/*
* MegaMek - Copyright (C) 2008 Ben Mazur (bmazur@sev.org)
*
* This program 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 2 of the License, or (at your option)
* any later version.
*
* This program 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.
*/
package megamek.common.actions;
import megamek.common.BattleArmor;
import megamek.common.Compute;
import megamek.common.Entity;
import megamek.common.IGame;
import megamek.common.IHex;
import megamek.common.Infantry;
import megamek.common.Player;
import megamek.common.TargetRoll;
import megamek.common.Targetable;
import megamek.common.ToHitData;
/**
* A BattleArmor uses its vibroclaws
*/
public class BAVibroClawAttackAction extends AbstractAttackAction {
/**
*
*/
private static final long serialVersionUID = 1432011536091665084L;
public BAVibroClawAttackAction(int entityId, int targetId) {
super(entityId, targetId);
}
public BAVibroClawAttackAction(int entityId, int targetType,
int targetId) {
super(entityId, targetType, targetId);
}
/**
* Damage a BA does with its vibroclaws.
*/
public static int getDamageFor(Entity entity) {
return Compute.missilesHit(((BattleArmor)entity).getShootingStrength()) * entity.getVibroClaws();
}
public ToHitData toHit(IGame game) {
return toHit(game, getEntityId(), game.getTarget(getTargetType(),
getTargetId()));
}
public static ToHitData toHit(IGame game, int attackerId, Targetable target) {
final Entity ae = game.getEntity(attackerId);
int targetId = Entity.NONE;
Entity te = null;
// arguments legal?
if ((ae == null) || (target == null)) {
throw new IllegalArgumentException("Attacker or target not valid");
}
if (target.getTargetType() == Targetable.TYPE_ENTITY) {
te = (Entity) target;
targetId = target.getTargetId();
}
if (!game.getOptions().booleanOption("friendly_fire")) {
// a friendly unit can never be the target of a direct attack.
if ((target.getTargetType() == Targetable.TYPE_ENTITY)
&& ((((Entity)target).getOwnerId() == ae.getOwnerId())
|| ((((Entity)target).getOwner().getTeam() != Player.TEAM_NONE)
&& (ae.getOwner().getTeam() != Player.TEAM_NONE)
&& (ae.getOwner().getTeam() == ((Entity)target).getOwner().getTeam())))) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "A friendly unit can never be the target of a direct attack.");
}
}
final IHex attHex = game.getBoard().getHex(ae.getPosition());
final IHex targHex = game.getBoard().getHex(target.getPosition());
if ((attHex == null) || (targHex == null)) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "off board");
}
boolean inSameBuilding = Compute.isInSameBuilding(game, ae, te);
ToHitData toHit;
// can't target yourself
if ((te != null) && ae.equals(te)) {
return new ToHitData(TargetRoll.IMPOSSIBLE,
"You can't target yourself");
}
// only BA can make this attack
if (!(ae instanceof BattleArmor)) {
return new ToHitData(TargetRoll.IMPOSSIBLE,
"Non-BA can't make vibroclaw-physicalattacks");
}
if ((te != null) && !((te instanceof Infantry))) {
return new ToHitData(TargetRoll.IMPOSSIBLE,
"can't target non-infantry");
}
// need to have vibroclaws to make this attack
if (ae.getVibroClaws() == 0) {
return new ToHitData(TargetRoll.IMPOSSIBLE,
"no vibro claws mounted");
}
// Can't target a transported entity.
if ((te != null) && (Entity.NONE != te.getTransportId())) {
return new ToHitData(TargetRoll.IMPOSSIBLE,
"Target is a passenger.");
}
// Can't target a entity conducting a swarm attack.
if ((te != null) && (Entity.NONE != te.getSwarmTargetId())) {
return new ToHitData(TargetRoll.IMPOSSIBLE,
"Target is swarming a Mek.");
}
// check range
final int range = ae.getPosition().distance(target.getPosition());
if (range > 0) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "Target not in range");
}
// check elevation
if ((te != null) && (te.getElevation() > 0)) {
return new ToHitData(TargetRoll.IMPOSSIBLE,
"Target elevation not in range");
}
// can't physically attack mechs making dfa attacks
if ((te != null) && te.isMakingDfa()) {
return new ToHitData(TargetRoll.IMPOSSIBLE,
"Target is making a DFA attack");
}
// Can't target woods or ignite a building with a physical.
if ((target.getTargetType() == Targetable.TYPE_BLDG_IGNITE)
|| (target.getTargetType() == Targetable.TYPE_HEX_CLEAR)
|| (target.getTargetType() == Targetable.TYPE_HEX_IGNITE)) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "Invalid attack");
}
// Set the base BTH
int base = ae.getCrew().getGunnery();
// Start the To-Hit
toHit = new ToHitData(base, "base");
// attacker movement
toHit.append(Compute.getAttackerMovementModifier(game, attackerId));
// target movement
toHit.append(Compute.getTargetMovementModifier(game, targetId));
// attacker terrain
toHit.append(Compute.getAttackerTerrainModifier(game, attackerId));
// target terrain
toHit.append(Compute.getTargetTerrainModifier(game, te, 0, inSameBuilding));
// attacker is spotting
if (ae.isSpotting()) {
toHit.addModifier(+1, "attacker is spotting");
}
// taser feedback
if (ae.getTaserFeedBackRounds() > 0) {
toHit.addModifier(1, "Taser feedback");
}
// target immobile
toHit.append(Compute.getImmobileMod(te));
toHit.append(nightModifiers(game, target, null, ae, false));
Compute.modifyPhysicalBTHForAdvantages(ae, te, toHit, game);
// factor in target side
toHit.setSideTable(Compute.targetSideTable(ae, te));
// done!
return toHit;
}
}