Fix #516: add missing bottom hatch to vertical hub node from planetside

Author: JonnyOThan

CHANGELOG.md

@@ -27,6 +27,7 @@
 * Add support for ReStockPlus spherical pod parts when Making History is not installed
 * Fix incorrect part name for orbital engine cluster from Near Future Spacecraft
 * Fix issues with B9PSConditionalProp when applied to hatches.  Props are now deleted instead of deactivated if their subtype is not active.
+* Add missing bottom hatch to vertical hub node from Planetside
 
 
 ## 0.2.20.2 - 2025-10-24

GameData/FreeIva/MMSEV/Configs/base_node_vertical.cfg

@@ -110,6 +110,47 @@
 	}
 }
 
+// Add bottom hatch if it appears to be missing
+@INTERNAL[Benjee10_MMSEV_base_node_vertical_IVA]:HAS[!PROP[htProps_HatchCBM]:HAS[@MODULE[HatchConfig]:HAS[#attachNodeId[node_stack_bottom]]]]:FOR[FreeIva]
+{
+	PROP
+	{
+		name = htProps_HatchCBM
+		position = 0, 0, 0.624999762
+		rotation = 0.707106888, 0, 0, -0.70710665
+		MODULE
+		{
+			name = HatchConfig
+			attachNodeId = node_stack_bottom
+			cutoutTargetTransformName = Circle.009
+			airlockName = hatchBottomA
+		}
+
+		MODULE
+		{
+			name = B9PSConditionalProp
+			moduleID = bottom
+			subtype = Bare
+		}
+	}
+
+	// copy the hatch and configure it for the other airlock
+	+PROP[htProps_HatchCBM]:HAS[@MODULE[B9PSConditionalProp]:HAS[#moduleID[bottom]]]
+	{
+		@MODULE[HatchConfig]
+		{
+			@airlockName = hatchBottomB
+			-cutoutTargetTransformName = // remove the cutout so it doesn't happen twice
+		}
+
+		@MODULE[B9PSConditionalProp]
+		{
+			@subtype = Endcap
+			subtype = EndcapB
+		}
+	}
+}
+
 // set up the base internal with some common defaults
 @INTERNAL[Benjee10_MMSEV_base_node_vertical_IVA]:HAS[!MODULE[InternalModuleFreeIva]]:FOR[FreeIva]
 {
@@ -184,7 +225,7 @@
 	}
 
 	// the partswitch for the top node has different airlocks
-	@PROP[htProps_HatchCBM]
+	@PROP[htProps_HatchCBM]:HAS[!MODULE[HatchConfig]]
 	{
 		MODULE
 		{
@@ -203,7 +244,7 @@
 	}
 
 	// copy the hatch and configure it for the other airlock
-	+PROP[htProps_HatchCBM]
+	+PROP[htProps_HatchCBM]:HAS[@MODULE[B9PSConditionalProp]:HAS[#moduleID[top]]]
 	{
 		@MODULE[HatchConfig]
 		{