////  Q0.java -- CST 112 Quiz #1
////  +++ Rahul Mathur


////////  GLOBAL DECLARATIONS  //////// 
String help=  "To set the dart click below horizon"
  + ",click flag to throw the dart"
  + "r resets dart & target, q to quit.";

float horizon;
float flagX, flagY;                  // Coordinates of flag
float targetX, targetY;              // Coordinates of the bullseye.
float dartX, dartY, dartDX, dartDY;  // Coordinates & velocity for dart.
int score=0;

////////  SETUP //////// 
void setup() {
  size(800, 600);
  flagX=width/2;
  flagY=20;
  reset();
}
void reset() {
    horizon=  height / 4;
    targetX=  width-120;
    targetY=  random( horizon, height-100 );
    dartDX=dartDY=0;
    dartX=  100;
    dartY=  random( horizon, height-100 );
}

////////  NEXT FRAME //////// 
void draw() {
    scene();
    action();
    messages();
}

////////  Draw the scene //////// 
void scene() {
    background( 0, 0, 255 );            // Background should be sky-blue! 
    fill( 0,255,0 );                    // Grass should be green
    rect( 0,horizon, width,height*3/4 );

    // Flag //
    fill(255,0,255); rect(flagX,flagY, 40,100);  
    fill(0); rect(flagX+40,flagY, 40,100);  
    fill(255,0,255); rect(flagX+80,flagY, 40,100);  
    fill(255); text("Flag", flagX,flagY); 
  
    // Target //
    fill(255,0,0); ellipse(targetX,targetY, 200,00); fill(255,0,0); text("Bullseye", targetX,targetY); 

  fill(255,0,0); 
  ellipse(targetX,targetY, 200,200);

  fill(255);
  ellipse(targetX,targetY, 150,150);

 fill(255,0,0);
  ellipse(targetX,targetY, 100,100);

fill(255);
  ellipse(targetX,targetY, 50,50);
}

////////  ACTION:
////////    * Move the dart (until it stops), update score, etc.
////////    * Draw everything on the screen
void action() {

    // Move the dart
    dartX = dartX + dartDX;
    // STOP the dart when reaches target.
    if (dartX >= targetX) {
        dartX=0;
       
    }
    
    // Draw the dart, etc.

    fill(5,10,255); ellipse( dartX,dartY, -80,20 ); fill(0); text( "DART", dartX, dartY );


}

//////// MESSAGES:  title, author, score, etc. //////// 
void messages() {
    fill(120);
    textSize(20);
    text( "CST 112 Quiz #1", 10, 20 );
    text( "SCORE : 50", width*3/4,20 );
    textSize(12);
    text( help, 20,50 );
    text( "+++ Rahul Mathur +++", 10, height-10 );
}

//////// EVENT HANDLERS:  keys & mouse ////////
void keyPressed() {
    if (key == 'q') { exit(); }
    if (key == 'r') { reset(); }
    if (key == 'd') { 
    }
   
}
void mousePressed() {
}