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Fixed AI unit attack decision making (#10036)

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* Limited the impact of a high attacksToKill value

* Fixed chooseAttackTarget returning nothing when attackableEnemies only has one element
This commit is contained in:
Oskar Niesen 2023-09-04 06:37:44 -05:00 committed by GitHub
parent ac5e51dbea
commit 087c2a0946
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 11 additions and 5 deletions
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16
core/src/com/unciv/logic/automation/unit/BattleHelper.kt
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@ -9,7 +9,6 @@ import com.unciv.logic.city.City
import com.unciv.logic.battle.TargetHelper
import com.unciv.logic.map.mapunit.MapUnit
import com.unciv.models.ruleset.unique.UniqueType
import kotlin.math.max
object BattleHelper {
@ -59,15 +58,21 @@ object BattleHelper {
* Choses the best target in attackableEnemies, this could be a city or a unit.
*/
private fun chooseAttackTarget(unit: MapUnit, attackableEnemies: List<AttackableTile>): AttackableTile? {
// Get the highest valued attackableEnemy
var highestAttackValue = 0
val attackTile = attackableEnemies.maxByOrNull { attackableEnemy ->
var attackTile: AttackableTile? = null
// We always have to calculate the attack value even if there is only one attackableEnemy
for (attackableEnemy in attackableEnemies) {
val tempAttackValue = if (attackableEnemy.tileToAttack.isCityCenter())
getCityAttackValue(unit, attackableEnemy.tileToAttack.getCity()!!)
else getUnitAttackValue(unit, attackableEnemy)
highestAttackValue = max(tempAttackValue, highestAttackValue)
tempAttackValue
if (tempAttackValue > highestAttackValue) {
highestAttackValue = tempAttackValue
attackTile = attackableEnemy
}
}
// todo For air units, prefer to attack tiles with lower intercept chance
// Only return that tile if it is actually a good tile to attack
return if (highestAttackValue > 30) attackTile else null
}
@ -124,7 +129,8 @@ object BattleHelper {
attackValue = 100
// Associate enemy units with number of hits from this unit to kill them
val attacksToKill = (militaryUnit.health.toFloat() /
BattleDamage.calculateDamageToDefender(MapUnitCombatant(attacker), MapUnitCombatant(militaryUnit))).coerceAtLeast(1f)
BattleDamage.calculateDamageToDefender(MapUnitCombatant(attacker), MapUnitCombatant(militaryUnit)))
.coerceAtLeast(1f).coerceAtMost(10f)
// We can kill them in this turn
if (attacksToKill <= 1) attackValue += 30
// On average, this should take around 3 turns, so -15