Add unit defeat event reactions

tools/validate_data.ps1

@@ -92,7 +92,7 @@ $validConditionTypes = @(
     "all",
     "any"
 )
-$validTriggers = @("battle_start", "battle_begin", "turn_start", "unit_reaches_tile")
+$validTriggers = @("battle_start", "battle_begin", "turn_start", "unit_reaches_tile", "unit_defeated")
 $validActions = @("log", "dialogue", "set_objective", "grant_item", "grant_items", "spawn_deployment", "spawn_deployments", "withdraw_unit", "withdraw_units")
 $validEffects = @("heal_hp", "heal_mp", "cure_status")
 $validItemKinds = @("weapon", "armor", "accessory", "consumable")
@@ -398,6 +398,55 @@ function Check-Unit-Reaches-Event-When($When, [string]$ScenarioId, [int]$Width,
     }
 }
 
+function Check-Unit-Defeated-Event-When($When, [string]$ScenarioId, $KnownUnitIds) {
+    $unitIdsValue = $null
+    if (Has-Prop $When "unit_ids") {
+        $unitIdsValue = $When.unit_ids
+        if ($null -ne $unitIdsValue -and -not ($unitIdsValue -is [System.Array])) {
+            Fail "Scenario $ScenarioId unit_defeated event unit_ids must be an array."
+        }
+        foreach ($unitIdValue in @($unitIdsValue)) {
+            $unitId = [string]$unitIdValue
+            if ([string]::IsNullOrWhiteSpace($unitId)) {
+                Fail "Scenario $ScenarioId unit_defeated event has empty unit id."
+            }
+            if ($null -ne $KnownUnitIds -and (-not $KnownUnitIds.Contains($unitId))) {
+                Fail "Scenario $ScenarioId unit_defeated event references unknown unit: $unitId"
+            }
+        }
+    }
+
+    $officerIdsValue = $null
+    if (Has-Prop $When "officer_ids") {
+        $officerIdsValue = $When.officer_ids
+        if ($null -ne $officerIdsValue -and -not ($officerIdsValue -is [System.Array])) {
+            Fail "Scenario $ScenarioId unit_defeated event officer_ids must be an array."
+        }
+        foreach ($officerIdValue in @($officerIdsValue)) {
+            $officerId = [string]$officerIdValue
+            if ([string]::IsNullOrWhiteSpace($officerId) -or (-not $officerIds.Contains($officerId))) {
+                Fail "Scenario $ScenarioId unit_defeated event references unknown officer: $officerId"
+            }
+        }
+    }
+
+    $team = [string](Get-Prop $When "team" "")
+    if (-not [string]::IsNullOrWhiteSpace($team) -and $team -ne "player" -and $team -ne "enemy") {
+        Fail "Scenario $ScenarioId unit_defeated event has unknown team: $team"
+    }
+    $unitIdCount = 0
+    if ($null -ne $unitIdsValue) {
+        $unitIdCount = @($unitIdsValue).Count
+    }
+    $officerIdCount = 0
+    if ($null -ne $officerIdsValue) {
+        $officerIdCount = @($officerIdsValue).Count
+    }
+    if ([string]::IsNullOrWhiteSpace($team) -and $unitIdCount -le 0 -and $officerIdCount -le 0) {
+        Fail "Scenario $ScenarioId unit_defeated event needs team, unit_ids, or officer_ids."
+    }
+}
+
 function Resolve-Class-Id($Deployment, [string]$ScenarioId) {
     $classId = [string](Get-Prop $Deployment "class_id" "")
     if (-not [string]::IsNullOrWhiteSpace($classId)) {
@@ -1763,6 +1812,9 @@ foreach ($scenario in $campaign.scenarios) {
         if ($trigger -eq "unit_reaches_tile") {
             Check-Unit-Reaches-Event-When $when $scenarioId $width $height $rows $knownUnitIds
         }
+        if ($trigger -eq "unit_defeated") {
+            Check-Unit-Defeated-Event-When $when $scenarioId $knownUnitIds
+        }
         foreach ($action in (Get-Prop $event "actions" @())) {
             $actionType = [string]$action.type
             if (-not $validActions.Contains($actionType)) {