#ifndef DS_H
#define DS_H

#ifdef __cplusplus
extern "C" {
#endif

  /**
   * Generate a diamond-square fractal map.
   */
  extern void ds ( float ***, const unsigned int );
  
  /**
   * Generate a mask using particle deposition.
   */
  extern void island ( int ***, unsigned int );

  /**
   * Normalize a float matrix between 0 and 1.
   */
  extern void norm ( float ***, unsigned int );

  /**
   * Normalize an int matrix between 0 and 255.
   */
  extern void normInt ( int ***, unsigned int );

  /**
   * Perform a 3x3 average blur.
   */
  extern void smooth ( int ***, unsigned int );

  /**
   * Multiply the diamond square map with the island mask.
   * Both matrices must have been normalized before.
   */
  extern void mult ( float ***, int *** , unsigned int);

#ifdef __cplusplus
}
#endif

#endif