gistfile1.java

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package com.crimsonrpg.magicrpg.spell;

import com.crimsonrpg.magicrpg.MagicRPG;
import com.crimsonrpg.magicrpg.SpellInfo;
import com.crimsonrpg.magicrpg.VisualFX;
import org.bukkit.Bukkit;
import org.bukkit.Location;
import org.bukkit.entity.Player;

/**
 *
 * @author simplyianm
 */
@SpellInfo(id = "tornado",
name = "Tornado")
public class SpellTornado implements Spell {
	private MagicRPG rpg;

	public SpellTornado(MagicRPG rpg) {
		this.rpg = rpg;
	}

	public void cast(Player caster) {
		Tornado tornado = new Tornado(caster.getLocation(), 10, 20);
		tornado.runFor(1000);
	}

	private static double lengthSq(double x, double z) {
		return (x * x) + (z * z);
	}

	public class Tornado {
		private Location center;

		private int bottomRadius;

		private int topRadius;

		private int task = -1;

		private int iterations = 0;

		private int maxIterations = 0;

		public Tornado(Location center, int bottomRadius, int topRadius) {
			this.center = center;
			this.bottomRadius = bottomRadius;
			this.topRadius = topRadius;
		}

		public void runFor(int iterations) {
			maxIterations = iterations;
			start();
		}

		public void start() {
			task = Bukkit.getScheduler().scheduleSyncRepeatingTask(rpg, new TornadoOne(), 1L, 1L);
		}

		public void stop() {
			if (task < 0) {
				throw new IllegalStateException("Not tornadoing!");
			}
			Bukkit.getScheduler().cancelTask(task);
			task = -1;
		}

		private class TornadoOne implements Runnable {
			public void run() {
				System.out.println("Iteration " + iterations);
				if (iterations >= maxIterations) {
					System.out.println("Tornado over");
					stop();
					return;
				}
				int ymin = center.getBlockY();
				int ymax = 127;

				int bottomRadius = 10;
				int topRadius = 20;


				int height = (ymax - ymin);
				double slope = height / (topRadius - bottomRadius);

				for (int i = 0; i < height; i++) {
					int dist = (int) (i / slope);
					if (iterations % 2 == 0) {
						VisualFX.deploySmoke(center.add(0, i, dist), 10);
						VisualFX.deploySmoke(center.add(0, i, -dist), 10);
						VisualFX.deploySmoke(center.add(dist, i, 0), 10);
						VisualFX.deploySmoke(center.add(-dist, i, 0), 10);
					} else {

						VisualFX.deploySmoke(center.add(dist, i, dist), 10);
						VisualFX.deploySmoke(center.add(-dist, i, -dist), 10);
						VisualFX.deploySmoke(center.add(dist, i, -dist), 10);
						VisualFX.deploySmoke(center.add(-dist, i, dist), 10);
					}
				}

				iterations++;
			}

		}

	}

}