add the bounce primitive

modules/overlay/index.js

  * primitive
  */
 export { default as BillboardPrimitive } from './primitive/BillboardPrimitive.js'
+export { default as BounceBillboardPrimitive } from './primitive/BounceBillboardPrimitive'
+export { default as BounceLabelPrimitive } from './primitive/BounceLabelPrimitive'
 export { default as DiffuseWallPrimitive } from './primitive/DiffuseWallPrimitive.js'
 export { default as ElecEllipsoidPrimitive } from './primitive/ElecEllipsoidPrimitive'
 export { default as FlowLinePrimitive } from './primitive/FlowLinePrimitive'

modules/overlay/primitive/BounceBillboardPrimitive.js

+/**
+ * @Author: Caven
+ * @Date: 2021-06-03 21:06:17
+ */
+
+import { Cesium } from '@dc-modules/namespace'
+import State from '@dc-modules/state/State'
+import { Util } from '@dc-modules/utils'
+import Overlay from '../Overlay'
+import BillboardPrimitive from './BillboardPrimitive'
+
+const DEF_STYLE = {
+  maxOffsetY: 10,
+  offsetAmount: 0.1
+}
+
+class BounceBillboardPrimitive extends BillboardPrimitive {
+  constructor(position, icon) {
+    super(position, icon)
+    this._currentOffset = new Cesium.Cartesian2(0, 0)
+    this._isUp = true
+    this.type = Overlay.getOverlayType('bounce_billboard_primitive')
+    this._state = State.INITIALIZED
+  }
+
+  /**
+   *
+   * @param layer
+   * @private
+   */
+  _onAdd(layer) {
+    if (!layer) {
+      return
+    }
+    this._layer = layer
+    this._mountedHook && this._mountedHook()
+    if (this._layer?.delegate?.add && this._delegate) {
+      this._delegate = this._layer.billboards.add(this._delegate)
+      this._layer.delegate.add(this)
+    }
+    this._addedHook && this._addedHook()
+    this._state = State.ADDED
+  }
+
+  _onRemove() {
+    if (!this._layer || !this._delegate) {
+      return
+    }
+    if (this._layer?.delegate?.remove) {
+      this._layer.billboards.remove(this._delegate)
+      this._layer.delegate.remove(this)
+    }
+    this._removedHook && this._removedHook()
+    this._state = State.REMOVED
+  }
+
+  /**
+   *
+   */
+  update() {
+    if (!this._show) {
+      return
+    }
+    let maxOffsetY = this._style?.maxOffsetY || DEF_STYLE.maxOffsetY
+    let offsetAmount = this._style?.offsetAmount || DEF_STYLE.offsetAmount
+    if (this._currentOffset.y >= 0) {
+      this._isUp = true
+    } else if (this._currentOffset.y <= -maxOffsetY) {
+      this._isUp = false
+    }
+    this._currentOffset.y += offsetAmount * (this._isUp ? -1 : 1)
+    this._delegate.pixelOffset = this._currentOffset
+  }
+
+  /**
+   *
+   * @param style
+   * @returns {BounceBillboardPrimitive}
+   */
+  setStyle(style) {
+    if (!style || Object.keys(style).length === 0) {
+      return this
+    }
+    delete style['position'] &&
+      delete style['image'] &&
+      delete style['width'] &&
+      delete style['height']
+    this._style = style
+    Util.merge(this._delegate, this._style)
+    return this
+  }
+}
+
+Overlay.registerType('bounce_billboard_primitive')
+
+export default BounceBillboardPrimitive

modules/overlay/primitive/BounceLabelPrimitive.js

+/**
+ * @Author: Caven
+ * @Date: 2021-06-03 21:06:17
+ */
+
+import { Cesium } from '@dc-modules/namespace'
+import State from '@dc-modules/state/State'
+import { Util } from '@dc-modules/utils'
+import Overlay from '../Overlay'
+import LabelPrimitive from './LabelPrimitive'
+
+const DEF_STYLE = {
+  maxOffsetY: 10,
+  offsetAmount: 0.1
+}
+
+class BounceLabelPrimitive extends LabelPrimitive {
+  constructor(position, text) {
+    super(position, text)
+    this._currentOffset = new Cesium.Cartesian2(0, 0)
+    this._isUp = true
+    this.type = Overlay.getOverlayType('bounce_label_primitive')
+    this._state = State.INITIALIZED
+  }
+
+  /**
+   *
+   * @param layer
+   * @private
+   */
+  _onAdd(layer) {
+    if (!layer) {
+      return
+    }
+    this._layer = layer
+    this._mountedHook && this._mountedHook()
+    if (this._layer?.delegate?.add && this._delegate) {
+      this._delegate = this._layer.labels.add(this._delegate)
+      this._layer.delegate.add(this)
+    }
+    this._addedHook && this._addedHook()
+    this._state = State.ADDED
+  }
+
+  _onRemove() {
+    if (!this._layer || !this._delegate) {
+      return
+    }
+    if (this._layer?.delegate?.remove) {
+      this._layer.labels.remove(this._delegate)
+      this._layer.delegate.remove(this)
+    }
+    this._removedHook && this._removedHook()
+    this._state = State.REMOVED
+  }
+
+  /**
+   *
+   */
+  update() {
+    if (!this._show) {
+      return
+    }
+    let maxOffsetY = this._style?.maxOffsetY || DEF_STYLE.maxOffsetY
+    let offsetAmount = this._style?.offsetAmount || DEF_STYLE.offsetAmount
+    if (this._currentOffset.y >= 0) {
+      this._isUp = true
+    } else if (this._currentOffset.y <= -maxOffsetY) {
+      this._isUp = false
+    }
+    this._currentOffset.y += offsetAmount * (this._isUp ? -1 : 1)
+    this._delegate.pixelOffset = this._currentOffset
+  }
+
+  /**
+   *
+   * @param style
+   * @returns {BounceLabelPrimitive}
+   */
+  setStyle(style) {
+    if (!style || Object.keys(style).length === 0) {
+      return this
+    }
+    delete style['position'] && delete style['text']
+    this._style = style
+    Util.merge(this._delegate, this._style)
+    return this
+  }
+}
+
+Overlay.registerType('bounce_label_primitive')
+
+export default BounceLabelPrimitive

packages/core/src/components.js

   GatheringPlace,
   TailedAttackArrow,
   BillboardPrimitive,
+  BounceBillboardPrimitive,
+  BounceLabelPrimitive,
   DiffuseWallPrimitive,
   ElecEllipsoidPrimitive,
   FlowLinePrimitive,
   GatheringPlace,
   TailedAttackArrow,
   BillboardPrimitive,
+  BounceBillboardPrimitive,
+  BounceLabelPrimitive,
   DiffuseWallPrimitive,
   ElecEllipsoidPrimitive,
   FlowLinePrimitive,