Plex-FAWE/favs/src/main/java/com/thevoxelbox/voxelsniper/brush/RulerBrush.java

package com.thevoxelbox.voxelsniper.brush;

import com.thevoxelbox.voxelsniper.Message;
import com.thevoxelbox.voxelsniper.SnipeData;
import com.thevoxelbox.voxelsniper.Undo;
import org.bukkit.ChatColor;
import org.bukkit.util.Vector;

/**
 * @author Gavjenks
 */
public class RulerBrush extends Brush {
    private boolean first = true;
    private Vector coords = new Vector(0, 0, 0);

    private int xOff = 0;
    private int yOff = 0;
    private int zOff = 0;

    public RulerBrush() {
        this.setName("Ruler");
    }

    @Override
    protected final void arrow(final SnipeData v) {
        final int voxelMaterialId = v.getVoxelId();
        this.coords = this.getTargetBlock().getLocation().toVector();

        if (this.xOff == 0 && this.yOff == 0 && this.zOff == 0) {
            v.sendMessage(ChatColor.DARK_PURPLE + "First point selected.");
            this.first = !this.first;
        } else {
            final Undo undo = new Undo();

            undo.put(this.clampY(this.getTargetBlock().getX() + this.xOff, this.getTargetBlock().getY() + this.yOff, this.getTargetBlock().getZ() + this.zOff));
            this.setBlockIdAt(this.getTargetBlock().getZ() + this.zOff, this.getTargetBlock().getX() + this.xOff, this.getTargetBlock().getY() + this.yOff, voxelMaterialId);
            v.owner().storeUndo(undo);
        }
    }

    @Override
    protected final void powder(final SnipeData v) {
        if (this.coords == null || this.coords.lengthSquared() == 0) {
            v.sendMessage(ChatColor.RED + "Warning: You did not select a first coordinate with the arrow. Comparing to point 0,0,0 instead.");
            return;
        }

        v.sendMessage(ChatColor.BLUE + "Format = (second coord - first coord)");
        v.sendMessage(ChatColor.AQUA + "X change: " + (this.getTargetBlock().getX() - this.coords.getX()));
        v.sendMessage(ChatColor.AQUA + "Y change: " + (this.getTargetBlock().getY() - this.coords.getY()));
        v.sendMessage(ChatColor.AQUA + "Z change: " + (this.getTargetBlock().getZ() - this.coords.getZ()));
        final double distance = (double) (Math.round(this.getTargetBlock().getLocation().toVector().subtract(this.coords).length() * 100) / 100);
        final double blockDistance = (double) (Math.round((Math.abs(Math.max(Math.max(Math.abs(this.getTargetBlock().getX() - coords.getX()), Math.abs(this.getTargetBlock().getY() - this.coords.getY())), Math.abs(this.getTargetBlock().getZ() - this.coords.getZ()))) + 1) * 100) / 100);

        v.sendMessage(ChatColor.AQUA + "Euclidean distance = " + distance);
        v.sendMessage(ChatColor.AQUA + "Block distance = " + blockDistance);
    }

    @Override
    public final void info(final Message vm) {
        vm.brushName(this.getName());
        vm.voxel();
    }

    @Override
    public final void parameters(final String[] par, final SnipeData v) {
        for (int i = 1; i < par.length; i++) {
            final String parameter = par[i];

            if (parameter.equalsIgnoreCase("info")) {
                v.sendMessage(ChatColor.GOLD + "Ruler Brush instructions: Right click first point with the arrow. Right click with powder for distances from that block (can repeat without getting a new first block.) For placing blocks, use arrow and input the desired coordinates with parameters.");
                v.sendMessage(ChatColor.LIGHT_PURPLE + "/b r x[x value] y[y value] z[z value] -- Will place blocks one at a time of the type you have set with /v at the location you click + this many units away.  If you don't include a value, it will be zero.  Don't include ANY values, and the brush will just measure distance.");
                v.sendMessage(ChatColor.BLUE + "/b r ruler -- will reset the tool to just measure distances, not layout blocks.");

                return;
            } else if (parameter.startsWith("x")) {
                this.xOff = Integer.parseInt(parameter.replace("x", ""));
                v.sendMessage(ChatColor.AQUA + "X offset set to " + this.xOff);
            } else if (parameter.startsWith("y")) {
                this.yOff = Integer.parseInt(parameter.replace("y", ""));
                v.sendMessage(ChatColor.AQUA + "Y offset set to " + this.yOff);
            } else if (parameter.startsWith("z")) {
                this.zOff = Integer.parseInt(parameter.replace("z", ""));
                v.sendMessage(ChatColor.AQUA + "Z offset set to " + this.zOff);
            } else if (parameter.startsWith("ruler")) {
                this.zOff = 0;
                this.yOff = 0;
                this.xOff = 0;
                v.sendMessage(ChatColor.BLUE + "Ruler mode.");
            } else {
                v.sendMessage(ChatColor.RED + "Invalid brush parameters! Use the info parameter to display parameter info.");
            }
        }
    }

    @Override
    public String getPermissionNode() {
        return "voxelsniper.brush.ruler";
    }
}