ShotgunExtension和CruiseMissileProperties

2025-08-01 01:41:38 +08:00
parent 892e155207
commit e34397e63b
9 changed files with 503 additions and 28 deletions
--- a/Source/WulaFallenEmpire/Verb/Trackingbullet.cs
+++ b/Source/WulaFallenEmpire/Verb/Trackingbullet.cs
@@ -0,0 +1,178 @@
+using RimWorld;
+using System.Collections.Generic;
+using System.Linq;
+using UnityEngine;
+using Verse;
+
+namespace WulaFallenEmpire
+{
+    public class CruiseMissileProperties : DefModExtension
+    {
+        public DamageDef customDamageDef;
+        public int customDamageAmount = 5;
+        public float customExplosionRadius = 1.1f;
+        public SoundDef customSoundExplode;
+
+        public bool useSubExplosions = true;
+        public int subExplosionCount = 3;
+        public float subExplosionRadius = 1.9f;
+        public int subExplosionDamage = 30;
+        public float subExplosionSpread = 6f;
+        public DamageDef subDamageDef;
+        public SoundDef subSoundExplode;
+
+    }
+
+    public class Projectile_CruiseMissile : Projectile_Explosive
+    {
+        private CruiseMissileProperties settings;
+        private bool flag2;
+        private Vector3 Randdd;
+        private Vector3 position2;
+        public Vector3 ExPos;
+
+        public override void SpawnSetup(Map map, bool respawningAfterLoad)
+        {
+            base.SpawnSetup(map, respawningAfterLoad);
+            settings = def.GetModExtension<CruiseMissileProperties>() ?? new CruiseMissileProperties();
+        }
+
+        private void RandFactor()
+        {
+            // 减少垂直方向随机性，调整水平随机范围
+            Randdd = new Vector3(
+                Rand.Range(-3f, 3f),  // 减小水平随机范围
+                Rand.Range(8f, 12f), // 降低基础高度
+                Rand.Range(-3f, 3f)
+            );
+            flag2 = true;
+        }
+
+        public Vector3 BPos(float t)
+        {
+            if (!flag2) RandFactor();
+
+            // 计算水平距离
+            float horizontalDistance = Vector3.Distance(new Vector3(origin.x, 0, origin.z),
+                new Vector3(destination.x, 0, destination.z));
+
+            // 动态调整控制点高度
+            float arcHeight = Mathf.Clamp(horizontalDistance * 0.2f, 8f, 15f);
+
+            Vector3 a = origin + Vector3.forward * horizontalDistance * 0.2f + new Vector3(0f, arcHeight, 0f);
+            Vector3 a2 = destination - Vector3.forward * horizontalDistance * 0.2f + new Vector3(0f, arcHeight, 0f);
+
+            return BezierCurve(origin, a, a2, destination, t);
+        }
+
+        private Vector3 BezierCurve(Vector3 p0, Vector3 p1, Vector3 p2, Vector3 p3, float t)
+        {
+            float u = 1 - t;
+            return u * u * u * p0
+                + 3 * u * u * t * p1
+                + 3 * u * t * t * p2
+                + t * t * t * p3;
+        }
+
+        private IEnumerable<IntVec3> GetValidCells(Map map)
+        {
+            if (map == null || settings == null) yield break;
+
+            var cells = GenRadial.RadialCellsAround(
+                base.Position,
+                settings.subExplosionSpread,
+                false
+            ).Where(c => c.InBounds(map));
+
+            var randomizedCells = cells.InRandomOrder().Take(settings.subExplosionCount);
+
+            foreach (var cell in randomizedCells)
+            {
+                yield return cell;
+            }
+        }
+
+        protected override void Impact(Thing hitThing, bool blockedByShield = false)
+        {
+            var map = base.Map;
+            base.Impact(hitThing, blockedByShield);
+
+            DoExplosion(
+                base.Position,
+                map,
+                settings.customExplosionRadius,
+                settings.customDamageDef,
+                settings.customDamageAmount,
+                settings.customSoundExplode
+            );
+
+            if (settings.useSubExplosions)
+            {
+                foreach (var cell in GetValidCells(map))
+                {
+                    DoExplosion(
+                        cell,
+                        map,
+                        settings.subExplosionRadius,
+                        settings.subDamageDef,
+                        settings.subExplosionDamage,
+                        settings.subSoundExplode
+                    );
+                }
+            }
+        }
+
+        private void DoExplosion(IntVec3 pos, Map map, float radius, DamageDef dmgDef, int dmgAmount, SoundDef sound)
+        {
+            GenExplosion.DoExplosion(
+                pos,
+                map,
+                radius,
+                dmgDef,
+                launcher,
+                dmgAmount,
+                ArmorPenetration,
+                sound
+            );
+        }
+
+        protected override void DrawAt(Vector3 position, bool flip = false)
+        {
+            position2 = BPos(DistanceCoveredFraction - 0.01f);
+            ExPos = position = BPos(DistanceCoveredFraction);
+            base.DrawAt(position, flip);
+        }
+
+        protected override void Tick()
+        {
+            if (intendedTarget.Thing is Pawn pawn && pawn.Spawned && !pawn.Destroyed)
+            {
+                if ((pawn.Dead || pawn.Downed) && DistanceCoveredFraction < 0.6f)
+                {
+                    FindNextTarget(pawn.DrawPos);
+                }
+                destination = pawn.DrawPos;
+            }
+            base.Tick();
+        }
+
+        private void FindNextTarget(Vector3 center)
+        {
+            var map = base.Map;
+            if (map == null) return;
+
+            foreach (IntVec3 cell in GenRadial.RadialCellsAround(IntVec3.FromVector3(center), 7f, true))
+            {
+                if (!cell.InBounds(map)) continue;
+
+                Pawn target = cell.GetFirstPawn(map);
+                if (target != null && target.Faction.HostileTo(launcher?.Faction))
+                {
+                    intendedTarget = target;
+                    return;
+                }
+            }
+            intendedTarget = CellRect.CenteredOn(IntVec3.FromVector3(center), 7).RandomCell;
+        }
+    }
+}