/*
* MegaMek - Copyright (C) 2000,2001,2002,2003,2004 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.Compute;
import megamek.common.Entity;
import megamek.common.GunEmplacement;
import megamek.common.IGame;
import megamek.common.IHex;
import megamek.common.ILocationExposureStatus;
import megamek.common.Infantry;
import megamek.common.Mech;
import megamek.common.MiscType;
import megamek.common.Mounted;
import megamek.common.Tank;
import megamek.common.TargetRoll;
import megamek.common.Targetable;
import megamek.common.ToHitData;
import megamek.common.VTOL;
/**
* The attacker kicks the target.
*/
public class KickAttackAction extends PhysicalAttackAction {
/**
*
*/
private static final long serialVersionUID = 1697321306815235635L;
public static final int BOTH = 0;
public static final int LEFT = 1;
public static final int RIGHT = 2;
public static final int LEFTMULE = 3;
public static final int RIGHTMULE = 4;
private int leg;
public KickAttackAction(int entityId, int targetId, int leg) {
super(entityId, targetId);
this.leg = leg;
}
public KickAttackAction(int entityId, int targetType, int targetId, int leg) {
super(entityId, targetType, targetId);
this.leg = leg;
}
public int getLeg() {
return leg;
}
public void setLeg(int leg) {
this.leg = leg;
}
/**
* Damage that the specified mech does with a kick
*/
public static int getDamageFor(Entity entity, int leg,
boolean targetInfantry) {
int[] kickLegs = new int[2];
if (entity.entityIsQuad() && leg != LEFTMULE && leg != RIGHTMULE) {
kickLegs[0] = Mech.LOC_RARM;
kickLegs[1] = Mech.LOC_LARM;
} else {
kickLegs[0] = Mech.LOC_RLEG;
kickLegs[1] = Mech.LOC_LLEG;
}
final int legLoc = (leg == RIGHT || leg == RIGHTMULE) ? kickLegs[0]
: kickLegs[1];
int damage = (int) Math.floor(entity.getWeight() / 5.0);
float multiplier = 1.0f;
if (!entity.hasWorkingSystem(Mech.ACTUATOR_UPPER_LEG, legLoc)) {
multiplier /= 2.0f;
}
if (!entity.hasWorkingSystem(Mech.ACTUATOR_LOWER_LEG, legLoc)) {
multiplier /= 2.0f;
}
if (!entity.hasWorkingSystem(Mech.ACTUATOR_HIP, legLoc)) {
damage = 0;
}
if (entity.heat >= 9 && ((Mech) entity).hasTSM()) {
multiplier *= 2.0f;
}
if ( entity.hasWorkingMisc(MiscType.F_TALON, -1, legLoc) && entity.hasWorkingSystem(Mech.ACTUATOR_FOOT, legLoc) ){
multiplier *= 1.5;
}
int toReturn = (int) Math.floor(damage * multiplier)
+ entity.getCrew().modifyPhysicalDamagaForMeleeSpecialist();
// underwater damage is half, round up (see bug 1110692)
if (entity.getLocationStatus(legLoc) == ILocationExposureStatus.WET) {
toReturn = (int) Math.ceil(toReturn * 0.5f);
}
if (targetInfantry) {
toReturn = Math.max(1, toReturn / 10);
}
return toReturn;
}
public ToHitData toHit(IGame game) {
return KickAttackAction.toHit(game, getEntityId(), game.getTarget(getTargetType(),
getTargetId()), getLeg());
}
/**
* To-hit number for the specified leg to kick
*/
public static ToHitData toHit(IGame game, int attackerId,
Targetable target, int leg) {
final Entity ae = game.getEntity(attackerId);
if (ae == null) {
return new ToHitData(TargetRoll.IMPOSSIBLE,
"You can't attack from a null entity!");
}
String impossible = PhysicalAttackAction.toHitIsImpossible(game, ae, target);
if (impossible != null) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "impossible");
}
IHex attHex = game.getBoard().getHex(ae.getPosition());
IHex targHex = game.getBoard().getHex(target.getPosition());
final int attackerElevation = ae.getElevation() + attHex.getElevation();
final int targetElevation = target.getElevation()
+ targHex.getElevation();
final int targetHeight = targetElevation + target.getHeight();
int mule = 0;
int[] kickLegs = new int[2];
if (ae.entityIsQuad()) {
if (leg == KickAttackAction.LEFTMULE
|| leg == KickAttackAction.RIGHTMULE) {
kickLegs[0] = Mech.LOC_RLEG;
kickLegs[1] = Mech.LOC_LLEG;
mule = 1; // To-hit modifier
} else {
kickLegs[0] = Mech.LOC_RARM;
kickLegs[1] = Mech.LOC_LARM;
}
} else {
kickLegs[0] = Mech.LOC_RLEG;
kickLegs[1] = Mech.LOC_LLEG;
}
final int legLoc = ((leg == KickAttackAction.RIGHTMULE) || (leg == KickAttackAction.RIGHT)) ? kickLegs[0]
: kickLegs[1];
ToHitData toHit;
// arguments legal?
