291 lines
8.5 KiB
Java
291 lines
8.5 KiB
Java
package net.minecraft.entity;
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import javax.annotation.Nullable;
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import net.minecraft.entity.player.EntityPlayer;
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import net.minecraft.init.Items;
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import net.minecraft.item.ItemMonsterPlacer;
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import net.minecraft.item.ItemStack;
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import net.minecraft.nbt.NBTTagCompound;
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import net.minecraft.network.datasync.DataParameter;
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import net.minecraft.network.datasync.DataSerializers;
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import net.minecraft.network.datasync.EntityDataManager;
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import net.minecraft.util.EnumHand;
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import net.minecraft.util.EnumParticleTypes;
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import net.minecraft.world.World;
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public abstract class EntityAgeable extends EntityCreature
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{
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private static final DataParameter<Boolean> BABY = EntityDataManager.<Boolean>createKey(EntityAgeable.class, DataSerializers.BOOLEAN);
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protected int growingAge;
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protected int forcedAge;
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protected int forcedAgeTimer;
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private float ageWidth = -1.0F;
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private float ageHeight;
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public EntityAgeable(World worldIn)
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{
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super(worldIn);
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}
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@Nullable
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public abstract EntityAgeable createChild(EntityAgeable ageable);
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public boolean processInteract(EntityPlayer player, EnumHand hand)
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{
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ItemStack itemstack = player.getHeldItem(hand);
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if (itemstack.getItem() == Items.SPAWN_EGG)
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{
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if (!this.world.isRemote)
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{
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Class <? extends Entity > oclass = EntityList.getClass(ItemMonsterPlacer.getNamedIdFrom(itemstack));
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if (oclass != null && this.getClass() == oclass)
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{
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EntityAgeable entityageable = this.createChild(this);
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if (entityageable != null)
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{
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entityageable.setGrowingAge(-24000);
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entityageable.setLocationAndAngles(this.posX, this.posY, this.posZ, 0.0F, 0.0F);
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this.world.spawnEntity(entityageable);
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if (itemstack.hasDisplayName())
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{
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entityageable.setCustomNameTag(itemstack.getDisplayName());
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}
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if (!player.capabilities.isCreativeMode)
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{
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itemstack.shrink(1);
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}
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}
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}
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}
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return true;
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}
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else
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{
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return false;
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}
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}
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/**
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* Checks if the given item is a spawn egg that spawns the given class of entity.
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*/
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protected boolean holdingSpawnEggOfClass(ItemStack stack, Class <? extends Entity > entityClass)
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{
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if (stack.getItem() != Items.SPAWN_EGG)
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{
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return false;
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}
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else
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{
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Class <? extends Entity > oclass = EntityList.getClass(ItemMonsterPlacer.getNamedIdFrom(stack));
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return oclass != null && entityClass == oclass;
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}
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}
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protected void entityInit()
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{
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super.entityInit();
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this.dataManager.register(BABY, Boolean.valueOf(false));
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}
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/**
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* The age value may be negative or positive or zero. If it's negative, it get's incremented on each tick, if it's
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* positive, it get's decremented each tick. Don't confuse this with EntityLiving.getAge. With a negative value the
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* Entity is considered a child.
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*/
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public int getGrowingAge()
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{
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if (this.world.isRemote)
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{
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return ((Boolean)this.dataManager.get(BABY)).booleanValue() ? -1 : 1;
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}
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else
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{
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return this.growingAge;
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}
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}
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/**
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* Increases this entity's age, optionally updating {@link #forcedAge}. If the entity is an adult (if the entity's
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* age is greater than or equal to 0) then the entity's age will be set to {@link #forcedAge}.
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*
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* @param growthSeconds Number of seconds to grow this entity by. The entity's age will be increased by 20 times
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* this number (i.e. this number converted to ticks).
