/** Checks if a death from above attack can hit the target, including movement */
public static ToHitData toHit(IGame game, int attackerId, Targetable target, MovePath md) {
final Entity ae = game.getEntity(attackerId);
// Do to pretreatment of physical attacks, the target may be null.
if (target == null) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "Target is null");
}
Entity te = null;
if (target.getTargetType() == Targetable.TYPE_ENTITY) {
te = (Entity) target;
}
Coords chargeSrc = ae.getPosition();
MoveStep chargeStep = null;
// Infantry CAN'T dfa!!!
if (ae instanceof Infantry) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "Infantry can't D.F.A.");
}
if (ae.getJumpType() == Mech.JUMP_BOOSTER) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "Can't D.F.A. using mechanical jump boosters.");
}
// let's just check this
if (!md.contains(MoveStepType.DFA)) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "D.F.A. action not found in movement path");
}
// have to jump
if (!md.contains(MoveStepType.START_JUMP)) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "D.F.A. must involve jumping");
}
// can't target airborne units
if ((te != null) && te.isAirborne()) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "Cannot D.F.A. an airborne target.");
}
// can't target dropships
if ((te != null) && (te instanceof Dropship)) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "Cannot D.F.A. a dropship.");
}
// Can't target a transported entity.
if ((te != null) && (Entity.NONE != te.getTransportId())) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "Target is a passenger.");
}
// no evading
if (md.contains(MoveStepType.EVADE)) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "No evading while charging");
}
// 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.");
}
// determine last valid step
md.compile(game, ae);
for (final Enumeration<MoveStep> i = md.getSteps(); i.hasMoreElements(); ) {
final MoveStep step = i.nextElement();
if (!step.isLegal()) {
break;
}
if (step.getType() == MoveStepType.DFA) {
chargeStep = step;
} else {
chargeSrc = step.getPosition();
}
}
// need to reach target
if ((chargeStep == null) || !target.getPosition().equals(chargeStep.getPosition())) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "Could not reach target with movement");
}
// target must have moved already, unless it's immobile
if ((te != null) && (!te.isDone() && !te.isImmobile())) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "Target must be done with movement");
}
return DfaAttackAction.toHit(game, attackerId, target, chargeSrc);
}
/** To-hit number for the mech to push another mech */
public static ToHitData toHit(IGame game, int attackerId, Targetable target) {
final Entity ae = game.getEntity(attackerId);
int targetId = Entity.NONE;
Entity te = null;
if (target.getTargetType() == Targetable.TYPE_ENTITY) {
te = (Entity) target;
targetId = target.getTargetId();
}
if (ae == null)
return new ToHitData(ToHitData.IMPOSSIBLE, "You can't attack from a null entity!");
if (te == null) return new ToHitData(ToHitData.IMPOSSIBLE, "You can't target a null entity!");
IHex attHex = game.getBoard().getHex(ae.getPosition());
IHex targHex = game.getBoard().getHex(te.getPosition());
final int attackerElevation = ae.getElevation() + attHex.getElevation();
final int targetElevation = target.getElevation() + targHex.getElevation();
final boolean targetInBuilding = Compute.isInBuilding(game, te);
Building bldg = null;
if (targetInBuilding) {
bldg = game.getBoard().getBuildingAt(te.getPosition());
}
ToHitData toHit = null;
// arguments legal?
if (ae == null || target == null) {
throw new IllegalArgumentException("Attacker or target not valid");
}
// can't target yourself
if (ae.equals(te)) {
return new ToHitData(ToHitData.IMPOSSIBLE, "You can't target yourself");
}
// non-mechs can't push
if (!(ae instanceof Mech)) {
return new ToHitData(ToHitData.IMPOSSIBLE, "Non-mechs can't push");
}
// Quads can't push
if (ae.entityIsQuad()) {
return new ToHitData(ToHitData.IMPOSSIBLE, "Attacker is a quad");
}
// can't make physical attacks while spotting
if (ae.isSpotting()) {
return new ToHitData(ToHitData.IMPOSSIBLE, "Attacker is spotting this turn");
}
// Can only push mechs
if (te != null && !(te instanceof Mech)) {
return new ToHitData(ToHitData.IMPOSSIBLE, "Target is not a mech");
}
// Can't push with flipped arms
if (ae.getArmsFlipped()) {
return new ToHitData(ToHitData.IMPOSSIBLE, "Arms are flipped to the rear. Can not push.");
}
// Can't target a transported entity.
