我正在尝试制作一个通常与地面碰撞的自定义箭头，当玩家与箭头碰撞时，它会给我一个蓝宝石箭头。问题是，当玩家与箭头（地面上）发生碰撞时，它会给他一个正常的我的箭头，但我想让它给玩家一个定制的SapphireArrow：
EntitySapphire_Arrow：
package tutuicraft3.sapphirecraft;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.projectile.EntityArrow;
import net.minecraft.init.Items;
import net.minecraft.item.ItemStack;
import net.minecraft.world.World;
public class EntitySapphire_Arrow extends EntityArrow {
public EntitySapphire_Arrow(World world) {
super(world);
}
public EntitySapphire_Arrow(World world, double x, double y, double z) {
super(world, x, y, z);
}
public EntitySapphire_Arrow(World world, EntityLivingBase par1Entity, EntityLivingBase par2Entity, float p_i1755_4_, float p_i1755_5_) {
super(world, par1Entity, par2Entity, p_i1755_4_, p_i1755_5_);
}
public EntitySapphire_Arrow(World world, EntityLivingBase entity, float p_i1756_3_) {
super(world, entity, p_i1756_3_);
}
}
ItemSapphire_Bow：
package tutuicraft3.sapphirecraft;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraft.client.renderer.texture.IIconRegister;
import net.minecraft.enchantment.Enchantment;
import net.minecraft.enchantment.EnchantmentHelper;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.EnumAction;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.util.IIcon;
import net.minecraft.world.World;
import net.minecraftforge.common.MinecraftForge;
import net.minecraftforge.event.entity.player.ArrowLooseEvent;
import net.minecraftforge.event.entity.player.ArrowNockEvent;
public class ItemSapphire_Bow extends Item
{
public static final String[] bowPullIconNameArray = new String[] {"pulling_0", "pulling_1", "pulling_2"};
@SideOnly(Side.CLIENT)
private IIcon[] iconArray;
private static final String __OBFID = "CL_00001777";
public ItemSapphire_Bow()
{
this.maxStackSize = 1;
this.setMaxDamage(10000);
}
/**
* called when the player releases the use item button. Args: itemstack, world, entityplayer, itemInUseCount
*/
public void onPlayerStoppedUsing(ItemStack p_77615_1_, World p_77615_2_, EntityPlayer p_77615_3_, int p_77615_4_)
{
int j = this.getMaxItemUseDuration(p_77615_1_) - p_77615_4_;
ArrowLooseEvent event = new ArrowLooseEvent(p_77615_3_, p_77615_1_, j);
MinecraftForge.EVENT_BUS.post(event);
if (event.isCanceled())
{
return;
}
j = event.charge;
boolean flag = p_77615_3_.capabilities.isCreativeMode || EnchantmentHelper.getEnchantmentLevel(Enchantment.infinity.effectId, p_77615_1_) > 0;
if (flag || p_77615_3_.inventory.hasItem(SapphireCraftItems.Sapphire_Arrow))
{
float f = (float)j / 20.0F;
f = (f * f + f * 2.0F) / 3.0F;
if ((double)f < 0.1D)
{
return;
}
if (f > 1.0F)
{
f = 1.0F;
}
EntitySapphire_Arrow entityarrow = new EntitySapphire_Arrow(p_77615_2_, p_77615_3_, f * 2.0F);
if (f == 1.0F)
{
entityarrow.setIsCritical(true);
}
int k = EnchantmentHelper.getEnchantmentLevel(Enchantment.power.effectId, p_77615_1_);
if (k > 0)
{
entityarrow.setDamage(entityarrow.getDamage() + (double)k * 0.5D + 0.5D);
}
entityarrow.setDamage(1000);
int l = EnchantmentHelper.getEnchantmentLevel(Enchantment.punch.effectId, p_77615_1_);
if (l > 0)
{
entityarrow.setKnockbackStrength(l);
}
//if (EnchantmentHelper.getEnchantmentLevel(Enchantment.flame.effectId, p_77615_1_) > 0)
//{
entityarrow.setFire(100);
//}
p_77615_1_.damageItem(1, p_77615_3_);
p_77615_2_.playSoundAtEntity(p_77615_3_, "random.bow", 1.0F, 1.0F / (itemRand.nextFloat() * 0.4F + 1.2F) + f * 0.5F);
if (flag)
{
entityarrow.canBePickedUp = 2;
}
else
{
p_77615_3_.inventory.consumeInventoryItem(SapphireCraftItems.Sapphire_Arrow);
}
if (!p_77615_2_.isRemote)
{
p_77615_2_.spawnEntityInWorld(entityarrow);
}
}
}
public ItemStack onEaten(ItemStack p_77654_1_, World p_77654_2_, EntityPlayer p_77654_3_)
{
return p_77654_1_;
}
/**
* How long it takes to use or consume an item
*/
public int getMaxItemUseDuration(ItemStack p_77626_1_)
{
return 72000;
}
/**
* returns the action that specifies what animation to play when the items is being used
*/
public EnumAction getItemUseAction(ItemStack p_77661_1_)
{
return EnumAction.bow;
}
/**
* Called whenever this item is equipped and the right mouse button is pressed. Args: itemStack, world, entityPlayer
*/
public ItemStack onItemRightClick(ItemStack p_77659_1_, World p_77659_2_, EntityPlayer p_77659_3_)
{
ArrowNockEvent event = new ArrowNockEvent(p_77659_3_, p_77659_1_);
MinecraftForge.EVENT_BUS.post(event);
if (event.isCanceled())
{
return event.result;
}
if (p_77659_3_.capabilities.isCreativeMode || p_77659_3_.inventory.hasItem(SapphireCraftItems.Sapphire_Arrow))
{
p_77659_3_.setItemInUse(p_77659_1_, this.getMaxItemUseDuration(p_77659_1_));
}
return p_77659_1_;
}
/**
* Return the enchantability factor of the item, most of the time is based on material.
*/
public int getItemEnchantability()
{
return 1;
}
@SideOnly(Side.CLIENT)
public void registerIcons(IIconRegister p_94581_1_)
{
this.itemIcon = p_94581_1_.registerIcon("sc:bow_standby");
this.iconArray = new IIcon[bowPullIconNameArray.length];
for (int i = 0; i < this.iconArray.length; ++i)
{
this.iconArray[i] = p_94581_1_.registerIcon("sc:bow_" + bowPullIconNameArray[i]);
}
}
@Override
@SideOnly(Side.CLIENT)
public IIcon getIcon(ItemStack stack, int renderPass, EntityPlayer player, ItemStack usingItem, int useRemaining) {
if(usingItem == null) { return itemIcon; }
int ticksInUse = stack.getMaxItemUseDuration() - useRemaining;
if (ticksInUse > 17) {
return iconArray[2];
} else if (ticksInUse > 13) {
return iconArray[1];
} else if (ticksInUse > 0) {
return iconArray[0];
} else {
return itemIcon;
}
}
/**
* used to cycle through icons based on their used duration, i.e. for the bow
*/
@SideOnly(Side.CLIENT)
public IIcon getItemIconForUseDuration(int p_94599_1_)
{
return this.iconArray[p_94599_1_];
}
}
我想知道是否有人可以帮助我。谢谢！