| NWN2 Scripting. |
Simulation Training. Introduction Home First Program Seeing Results Variables and Data Types Comments Functions Data Conversion Random Numbers Concatenation Arithmetic Operators Compound Assignments One More or Less Precedence Relational Operators The Open Branch The Closed Branch Logical AND Logical OR Compound Statements ELSE If Switch Case The ? Operator The for Loop The while Loop The do while Loop Introduction to Functions Passing Values Passing Multiple Values Multiple Functions Simplifying Functions TRUE/fALSE Conditions Return Values Setting Global Variables Getting Global Variables Setting Local Variables Getting Local Variables WayPoints Introduction Static Waypoint Sets Dynamic Waypoint Sets Dynamic WP Cycles Input Output |
Data ConversionThese are times when you may want to use a certain kind of data type, such as an int (integer) and dispaly it as a string. This is especially ture when youa re using a pre-made function which may only accept string data types in its argument. These are ways of converting from one data type to another. Being ablet to do this gives us great opportunities for using the NWN2 pre-made functions in many different applications.
A Programming Problem Below is an example of a pre-made function used in NWN2 that we have used before. However, this time wew want it to dispaly a number values ( of the type int).
If we try to compile the above program, we will get an error. the error will be: ERROR: DECLARATION DOES NOT MATCH PARAMETERS. What the error means is that at least one of the variables you declared does not match the datatype requirements of one of the functions parameters. In thise case, you declared a datatype int and put it into the function argument where a datatype string was required. Recall that the function prototype is: void FloatingTextStringonCreature(string txtDisplay, object oCreature); From the above, you can see that the first parameter requries a datatype string.
Data Conversion The NWN2 editor has a built in function that converst an int datatype to a string. In the editor, it is shown as follows:
The above tell us that this function is of datatype string, meaning that when we use it, it iwll return a string. The identifier for this function is IntToString and its argument atkes one value of type int. The comments state that if there is an error, it will return a null string (shown by the double quotes with nothing in them ""). The following program illustrates how it is used.
The above program willl now compile and work correctly. The next section will show us how to use, in a very itneresting way, what has been presented here.
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