/*
  Bruce A. Maxwell
  CS 153, Project 8
  Fall 2018

  Animate function for project 8
*/


/*
  This function generates a series of lines that make it look like a
  dart is falling down. The speed of the drawing is governed by the
  vel argument, and the angle of the dart is determined by the y
  argument.

  The size of the target should probably be a parameter.
 */
int animate(float y, float vel) {
  int deltat = 3000 / vel;  // distance / velocity = time
  float position = 20;
  const int Steps = 10;
  const int Screen = 40;
  const int TargetSize = 10;
  int targetStart = Screen/2 - TargetSize/2;
  int targetEnd   = Screen/2 + TargetSize/2;
  char s[64];

  if(vel < 3) {
    Serial.println("Scrub");
    return(0);
  }
  
  for(int i=0;i<Steps;i++) {
    // use a screen 40 characters wide
    for(int j=0;j<Screen;j++) {
      s[j] = ' ';
      if( j == (int)position )
	s[j] = '|';
    }
    s[Screen] = '\0';
    Serial.println(s);
    position += y;
    
    delay(deltat);
  }

  for(int i=0;i<Screen;i++) {
    s[i] = ' ';
    if( i >= targetStart && i <= targetEnd )
      s[i] = '=';
  }
  s[Screen] = '\0';
  Serial.println(s);

  if( (int)position >= targetStart  && (int)position <= targetEnd ) {
    Serial.println("                Winner!!!");
    return(1);
  }
  Serial.println("                Missed!!!");
  return(0);
}