Difference between revisions of "Set"

Set (edit)

Revision as of 13:44, 17 April 2006

168 bytes added , 13:44, 17 April 2006

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imported>JOG

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 '''Notes:'''
-When using only numbers in the calculation, you need to use at least one decimal point to tell the game that you want to use floating point division, without a decimal point the remainder is truncated at the end of the division:
+*A minus right in front of a number or variable acts as "negative"-sign. When you want to do a subtraction, you need at least one space before and behind the minus. This is the only place where you really need a space between arithmetic operators. (For instance: "a-b" will not compile; it needs to be "a - b")
+*When using only numbers in a division, you need to use at least one decimal point to tell the game that you want to use floating point division, without a decimal point the remainder is truncated at the end of the division:
   float a
   set a to 9/5    ; will set "a" to 1.000
   set a to 9.0/5  ; will set "a" to 1.800
-When your variable is an integer and you want the result to be rounded you need to use a decimal point in the division and add 0.5:
+*When you want to store the correctly rounded result of a division in an integer-variable, you need to make sure the calculation uses floating poing (so that the decimal-fraction isn't truncated) and add 0.5:
   short a
   set a to 9/5          ; will set "a" to 1
   set a to 9/5   + 0.5  ; will set "a" to 1
   set a to 9.0/5        ; will set "a" to 1
   set a to 9.0/5 + 0.5  ; will set "a" to '''2'''
   set a to 7.0/5 + 0.5  ; will set "a" to '''1'''
+ short a
+ float b
+ set b to 9
+ set a to b/5   + 0.5  ; will set "a" to '''2'''
-'''''Examples:'''''
+'''''Other Examples:'''''
   set a to 2
   set b to a*a
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   set stage to getstage quest1 + 10
-As you see, when you put a minus right in front of a variable the variable will be negated. To acomplish this, the parser needs you to put spaces around all minuses that are operators and not algebraic signs. If you use "b-a" in the above example, the script doesn't compile; it needs to be "b - a".
 [[Category:Commands]]