trunk/dist/game/data/scripts/handlers/effecthandlers/EnemyCharge.java

@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2004-2014 L2J DataPack
+ * 
+ * This file is part of L2J DataPack.
+ * 
+ * L2J DataPack is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * L2J DataPack is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package handlers.effecthandlers;
+
+import com.l2jserver.Config;
+import com.l2jserver.gameserver.GeoData;
+import com.l2jserver.gameserver.model.Location;
+import com.l2jserver.gameserver.model.StatsSet;
+import com.l2jserver.gameserver.model.conditions.Condition;
+import com.l2jserver.gameserver.model.effects.AbstractEffect;
+import com.l2jserver.gameserver.model.skills.BuffInfo;
+import com.l2jserver.gameserver.network.serverpackets.FlyToLocation;
+import com.l2jserver.gameserver.network.serverpackets.FlyToLocation.FlyType;
+import com.l2jserver.gameserver.network.serverpackets.ValidateLocation;
+
+/**
+ * Enemy Charge effect implementation.
+ */
+public final class EnemyCharge extends AbstractEffect
+{
+	public EnemyCharge(Condition attachCond, Condition applyCond, StatsSet set, StatsSet params)
+	{
+		super(attachCond, applyCond, set, params);
+	}
+	
+	@Override
+	public boolean isInstant()
+	{
+		return true;
+	}
+	
+	@Override
+	public void onStart(BuffInfo info)
+	{
+		if (info.getEffected().isMovementDisabled())
+		{
+			return;
+		}
+		
+		// Get current position of the L2Character
+		final int curX = info.getEffector().getX();
+		final int curY = info.getEffector().getY();
+		final int curZ = info.getEffector().getZ();
+		
+		// Calculate distance (dx,dy) between current position and destination
+		double dx = info.getEffected().getX() - curX;
+		double dy = info.getEffected().getY() - curY;
+		double dz = info.getEffected().getZ() - curZ;
+		double distance = Math.sqrt((dx * dx) + (dy * dy));
+		if (distance > 2000)
+		{
+			_log.info("EffectEnemyCharge was going to use invalid coordinates for characters, getEffector: " + curX + "," + curY + " and getEffected: " + info.getEffected().getX() + "," + info.getEffected().getY());
+			return;
+		}
+		
+		int offset = Math.max((int) distance - info.getSkill().getFlyRadius(), 30);
+		
+		// approximation for moving closer when z coordinates are different
+		// TODO: handle Z axis movement better
+		offset -= Math.abs(dz);
+		if (offset < 5)
+		{
+			offset = 5;
+		}
+		
+		// If no distance
+		if ((distance < 1) || ((distance - offset) <= 0))
+		{
+			return;
+		}
+		
+		// Calculate movement angles needed
+		double sin = dy / distance;
+		double cos = dx / distance;
+		
+		// Calculate the new destination with offset included
+		int x = curX + (int) ((distance - offset) * cos);
+		int y = curY + (int) ((distance - offset) * sin);
+		int z = info.getEffected().getZ();
+		
+		if (Config.GEODATA > 0)
+		{
+			Location destiny = GeoData.getInstance().moveCheck(info.getEffector().getX(), info.getEffector().getY(), info.getEffector().getZ(), x, y, z, info.getEffector().getInstanceId());
+			x = destiny.getX();
+			y = destiny.getY();
+		}
+		info.getEffector().broadcastPacket(new FlyToLocation(info.getEffector(), x, y, z, FlyType.CHARGE));
+		
+		// maybe is need force set X,Y,Z
+		info.getEffector().setXYZ(x, y, z);
+		info.getEffector().broadcastPacket(new ValidateLocation(info.getEffector()));
+	}
+}