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/Game/WorldGen/Operations/TreeResourcesGeneratorOperation.cs
+++ b/Source/Riversong/Game/WorldGen/Operations/TreeResourcesGeneratorOperation.cs
@@ -0,0 +1,86 @@
+using Cysharp.Threading.Tasks;
+using Unity.Mathematics;
+using UnityEngine;
+using Random = Unity.Mathematics.Random;
+
+namespace DanieleMarotta.RiversongCodeShowcase
+{
+    public class TreeResourcesGeneratorOperation : IWorldGeneratorOperation
+    {
+        [InjectService]
+        private GameConfig _config;
+
+        [InjectService]
+        private ITileSpace _tileSpace;
+
+        public async UniTask Execute(World world)
+        {
+            await GenerateTreesAsync(world);
+        }
+
+        private async UniTask GenerateTreesAsync(World world)
+        {
+            var config = _config.WorldGen;
+            var treeDefinition = await config.Trees.TreeDefinition.LoadAssetAsync<ResourceNodeDefinition>();
+
+            var horizontalResolution = Mathf.FloorToInt(world.Size.x / config.Trees.Spacing);
+            var verticalResolution = Mathf.FloorToInt(world.Size.y / config.Trees.Spacing);
+
+            var random = new Random((uint)world.Seed);
+            var noiseSalt = world.Seed % ushort.MaxValue * 37;
+
+            for (var x = 0; x < horizontalResolution; x++)
+            for (var z = 0; z < verticalResolution; z++)
+            {
+                var treePosition = new Vector3((x + 0.5f) * config.Trees.Spacing, 0, (z + 0.5f) * config.Trees.Spacing);
+                if (z % 2 == 0) treePosition.x += 0.5f * config.Trees.Spacing;
+
+                treePosition.x += Mathf.Lerp(config.Trees.OffsetRange.x, config.Trees.OffsetRange.y, random.NextFloat());
+                treePosition.z += Mathf.Lerp(config.Trees.OffsetRange.x, config.Trees.OffsetRange.y, random.NextFloat());
+
+                var tile = _tileSpace.WorldToTile(treePosition);
+
+                if (!EnoughSpaceAround(world, tile)) continue;
+
+                var h = world.Heightmap.GetValue(tile);
+                if (h == 0) continue;
+
+                treePosition.y = h;
+
+                var noiseSamplePos = new float2(h * 997 + x, noiseSalt + z) * config.Trees.NoiseScale;
+                var n = noise.snoise(noiseSamplePos);
+                if (n < 1 - config.Trees.Coverage && random.NextFloat() < 1 - config.Trees.RandomTreeChance) continue;
+
+                world.RawResources.AddResourceNode(
+                    new ResourceNode
+                    {
+                        Id = 1 + world.RawResources.Count,
+                        DefinitionId = treeDefinition.RuntimeId,
+                        Position = treePosition,
+                        Tile = tile,
+                        Elevation = _tileSpace.GetElevation(treePosition.y),
+                        CanBeDeleted = true
+                    });
+
+                world.BlockMap.AddReason(tile, BlockReason.RawResource);
+            }
+        }
+
+        private static bool EnoughSpaceAround(World world, int2 center)
+        {
+            const int radius = 1;
+
+            for (var x = -radius; x <= radius; x++)
+            for (var y = -radius; y <= radius; y++)
+            {
+                var p = center + new int2(x, y);
+
+                if (!world.Contains(p)) continue;
+
+                if (world.Fertility.GetValue(p).MaxFertility > 0) return false;
+            }
+
+            return true;
+        }
+    }
+}