feat: add visuals for entities damaging (#186)

docs-assets/handled-packets.md

@@ -32,8 +32,8 @@
 ❌ world_border_warning_reach
 ❌ simulation_distance
 ❌ chunk_biomes
-❌ damage_event
 ❌ hurt_animation
+✅ damage_event
 ✅ spawn_entity
 ✅ spawn_entity_experience_orb
 ✅ named_entity_spawn

prismarine-viewer/viewer/lib/entities.js

@@ -496,4 +496,22 @@ export class Entities extends EventEmitter {
       new TWEEN.Tween(e.rotation).to({ y: e.rotation.y + dy }, TWEEN_DURATION).start()
     }
   }
+
+  handleDamageEvent(entityId, damageAmount) {
+    const entityMesh = this.entities[entityId]?.children.find(c => c.name === 'mesh')
+    if (entityMesh) {
+      entityMesh.traverse((child) => {
+        if (child instanceof THREE.Mesh) {
+          const clonedMaterial = child.material.clone()
+          clonedMaterial.dispose()
+          child.material = child.material.clone()
+          const originalColor = child.material.color.clone()
+          child.material.color.set(0xff_00_00)
+          new TWEEN.Tween(child.material.color)
+            .to(originalColor, 500)
+            .start()
+        }
+      })
+    }
+  }
 }

src/entities.ts

@@ -1,4 +1,5 @@
 import { Entity } from 'prismarine-entity'
+import { versionToNumber } from 'prismarine-viewer/viewer/prepare/utils'
 import tracker from '@nxg-org/mineflayer-tracker'
 import { loader as autoJumpPlugin } from '@nxg-org/mineflayer-auto-jump'
 import { subscribeKey } from 'valtio/utils'
@@ -88,6 +89,21 @@ customEvents.on('gameLoaded', () => {
     }
   })
 
+  bot._client.on('damage_event', (data) => {
+    const { entityId, sourceTypeId: damage } = data
+    if (viewer.entities.entities[entityId]) {
+      viewer.entities.handleDamageEvent(entityId, damage)
+    }
+  })
+
+  bot._client.on('entity_status', (data) => {
+    if (versionToNumber(bot.version) >= versionToNumber('1.19.4')) return
+    const { entityId, entityStatus } = data
+    if (entityStatus === 2 && viewer.entities.entities[entityId]) {
+      viewer.entities.handleDamageEvent(entityId, entityStatus)
+    }
+  })
+
   const loadedSkinEntityIds = new Set<number>()
 
   const playerRenderSkin = (e: Entity) => {