Note: I tried to provide as much information and clarity as possible while allowing for vague terminology to make the point more concise to comprehend.
I'm working on a project for my class, and I need to be able to deny method CheckKeypress() or isKeyDown() and force a move() in the opposite direction.
Example:
1 private void checkKeypress()
2 {
3 // speed =1;
4 if (Greenfoot.isKeyDown("a"))
5 {
6 setLocation(getX()-speed, getY());
7 } // end if "to move left"
8 } // end method checkKeypress
I'm implementing it so when it touches a certain object, the player character is force moved at 180 degrees for a certain amount of cycles to create a minimum amount of distance with that object.
Example:
1 private void checkCollision()
2 {
3 if (isTouching(Threat.class))
4 {
5 if (Greenfoot.isKeyDown("a"))
6 {
7 invertMove();
8 } // end if KeyDown"a"
9 if (Greenfoot.isKeyDown("d"))
10 {
11 invertMove();
12 } // end if KeyDown"d"
13 } // end if isTouching
14 } // end method checkCollision
My problem exists in how to define a method to invert the movement while denying the keypress. This is the best I can manage on my own, as I'm still barely knowledgeable with utilizing Java.
For the sake of brevity, imagine the code mirrors the "if (isMovingLeft == true)" for "if (isMovingLeft == false)".
1 private void invertMove()
2 {
3 if (isMovingLeft == true)
4 {
5 deltaX =4;
6 moveCycle = moveCycle++;
7 setLocation( getX() + deltaX, getY());
8
9 if (moveCycle < 100)
10 {
11 isMovingLeft = !isMovingLeft;
12 deltaX = -deltaX;
13 } // end if moveCycle < 100
14 if (moveCycle == 100)
15 {
16 isMovingLeft = !isMovingLeft;
17 deltaX =0;
18 } // end if moveCycle reset
19 } // end if isMovingLeft
20 } // end method invertMove
I understand that however the keypress is denied, will effect how I can change the code to have the system force move.
