Allow /npc equip to work with Striders, fix a bug with /npc look

main/src/main/java/net/citizensnpcs/editor/EquipmentEditor.java

@@ -100,7 +100,11 @@ public class EquipmentEditor extends Editor {
     private static final Map<EntityType, Equipper> EQUIPPERS = Maps.newEnumMap(EntityType.class);
 
     static {
-        EQUIPPER_GUIS.put(EntityType.PIG, PigEquipperGUI.class);
+        EQUIPPER_GUIS.put(EntityType.PIG, SteerableEquipperGUI.class);
+        try {
+            EQUIPPER_GUIS.put(EntityType.valueOf("STRIDER"), SteerableEquipperGUI.class);
+        } catch (IllegalArgumentException ex) {
+        }
         EQUIPPER_GUIS.put(EntityType.ENDERMAN, EndermanEquipperGUI.class);
         EQUIPPERS.put(EntityType.SHEEP, new SheepEquipper());
         EQUIPPERS.put(EntityType.HORSE, new HorseEquipper());

main/src/main/java/net/citizensnpcs/editor/SteerableEquipperGUI.java

@@ -33,7 +33,7 @@ import net.citizensnpcs.trait.Saddle;
                 compatMaterial = { "BARRIER", "FIRE" },
                 title = "<4>Unused") },
         value = "xxx")
-public class PigEquipperGUI extends InventoryMenuPage {
+public class SteerableEquipperGUI extends InventoryMenuPage {
     @InjectContext
     private NPC npc;
     @MenuSlot(slot = { 0, 1 })

main/src/main/java/net/citizensnpcs/trait/Saddle.java

@@ -1,6 +1,7 @@
 package net.citizensnpcs.trait;
 
 import org.bukkit.entity.Pig;
+import org.bukkit.entity.Steerable;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.player.PlayerInteractEntityEvent;
 
@@ -8,6 +9,7 @@ import net.citizensnpcs.api.CitizensAPI;
 import net.citizensnpcs.api.persistence.Persist;
 import net.citizensnpcs.api.trait.Trait;
 import net.citizensnpcs.api.trait.TraitName;
+import net.citizensnpcs.util.Util;
 
 /**
  * Persists saddle metadata.
@@ -16,9 +18,9 @@ import net.citizensnpcs.api.trait.TraitName;
  */
 @TraitName("saddle")
 public class Saddle extends Trait implements Toggleable {
-    private boolean pig;
     @Persist("")
     private boolean saddle;
+    private boolean steerable;
 
     public Saddle() {
         super("saddle");
@@ -26,24 +28,27 @@ public class Saddle extends Trait implements Toggleable {
 
     @EventHandler
     public void onPlayerInteractEntity(PlayerInteractEntityEvent event) {
-        if (pig && npc.equals(CitizensAPI.getNPCRegistry().getNPC(event.getRightClicked())))
+        if (steerable && npc.equals(CitizensAPI.getNPCRegistry().getNPC(event.getRightClicked()))) {
             event.setCancelled(true);
+        }
     }
 
     @Override
     public void onSpawn() {
-        if (npc.getEntity() instanceof Pig) {
-            ((Pig) npc.getEntity()).setSaddle(saddle);
-            pig = true;
-        } else
-            pig = false;
+        if (Util.optionalEntitySet("PIG", "STRIDER").contains(npc.getEntity().getType())) {
+            steerable = true;
+            updateSaddleState();
+        } else {
+            steerable = false;
+        }
     }
 
     @Override
     public boolean toggle() {
         saddle = !saddle;
-        if (pig)
-            ((Pig) npc.getEntity()).setSaddle(saddle);
+        if (steerable) {
+            updateSaddleState();
+        }
         return saddle;
     }
 
@@ -52,7 +57,22 @@ public class Saddle extends Trait implements Toggleable {
         return "Saddle{" + saddle + "}";
     }
 
+    private void updateSaddleState() {
+        if (SUPPORT_STEERABLE) {
+            try {
+                ((Steerable) npc.getEntity()).setSaddle(saddle);
+            } catch (Throwable t) {
+                SUPPORT_STEERABLE = false;
+                ((Pig) npc.getEntity()).setSaddle(saddle);
+            }
+        } else {
+            ((Pig) npc.getEntity()).setSaddle(saddle);
+        }
+    }
+
     public boolean useSaddle() {
         return saddle;
     }
+
+    private static boolean SUPPORT_STEERABLE = true;
 }

v1_18_R2/src/main/java/net/citizensnpcs/nms/v1_18_R2/util/PlayerLookControl.java

@@ -68,7 +68,7 @@ public class PlayerLookControl {
 
     protected float getXRotD() {
         double var0 = this.tx - this.a.getX();
-        double var2 = this.ty - this.a.getEyeY();
+        double var2 = this.ty - (this.a.getY() + this.a.getEyeY());
         double var4 = this.tz - this.a.getZ();
         double var6 = Mth.sqrt((float) (var0 * var0 + var4 * var4));
         return (float) (-(Mth.atan2(var2, var6) * 57.2957763671875D));