Mess with upvalues so arrows can shoot.

game/engines/default/engine/Entity.lua

@@ -123,12 +123,15 @@ function _M:init(t, no_default)
 	end
 
 	if config.settings.cheat then
-		local ok, err = table.check(self, function(t, where, v, tv)
+		local ok, err = table.check(
+			self,
+			function(t, where, v, tv)
 				if tv ~= "function" then return true end
 				local n, v = debug.getupvalue(v, 1)
 				if not n then return true end
 				return nil, ("Entity closure checker: %s has upvalue %s"):format(tostring(where), tostring(n))
-			end)
+			end,
+			function(value) return not value._allow_upvalues end)
 		if not ok then
 			error("Entity definition has a closure: "..err)
 		end

game/engines/default/engine/interface/ActorProject.lua

@@ -318,7 +318,7 @@ function _M:projectile(t, x, y, damtype, dam, particles)
 
 	typ.line_function:set_corner_block(block_corner)
 
-	local proj = require(self.projectile_class):makeProject(self, t.display, {x=x, y=y, start_x=typ.start_x, start_y=typ.start_y, damtype=damtype, tg=t, typ=typ, dam=dam, particles=particles})
+	local proj = require(self.projectile_class):makeProject(self, t.display, {x=x, y=y, start_x=typ.start_x, start_y=typ.start_y, damtype=damtype, tg=t, typ=typ, dam=dam, particles=particles, _allow_upvalues = true,})
 	game.zone:addEntity(game.level, proj, "projectile", typ.start_x, typ.start_y)
 
 	self:check("on_projectile_fired", proj, typ, x, y, damtype, dam, particles)

game/engines/default/engine/interface/ActorTalents.lua

@@ -45,6 +45,7 @@ end
 --- Defines one talent type(group)
 -- Static!
 function _M:newTalentType(t)
+	t.__CLASSNAME = 'engine.interface.ActorTalents.TalentType'
 	assert(t.name, "no talent type name")
 	assert(t.type, "no talent type type")
 	t.description = t.description or ""
@@ -57,6 +58,7 @@ end
 --- Defines one talent
 -- Static!
 function _M:newTalent(t)
+	t.__CLASSNAME = 'engine.interface.ActorTalents.Talent'
 	assert(t.name, "no talent name")
 	assert(t.type, "no or unknown talent type")
 	if type(t.type) == "string" then t.type = {t.type, 1} end