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Add world:hasSystem, world:getSystem

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This commit is contained in:
Tjakka5 2019-12-20 19:00:47 +01:00
parent 276a053b7f
commit 2057767e75
1 changed files with 16 additions and 0 deletions
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16
src/world.lua
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@ -109,6 +109,22 @@ function World:flush()
return self
end
function World:hasSystem(baseSystem)
if not Type.isBaseSystem(baseSystem) then
error("bad argument #1 to 'World:getSystem' (baseSystem expected, got "..type(baseSystem)..")", 2)
end
return self.__systemLookup[baseSystem] and true or false
end
function World:getSystem(baseSystem)
if not Type.isBaseSystem(baseSystem) then
error("bad argument #1 to 'World:getSystem' (baseSystem expected, got "..type(baseSystem)..")", 2)
end
return self.__systemLookup[baseSystem]
end
--- Adds a System to the World.
-- @param baseSystem The BaseSystem of the system to add
-- @param callbackName The callbackName to register to