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Fix 5590: princess firing on 13s due to intervening trees, etc. #6477

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Merged
merged 3 commits into from
Feb 1, 2025
Merged

Fix 5590: princess firing on 13s due to intervening trees, etc. #6477

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8b3295d
Finalize addition of actual intervening LOS calcs to woods and smoke …
Sleet01 Jan 31, 2025
d25334b
Refactor copy constructor, update ammo-change to-hit check, add woods…
Sleet01 Jan 31, 2025
36ca78c
Fixes for code quality issues found after PR submit
Sleet01 Feb 1, 2025
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39 changes: 29 additions & 10 deletions megamek/src/megamek/client/bot/princess/FireControl.java
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Original file line number Diff line number Diff line change
Expand Up @@ -354,16 +354,22 @@ ToHitData guessToHitModifierHelperForAnyAttack(final Entity shooter,
}

// terrain modifiers, since "compute" won't let me do these remotely
LosEffects los = LosEffects.calculateLOS(game, shooter, target);

// We want to check the target hex _and_ the intervening hexes for woods, smoke, etc.
final Hex targetHex = game.getBoard().getHex(targetState.getPosition());
int woodsLevel = targetHex.terrainLevel(Terrains.WOODS);
int woodsLevel = targetHex.terrainLevel(Terrains.WOODS) +
((los.thruWoods()) ? los.getLightWoods() + los.getHeavyWoods() + los.getUltraWoods() : 0);
if (targetHex.terrainLevel(Terrains.JUNGLE) > woodsLevel) {
woodsLevel = targetHex.terrainLevel(Terrains.JUNGLE);
}
if (1 <= woodsLevel) {
toHitData.addModifier(woodsLevel, TH_WOODS);
}

final int smokeLevel = targetHex.terrainLevel(Terrains.SMOKE);
// final int smokeLevel = targetHex.terrainLevel(Terrains.SMOKE);
final int smokeLevel = targetHex.terrainLevel(Terrains.SMOKE) +
los.getLightSmoke() + los.getHeavySmoke();
if (1 <= smokeLevel) {
// Smoke level doesn't necessarily correspond to the to-hit modifier
// even levels are light smoke, odd are heavy smoke
Expand Down Expand Up @@ -2837,22 +2843,35 @@ void loadAmmo(final Entity shooter,

final AmmoMounted suggestedAmmo = info.getAmmo();
final AmmoMounted mountedAmmo = getPreferredAmmo(shooter, info.getTarget(), currentWeapon, suggestedAmmo);

if (mountedAmmo == null) {
continue;
}

// If the selected ammo would cause the shot to miss, skip loading it.
final WeaponAttackAction cloneWAA = new WeaponAttackAction(info.getAction());
cloneWAA.setAmmoId(shooter.getEquipmentNum(mountedAmmo));
cloneWAA.setAmmoMunitionType(((AmmoType) mountedAmmo.getType()).getMunitionType());
cloneWAA.setAmmoCarrier(mountedAmmo.getEntity().getId());
if (cloneWAA.toHit(owner.getGame(), owner.getPrecognition().getECMInfo()).getValue() > 12) {
logger.warn(shooter.getDisplayName() + " tried to load "
+ currentWeapon.getName() + " with ammo " +
mountedAmmo.getDesc() + " but this would have caused it to miss; skipping.");
Comment on lines +2857 to +2859
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@rjhancock rjhancock Feb 1, 2025

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Warn should support varargs with %s.

continue;
}

// if we found preferred ammo but can't apply it to the weapon, log it and
// continue.
if ((null != mountedAmmo) && !shooter.loadWeapon(currentWeapon, mountedAmmo)) {
if (!shooter.loadWeapon(currentWeapon, mountedAmmo)) {
logger.warn(shooter.getDisplayName() + " tried to load "
+ currentWeapon.getName() + " with ammo " +
mountedAmmo.getDesc() + " but failed somehow.");
continue;
// if we didn't find preferred ammo after all, continue
} else if (mountedAmmo == null) {
continue;
}
final WeaponAttackAction action = info.getAction();
action.setAmmoId(shooter.getEquipmentNum(mountedAmmo));
action.setAmmoMunitionType(((AmmoType) mountedAmmo.getType()).getMunitionType());
action.setAmmoCarrier(mountedAmmo.getEntity().getId());
info.setAction(action);

// If everything looks okay, replace the old WAA with the updated copy
info.setAction(cloneWAA);
owner.sendAmmoChange(info.getShooter().getId(), shooter.getEquipmentNum(currentWeapon),
shooter.getEquipmentNum(mountedAmmo), mountedAmmo.getSwitchedReason());
}
Expand Down
24 changes: 24 additions & 0 deletions megamek/src/megamek/client/bot/princess/WeaponFireInfo.java
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Original file line number Diff line number Diff line change
Expand Up @@ -429,6 +429,30 @@ private WeaponAttackAction buildBombAttackAction(final HashMap<String, int[]> bo
) {
return 0D;
}

