Add events for when squad enters/exits game

Also nuke external library with same events.

scripts/mod_loader/bootstrap/modApi.lua

@@ -101,6 +101,8 @@ t.onWindowHidden = Event()
 t.onMissionChanged = Event()
 t.onMissionDismissed = Event()
 t.onGameVictory = Event()
+t.onSquadEnteredGame = Event()
+t.onSquadExitedGame = Event()
 
 t.onShiftToggled = Event()
 t.onAltToggled = Event()

scripts/mod_loader/compat/__scripts.lua

@@ -5,7 +5,8 @@ local scripts = {
 	"asserts",
 	"achievement",
 	"dialog_helper",
-	"difficulty"
+	"difficulty",
+	"nuke",
 }
 
 local rootpath = GetParentPath(...)

scripts/mod_loader/compat/nuke.lua

@@ -0,0 +1,4 @@
+
+-- nuke libraries that have been migrated to the mod loader
+
+SquadEvents = { version = tostring(INT_MAX) }

scripts/mod_loader/modapi/squad.lua

@@ -68,3 +68,24 @@ function modApi:addSquad(squad, name, desc, icon)
 	table.insert(self.squad_text, desc)
 	table.insert(self.squad_icon, icon or "resources/mods/squads/unknown.png")
 end
+
+local function onGameEntered()
+	local squadData = GAME.additionalSquadData
+	local squadId = squadData.squad
+
+	if squadId ~= nil then
+		modApi.events.onSquadEnteredGame:dispatch(squadId)
+	end
+end
+
+local function onGameExited()
+	local squadData = GAME.additionalSquadData
+	local squadId = squadData.squad
+
+	if squadId ~= nil then
+		modApi.events.onSquadExitedGame:dispatch(squadId)
+	end
+end
+
+modApi.events.onGameEntered:subscribe(onGameEntered)
+modApi.events.onGameExited:subscribe(onGameExited)