58 lines
1.1 KiB
Lua
58 lines
1.1 KiB
Lua
Extended = {}
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-- private variables
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local callbacks = {}
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-- hooked functions
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local function onExtendedOpcode(protocol, opcode, buffer)
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local callback = callbacks[opcode]
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if callback then
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callback(protocol, opcode, buffer)
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end
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end
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-- public functions
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function Extended.init()
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connect(ProtocolGame, { onExtendedOpcode = onExtendedOpcode } )
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end
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function Extended.terminate()
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disconnect(ProtocolGame, { onExtendedOpcode = onExtendedOpcode } )
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callbacks = nil
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Extended = nil
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end
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function Extended.register(opcode, callback)
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if not callback or type(callback) ~= 'function' then
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error('Invalid callback.')
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return false
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end
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if opcode < 0 or opcode > 255 then
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error('Invalid opcode. Range: 0-255')
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return false
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end
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if callbacks[opcode] then
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error('Opcode is already taken.')
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return false
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end
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callbacks[opcode] = callback
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return true
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end
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function Extended.unregister(opcode)
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if opcode < 0 or opcode > 255 then
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error('Invalid opcode. Range: 0-255')
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return false
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end
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if not callbacks[opcode] then
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error('Opcode is not registered.')
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return false
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end
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callbacks[opcode] = nil
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return true
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end |