Unicopia/src/main/java/com/minelittlepony/unicopia/item/FilledJarItem.java
2023-06-03 12:40:54 +01:00

136 lines
4.9 KiB
Java

package com.minelittlepony.unicopia.item;
import com.minelittlepony.unicopia.entity.IItemEntity;
import com.minelittlepony.unicopia.entity.Living;
import com.minelittlepony.unicopia.projectile.MagicProjectileEntity;
import net.minecraft.block.Block;
import net.minecraft.block.Blocks;
import net.minecraft.enchantment.EnchantmentHelper;
import net.minecraft.enchantment.Enchantments;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityGroup;
import net.minecraft.entity.EquipmentSlot;
import net.minecraft.entity.FlyingItemEntity;
import net.minecraft.entity.LivingEntity;
import net.minecraft.entity.attribute.EntityAttributeInstance;
import net.minecraft.entity.attribute.EntityAttributes;
import net.minecraft.item.ItemStack;
import net.minecraft.particle.ParticleTypes;
import net.minecraft.server.world.ServerWorld;
import net.minecraft.text.Text;
import net.minecraft.util.ActionResult;
import net.minecraft.util.hit.EntityHitResult;
import net.minecraft.util.math.MathHelper;
import net.minecraft.world.WorldEvents;
public class FilledJarItem extends JarItem implements ChameleonItem {
public FilledJarItem(Settings settings) {
super(settings, false, false, false);
}
@Override
public Text getName(ItemStack stack) {
return hasAppearance(stack) ? Text.translatable(getTranslationKey(stack), getAppearanceStack(stack).getName()) : UItems.EMPTY_JAR.getName(UItems.EMPTY_JAR.getDefaultStack());
}
@Override
public boolean isFullyDisguised() {
return false;
}
@Override
public ActionResult onGroundTick(IItemEntity item) {
return ActionResult.PASS;
}
@Override
protected float getProjectileDamage(ItemStack stack) {
return 0;
}
@Override
public void onImpact(MagicProjectileEntity projectile, EntityHitResult hit) {
super.onImpact(projectile, hit);
Entity entity = hit.getEntity();
if (!entity.isAttackable() || !(projectile instanceof FlyingItemEntity)) {
return;
}
ItemStack stack = getAppearanceStack(((FlyingItemEntity)projectile).getStack());
boolean onFire = false;
float prevHealth = 0.0F;
int fire = EnchantmentHelper.getLevel(Enchantments.FIRE_ASPECT, stack);
if (entity instanceof LivingEntity) {
prevHealth = ((LivingEntity)entity).getHealth();
if (fire > 0 && !entity.isOnFire()) {
onFire = true;
entity.setOnFireFor(1);
}
}
float damage = EnchantmentHelper.getAttackDamage(stack, entity instanceof LivingEntity ? ((LivingEntity)entity).getGroup() : EntityGroup.DEFAULT);
EntityAttributeInstance instance = new EntityAttributeInstance(EntityAttributes.GENERIC_ATTACK_DAMAGE, i -> {});
stack.getAttributeModifiers(EquipmentSlot.MAINHAND).get(EntityAttributes.GENERIC_ATTACK_DAMAGE).forEach(modifier -> {
instance.addTemporaryModifier(modifier);
});
damage += instance.getValue();
if (entity.damage(entity.getDamageSources().thrown(projectile, projectile.getOwner()), damage)) {
int knockback = EnchantmentHelper.getLevel(Enchantments.KNOCKBACK, stack);
final float toRadians = (float)Math.PI / 180F;
if (entity instanceof LivingEntity living) {
living.takeKnockback(
knockback / 2F,
MathHelper.sin(projectile.getYaw() * toRadians),
-MathHelper.cos(projectile.getYaw() * toRadians)
);
Living.updateVelocity(living);
if (fire > 0) {
entity.setOnFireFor(fire * 4);
}
float healthDiff = prevHealth - ((LivingEntity)entity).getHealth();
if (projectile.getWorld() instanceof ServerWorld && healthDiff > 2) {
((ServerWorld)projectile.getWorld()).spawnParticles(ParticleTypes.DAMAGE_INDICATOR, entity.getX(), entity.getBodyY(0.5D), entity.getZ(), (int)(healthDiff / 2F), 0.1, 0, 0.1, 0.2);
}
} else {
entity.addVelocity(
-MathHelper.sin(projectile.getYaw() * toRadians) * knockback / 2F, 0.1D,
MathHelper.cos(projectile.getYaw() * toRadians) * knockback / 2F
);
}
} else {
if (onFire) {
entity.setOnFire(false);
}
}
}
@Override
public void onImpact(MagicProjectileEntity projectile) {
ItemStack stack = getAppearanceStack(projectile.getStack());
stack.damage(1, projectile.getWorld().random, null);
projectile.dropStack(stack);
projectile.getWorld().syncWorldEvent(WorldEvents.BLOCK_BROKEN, projectile.getBlockPos(), Block.getRawIdFromState(Blocks.GLASS.getDefaultState()));
}
public ItemStack withContents(ItemStack contents) {
return setAppearance(getDefaultStack(), contents);
}
}