162 lines
8.0 KiB
Java
162 lines
8.0 KiB
Java
package org.bukkit.craftbukkit.projectiles;
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import java.util.Random;
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import net.minecraft.server.BlockDispenser;
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import net.minecraft.server.EntityArrow;
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import net.minecraft.server.EntityEgg;
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import net.minecraft.server.EntityEnderPearl;
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import net.minecraft.server.EntityFireball;
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import net.minecraft.server.EntityPotion;
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import net.minecraft.server.EntityProjectile;
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import net.minecraft.server.EntitySmallFireball;
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import net.minecraft.server.EntitySnowball;
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import net.minecraft.server.EntitySpectralArrow;
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import net.minecraft.server.EntityThrownExpBottle;
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import net.minecraft.server.EntityTippedArrow;
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import net.minecraft.server.EntityTypes;
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import net.minecraft.server.EnumDirection;
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import net.minecraft.server.IPosition;
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import net.minecraft.server.IProjectile;
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import net.minecraft.server.MathHelper;
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import net.minecraft.server.SourceBlock;
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import net.minecraft.server.TileEntityDispenser;
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import org.apache.commons.lang.Validate;
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import org.bukkit.Material;
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import org.bukkit.block.Block;
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import org.bukkit.craftbukkit.inventory.CraftItemStack;
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import org.bukkit.craftbukkit.potion.CraftPotionUtil;
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import org.bukkit.entity.AbstractArrow;
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import org.bukkit.entity.Arrow;
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import org.bukkit.entity.Egg;
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import org.bukkit.entity.EnderPearl;
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import org.bukkit.entity.Fireball;
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import org.bukkit.entity.LingeringPotion;
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import org.bukkit.entity.Projectile;
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import org.bukkit.entity.SmallFireball;
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import org.bukkit.entity.Snowball;
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import org.bukkit.entity.SpectralArrow;
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import org.bukkit.entity.ThrownExpBottle;
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import org.bukkit.entity.ThrownPotion;
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import org.bukkit.entity.TippedArrow;
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import org.bukkit.entity.WitherSkull;
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import org.bukkit.inventory.ItemStack;
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import org.bukkit.potion.PotionData;
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import org.bukkit.potion.PotionType;
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import org.bukkit.projectiles.BlockProjectileSource;
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import org.bukkit.util.Vector;
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public class CraftBlockProjectileSource implements BlockProjectileSource {
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private final TileEntityDispenser dispenserBlock;
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public CraftBlockProjectileSource(TileEntityDispenser dispenserBlock) {
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this.dispenserBlock = dispenserBlock;
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}
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@Override
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public Block getBlock() {
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return dispenserBlock.getWorld().getWorld().getBlockAt(dispenserBlock.getPosition().getX(), dispenserBlock.getPosition().getY(), dispenserBlock.getPosition().getZ());
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}
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@Override
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public <T extends Projectile> T launchProjectile(Class<? extends T> projectile) {
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return launchProjectile(projectile, null);
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}
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@Override
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public <T extends Projectile> T launchProjectile(Class<? extends T> projectile, Vector velocity) {
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Validate.isTrue(getBlock().getType() == Material.DISPENSER, "Block is no longer dispenser");
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// Copied from BlockDispenser.dispense()
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SourceBlock isourceblock = new SourceBlock(dispenserBlock.getWorld(), dispenserBlock.getPosition());
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// Copied from DispenseBehaviorProjectile
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IPosition iposition = BlockDispenser.a(isourceblock);
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EnumDirection enumdirection = (EnumDirection) isourceblock.e().get(BlockDispenser.FACING);
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net.minecraft.server.World world = dispenserBlock.getWorld();
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net.minecraft.server.Entity launch = null;
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if (Snowball.class.isAssignableFrom(projectile)) {
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launch = new EntitySnowball(world, iposition.getX(), iposition.getY(), iposition.getZ());
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} else if (Egg.class.isAssignableFrom(projectile)) {
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launch = new EntityEgg(world, iposition.getX(), iposition.getY(), iposition.getZ());
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} else if (EnderPearl.class.isAssignableFrom(projectile)) {
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launch = new EntityEnderPearl(world, null);
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launch.setPosition(iposition.getX(), iposition.getY(), iposition.getZ());
