adammyhre · October 5, 2025 12:54 · Oct 5, 2025
diff --git a/BulletHoleSpawner.cs b/BulletHoleSpawner.cs
@@ -0,0 +1,93 @@
+using System.Collections;
+using UnityEngine;
+using UnityEngine.Pool;
+using UnityEngine.Rendering.Universal;
+
+public class BulletHoleSpawner : MonoBehaviour {
+    #region Fields
+
+    IObjectPool<DecalProjector> decalPool;
+
+    [Tooltip("Material to use for the bullet hole decal.")]
+    public Material decalMaterial;
+
+    [Tooltip("Layers that can receive bullet hole decals.")]
+    public LayerMask decalLayers = -1;
+
+    [Tooltip("Size of each decal in world units (x = width, y = height, z = depth).")]
+    public Vector3 decalSize = new Vector3(0.5f, 0.5f, 0.5f);
+
+    [Tooltip("Duration in seconds for the decal to fade out before being returned to the pool.")]
+    public float fadeDuration = 5f;
+
+    Camera cam;
+
+    #endregion
+
+    void Start() {
+        cam = Camera.main;
+
+        decalPool = new ObjectPool<DecalProjector>(
+            createFunc: () => {
+                GameObject go = new GameObject("DecalProjector");
+                DecalProjector dp = go.AddComponent<DecalProjector>();
+                go.transform.parent = this.transform;
+                dp.material = decalMaterial;
+                dp.fadeFactor = 1f;
+                dp.fadeScale = 0.95f;
+                dp.startAngleFade = 0f;
+                dp.endAngleFade = 30f;
+                return dp;
+            },
+            actionOnGet: dp => dp.gameObject.SetActive(true),
+            actionOnRelease: dp => dp.gameObject.SetActive(false),
+            actionOnDestroy: dp => Destroy(dp.gameObject),
+            collectionCheck: false,
+            defaultCapacity: 10,
+            maxSize: 20
+        );
+    }
+
+    void SpawnDecal(RaycastHit hit) {
+        DecalProjector projector = decalPool.Get();
+
+        projector.transform.position = hit.point + hit.normal * 0.01f;
+
+        Quaternion normalRotation = Quaternion.LookRotation(-hit.normal, Vector3.up);
+        Quaternion randomRotation = Quaternion.Euler(0, 0, Random.Range(0f, 360f));
+        projector.transform.rotation = normalRotation * randomRotation;
+
+        projector.size = decalSize;
+
+        StartCoroutine(FadeAndRelease(projector, fadeDuration));
+    }
+
+    void Update() {
+        if (Input.GetMouseButtonDown(0)) {
+            Ray ray = cam.ScreenPointToRay(Input.mousePosition);
+
+            if (Physics.SphereCast(ray, decalSize.x * 0.3f, out RaycastHit hitInfo, Mathf.Infinity, decalLayers)) {
+                SpawnDecal(hitInfo);
+            }
+        }
+    }
+
+    IEnumerator FadeAndRelease(DecalProjector projector, float duration) {
+        float time = 0f;
+        float initialFade = projector.fadeFactor;
+
+        while (time < duration) {
+            if (projector == null) yield break;
+
+            time += Time.deltaTime;
+            float t = time / duration;
+            projector.fadeFactor = Mathf.Lerp(initialFade, 0f, t);
+            yield return null;
+        }
+
+        if (projector != null) {
+            projector.fadeFactor = initialFade;
+            decalPool.Release(projector);
+        }
+    }
+}