CP_Sorter.java

package co.d3s.ylt.chestplate.plate.object;

import java.util.HashMap;

import org.bukkit.Location;
import org.bukkit.Material;
import org.bukkit.block.Block;
import org.bukkit.block.BlockFace;
import org.bukkit.block.BlockState;
import org.bukkit.block.Sign;
import org.bukkit.entity.Entity;
import org.bukkit.entity.ExperienceOrb;
import org.bukkit.entity.Item;
import org.bukkit.inventory.Inventory;
import org.bukkit.inventory.InventoryHolder;
import org.bukkit.inventory.ItemStack;
import org.bukkit.material.MaterialData;
import org.bukkit.util.Vector;

import co.d3s.ylt.chestplate.ChestPlate;
import co.d3s.ylt.chestplate.plate.CP_Return;

public class CP_Sorter extends CP_Object {
    public CP_Sorter(ChestPlate chestPlate) {
        super(chestPlate);
    }

    public Block find(Block block) {
        Block current;
        
        current = block.getRelative(BlockFace.UP);
        if (check(current))
            return current;

        return null;
    }
    
    public boolean check(Block block) {
        Material mat = block.getType();
        if (mat == Material.SIGN_POST)
            return true;
        return false;
    }

    private Block findContainer(Block sign) {

        Material m = sign.getType();
        MaterialData md = m.getNewData(sign.getData());

        if (!(md instanceof org.bukkit.material.Sign))
            return null;

        org.bukkit.material.Sign s = (org.bukkit.material.Sign)md;

        Block current = sign;
        current = current.getRelative(BlockFace.DOWN);
        current = current.getRelative(s.getFacing());

        if (isContainer(current))
        {
            return current;
        }

        return null;
    }
    
    public CP_Return interact(Block plate, Entity entity) {
        if (!(/*entity instanceof ExperienceOrb || */ entity instanceof Item)) {
            return CP_Return.pass;
        }
        
        Block block = find(plate);
        if (block == null)
            return CP_Return.pass;
        
        BlockState blockstate = block.getState();
        if (!(blockstate instanceof Sign))
            return CP_Return.pass;

                
        Item item = (Item)entity;
        ItemStack stack = item.getItemStack();
        
        Byte data = block.getData();
        double srad = Math.PI*(((2F/16F*data.doubleValue()))+0.5);
        
        //double srad = Math.toRadians(((360F/16F)*(data.doubleValue()))+90);
        //System.out.println("angle "+srad+" "+Math.cos(srad)+", "+Math.sin(srad));
        
        Sign sign = (Sign)block.getState();
        
        
        Vector a = item.getVelocity();
        double angle = Math.atan2(a.getZ(), a.getX());
        boolean pulse = false;
        boolean redirect = false;
        
        String[] lines = sign.getLines();
        for(String line : lines) {
            for (String str : line.split(",") ) {
                str = str.trim();
                boolean negate = false;
                if (str.startsWith("-")) {
                    negate = true;
                    str = str.substring(1);
                }
                boolean match = cp.itemmatch.Type_Match(str.toUpperCase(), stack.getTypeId(), stack.getData().getData());
                if (match) {
                    redirect = !negate;
                }
            }
        }

        Block container = findContainer(block);
        if (container != null && redirect == true) {
            return pickup(plate, container, item);
        }
        if (redirect == true) {
            angle = srad;
            pulse = true;
        }


        /*{
            Location loc = item.getLocation();
            double nx = block.getX()-0.5+Math.cos(angle);
            double ny = block.getY()-0.5+Math.sin(angle);
            angle = Math.atan2(ny-loc.getY(), nx-loc.getX());
        }*/
        
        a.setX(Math.cos(angle)*0.25);
        a.setZ(Math.sin(angle)*0.25);
        
        a.setY(0.05);
        
        item.setVelocity(a);
        if (pulse == true) {
            depressPlate(plate);
            return CP_Return.done;
        }
        return CP_Return.cancel;
    }
}