if (te != null && Entity.NONE != te.getTransportId()) {
return new ToHitData(ToHitData.IMPOSSIBLE, "Target is a passenger.");
}
// Can't target a entity conducting a swarm attack.
if (te != null && Entity.NONE != te.getSwarmTargetId()) {
return new ToHitData(ToHitData.IMPOSSIBLE, "Target is swarming a Mek.");
}
// check if both arms are present
if (ae.isLocationBad(Mech.LOC_RARM) || ae.isLocationBad(Mech.LOC_LARM)) {
return new ToHitData(ToHitData.IMPOSSIBLE, "Arm missing");
}
// check if attacker has fired arm-mounted weapons
if (ae.weaponFiredFrom(Mech.LOC_RARM) || ae.weaponFiredFrom(Mech.LOC_LARM)) {
return new ToHitData(ToHitData.IMPOSSIBLE, "Weapons fired from arm this turn");
}
// check range
if (ae.getPosition().distance(target.getPosition()) > 1) {
return new ToHitData(ToHitData.IMPOSSIBLE, "Target not in range");
}
// target must be at same elevation
if (attackerElevation != targetElevation) {
return new ToHitData(ToHitData.IMPOSSIBLE, "Target not at same elevation");
}
// can't push mech making non-pushing displacement attack
if (te != null && te.hasDisplacementAttack() && !te.isPushing()) {
return new ToHitData(ToHitData.IMPOSSIBLE, "Target is making a charge/DFA attack");
}
// can't push mech pushing another, different mech
if (te != null && te.isPushing() && te.getDisplacementAttack().getTargetId() != ae.getId()) {
return new ToHitData(ToHitData.IMPOSSIBLE, "Target is pushing another mech");
}
// can't do anything but counter-push if the target of another attack
if (ae.isTargetOfDisplacementAttack()
&& ae.findTargetedDisplacement().getEntityId() != target.getTargetId()) {
return new ToHitData(
ToHitData.IMPOSSIBLE, "Attacker is the target of another push/charge/DFA");
}
// can't attack the target of another displacement attack
if (te != null
&& te.isTargetOfDisplacementAttack()
&& te.findTargetedDisplacement().getEntityId() != ae.getId()) {
return new ToHitData(ToHitData.IMPOSSIBLE, "Target is the target of another push/charge/DFA");
}
// check facing
if (!target.getPosition().equals(ae.getPosition().translated(ae.getFacing()))) {
return new ToHitData(ToHitData.IMPOSSIBLE, "Target not directly ahead of feet");
}
// can't push while prone
if (ae.isProne()) {
return new ToHitData(ToHitData.IMPOSSIBLE, "Attacker is prone");
}
// can't push prone mechs
if (te != null && te.isProne()) {
return new ToHitData(ToHitData.IMPOSSIBLE, "Target is prone");
}
// Can't target units in buildings (from the outside).
if (targetInBuilding) {
if (!Compute.isInBuilding(game, ae)) {
return new ToHitData(ToHitData.IMPOSSIBLE, "Target is inside building");
} else if (!game.getBoard().getBuildingAt(ae.getPosition()).equals(bldg)) {
return new ToHitData(ToHitData.IMPOSSIBLE, "Target is inside differnt building");
}
}
// Attacks against adjacent buildings automatically hit.
