Handle trigger and event zone

Engine/src/data/segment.ts

@@ -71,7 +71,8 @@ export class SegmentDecoration {
 export class SegmentZone {
   uuid: string
   points: [number, number][] = []
-  type: 'solid'|'fluid'
+  type: 'solid'|'fluid'|'trigger'
+  event: string = ''
   constructor(o: any) {
     this.uuid = o.uuid
     this.points = o.points.map((v: any) => {
@@ -79,6 +80,9 @@ export class SegmentZone {
     })
     if (o.data.type === 'fluid') {
       this.type = o.data.type
+    } else if (o.data.type === 'trigger') {
+      this.type = 'trigger'
+      this.event = o.data.event
     } else {
       this.type = 'solid'
     }