Initial Combat Implementation

2026-05-31 21:35:12 -07:00
parent 7fa77ce821
commit 1f647dd5e1
166 changed files with 93337 additions and 91 deletions
@@ -0,0 +1,42 @@
+using Unity.Collections;
+using Unity.Entities;
+
+namespace ProjectM.Simulation
+{
+    /// <summary>
+    /// Pure, deterministic folding of a StatModifier set into an effective value for one StatTarget:
+    /// effective = (base + sum flat) * (1 + sum percentAdd) * product(1 + percentMult).
+    /// Order-independent within each op class, Burst-friendly, and unit-tested like AutoTarget.Resolve.
+    /// Returns the raw fold; consumers clamp domain bounds (e.g. cooldown >= 1 tick).
+    /// </summary>
+    public static class StatMath
+    {
+        public static float Apply(float baseValue, StatTarget target, in DynamicBuffer<StatModifier> mods)
+        {
+            return Apply(baseValue, target, mods.AsNativeArray());
+        }
+
+        public static float Apply(float baseValue, StatTarget target, in NativeArray<StatModifier> mods)
+        {
+            float flat = 0f;
+            float percentAdd = 0f;
+            float percentMult = 1f;
+            byte t = (byte)target;
+
+            for (int i = 0; i < mods.Length; i++)
+            {
+                var m = mods[i];
+                if (m.Target != t)
+                    continue;
+                switch ((ModOp)m.Op)
+                {
+                    case ModOp.Flat: flat += m.Value; break;
+                    case ModOp.PercentAdd: percentAdd += m.Value; break;
+                    case ModOp.PercentMult: percentMult *= 1f + m.Value; break;
+                }
+            }
+
+            return (baseValue + flat) * (1f + percentAdd) * percentMult;
+        }
+    }
+}