historic_bruno
c02818ceea
Cleans up rmgen library. Fixes bug in bound checking for circular maps. This was SVN commit r9388.
55 lines
1.3 KiB
JavaScript
55 lines
1.3 KiB
JavaScript
// TODO: rename/change these functions, so the bounds are more clear
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/*
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* Return a random floating point number using Math.random library
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*
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* If no parameter given, the returned float is in the interval [0, 1)
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* If two parameters are given, they are minval and maxval, and the returned float is in the interval [minval, maxval)
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*/
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function randFloat()
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{
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if (arguments.length == 0)
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{
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return Math.random();
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}
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else if (arguments.length == 2)
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{
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var minVal = arguments[0];
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var maxVal = arguments[1];
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return minVal + randFloat() * (maxVal - minVal);
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}
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else
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{
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error("randFloat: invalid number of arguments: "+arguments.length);
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return undefined;
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}
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}
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/*
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* Return a random integer using Math.random library
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*
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* If one parameter given, it's maxval, and the returned integer is in the interval [0, maxval)
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* If two parameters are given, they are minval and maxval, and the returned integer is in the interval [minval, maxval]
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*/
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function randInt()
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{
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if (arguments.length == 1)
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{
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var maxVal = arguments[0];
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return Math.floor(Math.random() * maxVal);
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}
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else if (arguments.length == 2)
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{
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var minVal = arguments[0];
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var maxVal = arguments[1];
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return minVal + randInt(maxVal - minVal + 1);
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}
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else
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{
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error("randInt: invalid number of arguments: "+arguments.length);
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return undefined;
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}
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}
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