Unicopia/src/main/java/com/minelittlepony/unicopia/item/SpellbookItem.java
2020-04-22 17:55:05 +02:00

105 lines
2.9 KiB
Java

package com.minelittlepony.unicopia.item;
import javax.annotation.Nullable;
import com.minelittlepony.unicopia.EquinePredicates;
import com.minelittlepony.unicopia.entity.SpellbookEntity;
import com.minelittlepony.unicopia.entity.UEntities;
import com.minelittlepony.unicopia.magic.Dispensable;
import net.minecraft.block.DispenserBlock;
import net.minecraft.entity.player.PlayerEntity;
import net.minecraft.item.BookItem;
import net.minecraft.item.Item;
import net.minecraft.item.ItemGroup;
import net.minecraft.item.ItemStack;
import net.minecraft.item.ItemUsageContext;
import net.minecraft.util.ActionResult;
import net.minecraft.util.TypedActionResult;
import net.minecraft.util.math.BlockPointer;
import net.minecraft.util.math.BlockPos;
import net.minecraft.util.math.Direction;
import net.minecraft.world.World;
public class SpellbookItem extends BookItem implements Dispensable {
public SpellbookItem() {
super(new Item.Settings()
.maxCount(1)
.group(ItemGroup.BREWING));
setDispenseable();
}
@Override
public ActionResult useOnBlock(ItemUsageContext context) {
@Nullable
PlayerEntity player = context.getPlayer();
if (!context.getWorld().isClient && EquinePredicates.MAGI.test(player)) {
BlockPos pos = context.getBlockPos().offset(context.getSide());
double diffX = player.getX() - (pos.getX() + 0.5);
double diffZ = player.getZ() - (pos.getZ() + 0.5);
float yaw = (float)Math.toDegrees(Math.atan2(diffZ, diffX) + Math.PI);
placeBook(context.getWorld(), pos.getX(), pos.getY(), pos.getZ(), yaw);
if (!player.abilities.creativeMode) {
player.getStackInHand(context.getHand()).decrement(1);
}
return ActionResult.SUCCESS;
}
return ActionResult.PASS;
}
private static void placeBook(World world, int x, int y, int z, float yaw) {
SpellbookEntity book = UEntities.SPELLBOOK.create(world);
book.updatePositionAndAngles(x + 0.5, y, z + 0.5, yaw, 0);
book.prevYaw = yaw;
world.spawnEntity(book);
}
@Override
public TypedActionResult<ItemStack> dispenseStack(BlockPointer source, ItemStack stack) {
Direction facing = source.getBlockState().get(DispenserBlock.FACING);
BlockPos pos = source.getBlockPos().offset(facing);
//0deg == SOUTH
//90deg == WEST
//180deg == NORTH
//270deg == EAST
/*switch (facing) {
case NORTH: yaw -= 90; break;
case SOUTH: yaw += 90; break;
case EAST: yaw += 180; break;
default:
}*/
int yaw = facing.getOpposite().getHorizontal() * 90;
placeBook(source.getWorld(), pos.getX(), pos.getY(), pos.getZ(), yaw);
stack.decrement(1);
return new TypedActionResult<>(ActionResult.SUCCESS, stack);
}
}