Turlte

#include <stdio.h>
#include <stdlib.h>
/******************************************/
/* Color */
typedef struct{
  float r;
  float g;
  float b;
} color_t;
/* Keeps track of the turtle postion. */
typedef struct {
  double xPos;
  double yPos;
  double dir;
} turtle_t;

/* Keeps track of color + pen + filled */
typedef struct{
  color_t color;
  int down;
  int filled;
} pen_t;


/******************************************/
/* Function prototypes */
int valid_color(color_t *c);
void pen_set_color( pen_t *p, color_t *c);
void turtle_state( turtle_t *t);
void turtle_reset( turtle_t *t);
void pen_reset( pen_t *p );
int process_commands( turtle_t *t, pen_t *p );
/*************************************************/
int main( void ) {
  turtle_t *boo;
  pen_t pen;
 boo = (turtle_t *) malloc(sizeof( turtle_t) );

 boo->xPos = 10;
 boo->yPos = 20;

  turtle_state(boo);

  turtle_reset( boo);
  /*pen_reset( &pen);*/
  turtle_state(boo);
  process_commands(boo, &pen);
  /*Free boo at the end o code*/
  free(boo);
  return 0;


}
/* process_commands */
int process_commands(turtle_t *t, pen_t *p){
  char cmd;
  color_t c;
  float x, y;

  while ((fscanf(stdin, "%c", &cmd ) != EOF)){
      switch (cmd) {
        case 'C':
          scanf("%f\n", &c.r);
          scanf("%f\n", &c.g);
          scanf("%f\n", &c.b);
          fprintf(stdout, "Pen Color (%f, %f, %f)\n", c.r, c.g, c.b );
          if(valid_color(&c) == 1 ){
            pen_set_color(p, &c);
          }
        break;
        case 'G':
        break;
      }
  }
  return 0;

}

/*
turtle_reset()
*/
void turtle_reset( turtle_t *t ){
  printf("Inside turtle Boo: Xpos: %f yPos: %f \n", (t->xPos), (t->yPos));
  t->xPos = t->yPos = 0;
  t->dir = 0;
  return;
}
/*pen reset */
void pen_reset(pen_t *p){
  p->down = p->filled = 0;
  p->color.r = 0;
  p->color.b = 0;
  p->color.g = 0;
}
/* prints out current stae of the turtle */

void turtle_state(turtle_t *t){
  printf("Current Postion X: %f Y: %f \n", (t->xPos),(t->yPos));
  return;
}
/* vaildates the color input */

int valid_color(color_t *c){
  if(((c->r) => 0 && (c->r) < 1) && ((c->g) => 0 && (c->g) < 1) && ((c->b) => 0 && (c->b) < 1)){
    return 1;
  }else {
    return 0;
  }

}

/* sets pen color */

void pen_set_color( pen_t *p, color_t *c){
  (p->color.r) = c->r;
  (p->color.g) = c->g;
  (p->color.b) = c->b;
}