown); | ||
| window.addEventListener('pointerup', this._onPointerUp); | ||
| } | ||
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| /** | ||
| * @param {MouseEvent} e - The event. | ||
| * @private | ||
| */ | ||
| _onPointerDown(e) { | ||
| this._start.set(e.clientX, e.clientY); | ||
| } | ||
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| /** | ||
| * @param {MouseEvent} e - The event. | ||
| * @private | ||
| */ | ||
| _onPointerUp(e) { | ||
| if (e.clientX !== this._start.x || e.clientY !== this._start.y) { | ||
| return; | ||
| } | ||
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| if (this._picker) { | ||
| const device = this._picker.device; | ||
| this._picker.resize(device.canvas.width, device.canvas.height); | ||
| this._picker.prepare(this._camera, this._scene, this._layers); | ||
| } | ||
|
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| const selection = this._picker.getSelection(e.clientX, e.clientY, 2, 2); | ||
|
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| if (!selection[0]) { | ||
| this.fire('deselect'); | ||
| return; | ||
| } | ||
|
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| this.fire('select', selection[0].node, !e.ctrlKey && !e.metaKey); | ||
| } | ||
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| destroy() { | ||
| window.removeEventListener('pointerdown', this._onPointerDown); | ||
| window.removeEventListener('pointerup', this._onPointerUp); | ||
| } | ||
| } | ||
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| export { Selector }; |