I'm trying to figure out how to make it so that when my actor (Odysseus) hits an object (Block) he stops moving. I tried what is said here but every time I reset a terminal came up and broke my game. :( help?
tallyaka wrote ...
2012/3/5
Collision
I also tried this but it didn't work either :(
It came up with the same problem. The terminal said that it was trying to access an object while it wasn't in the world, since I forgot to mention that earlier.
Block b = (Block)getOneIntersectingObject(Block.class);
public void walk()
{
if(b == null)
{
if(Greenfoot.isKeyDown("down"))
{
setLocation(getX(), getY() + 3);
setDirection(WEST);
}
if(Greenfoot.isKeyDown("right"))
{
setLocation(getX() + 3, getY());
setDirection(SOUTH);
}
if(Greenfoot.isKeyDown("left"))
{
setLocation(getX() - 3, getY());
setDirection(NORTH);
}
if(Greenfoot.isKeyDown("up"))
{
setLocation(getX(), getY() - 3);
setDirection(EAST);
}
}
}
The problem is that your code, above, is running while the actor isn't in the world. Perhaps you are calling it from the constructor, instead of from the act() method?
Nope, it's in the act() method. I just added it onto my move() method, so it was already in the act() method.
P.S. Do you know how I could make an image spin while using the mover support class's move(); without making the whole actor run in circle?? e.g. throwing a bone and it continuously moving forward but the image is still spinning. Thanks!
Then perhaps your act() method removes the object from the world, before it executes the code that you posted above?
It's the first thing in the act method. Just changed it. Still getting a terminal :(
also... check my P.S. in the previous post of mine
It's the first thing in the act method. Just changed it. Still getting a terminal :(
Is it the same stack trace? Error happening at the same place? I think you'll have to post more of your code.
Do you know how I could make an image spin while using the mover support class's move(); without making the whole actor run in circle??
Keep track of the direction of movement separately. When you move the bone, do the following steps:
1. get the current rotation, and store it in a variable
2. set the rotation to the desired direction of movement
3. move
4. restore the original rotation
danpost wrote...
Line 1 should be inside the method (between line 3 and 4).Can you be a little more specific in what you were telling me to do?
I think it's fairly specific already? Is there any particular thing that isn't clear? Have you tried writing some code, can you post it?Line 1 should be inside the method (between line 3 and 4).
I don't know how I missed this!!This is my whole Bone.class:
public class Bone extends Mover
{
private int rotation;
public Bone()
{
move();
rotation = getRotation();
}
public void act()
{
setRotation(rotation);
move(5);
}
private int rotation2;
public void spin()
{
rotation2 = rotation2 + 10;
setRotation(rotation2);
}
}So I guess your act() method is where the movement is coded. You seem to be missing step 1 (get current rotation and store it in a variable) and step 4 (restore original rotation). Add code for these around the current code in the act method.
so yes, I forgot to add spin into the act() method, but when I did do that I just ended up with a terminal where it's trying to access an actor that's not in the world. This only happened when he actually threw the bone but before that it was fine. I have no idea how to do so much rotation setting all in one act. I think it made my game explode...
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