Simulate a DICE THROW – C PROGRAM

In the last post I wrote about how to generate random numbers in a given range: [min, max].

In this post we will use that code to simulate a dice throw.

We would only need to modify the last program slightly, such that min=1 and max=6, for a dice.

CODE:

/***********************************************
*******************DICE THROW*******************
***********************************************/
#include<stdio.h>
#include<math.h>
/**Function that generates a random number.
Parameters: 
r0: initial (first) seed
a: scale factor , so that a*r0 give the first random number
m: gives the max. value of random numbers that can be generated (m-1)
c: additional displacement(offset) factor
**/
int rand(int r0, int a, int m, int c){
	int r1=(a*r0+c)%m;
	return r1;
}
/**Function that generates random numbers in a given range: [min,max], given a seed r0, and stores them in an array that is passed as an argument.
Parameters:
r0: initial (first) seed
a: scale factor , so that a*r0 give the first random number
m: gives the max. value of random numbers that can be generated (m-1)
c: additional displacement factor
n: no. of random numbers to be generated
x[n]: array that will store the random numbers
min: lower limit for random nos.
max: upper limit for random nos.
**/
void randomNos(int r0, int a, int m, int c, int n, int x[n], int min, int max){
	int r1=rand(r0,a,m,c);
	int r2=min+((max-min+1)*r1)/m;
	int i;
	for(i=0;i<n;i++){
		x[i]=r2;
		r1=rand(r1,a,m,c);
		r2=min+((max-min+1)*r1)/m;
	}
}
main(){
	int min=1, max=6, n;  //For dice the range of random Nos. needed is 1-6
	int a=1093, m=86436, c=18257, r0=43;	//Constants for random number generation
	printf("Enter the no. of dice throws required:\n");
	scanf("%d",&n);
	int random[n];	//array that stores the dice throw results
	randomNos(r0, a, m, c, n, random, min, max);
	int i;
	printf("The dice throws are:\n");
	for(i=0;i<n;i++){
		printf("%d\n",random[i]);
	}
}

OUTPUT:

Sample Output

[wpedon id="7041" align="center"]

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