package com.minelittlepony.unicopia.item; import com.minelittlepony.unicopia.entity.IItemEntity; 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.LivingEntity; import net.minecraft.entity.attribute.EntityAttributeInstance; import net.minecraft.entity.attribute.EntityAttributes; import net.minecraft.entity.damage.DamageSource; import net.minecraft.item.ItemStack; import net.minecraft.particle.ParticleTypes; import net.minecraft.server.world.ServerWorld; import net.minecraft.text.Text; import net.minecraft.text.TranslatableText; import net.minecraft.util.ActionResult; 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) ? new TranslatableText(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, Entity entity) { super.onImpact(projectile, entity); if (!entity.isAttackable()) { return; } ItemStack stack = getAppearanceStack(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(DamageSource.thrownProjectile(projectile, projectile.getOwner()), damage)) { int knockback = EnchantmentHelper.getLevel(Enchantments.KNOCKBACK, stack); final float toRadians = (float)Math.PI / 180F; if (entity instanceof LivingEntity) { ((LivingEntity)entity).takeKnockback( knockback / 2F, MathHelper.sin(projectile.getYaw() * toRadians), -MathHelper.cos(projectile.getYaw() * toRadians) ); if (fire > 0) { entity.setOnFireFor(fire * 4); } float healthDiff = prevHealth - ((LivingEntity)entity).getHealth(); if (projectile.world instanceof ServerWorld && healthDiff > 2) { ((ServerWorld)projectile.world).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 protected void onImpact(MagicProjectileEntity projectile) { ItemStack stack = getAppearanceStack(projectile.getStack()); stack.damage(1, projectile.world.random, null); projectile.dropStack(stack); projectile.world.syncWorldEvent(WorldEvents.BLOCK_BROKEN, projectile.getBlockPos(), Block.getRawIdFromState(Blocks.GLASS.getDefaultState())); } public ItemStack withContents(ItemStack contents) { return setAppearance(getDefaultStack(), contents); } }