#include "functionrandom.h"

#include "gamestate.h"

#include <stdlib.h>

FunctionRandom::FunctionRandom()
{
}

FunctionRandom::~FunctionRandom()
{
}

void FunctionRandom::call( class GameState &gState )
{
	Variable vHigh = gState.popDeref();
	Variable vLow = gState.popDeref();

	if( vHigh.getType() != vLow.getType() )
		throw Bu::ExceptionBase("Different types in random!");

	double dRand = random()/(double)(RAND_MAX-1);
	if( vLow.getType() == Variable::tInt )
	{
		gState.push( Variable( (int64_t)(
			(dRand*(vHigh.getInt()-vLow.getInt()+1ll))+vLow.getInt()
			) ) );
	}
	else if( vLow.getType() == Variable::tFloat )
	{
		gState.push( Variable( (double)(
			(dRand*(vHigh.getFloat()-vLow.getFloat()))+vLow.getFloat()
			) ) );
	}
}