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* @param updateForcedAge If true, updates {@link #forcedAge} and {@link #forcedAgeTimer}
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*/
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public void ageUp(int growthSeconds, boolean updateForcedAge)
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{
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int i = this.getGrowingAge();
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int j = i;
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i = i + growthSeconds * 20;
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if (i > 0)
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{
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i = 0;
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if (j < 0)
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{
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this.onGrowingAdult();
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}
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}
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int k = i - j;
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this.setGrowingAge(i);
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if (updateForcedAge)
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{
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this.forcedAge += k;
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if (this.forcedAgeTimer == 0)
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{
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this.forcedAgeTimer = 40;
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}
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}
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if (this.getGrowingAge() == 0)
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{
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this.setGrowingAge(this.forcedAge);
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}
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}
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/**
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* Increases this entity's age. If the entity is an adult (if the entity's age is greater than or equal to 0) then
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* the entity's age will be set to {@link #forcedAge}. This method does not update {@link #forcedAge}.
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*/
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public void addGrowth(int growth)
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{
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this.ageUp(growth, false);
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}
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/**
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* The age value may be negative or positive or zero. If it's negative, it get's incremented on each tick, if it's
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* positive, it get's decremented each tick. With a negative value the Entity is considered a child.
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*/
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public void setGrowingAge(int age)
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{
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this.dataManager.set(BABY, Boolean.valueOf(age < 0));
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this.growingAge = age;
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this.setScaleForAge(this.isChild());
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}
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/**
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* (abstract) Protected helper method to write subclass entity data to NBT.
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*/
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public void writeEntityToNBT(NBTTagCompound compound)
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{
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super.writeEntityToNBT(compound);
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compound.setInteger("Age", this.getGrowingAge());
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compound.setInteger("ForcedAge", this.forcedAge);
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}
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/**
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* (abstract) Protected helper method to read subclass entity data from NBT.
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*/
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public void readEntityFromNBT(NBTTagCompound compound)
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{
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super.readEntityFromNBT(compound);
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this.setGrowingAge(compound.getInteger("Age"));
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this.forcedAge = compound.getInteger("ForcedAge");
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}
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public void notifyDataManagerChange(DataParameter<?> key)
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{
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if (BABY.equals(key))
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{
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this.setScaleForAge(this.isChild());
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}
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super.notifyDataManagerChange(key);
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}
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/**
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* Called frequently so the entity can update its state every tick as required. For example, zombies and skeletons
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* use this to react to sunlight and start to burn.
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*/
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public void onLivingUpdate()
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{
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super.onLivingUpdate();
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if (this.world.isRemote)
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{
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if (this.forcedAgeTimer > 0)
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{
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if (this.forcedAgeTimer % 4 == 0)
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{
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this.world.spawnParticle(EnumParticleTypes.VILLAGER_HAPPY, this.posX + (double)(this.rand.nextFloat() * this.width * 2.0F) - (double)this.width, this.posY + 0.5D + (double)(this.rand.nextFloat() * this.height), this.posZ + (double)(this.rand.nextFloat() * this.width * 2.0F) - (double)this.width, 0.0D, 0.0D, 0.0D);
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}
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--this.forcedAgeTimer;
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}
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}
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else
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{
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int i = this.getGrowingAge();
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if (i < 0)
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{
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++i;
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this.setGrowingAge(i);
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if (i == 0)
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{
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this.onGrowingAdult();
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}
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}
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else if (i > 0)
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{
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--i;
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this.setGrowingAge(i);
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}
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}
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}
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/**
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* This is called when Entity's growing age timer reaches 0 (negative values are considered as a child, positive as
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* an adult)
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*/
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protected void onGrowingAdult()
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{
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}
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/**
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* If Animal, checks if the age timer is negative
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*/
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public boolean isChild()
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{
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return this.getGrowingAge() < 0;
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}
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/**
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* "Sets the scale for an ageable entity according to the boolean parameter, which says if it's a child."
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*/
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public void setScaleForAge(boolean child)
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{
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this.setScale(child ? 0.5F : 1.0F);
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}
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/**
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* Sets the width and height of the entity.
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*/
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protected final void setSize(float width, float height)
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{
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boolean flag = this.ageWidth > 0.0F;
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this.ageWidth = width;
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this.ageHeight = height;
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if (!flag)
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{
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this.setScale(1.0F);
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}
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}
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protected final void setScale(float scale)
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{
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super.setSize(this.ageWidth * scale, this.ageHeight * scale);
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}
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} |