Programming Resources
For Fun and Learning
Charles Cusack
Computer Science
Hope College
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Alice

TargetGame


Description

Run it
Download jar file (Right click)

ABullet.java
AClip.java
AClipGun.java
ATarget.java
AppletStarter.java
BulletTimer.java
GameTimer.java
LSBullet.java
LSClip.java
LSGun.java
ResetButton.java
TargetGame.java
TargetTimer.java

ATarget.java

//-----------------------------------------------------------------------------
// Class:  	ATarget
// Author:	Written by Chuck Cusack
// Date: 	September 2001
// Description: A moving target for bullets to hit.
//-----------------------------------------------------------------------------
import aLibrary.ARectangle;
import java.awt.Color;
//-----------------------------------------------------------------------------

public class ATarget extends ARectangle {

//-----------------------------------------------------------------------------
// instance variables
//
  private TargetGame myTargetGame;        // The controlling TargetGame
  private boolean movingUp;      // TargetGameection the target it moving
  private TargetTimer theTimer;  // The timer to control movement
  private boolean hit;           // Whether or not it has been hit
  private int speed;             // The speed of the target
  private int value;             // The value if Hit
  private int type;              // The number corresponding to choice below
  private final Color choices[]={ // Color, Speed
          Color.magenta,
          Color.cyan,
          Color.blue,
          Color.green,
          Color.orange,
          Color.red,
          Color.pink
          };
//-----------------------------------------------------------------------------
// constructor
// postconditon: A width by height target is created at (x,y) and movement
// 	is started (even though the target is not on anything)
//
  public ATarget(int x,int y,int width,int height,int level,TargetGame D) {
	super(x,y,width,height);
	myTargetGame=D;
        type=(int)(Math.random()*(choices.length));
        //System.out.println(type);
        speed=(type+1)*(int)(1+Math.random()*level);
	value=(int)(speed*(240-height)/10);
        setColor(choices[type]);
        setToFill();
	movingUp=false;
        hit=false;
        theTimer=new TargetTimer(this,D);
        theTimer.scheduleEvents(.1);
  }
//-----------------------------------------------------------------------------
// Return value
//
public int getValue() {
	return value;
}
//-----------------------------------------------------------------------------
// Checks to see if bullet B has hit the target
// postcondition: If the bullet has hit the target, erase the target
// 	otherwise, do nothing.
// returns: true if it hit, false otherwise.
//
  public boolean isHit(ABullet B) {
      if(hit==false) {
        for(int i=0;i<10;i++) { // Bullet jumps by 20 units, so check all for hit.
            if(this.contains(B.getX()+B.getWidth()+i-this.getX(),
                            B.getY()+(B.getHeight()/2)-this.getY()) ) {
                theTimer.stop();
                hit=true;
                this.remove();
                return true;
            }
          }
      }
      return false;
  }
//-----------------------------------------------------------------------------
// Move the target by speed units up or down, depending on current direction.
// postcondition: target is speed units farther up or down, or
// 	unmoved and direction changed if it is too close to edge.
//
  public void MoveTarget() {
      if(movingUp) {
          if (getY()<speed) {
              movingUp=false;
              translate(-10,-getY());
              if(getX()<225) {
                theTimer.stop();
                remove();
              }
          }
          else {
              translate(0,-speed);
          }
      }
      else if(getY()+getHeight()>myTargetGame.getHeight()-50-speed) {
          movingUp=true;
          translate(-10,0);
             if(getX()<225) {
                remove();
                theTimer.stop();
              }
      }
      else {
          translate(0,speed);
      }
  }
//-----------------------------------------------------------------------------
// return speed
//
public int getSpeed() {
  return speed;
}
//-----------------------------------------------------------------------------
// Stop the timer
//
public void start() {
    theTimer.start();
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// Stop the timer
//
public void stop() {
    theTimer.stop();
}
//-----------------------------------------------------------------------------
}