修追踪弹没目标

1.6/1.6/Defs/ThingDefs_Misc/Weapons/WULA_FE_Missile_Weapon.xml

@@ -42,6 +42,11 @@
         <soundCast>RocketswarmLauncher_Fire</soundCast>
         <soundCastTail>GunTail_Heavy</soundCastTail>
         <muzzleFlashScale>12</muzzleFlashScale>
+        <targetParams>
+          <canTargetPawns>true</canTargetPawns>
+          <canTargetLocations>true</canTargetLocations>
+          <canTargetBuildings>true</canTargetBuildings>
+        </targetParams>
       </li>
     </verbs>
     <costList Inherit="False">

Source/WulaFallenEmpire/Projectiles/Projectile_ExplosiveTrackingBullet.cs

@@ -50,7 +50,7 @@ namespace WulaFallenEmpire
 
         protected override void Impact(Thing hitThing, bool blockedByShield = false)
         {
-            bool flag = blockedByShield || ExplosiveDef.explosionDelay == 0; // Use ExplosiveDef for explosionDelay
+            bool flag = hitThing == null || blockedByShield || ExplosiveDef.explosionDelay == 0; // Use ExplosiveDef for explosionDelay
             if (flag)
             {
                 this.Explode();

Source/WulaFallenEmpire/Projectiles/Projectile_TrackingBullet.cs

@@ -84,8 +84,13 @@ namespace WulaFallenEmpire
 
             if (homing)
             {
+                // 首先检查目标是否是一个有效的 Thing
+                if (!intendedTarget.HasThing)
+                {
+                    homing = false; // 如果目标是地面，则禁用追踪
+                }
                 // 如果目标消失或距离太远，停止追踪
-                if (!intendedTarget.IsValid || !intendedTarget.Thing.Spawned || (intendedTarget.Cell.ToVector3() - ExactPosition).magnitude > def.projectile.speed * 2f) // 假设2倍速度为最大追踪距离
+                else if (!intendedTarget.IsValid || !intendedTarget.Thing.Spawned || (intendedTarget.Cell.ToVector3() - ExactPosition).magnitude > def.projectile.speed * 2f) // 假设2倍速度为最大追踪距离
                 {
                     homing = false;
                     destroyTicksAfterLosingTrack = TrackingDef.destroyTicksAfterLosingTrack.RandomInRange; // 失去追踪后根据XML配置的范围自毁