Title
if( isTouching(Border.class) ){
setRotation(getRotation()+180);
move(4);
}
Turbo_Thorsten wrote ...
2021/6/14
My character can move in 8 directions and I can't make it work so that my character can't go past a border(object not the world border).
Gbasire wrote...
do turn(number) insteadSure
import greenfoot.*; // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)
/**
* Write a description of class Player here.
*
* @author (your name)
* @version (a version number or a date)
*/
public class Player extends Actor
{
/**
* Act - do whatever the Player wants to do. This method is called whenever
* the 'Act' or 'Run' button gets pressed in the environment.
*/
int gunReloadTime;
int reloadDelayCount;
public static double bulletsshot;
public static int k=30;
public static int timerA = 100;
public static boolean l= false;
public Player ()
{
gunReloadTime = k;
reloadDelayCount = 0;
}
public void act()
{
if( isTouching(Border.class) ){
turn(180);
move(4);
}
checkKeypress();
reloadDelayCount++;
if (l == true)
{
timerA--;
if(timerA == 0)
{
k = 30;
l = false;
timerA = 100;
}
}
}
public void checkKeypress()
{
if (Greenfoot.isKeyDown("W") && Greenfoot.isKeyDown("D"))
{
setRotation(315);
move(4);
}
else if (Greenfoot.isKeyDown("A") && Greenfoot.isKeyDown("W"))
{
setRotation(225);
move(4);
}
else if (Greenfoot.isKeyDown("D") && Greenfoot.isKeyDown("S"))
{
setRotation(45);
move(4);
}
else if (Greenfoot.isKeyDown("A") && Greenfoot.isKeyDown("S"))
{
setRotation(135);
move(4);
}
else if (Greenfoot.isKeyDown("W"))
{
setRotation(270);
move(4);
}
else if (Greenfoot.isKeyDown("S"))
{
setRotation(90);
move(4);
}
else if (Greenfoot.isKeyDown("D"))
{
setRotation(0);
move(4);
}
else if (Greenfoot.isKeyDown("A"))
{
setRotation(180);
move(4);
}
if (Greenfoot.isKeyDown("space"))
{
shoot();
}
}
public void setGunReloadTime(int reloadTime)
{
gunReloadTime = reloadTime;
}
public void shoot()
{
if (reloadDelayCount >= gunReloadTime)
{
gunReloadTime = k;
Bullet bullet = new Bullet ();
getWorld().addObject(bullet, getX(), getY());
bullet.setRotation(getRotation());
reloadDelayCount = 0;
bullet.move(10.0);
bulletsshot++;
}
}
public static void fasterShooting()
{
k = 5;
l = true;
}
}
Turbo_Thorsten wrote...
The character bugs around spins and goes throgh the border with my code.danpost wrote...
Turbo_Thorsten wrote...
The character bugs around spins and goes throgh the border with my code.Update:
I changed how I move (new code below).
How can I make the borders unpassable?
import greenfoot.*; // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)
/**
* Write a description of class Player here.
*
* @author (your name)
* @version (a version number or a date)
*/
public class Player extends Actor
{
/**
* Act - do whatever the Player wants to do. This method is called whenever
* the 'Act' or 'Run' button gets pressed in the environment.
*/
int gunReloadTime;
int reloadDelayCount;
public static double bulletsshot;
public static int k=30;
public static int timerA = 150;
public static boolean l= false;
public Player ()
{
gunReloadTime = k;
reloadDelayCount = 0;
}
public void act()
{
checkKeypress();
if( isTouching(Border.class) ){
turn(180);
move(4);
}
reloadDelayCount++;
if (l == true)
{
timerA--;
if(timerA == 0)
{
k = 30;
l = false;
timerA = 150;
}
}
}
public void checkKeypress()
{
if (Greenfoot.isKeyDown("W") && Greenfoot.isKeyDown("D"))
{
setLocation(getX()+3, getY()-3);
}
else if (Greenfoot.isKeyDown("A") && Greenfoot.isKeyDown("W"))
{
setLocation(getX()-3, getY()-3);
}
else if (Greenfoot.isKeyDown("D") && Greenfoot.isKeyDown("S"))
{
setLocation(getX()+3, getY()+3);
}
else if (Greenfoot.isKeyDown("A") && Greenfoot.isKeyDown("S"))
{
setLocation(getX()-3, getY()+3);
}
else if (Greenfoot.isKeyDown("W"))
{
setLocation(getX(), getY()-4);
}
else if (Greenfoot.isKeyDown("S"))
{
setLocation(getX(), getY()+4);
}
else if (Greenfoot.isKeyDown("D"))
{
setLocation(getX()+4, getY());
}
else if (Greenfoot.isKeyDown("A"))
{
setLocation(getX()-4, getY());
}
shoot();
}
public void setGunReloadTime(int reloadTime)
{
gunReloadTime = reloadTime;
}
public void shoot()
{
if (reloadDelayCount >= gunReloadTime)
{
gunReloadTime = k;
MouseInfo mouse = Greenfoot.getMouseInfo();
if (mouse == null) return;
int x = mouse.getX();
int y = mouse.getY();
Bullet bullet = new Bullet();
getWorld().addObject(bullet, getX(), getY());
bullet.turnTowards(x, y);
reloadDelayCount = 0;
bullet.move(10.0);
bulletsshot++;
}
}
public static void fasterShooting()
{
k = 5;
l = true;
}
}
Two problems with it. One is that the moving distance does not match the "rebound" distance (when a border is encountered). The other is "rebound" code does not know which direction of movement caused the collision. Turning 180 does no good unless the actor faces the direction it moved. I would move the "rebound" code into the checkKeypress method and rewrite the method as follows:
private void checkKeypress()
{
final int speed = 3;
int dx = 0, dy = 0;
if (Greenfoot.isKeyDown("d")) dx++;
if (Greenfoot.isKeyDown("a")) dx--;
if (Greenfoot.isKeyDown("s")) dy++;
if (Greenfoot.isKeyDown("w")) dy--;
if (dx == 0 && dy == 0) return;
setLocation(getX()+speed *dx, getY()+speed *dy);
if (isTouching(Border.class))
{
setLocation(getX()-speed *dx, getY()-speed *dy);
}
}danpost wrote...
Two problems with it. One is that the moving distance does not match the "rebound" distance (when a border is encountered). The other is "rebound" code does not know which direction of movement caused the collision. Turning 180 does no good unless the actor faces the direction it moved. I would move the "rebound" code into the checkKeypress method and rewrite the method as follows:
private void checkKeypress()
{
final int speed = 3;
int dx = 0, dy = 0;
if (Greenfoot.isKeyDown("d")) dx++;
if (Greenfoot.isKeyDown("a")) dx--;
if (Greenfoot.isKeyDown("s")) dy++;
if (Greenfoot.isKeyDown("w")) dy--;
if (dx == 0 && dy == 0) return;
setLocation(getX()+speed *dx, getY()+speed *dy);
if (isTouching(Border.class))
{
setLocation(getX()-speed *dx, getY()-speed *dy);
}
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