if ((target.getTargetType() == Targetable.TYPE_BUILDING)
|| (target.getTargetType() == Targetable.TYPE_FUEL_TANK)) {
return new ToHitData(
ToHitData.IMPOSSIBLE,
"You can not push a building (well, you can, but it won't do anything).");
}
// 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(ToHitData.IMPOSSIBLE, "Invalid attack");
}
// Set the base BTH
int base = 4;
if (game.getOptions().booleanOption("maxtech_physical_BTH")) {
base = ae.getCrew().getPiloting() - 1;
}
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));
// damaged or missing actuators
if (!ae.hasWorkingSystem(Mech.ACTUATOR_SHOULDER, Mech.LOC_RARM)) {
toHit.addModifier(2, "Right Shoulder destroyed");
}
if (!ae.hasWorkingSystem(Mech.ACTUATOR_SHOULDER, Mech.LOC_LARM)) {
toHit.addModifier(2, "Left Shoulder destroyed");
}
// water partial cover?
if (te.height() > 0
&& te.getElevation() == -1
&& targHex.terrainLevel(Terrains.WATER) == te.height()) {
toHit.addModifier(3, "target has partial cover");
}
// target immobile
toHit.append(Compute.getImmobileMod(te));
Compute.modifyPhysicalBTHForAdvantages(ae, te, toHit, game);
toHit.append(nightModifiers(game, target, null, ae));
// side and elevation shouldn't matter
// If it has a torso-mounted cockpit and two head sensor hits or three sensor hits...
// It gets a =4 penalty for being blind!
if (((Mech) ae).getCockpitType() == Mech.COCKPIT_TORSO_MOUNTED) {
int sensorHits =
ae.getBadCriticals(CriticalSlot.TYPE_SYSTEM, Mech.SYSTEM_SENSORS, Mech.LOC_HEAD);
int sensorHits2 =
ae.getBadCriticals(CriticalSlot.TYPE_SYSTEM, Mech.SYSTEM_SENSORS, Mech.LOC_CT);
if ((sensorHits + sensorHits2) == 3) {
return new ToHitData(
ToHitData.IMPOSSIBLE, "Sensors Completely Destroyed for Torso-Mounted Cockpit");
} else if (sensorHits == 2) {
toHit.addModifier(4, "Head Sensors Destroyed for Torso-Mounted Cockpit");
}
}
// done!
return toHit;
}
/** To-hit number for a death from above attack, assuming that movement has been handled */
public static ToHitData toHit(IGame game, int attackerId, Targetable target, Coords src) {
final Entity ae = game.getEntity(attackerId);
// arguments legal?
if (ae == null) {
throw new IllegalArgumentException("Attacker is null");
}
// Do to pretreatment of physical attacks, the target may be null.
if (target == null) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "Target is null");
}
int targetId = Entity.NONE;
Entity te = null;
if (target.getTargetType() == Targetable.TYPE_ENTITY) {
te = (Entity) target;
targetId = target.getTargetId();
} else {
return new ToHitData(TargetRoll.IMPOSSIBLE, "Invalid Target");
}
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() != IPlayer.TEAM_NONE)
&& (ae.getOwner().getTeam() != IPlayer.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 boolean targetInBuilding = Compute.isInBuilding(game, te);
ToHitData toHit = null;
final int attackerElevation =
ae.getElevation() + game.getBoard().getHex(ae.getPosition()).getLevel();
final int targetElevation =
target.getElevation() + game.getBoard().getHex(target.getPosition()).getLevel();
final int attackerHeight = attackerElevation + ae.getHeight();
// check elevation of target flying VTOL
if (target.isAirborneVTOLorWIGE()) {
if ((targetElevation - attackerHeight) > ae.getJumpMP()) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "Elevation difference to high");
}
}
// can't target yourself
if (ae.equals(te)) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "You can't target yourself");
}
// Infantry CAN'T dfa!!!
if (ae instanceof Infantry) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "Infantry can't dfa");
}
// Can't target a transported entity.
if ((Entity.NONE != te.getTransportId())) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "Target is a passenger.");
}
// Can't target a entity conducting a swarm attack.
if ((Entity.NONE != te.getSwarmTargetId())) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "Target is swarming a Mek.");
}
// check range
if (src.distance(target.getPosition()) > 1) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "Target not in range");
}
// can't dfa while prone, even if you somehow did manage to jump
if (ae.isProne()) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "Attacker is prone");
}
// can't attack mech making a different displacement attack
if (te.hasDisplacementAttack()) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "Target is already making a charge/DFA attack");
}
// can't attack the target of another displacement attack
if (te.isTargetOfDisplacementAttack()
&& (te.findTargetedDisplacement().getEntityId() != ae.getId())) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "Target is the target of another charge/DFA");
}
// Can't target units in buildings (from the outside).