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} else if (ThrownExpBottle.class.isAssignableFrom(projectile)) {
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launch = new EntityThrownExpBottle(world, iposition.getX(), iposition.getY(), iposition.getZ());
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} else if (ThrownPotion.class.isAssignableFrom(projectile)) {
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if (LingeringPotion.class.isAssignableFrom(projectile)) {
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launch = new EntityPotion(world, iposition.getX(), iposition.getY(), iposition.getZ());
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((EntityPotion) launch).setItem(CraftItemStack.asNMSCopy(new ItemStack(org.bukkit.Material.LINGERING_POTION, 1)));
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} else {
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launch = new EntityPotion(world, iposition.getX(), iposition.getY(), iposition.getZ());
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((EntityPotion) launch).setItem(CraftItemStack.asNMSCopy(new ItemStack(org.bukkit.Material.SPLASH_POTION, 1)));
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}
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} else if (AbstractArrow.class.isAssignableFrom(projectile)) {
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if (TippedArrow.class.isAssignableFrom(projectile)) {
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launch = new EntityTippedArrow(world, iposition.getX(), iposition.getY(), iposition.getZ());
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((EntityTippedArrow) launch).setType(CraftPotionUtil.fromBukkit(new PotionData(PotionType.WATER, false, false)));
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} else if (SpectralArrow.class.isAssignableFrom(projectile)) {
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launch = new EntitySpectralArrow(world, iposition.getX(), iposition.getY(), iposition.getZ());
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} else {
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launch = new EntityTippedArrow(world, iposition.getX(), iposition.getY(), iposition.getZ());
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}
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((EntityArrow) launch).fromPlayer = EntityArrow.PickupStatus.ALLOWED;
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((EntityArrow) launch).projectileSource = this;
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} else if (Fireball.class.isAssignableFrom(projectile)) {
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double d0 = iposition.getX() + (double) ((float) enumdirection.getAdjacentX() * 0.3F);
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double d1 = iposition.getY() + (double) ((float) enumdirection.getAdjacentY() * 0.3F);
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double d2 = iposition.getZ() + (double) ((float) enumdirection.getAdjacentZ() * 0.3F);
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Random random = world.random;
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double d3 = random.nextGaussian() * 0.05D + (double) enumdirection.getAdjacentX();
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double d4 = random.nextGaussian() * 0.05D + (double) enumdirection.getAdjacentY();
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double d5 = random.nextGaussian() * 0.05D + (double) enumdirection.getAdjacentZ();
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if (SmallFireball.class.isAssignableFrom(projectile)) {
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launch = new EntitySmallFireball(world, null, d0, d1, d2);
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} else if (WitherSkull.class.isAssignableFrom(projectile)) {
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launch = EntityTypes.WITHER_SKULL.a(world);
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launch.setPosition(d0, d1, d2);
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double d6 = (double) MathHelper.sqrt(d3 * d3 + d4 * d4 + d5 * d5);
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((EntityFireball) launch).dirX = d3 / d6 * 0.1D;
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((EntityFireball) launch).dirY = d4 / d6 * 0.1D;
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((EntityFireball) launch).dirZ = d5 / d6 * 0.1D;
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} else {
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launch = EntityTypes.FIREBALL.a(world);
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launch.setPosition(d0, d1, d2);
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double d6 = (double) MathHelper.sqrt(d3 * d3 + d4 * d4 + d5 * d5);
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((EntityFireball) launch).dirX = d3 / d6 * 0.1D;
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((EntityFireball) launch).dirY = d4 / d6 * 0.1D;
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((EntityFireball) launch).dirZ = d5 / d6 * 0.1D;
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}
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((EntityFireball) launch).projectileSource = this;
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}
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Validate.notNull(launch, "Projectile not supported");
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if (launch instanceof IProjectile) {
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if (launch instanceof EntityProjectile) {
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((EntityProjectile) launch).projectileSource = this;
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}
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// Values from DispenseBehaviorProjectile
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float a = 6.0F;
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float b = 1.1F;
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if (launch instanceof EntityPotion || launch instanceof ThrownExpBottle) {
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// Values from respective DispenseBehavior classes
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a *= 0.5F;
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b *= 1.25F;
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}
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// Copied from DispenseBehaviorProjectile
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((IProjectile) launch).shoot((double) enumdirection.getAdjacentX(), (double) ((float) enumdirection.getAdjacentY() + 0.1F), (double) enumdirection.getAdjacentZ(), b, a);
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}
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if (velocity != null) {
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((T) launch.getBukkitEntity()).setVelocity(velocity);
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}
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world.addEntity(launch);
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return (T) launch.getBukkitEntity();
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}
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}
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