force garrisoned units as turrets to have stance standground, fixes #2905

This was SVN commit r16318.

binaries/data/mods/public/simulation/components/GarrisonHolder.js

@@ -242,6 +242,9 @@ GarrisonHolder.prototype.Garrison = function(entity)
 		vgp.entity = entity;
 		cmpPosition.SetTurretParent(this.entity, vgp.offset);
 		visiblyGarrisoned = true;
+		var cmpUnitAI = Engine.QueryInterface(entity, IID_UnitAI);
+		if (cmpUnitAI)
+			cmpUnitAI.SetTurretStance();
 		break;
 	}
 	if (!visiblyGarrisoned)
@@ -337,6 +340,9 @@ GarrisonHolder.prototype.Eject = function(entity, forced)
 		if (vgp.entity != entity)
 			continue;
 		cmpNewPosition.SetTurretParent(INVALID_ENTITY, new Vector3D());
+		var cmpUnitAI = Engine.QueryInterface(entity, IID_UnitAI);
+		if (cmpUnitAI)
+			cmpUnitAI.ResetTurretStance();
 		vgp.entity = null;
 		break;
 	}

binaries/data/mods/public/simulation/components/UnitAI.js

@@ -5284,6 +5284,29 @@ UnitAI.prototype.SwitchToStance = function(stance)
 	this.SetupRangeQueries();
 };
 
+UnitAI.prototype.SetTurretStance = function()
+{
+	this.previousStance = undefined;
+	if (this.GetStance().respondStandGround)
+		return;
+	for (let stance in g_Stances)
+	{
+		if (!g_Stances[stance].respondStandGround)
+			continue;
+		this.previousStance = this.GetStanceName();
+		this.SwitchToStance(stance);
+		return;
+	}
+};
+
+UnitAI.prototype.ResetTurretStance = function()
+{
+	if (!this.previousStance)
+		return;
+	this.SwitchToStance(this.previousStance);
+	this.previousStance = undefined;
+};
+
 /**
  * Resets losRangeQuery, and if there are some targets in range that we can
  * attack then we start attacking and this returns true; otherwise, returns false.
@@ -5468,6 +5491,8 @@ UnitAI.prototype.GetStance = function()
 
 UnitAI.prototype.GetPossibleStances = function()
 {
+	if (this.IsTurret())
+		return [];
 	return Object.keys(g_Stances);
 };
 

binaries/data/mods/public/simulation/helpers/Commands.js

@@ -548,7 +548,7 @@ var commands = {
 		for each (var ent in data.entities)
 		{
 			var cmpUnitAI = Engine.QueryInterface(ent, IID_UnitAI);
-			if (cmpUnitAI)
+			if (cmpUnitAI && !cmpUnitAI.IsTurret())
 				cmpUnitAI.SwitchToStance(cmd.name);
 		}
 	},