// By allowing mulekicks, this gets a little more complicated :(
if (leg != KickAttackAction.RIGHT && leg != KickAttackAction.LEFT
&& leg != KickAttackAction.RIGHTMULE
&& leg != KickAttackAction.LEFTMULE) {
throw new IllegalArgumentException(
"Leg must be one of LEFT, RIGHT, LEFTMULE, or RIGHTMULE");
}
// non-mechs can't kick
if (!(ae instanceof Mech)) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "Non-mechs can't kick");
}
// check if all legs are present & working
if (ae.isLocationBad(Mech.LOC_LLEG) || ae.isLocationBad(Mech.LOC_LLEG)
|| (ae.entityIsQuad()
&& (ae.isLocationBad(Mech.LOC_LARM)
|| ae.isLocationBad(Mech.LOC_RARM)))) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "Leg missing");
}
// check if all hips are operational
if (!ae.hasWorkingSystem(Mech.ACTUATOR_HIP, Mech.LOC_LLEG)
|| !ae.hasWorkingSystem(Mech.ACTUATOR_HIP, Mech.LOC_RLEG)
|| (ae.entityIsQuad()
&& (!ae.hasWorkingSystem(Mech.ACTUATOR_HIP, Mech.LOC_LARM)
|| !ae.hasWorkingSystem(Mech.ACTUATOR_HIP, Mech.LOC_RARM)))) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "Hip destroyed");
}
// check if attacker has fired leg-mounted weapons
for (Mounted mounted : ae.getWeaponList()) {
if (mounted.isUsedThisRound() && mounted.getLocation() == legLoc) {
return new ToHitData(TargetRoll.IMPOSSIBLE,
"Weapons fired from leg this turn");
}
}
// check range
final int range = ae.getPosition().distance(target.getPosition());
// check elevation
if (target instanceof VTOL && ((VTOL)target).isFlying()) {
if (targetElevation - attackerElevation != 0) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "Target elevation not in range");
}
} else if (attackerElevation < targetElevation
|| attackerElevation > targetHeight) {
return new ToHitData(TargetRoll.IMPOSSIBLE,
"Target elevation not in range");
}
// check facing
// Don't check arc for stomping infantry or tanks.
if (0 != range
&& mule != 1
&& !Compute.isInArc(ae.getPosition(), ae.getFacing(), target
.getPosition(), Compute.ARC_FORWARD)) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "Target not in arc");
}
// check facing, part 2: Mule kick
if (0 != range
&& mule == 1
&& !Compute.isInArc(ae.getPosition(), ae.getFacing(), target
.getPosition(), Compute.ARC_REAR)) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "Target not in arc");
}
// can't kick while prone
if (ae.isProne()) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "Attacker is prone");
}
if ( ae.isHullDown() ){
return new ToHitData(TargetRoll.IMPOSSIBLE, "Attacker is hull down");
}
// Attacks against adjacent buildings automatically hit.
if (target.getTargetType() == Targetable.TYPE_BUILDING
|| target.getTargetType() == Targetable.TYPE_FUEL_TANK
|| target instanceof GunEmplacement) {
return new ToHitData(TargetRoll.AUTOMATIC_SUCCESS,
"Targeting adjacent building.");
}
// Set the base BTH
int base = ae.getCrew().getPiloting() - 2;
// Start the To-Hit
toHit = new ToHitData(base, "base");
PhysicalAttackAction.setCommonModifiers(toHit, game, ae, target);
// +3 modifier for kicking infantry in same hex
// see bug 1749177
if (target instanceof Infantry && range == 0) {
toHit.addModifier(3, "Stomping Infantry");
}
// Mulekick?
if (mule != 0) {
toHit.addModifier(mule, "Quad Mek making a mule kick");
}
// damaged or missing actuators
if (!ae.hasWorkingSystem(Mech.ACTUATOR_UPPER_LEG, legLoc)) {
toHit.addModifier(2, "Upper leg actuator destroyed");
}
if (!ae.hasWorkingSystem(Mech.ACTUATOR_LOWER_LEG, legLoc)) {
toHit.addModifier(2, "Lower leg actuator destroyed");
}
if (!ae.hasWorkingSystem(Mech.ACTUATOR_FOOT, legLoc)) {
toHit.addModifier(1, "Foot actuator destroyed");
}
if ( ae.hasFunctionalLegAES() ) {
toHit.addModifier(-1, "AES bonus");
}
// elevation
if (attackerElevation < targetHeight) {
toHit.setHitTable(ToHitData.HIT_KICK);
} else if (target.getHeight() > 0) {
toHit.setHitTable(ToHitData.HIT_PUNCH);
} else {
toHit.setHitTable(ToHitData.HIT_NORMAL);
}
// factor in target side
toHit.setSideTable(Compute.targetSideTable(ae, target));
// BMRr pg. 42, "The side on which a vehicle takes damage is determined
// randomly if the BattleMech is attacking from the same hex."
if (0 == range && target instanceof Tank) {
toHit.setSideTable(ToHitData.SIDE_RANDOM);
}
// done!
return toHit;
}
}