update mob behaviour for zombies and spooders

2026-07-02 10:20:16 +02:00
parent 9d8cea70dc
commit e973c29bb1
1 changed files with 91 additions and 0 deletions
@@ -0,0 +1,91 @@
+package net.fretux.adaptivemobs.ai.goals;
+
+import net.fretux.adaptivemobs.ai.AdaptiveAIGoalUtils;
+import net.fretux.adaptivemobs.ai.AdaptivePositioningUtils;
+import net.fretux.adaptivemobs.ai.AdaptiveTargetingUtils;
+import net.minecraft.world.entity.LivingEntity;
+import net.minecraft.world.entity.ai.goal.Goal;
+import net.minecraft.world.entity.monster.Zombie;
+import net.minecraft.world.phys.Vec3;
+
+import java.util.EnumSet;
+import java.util.List;
+import java.util.function.IntSupplier;
+
+public class AdaptiveZombiePackTacticsGoal extends Goal {
+
+    private static final double GOLDEN_ANGLE = Math.PI * (3.0D - Math.sqrt(5.0D));
+
+    private final Zombie zombie;
+    private final IntSupplier tierSupplier;
+    private int cooldown;
+
+    public AdaptiveZombiePackTacticsGoal(Zombie zombie, IntSupplier tierSupplier) {
+        this.zombie = zombie;
+        this.tierSupplier = tierSupplier;
+        setFlags(EnumSet.of(Flag.MOVE, Flag.LOOK));
+    }
+
+    @Override
+    public boolean canUse() {
+        int tier = tierSupplier.getAsInt();
+        LivingEntity target = zombie.getTarget();
+        return tier >= 4
+                && target != null
+                && target.isAlive()
+                && !zombie.isPassenger()
+                && zombie.distanceToSqr(target) <= 9.0D * 9.0D
+                && AdaptiveTargetingUtils.nearbyAttackers(zombie, target, 6.0D) >= 3
+                && --cooldown <= 0;
+    }
+
+    @Override
+    public void start() {
+        int tier = tierSupplier.getAsInt();
+        cooldown = tier >= 5 ? 8 + zombie.getRandom().nextInt(13) : 18 + zombie.getRandom().nextInt(22);
+        LivingEntity target = zombie.getTarget();
+        if (target == null || !target.isAlive()) {
+            return;
+        }
+        zombie.getLookControl().setLookAt(target, 35.0F, 35.0F);
+
+        List<Zombie> pack = zombie.level().getEntitiesOfClass(Zombie.class, zombie.getBoundingBox().inflate(6.0D),
+                other -> other != zombie && other.isAlive() && other.getTarget() == target);
+        if (pack.isEmpty()) {
+            return;
+        }
+
+        Vec3 dest = packSlot(target, pack.size() + 1);
+        dest = dest.add(localSeparation(pack));
+        if (!AdaptivePositioningUtils.isReasonableGround(zombie, dest)) {
+            dest = AdaptivePositioningUtils.sidePosition(zombie, target, 2.5D, zombie.getId() % 2 == 0 ? 1.0D : -1.0D,
+                    tier >= 5 ? 0.12D : 0.0D);
+        }
+        if (AdaptivePositioningUtils.isReasonableGround(zombie, dest)) {
+            zombie.getNavigation().moveTo(dest.x, dest.y, dest.z, tier >= 5 ? 1.12D : 1.04D);
+            AdaptiveAIGoalUtils.debug(zombie, tierSupplier, "zombie pack spread");
+        }
+    }
+
+    private Vec3 packSlot(LivingEntity target, int packSize) {
+        double radius = Math.min(4.0D, 2.0D + packSize * 0.18D);
+        double angle = (Math.floorMod(zombie.getId(), 16) * GOLDEN_ANGLE) + (packSize * 0.17D);
+        return new Vec3(target.getX() + Math.cos(angle) * radius, target.getY(), target.getZ() + Math.sin(angle) * radius);
+    }
+
+    private Vec3 localSeparation(List<Zombie> pack) {
+        double pushX = 0.0D;
+        double pushZ = 0.0D;
+        for (Zombie other : pack) {
+            double distSqr = zombie.distanceToSqr(other);
+            if (distSqr < 0.01D || distSqr > 2.25D) {
+                continue;
+            }
+            Vec3 away = zombie.position().subtract(other.position());
+            double scale = (2.25D - distSqr) / 2.25D;
+            pushX += away.x * scale;
+            pushZ += away.z * scale;
+        }
+        return new Vec3(pushX, 0.0D, pushZ);
+    }
+}