OpenRA/mods/ra/maps/desert-shellmap/desert-shellmap.lua

if Date.Halloween then
	UnitTypes = { "ant", "ant", "ant" }
	BeachUnitTypes = { "ant", "ant" }
	ParadropUnitTypes = { "ant", "ant", "ant", "ant", "ant" }
	ProducedUnitTypes =
	{
		{ AlliedBarracks1, { "e1", "e3" } },
		{ AlliedBarracks2, { "e1", "e3" } },
		{ SovietBarracks1, { "ant" } },
		{ SovietBarracks2, { "ant" } },
		{ SovietBarracks3, { "ant" } },
		{ AlliedWarFactory1, { "jeep", "1tnk", "2tnk", "arty", "ctnk" } },
		{ SovietWarFactory1, { "3tnk", "4tnk", "v2rl", "ttnk", "apc" } }
	}
else
	UnitTypes = { "3tnk", "ftrk", "ttnk", "apc" }
	BeachUnitTypes = { "e1", "e2", "e3", "e4", "e1", "e2", "e3", "e4", "e1", "e2", "e3", "e4", "e1", "e2", "e3", "e4" }
	ParadropUnitTypes = { "e1", "e1", "e2", "e3", "e4" }
	ProducedUnitTypes =
	{
		{ AlliedBarracks1, { "e1", "e3" } },
		{ AlliedBarracks2, { "e1", "e3" } },
		{ SovietBarracks1, { "dog", "e1", "e2", "e3", "e4", "shok" } },
		{ SovietBarracks2, { "dog", "e1", "e2", "e3", "e4", "shok" } },
		{ SovietBarracks3, { "dog", "e1", "e2", "e3", "e4", "shok" } },
		{ AlliedWarFactory1, { "jeep", "1tnk", "2tnk", "arty", "ctnk" } },
		{ SovietWarFactory1, { "3tnk", "4tnk", "v2rl", "ttnk", "apc" } }
	}
end

ShipUnitTypes = { "1tnk", "1tnk", "jeep", "2tnk", "2tnk" }

ParadropWaypoints = { Paradrop1, Paradrop2, Paradrop3, Paradrop4, Paradrop5, Paradrop6, Paradrop7, Paradrop8 }

BindActorTriggers = function(a)
	if a.HasProperty("Hunt") then
		if a.Owner == allies then
			Trigger.OnIdle(a, a.Hunt)
		else
			Trigger.OnIdle(a, function(a) a.AttackMove(AlliedTechnologyCenter.Location) end)
		end
	end

	if a.HasProperty("HasPassengers") then
		Trigger.OnDamaged(a, function()
			if a.HasPassengers then
				a.Stop()
				a.UnloadPassengers()
			end
		end)
	end
end

SendSovietUnits = function(entryCell, unitTypes, interval)
	local units = Reinforcements.Reinforce(soviets, unitTypes, { entryCell }, interval)
	Utils.Do(units, function(unit)
		BindActorTriggers(unit)
	end)
	Trigger.OnAllKilled(units, function() SendSovietUnits(entryCell, unitTypes, interval) end)
end

ShipAlliedUnits = function()
	local units = Reinforcements.ReinforceWithTransport(allies, "lst",
		ShipUnitTypes, { LstEntry.Location, LstUnload.Location }, { LstEntry.Location })[2]

	Utils.Do(units, function(unit)
		BindActorTriggers(unit)
	end)

	Trigger.AfterDelay(Utils.Seconds(60), ShipAlliedUnits)
end

ParadropSovietUnits = function()
	local lz = Utils.Random(ParadropWaypoints).Location
	local start = Utils.CenterOfCell(Map.RandomEdgeCell()) + WVec.New(0, 0, Actor.CruiseAltitude("badr"))
	local transport = Actor.Create("badr", true, { CenterPosition = start, Owner = soviets, Facing = (Utils.CenterOfCell(lz) - start).Facing })

	Utils.Do(ParadropUnitTypes, function(type)
		local a = Actor.Create(type, false, { Owner = soviets })
		BindActorTriggers(a)
		transport.LoadPassenger(a)
	end)

	transport.Paradrop(lz)
	Trigger.AfterDelay(Utils.Seconds(35), ParadropSovietUnits)
end

ProduceUnits = function(t)
	local factory = t[1]
	if not factory.IsDead then
		local unitType = t[2][Utils.RandomInteger(1, #t[2] + 1)]
		factory.Wait(Actor.BuildTime(unitType))
		factory.Produce(unitType)
		factory.CallFunc(function() ProduceUnits(t) end)
	end
end

SetupAlliedUnits = function()
	Utils.Do(Map.NamedActors, function(a)
		if a.Owner == allies and a.HasProperty("Invulnerable") then
			a.Invulnerable = true
			a.Stance = "Defend"
		end
	end)
end

SetupFactories = function()
	Utils.Do(ProducedUnitTypes, function(pair)
		Trigger.OnProduction(pair[1], function(_, a) BindActorTriggers(a) end)
	end)
end

ChronoshiftAlliedUnits = function()
	local cells = Utils.ExpandFootprint({ ChronoshiftLocation.Location }, false)
	local units = { }
	for i = 1, #cells do
		local unit = Actor.Create("2tnk", true, { Owner = allies, Facing = 0 })
		BindActorTriggers(unit)
		units[unit] = cells[i]
	end
	Chronosphere.Chronoshift(units)
	Trigger.AfterDelay(Utils.Seconds(60), ChronoshiftAlliedUnits)
end

ticks = 0
speed = 5

Tick = function()
	ticks = ticks + 1
	
	local t = (ticks + 45) % (360 * speed) * (math.pi / 180) / speed;
	Camera.Position = viewportOrigin + WVec.New(19200 * math.sin(t), 20480 * math.cos(t), 0)
end

WorldLoaded = function()
	allies = Player.GetPlayer("Allies")
	soviets = Player.GetPlayer("Soviets")
	viewportOrigin = Camera.Position

	SetupAlliedUnits()
	SetupFactories()
	ShipAlliedUnits()
	ParadropSovietUnits()
	Trigger.AfterDelay(Utils.Seconds(5), ChronoshiftAlliedUnits)
	Utils.Do(ProducedUnitTypes, ProduceUnits)

	SendSovietUnits(Entry1.Location, UnitTypes, 50)
	SendSovietUnits(Entry2.Location, UnitTypes, 50)
	SendSovietUnits(Entry3.Location, UnitTypes, 50)
	SendSovietUnits(Entry4.Location, UnitTypes, 50)
	SendSovietUnits(Entry5.Location, UnitTypes, 50)
	SendSovietUnits(Entry6.Location, UnitTypes, 50)
	SendSovietUnits(Entry7.Location, BeachUnitTypes, 15)
end