riversong code showcase

2026-05-21 15:52:18 +02:00
commit 4c9eea1c02
462 changed files with 23406 additions and 0 deletions
--- a/Source/Riversong/Tools/WaterFlowMapBaker.cs
+++ b/Source/Riversong/Tools/WaterFlowMapBaker.cs
@@ -0,0 +1,91 @@
+using Sirenix.OdinInspector;
+using UnityEngine;
+using UnityEngine.Splines;
+#if UNITY_EDITOR
+using System.IO;
+using UnityEditor;
+#endif
+
+namespace DanieleMarotta.RiversongCodeShowcase
+{
+    [RequireComponent(typeof(SplineContainer))]
+    public class WaterFlowMapBaker : MonoBehaviour
+    {
+#if UNITY_EDITOR
+        public int WorldSize = 100;
+
+        public int MapSize = 512;
+
+        public float InfluenceRadius = 10;
+
+        public Texture2D OutputTexture;
+
+        [Button(ButtonSizes.Large)]
+        [GUIColor("cyan")]
+        public void BakeFlowMap()
+        {
+            var splineContainer = GetComponent<SplineContainer>();
+
+            var texture = new Texture2D(MapSize, MapSize, TextureFormat.RGBA32, false, true)
+            {
+                wrapMode = TextureWrapMode.Clamp,
+                filterMode = FilterMode.Bilinear
+            };
+
+            for (var y = 0; y < MapSize; y++)
+            for (var x = 0; x < MapSize; x++)
+            {
+                var c = new Color(0.5f, 0.5f, 0, 0);
+
+                var uv = new Vector2((x + 0.5f) / MapSize, (y + 0.5f) / MapSize);
+                var world = new Vector3(uv.x * WorldSize, 0, uv.y * WorldSize);
+
+                var distance = SplineUtility.GetNearestPoint(splineContainer.Spline, world, out _, out var t);
+                if (distance <= InfluenceRadius)
+                {
+                    var tangent = splineContainer.Spline.EvaluateTangent(t);
+
+                    var direction = new Vector2(tangent.x, tangent.z);
+                    if (direction.sqrMagnitude > 0.0001f) direction.Normalize();
+
+                    var influence = Mathf.Clamp01(1 - distance / InfluenceRadius);
+
+                    c.r = direction.x * 0.5f + 0.5f;
+                    c.g = direction.y * 0.5f + 0.5f;
+                    c.b = influence;
+                }
+
+                texture.SetPixel(x, y, c);
+            }
+
+            texture.Apply(false, false);
+
+            var textureDirty = false;
+            if (!OutputTexture)
+            {
+                var path = EditorUtility.SaveFilePanelInProject("Save Flow Map", "WaterFlowMap", "asset", string.Empty);
+
+                if (!string.IsNullOrEmpty(path))
+                {
+                    texture.name = Path.GetFileNameWithoutExtension(path);
+                    AssetDatabase.CreateAsset(texture, path);
+                    OutputTexture = AssetDatabase.LoadAssetAtPath<Texture2D>(path);
+                    textureDirty = true;
+                }
+            }
+            else
+            {
+                texture.name = OutputTexture.name;
+                EditorUtility.CopySerialized(texture, OutputTexture);
+                textureDirty = true;
+            }
+
+            if (textureDirty)
+            {
+                EditorUtility.SetDirty(OutputTexture);
+                AssetDatabase.SaveAssets();
+            }
+        }
+#endif
+    }
+}