if (targetInBuilding) {
return new ToHitData(TargetRoll.IMPOSSIBLE, "Target is inside building");
}
// 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.");
}
// 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().getPiloting();
toHit = new ToHitData(base, "base");
// BMR(r), page 33. +3 modifier for DFA on infantry.
if (te instanceof Infantry) {
toHit.addModifier(3, "Infantry target");
}
// Battle Armor targets are hard for Meks and Tanks to hit.
if (te instanceof BattleArmor) {
toHit.addModifier(1, "battle armor target");
}
if ((ae instanceof Mech) && ((Mech) ae).isSuperHeavy()) {
toHit.addModifier(1, "attacker is superheavy mech");
}
// attacker movement
toHit.append(
Compute.getAttackerMovementModifier(game, attackerId, EntityMovementType.MOVE_JUMP));
// target movement
toHit.append(Compute.getTargetMovementModifier(game, targetId));
// piloting skill differential
if ((ae.getCrew().getPiloting() != te.getCrew().getPiloting())) {
toHit.addModifier(
ae.getCrew().getPiloting() - te.getCrew().getPiloting(), "piloting skill differential");
}
// attacker is spotting
if (ae.isSpotting()) {
toHit.addModifier(+1, "attacker is spotting");
}
// target prone
if (te.isProne()) {
toHit.addModifier(-2, "target prone and adjacent");
}
// If it has a torso-mounted cockpit and two head sensor hits or three
// sensor hits...
// It gets a =4 penalty for being blind!
if ((ae instanceof Mech) && (((Mech) ae).getCockpitType() == Mech.COCKPIT_TORSO_MOUNTED)) {
int sensorHits =
ae.getBadCriticals(CriticalSlot.TYPE_SYSTEM, Mech.SYSTEM_SENSORS, Mech.LOC_HEAD);
int sensorHits2 =
ae.getBadCriticals(CriticalSlot.TYPE_SYSTEM, Mech.SYSTEM_SENSORS, Mech.LOC_CT);
if ((sensorHits + sensorHits2) == 3) {
return new ToHitData(
TargetRoll.IMPOSSIBLE, "Sensors Completely Destroyed for Torso-Mounted Cockpit");
} else if (sensorHits == 2) {
toHit.addModifier(4, "Head Sensors Destroyed for Torso-Mounted Cockpit");
}
}
// target immobile
toHit.append(Compute.getImmobileMod(te));
toHit.append(AbstractAttackAction.nightModifiers(game, target, null, ae, false));
Compute.modifyPhysicalBTHForAdvantages(ae, te, toHit, game);
// evading bonuses (
if (te.isEvading()) {
toHit.addModifier(te.getEvasionBonus(), "target is evading");
}
if (te instanceof Tank) {
toHit.setSideTable(ToHitData.SIDE_FRONT);
toHit.setHitTable(ToHitData.HIT_NORMAL);
} else if (te.isProne()) {
toHit.setSideTable(ToHitData.SIDE_REAR);
toHit.setHitTable(ToHitData.HIT_NORMAL);
} else {
toHit.setSideTable(te.sideTable(src));
toHit.setHitTable(ToHitData.HIT_PUNCH);
}
// Attacking Weight Class Modifier.
if (game.getOptions().booleanOption(OptionsConstants.AGM_TAC_OPS_PHYSICAL_ATTACK_PSR)) {
if (ae.getWeightClass() == EntityWeightClass.WEIGHT_LIGHT) {
toHit.addModifier(-2, "Weight Class Attack Modifier");
} else if (ae.getWeightClass() == EntityWeightClass.WEIGHT_MEDIUM) {
toHit.addModifier(-1, "Weight Class Attack Modifier");
}
}
if ((ae instanceof Mech) && ((Mech) ae).hasIndustrialTSM()) {
toHit.addModifier(2, "industrial TSM");
}
// done!
return toHit;
}