game init

Assets/Scripts/TerrainTreeColider.cs

@@ -0,0 +1,62 @@
+using System.Linq;
+using UnityEngine;
+
+public class TerrainTreeColider : MonoBehaviour
+{
+    [SerializeField]
+    private Terrain terrain;
+
+    private void Reset()
+    {
+        terrain = GetComponent<Terrain>();
+
+        Extract();
+    }
+
+    [ContextMenu("Extract")]
+    public void Extract()
+    {
+        Collider[] colliders = terrain.GetComponentsInChildren<Collider>();
+
+        //Skip the first, since its the Terrain Collider
+        for (int i = 1; i < colliders.Length; i++)
+        {
+            //Delete all previously created colliders first
+            DestroyImmediate(colliders[i].gameObject);
+        }
+
+        for (int i = 0; i < terrain.terrainData.treePrototypes.Length; i++)
+        {
+            TreePrototype tree = terrain.terrainData.treePrototypes[i];
+
+            //Get all instances matching the prefab index
+            TreeInstance[] instances = terrain.terrainData.treeInstances.Where(x => x.prototypeIndex == i).ToArray();
+
+            for (int j = 0; j < instances.Length; j++)
+            {
+                //Un-normalize positions so they're in world-space
+                instances[j].position = Vector3.Scale(instances[j].position, terrain.terrainData.size);
+                instances[j].position += terrain.GetPosition();
+
+                //Fetch the collider from the prefab object parent
+                CapsuleCollider prefabCollider = tree.prefab.GetComponent<CapsuleCollider>();
+                if (!prefabCollider) continue;
+
+                GameObject obj = new GameObject();
+                obj.name = tree.prefab.name + j;
+
+                CapsuleCollider objCollider = obj.AddComponent<CapsuleCollider>();
+
+                objCollider.center = prefabCollider.center;
+                objCollider.height = prefabCollider.height;
+                objCollider.radius = prefabCollider.radius;
+
+                if (terrain.preserveTreePrototypeLayers) obj.layer = tree.prefab.layer;
+                else obj.layer = terrain.gameObject.layer;
+
+                obj.transform.position = instances[j].position;
+                obj.transform.parent = terrain.transform;
+            }
+        }
+    }
+}