/* Use polynomials equations to create a lookup table for Sharp GP2D12 IR rangefinders */

#include <stdio.h>
#include <ctype.h>
#include <math.h>

// Defs
#define  MAX_ENTRIES 	255	


// Globals
unsigned char table[MAX_ENTRIES+1];

// protos
void fill_table(void);
unsigned char step2deg(unsigned int steps);

main()
{
 unsigned int value = 0;

 fill_table();

 printf("\n\runsigned char lookup_table[%u] =\n\r{", MAX_ENTRIES+1); 

 for (value = 0; value < MAX_ENTRIES ; value++)
 {
    if (!(value % 10))
	printf("\r\n");

    printf(" %u", table[value]);

    // Don't print comma for last entry
    if (!(value == MAX_ENTRIES))
	printf(", ");
 }

 printf("\n\r}");

}

void fill_table(void)
{
	unsigned int i = 0;
	
	for (i = 0 ; i <= MAX_ENTRIES ; i++)
	{	
		if (i == 0)
			table[i] = 0;
		else
			table[i] = (float)3402.5 * pow((double)i, (double)-1.0427); 

		//debug
		//printf("\n\r%i - %d", i, table[i]);
	}
}