Villagers should now be able to open doors added by other mods

src/main/java/ganymedes01/etfuturum/core/handlers/ServerEventHandler.java

@@ -8,6 +8,7 @@
 import ganymedes01.etfuturum.entities.EntityRabbit;
 import ganymedes01.etfuturum.entities.EntityTippedArrow;
 import ganymedes01.etfuturum.entities.EntityZombieVillager;
+import ganymedes01.etfuturum.entities.ai.EntityAIOpenCustomDoor;
 import ganymedes01.etfuturum.inventory.ContainerEnchantment;
 import ganymedes01.etfuturum.items.TippedArrow;
 import ganymedes01.etfuturum.lib.GUIsID;
@@ -28,7 +29,9 @@
 import net.minecraft.enchantment.EnchantmentHelper;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.EntityLivingBase;
+import net.minecraft.entity.ai.EntityAIOpenDoor;
 import net.minecraft.entity.ai.EntityAITargetNonTamed;
+import net.minecraft.entity.ai.EntityAITasks.EntityAITaskEntry;
 import net.minecraft.entity.ai.EntityAITempt;
 import net.minecraft.entity.item.EntityItem;
 import net.minecraft.entity.monster.EntityCreeper;
@@ -424,6 +427,16 @@ public void spawnEvent(EntityJoinWorldEvent event) {
 			EntityWolf wolf = (EntityWolf) event.entity;
 			if (EtFuturum.enableRabbit)
 				wolf.targetTasks.addTask(4, new EntityAITargetNonTamed(wolf, EntityRabbit.class, 200, false));
+		} else if (event.entity instanceof EntityVillager) {
+			EntityVillager villager = (EntityVillager) event.entity;
+			for (Object obj : villager.tasks.taskEntries) {
+				EntityAITaskEntry entry = (EntityAITaskEntry) obj;
+				if (entry.action instanceof EntityAIOpenDoor) {
+					villager.tasks.removeTask(entry.action);
+					villager.tasks.addTask(4, new EntityAIOpenCustomDoor(villager, true));
+					break;
+				}
+			}
 		}
 	}
 

src/main/java/ganymedes01/etfuturum/entities/ai/EntityAICustomDoorInteract.java

@@ -0,0 +1,89 @@
+package ganymedes01.etfuturum.entities.ai;
+
+import net.minecraft.block.Block;
+import net.minecraft.block.BlockDoor;
+import net.minecraft.entity.EntityLiving;
+import net.minecraft.entity.ai.EntityAIBase;
+import net.minecraft.pathfinding.PathEntity;
+import net.minecraft.pathfinding.PathNavigate;
+import net.minecraft.pathfinding.PathPoint;
+import net.minecraft.util.MathHelper;
+
+/*
+ * Copy paste from vanilla and adapted to work with other doors
+ */
+public abstract class EntityAICustomDoorInteract extends EntityAIBase {
+
+	protected EntityLiving theEntity;
+	protected int entityPosX;
+	protected int entityPosY;
+	protected int entityPosZ;
+	protected BlockDoor field_151504_e;
+	boolean hasStoppedDoorInteraction;
+	float entityPositionX;
+	float entityPositionZ;
+
+	public EntityAICustomDoorInteract(EntityLiving p_i1621_1_) {
+		theEntity = p_i1621_1_;
+	}
+
+	@Override
+	public boolean shouldExecute() {
+		if (!theEntity.isCollidedHorizontally)
+			return false;
+		else {
+			PathNavigate pathnavigate = theEntity.getNavigator();
+			PathEntity pathentity = pathnavigate.getPath();
+
+			if (pathentity != null && !pathentity.isFinished() && pathnavigate.getCanBreakDoors()) {
+				for (int i = 0; i < Math.min(pathentity.getCurrentPathIndex() + 2, pathentity.getCurrentPathLength()); ++i) {
+					PathPoint pathpoint = pathentity.getPathPointFromIndex(i);
+					entityPosX = pathpoint.xCoord;
+					entityPosY = pathpoint.yCoord + 1;
+					entityPosZ = pathpoint.zCoord;
+
+					if (theEntity.getDistanceSq(entityPosX, theEntity.posY, entityPosZ) <= 2.25D) {
+						field_151504_e = func_151503_a(entityPosX, entityPosY, entityPosZ);
+
+						if (field_151504_e != null)
+							return true;
+					}
+				}
+
+				entityPosX = MathHelper.floor_double(theEntity.posX);
+				entityPosY = MathHelper.floor_double(theEntity.posY + 1.0D);
+				entityPosZ = MathHelper.floor_double(theEntity.posZ);
+				field_151504_e = func_151503_a(entityPosX, entityPosY, entityPosZ);
+				return field_151504_e != null;
+			} else
+				return false;
+		}
+	}
+
+	@Override
+	public boolean continueExecuting() {
+		return !hasStoppedDoorInteraction;
+	}
+
+	@Override
+	public void startExecuting() {
+		hasStoppedDoorInteraction = false;
+		entityPositionX = (float) (entityPosX + 0.5F - theEntity.posX);
+		entityPositionZ = (float) (entityPosZ + 0.5F - theEntity.posZ);
+	}
+
+	@Override
+	public void updateTask() {
+		float f = (float) (entityPosX + 0.5F - theEntity.posX);
+		float f1 = (float) (entityPosZ + 0.5F - theEntity.posZ);
+		float f2 = entityPositionX * f + entityPositionZ * f1;
+
+		if (f2 < 0.0F)
+			hasStoppedDoorInteraction = true;
+	}
+
+	private BlockDoor func_151503_a(int x, int y, int z) {
+		Block block = theEntity.worldObj.getBlock(x, y, z);
+		return block instanceof BlockDoor ? (BlockDoor) block : null;
+	}
+}

src/main/java/ganymedes01/etfuturum/entities/ai/EntityAIOpenCustomDoor.java

@@ -0,0 +1,41 @@
+package ganymedes01.etfuturum.entities.ai;
+
+import net.minecraft.entity.EntityLiving;
+
+/*
+ * Copy paste from vanilla and adapted to work with other doors
+ */
+public class EntityAIOpenCustomDoor extends EntityAICustomDoorInteract {
+
+	boolean field_75361_i;
+	int field_75360_j;
+
+	public EntityAIOpenCustomDoor(EntityLiving p_i1644_1_, boolean p_i1644_2_) {
+		super(p_i1644_1_);
+		theEntity = p_i1644_1_;
+		field_75361_i = p_i1644_2_;
+	}
+
+	@Override
+	public boolean continueExecuting() {
+		return field_75361_i && field_75360_j > 0 && super.continueExecuting();
+	}
+
+	@Override
+	public void startExecuting() {
+		field_75360_j = 20;
+		field_151504_e.func_150014_a(theEntity.worldObj, entityPosX, entityPosY, entityPosZ, true);
+	}
+
+	@Override
+	public void resetTask() {
+		if (field_75361_i)
+			field_151504_e.func_150014_a(theEntity.worldObj, entityPosX, entityPosY, entityPosZ, false);
+	}
+
+	@Override
+	public void updateTask() {
+		--field_75360_j;
+		super.updateTask();
+	}
+}