CustomNPC-Plus/src/main/java/noppes/npcs/items/ItemNpcMovingPath.java

package noppes.npcs.items;

import cpw.mods.fml.common.registry.GameRegistry;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraft.client.renderer.texture.IIconRegister;
import net.minecraft.entity.Entity;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.init.Items;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.util.ChatComponentText;
import net.minecraft.util.MathHelper;
import net.minecraft.world.World;
import noppes.npcs.CustomItems;
import noppes.npcs.CustomNpcsPermissions;
import noppes.npcs.NoppesUtilServer;
import noppes.npcs.config.ConfigMain;
import noppes.npcs.constants.EnumGuiType;
import noppes.npcs.entity.EntityNPCInterface;

import java.util.List;


public class ItemNpcMovingPath extends Item {
    public ItemNpcMovingPath() {
        maxStackSize = 1;
        setCreativeTab(CustomItems.tab);
    }

    @Override
    public ItemStack onItemRightClick(ItemStack par1ItemStack, World par2World, EntityPlayer par3EntityPlayer) {
        if (par2World.isRemote || !CustomNpcsPermissions.Instance.hasPermission(par3EntityPlayer, CustomNpcsPermissions.TOOL_MOUNTER))
            return par1ItemStack;
        EntityNPCInterface npc = getNpc(par1ItemStack, par2World);
        if (npc != null)
            NoppesUtilServer.sendOpenGui(par3EntityPlayer, EnumGuiType.MovingPath, npc);
        return par1ItemStack;
    }

    @Override
    public boolean onItemUse(ItemStack par1ItemStack, EntityPlayer player, World par3World, int x, int y, int z, int par7, float par8, float par9, float par10) {
        if (par3World.isRemote || !CustomNpcsPermissions.Instance.hasPermission(player, CustomNpcsPermissions.TOOL_MOUNTER))
            return false;
        EntityNPCInterface npc = getNpc(par1ItemStack, par3World);
        if (npc == null)
            return false;
        List<int[]> list = npc.ais.getMovingPath();
        int[] pos = list.get(list.size() - 1);
        list.add(new int[]{x, y, z});

        double d3 = x - pos[0];
        double d4 = y - pos[1];
        double d5 = z - pos[2];
        double distance = (double) MathHelper.sqrt_double(d3 * d3 + d4 * d4 + d5 * d5);

        player.addChatMessage(new ChatComponentText("Added point x:" + x + " y:" + y + " z:" + z + " to npc " + npc.getCommandSenderName()));
        if (distance > ConfigMain.NpcNavRange)
            player.addChatMessage(new ChatComponentText("Warning: point is too far away from previous point. Max block walk distance = " + ConfigMain.NpcNavRange));

        return true;
    }

    private EntityNPCInterface getNpc(ItemStack item, World world) {
        if (world.isRemote || item.stackTagCompound == null)
            return null;

        Entity entity = world.getEntityByID(item.stackTagCompound.getInteger("NPCID"));
        if (entity == null || !(entity instanceof EntityNPCInterface))
            return null;

        return (EntityNPCInterface) entity;
    }

    @Override
    public int getColorFromItemStack(ItemStack par1ItemStack, int par2) {
        return 0x8B4513;
    }

    @Override
    public boolean requiresMultipleRenderPasses() {
        return true;
    }

    @SideOnly(Side.CLIENT)
    @Override
    public void registerIcons(IIconRegister par1IconRegister) {
        this.itemIcon = Items.iron_sword.getIconFromDamage(0);
    }

    @Override
    public Item setUnlocalizedName(String name) {
        GameRegistry.registerItem(this, name);
        return super.setUnlocalizedName(name);
    }
}