// Handle woods blocking cluster shots
if (game.getOptions().booleanOption(OptionsConstants.ADVCOMBAT_TACOPS_WOODS_COVER)) {
// SRMs, LB-X, Flak AC, AC-2 derivatives,
// and Silver Bullet Gauss are among the weapons
// that lose all effectiveness if this rule is
// on and the target is in woods/jungle.
if (
game.getBoard().contains(target.getPosition())
&& game.getBoard().getHex(target.getPosition()).containsAnyTerrainOf(
Terrains.WOODS, Terrains.JUNGLE
)
) {
boolean blockedByWoods = (
weapon.getType().getDamage() == WeaponType.DAMAGE_BY_CLUSTERTABLE
);
blockedByWoods |= preferredAmmo.getType().getMunitionType().contains(
AmmoType.Munitions.M_CLUSTER
);
if (blockedByWoods) {
return 0D;
}
}
}
}

// bay weapons require special consideration, by looping through all weapons and
Expand Down
34 changes: 28 additions & 6 deletions megamek/src/megamek/common/actions/WeaponAttackAction.java
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Original file line number Diff line number Diff line change
Expand Up @@ -13,12 +13,7 @@
*/
package megamek.common.actions;

import java.util.ArrayList;
import java.util.EnumSet;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.List;
import java.util.Vector;
import java.util.*;

import megamek.MMConstants;
import megamek.client.Client;
Expand Down Expand Up @@ -144,6 +139,33 @@ public WeaponAttackAction(int entityId, int targetType, int targetId, int weapon
this.bombPayloads.put("external", new int[BombType.B_NUM]);
}

// Copy constructor, hopefully with enough info to generate same to-hit data.
public WeaponAttackAction(final WeaponAttackAction other) {
this(other.getEntityId(), other.getTargetType(), other.getTargetId(), other.getWeaponId());

aimedLocation = other.aimedLocation;
aimMode = other.aimMode;
ammoCarrier = other.ammoCarrier;
ammoId = other.ammoId;
ammoMunitionType = other.ammoMunitionType;
isHomingShot = other.isHomingShot;
isPointblankShot = other.isPointblankShot;
isStrafing = other.isStrafing;
isStrafingFirstShot = other.isStrafingFirstShot;
launchVelocity = other.launchVelocity;
nemesisConfused = other.nemesisConfused;
oldTargetId = other.oldTargetId;
oldTargetType = other.oldTargetType;
originalTargetId = other.originalTargetId;
originalTargetType = other.originalTargetType;
otherAttackInfo = other.otherAttackInfo;
swarmingMissiles = other.swarmingMissiles;
swarmMissiles = other.swarmMissiles;
weaponId = other.weaponId;
this.bombPayloads.put("internal", Arrays.copyOf(other.bombPayloads.get("internal"), BombType.B_NUM));
this.bombPayloads.put("external", Arrays.copyOf(other.bombPayloads.get("external"), BombType.B_NUM));
}

public int getWeaponId() {
return weaponId;
}
Expand Down
59 changes: 55 additions & 4 deletions megamek/unittests/megamek/client/bot/princess/FireControlTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -202,6 +202,10 @@ void beforeEach() {
when(mockShooter.getHeat()).thenReturn(0);
mockShooterState = mock(EntityState.class);
mockShooterCoords = new Coords(0, 0);
when(mockShooter.getPosition()).thenReturn(mockShooterCoords);
// internal height values are 0-indexed, so meks are 1, not 2, here
when(mockShooter.getHeight()).thenReturn(1);
when(mockShooter.relHeight()).thenReturn(1);
when(mockShooterState.getPosition()).thenReturn(mockShooterCoords);
mockShooterMoveMod = new ToHitData();

Expand Down Expand Up @@ -242,6 +246,10 @@ void beforeEach() {
when(mockGame.getPlanetaryConditions()).thenReturn(planetaryConditions);

mockTarget = mock(BipedMek.class);
when(mockTarget.getPosition()).thenReturn(mockTargetCoords);
// internal height values are 0-indexed, so meks are 1, not 2, here
when(mockTarget.getHeight()).thenReturn(1);
when(mockTarget.relHeight()).thenReturn(1);
when(mockTarget.getDisplayName()).thenReturn("mock target");
when(mockTarget.getId()).thenReturn(MOCK_TARGET_ID);
when(mockTarget.isMilitary()).thenReturn(true);
Expand Down Expand Up @@ -1071,6 +1079,7 @@ void testGuessToHitModifierHelperForAnyAttack() {
.thenReturn(false);
when(mockHex.terrainLevel(Terrains.WOODS)).thenReturn(Terrain.LEVEL_NONE);
when(mockHex.terrainLevel(Terrains.JUNGLE)).thenReturn(Terrain.LEVEL_NONE);
when(mockHex.terrainLevel(Terrains.SMOKE)).thenReturn(Terrain.LEVEL_NONE);
when(mockPrincess.getMaxWeaponRange(any(Entity.class), anyBoolean())).thenReturn(21);
ToHitData expected = new ToHitData();
assertToHitDataEquals(expected, testFireControl.guessToHitModifierHelperForAnyAttack(
Expand Down Expand Up @@ -1235,17 +1244,47 @@ void testGuessToHitModifierHelperForAnyAttack() {
when(mockTargetState.getMovementType()).thenReturn(EntityMovementType.MOVE_NONE);

