support overloaded commands

[x87]

02CF START_SCRIPT_FIRE => ScriptFire.Create(x: float, y: float: z: float)
0325 START_CAR_FIRE => ScriptFire.Create(handle: Car)
0326 START_CHAR_FIRE => ScriptFire.Create(handle: Char)

[x87]

in JavaScript this can be solved by inspecting the input argument (typeof).