walkrate.c

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
int main( int argc, const char **argv ) {
	if( argc >= 3 ) {
		float cycle = atof(argv[1]);
		float distance = atof(argv[2]);

		float excess = fmodf( distance, cycle );

		// P% playrate -> cycle + excess
		// ?% playrate -> cycle

		// ?% playrate = P% * (cycle) / (cycle+excess)
		float playrate = 1.00f * (cycle) / (cycle+excess);
		playrate = playrate > 0 ? 1.f / playrate : 0;
		playrate = playrate > 1.5 ? playrate - 1 : playrate;

		printf("walk-cycle=%f estimated-distance=%f estimated-excess=%f play-rate=%f\n", cycle, distance, excess, playrate);
	}
}