// Stand the target in light woods.
// 1. change coords to adjacent
mockShooterCoords = new Coords(0, 0);
when(mockShooter.getPosition()).thenReturn(mockShooterCoords);
mockTargetCoords = new Coords(1, 0);
when(mockTarget.getPosition()).thenReturn(mockTargetCoords);

// 2. change terrain info
when(mockHex.terrainLevel(Terrains.WOODS)).thenReturn(1);
when(mockHex.terrainLevel(Terrains.FOLIAGE_ELEV)).thenReturn(2);

expected = new ToHitData();
expected.addModifier(1, FireControl.TH_WOODS);
assertToHitDataEquals(expected, testFireControl.guessToHitModifierHelperForAnyAttack(mockShooter,
mockShooterState,
mockTarget,
mockTargetState,
10,
1,
mockGame));

// Stand the target farther away in light woods
mockShooterCoords = new Coords(0, 0);
when(mockShooter.getPosition()).thenReturn(mockShooterCoords);
mockTargetCoords = new Coords(0, 2);
when(mockTarget.getPosition()).thenReturn(mockTargetCoords);

expected = new ToHitData();
expected.addModifier(2, FireControl.TH_WOODS);
assertToHitDataEquals(expected, testFireControl.guessToHitModifierHelperForAnyAttack(mockShooter,
mockShooterState,
mockTarget,
mockTargetState,
2,
mockGame));
when(mockHex.terrainLevel(Terrains.WOODS)).thenReturn(Terrain.LEVEL_NONE);

// Revert positions and foliage
mockShooterCoords = new Coords(0, 0);
when(mockShooter.getPosition()).thenReturn(mockShooterCoords);
mockTargetCoords = new Coords(1, 0);
when(mockTarget.getPosition()).thenReturn(mockTargetCoords);

// Stand the target in heavy woods.
when(mockHex.terrainLevel(Terrains.WOODS)).thenReturn(2);
expected = new ToHitData();
Expand All @@ -1254,33 +1293,45 @@ void testGuessToHitModifierHelperForAnyAttack() {
mockShooterState,
mockTarget,
mockTargetState,
10,
1,
mockGame));
when(mockHex.terrainLevel(Terrains.WOODS)).thenReturn(Terrain.LEVEL_NONE);

// Stand the target in super heavy woods.
when(mockHex.terrainLevel(Terrains.WOODS)).thenReturn(3);
when(mockHex.terrainLevel(Terrains.FOLIAGE_ELEV)).thenReturn(3);
expected = new ToHitData();
expected.addModifier(3, FireControl.TH_WOODS);
assertToHitDataEquals(expected, testFireControl.guessToHitModifierHelperForAnyAttack(mockShooter,
mockShooterState,
mockTarget,
mockTargetState,
10,
1,
mockGame));
when(mockHex.terrainLevel(Terrains.WOODS)).thenReturn(Terrain.LEVEL_NONE);

// Stand the target in jungle.
when(mockHex.terrainLevel(Terrains.JUNGLE)).thenReturn(2);
when(mockHex.terrainLevel(Terrains.FOLIAGE_ELEV)).thenReturn(2);
expected = new ToHitData();
expected.addModifier(2, FireControl.TH_WOODS);
assertToHitDataEquals(expected, testFireControl.guessToHitModifierHelperForAnyAttack(mockShooter,
mockShooterState,
mockTarget,
mockTargetState,
10,
1,
mockGame));

// 3. reset coords and terrain
mockShooterCoords = new Coords(0, 0);
when(mockShooter.getPosition()).thenReturn(mockShooterCoords);
when(mockShooterState.getPosition()).thenReturn(mockShooterCoords);
mockTargetCoords = new Coords(10, 0);
when(mockTarget.getPosition()).thenReturn(mockTargetCoords);
when(mockTargetState.getPosition()).thenReturn(mockTargetCoords);

when(mockHex.terrainLevel(Terrains.JUNGLE)).thenReturn(Terrain.LEVEL_NONE);
when(mockHex.terrainLevel(Terrains.FOLIAGE_ELEV)).thenReturn(Terrain.LEVEL_NONE);

// Give the shooter the anti-air quirk but fire on a ground target.
when(mockShooter.hasQuirk(eq(OptionsConstants.QUIRK_POS_ANTI_AIR))).thenReturn(true);
Expand Down