I want a code where if my player jumps on top of the enemies he is removed.
SWAG wrote ...
2013/5/12
CODE HELP PLZ
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(1) when you say 'jumps on top of the enemies', do you mean intersects any enemy object?
(2) do you at least know what code to use within the Player class to remove the player object?
danpost wrote...
(1) when you say 'jumps on top of the enemies', do you mean intersects any enemy object?
(2) do you at least know what code to use within the Player class to remove the player object?You just need to create the proper condition checks. Maybe set up a 'hit-box' using coordinates with respect to the intersecting enemy's location. Like, if the intersecting enemy was at (x, y), what range with respect to x and y should your player's location coordinates be, to be removed. It would really depend on how restrictive you want to be; but, for an example, one way is that the player's x-coordinate has to be between 'x-enemy.getImage().getWidth()/2' and 'x+enemy.getImage().getWidth()/2', and the player's y-coordinate must be less than that of the enemy's.
danpost wrote...
You just need to create the proper condition checks. Maybe set up a 'hit-box' using coordinates with respect to the intersecting enemy's location. Like, if the intersecting enemy was at (x, y), what range with respect to x and y should your player's location coordinates be, to be removed. It would really depend on how restrictive you want to be; but, for an example, one way is that the player's x-coordinate has to be between 'x-enemy.getImage().getWidth()/2' and 'x+enemy.getImage().getWidth()/2', and the player's y-coordinate must be less than that of the enemy's.I practically gave you the code above:
Actor enemy = getOneIntersectingObject(Enemy.class);
if (getX() > enemy.getX()-enemy.getImage().getWidth()/2 &&
getX() < enemy.getX()+enemy.getImage().getWidth()/2 &&
getY() < enemy.getY())
getWorld().removeObject(this);danpost wrote...
I practically gave you the code above:
Actor enemy = getOneIntersectingObject(Enemy.class);
if (getX() > enemy.getX()-enemy.getImage().getWidth()/2 &&
getX() < enemy.getX()+enemy.getImage().getWidth()/2 &&
getY() < enemy.getY())
getWorld().removeObject(this);
Do you want just the hit enemy to change image and freeze, or all enemies at once?
Add a 'stunTimer' in the Enemy class as follows:
// add instance int field
private int stunTimer = 0;
// start your act method with
public void act()
{
if (stunTimer > 0) // if frozen
{
stunTimer--;
if (stunTimer > 0) return; // if timer not done, exit method
setImage("up.png"); // restore normal image
}
// rest of act method
}
// when enemy hit, do the following
setImage("down.png");
stunTimer = 900;danpost wrote...
Add a 'stunTimer' in the Enemy class as follows:
// add instance int field
private int stunTimer = 0;
// start your act method with
public void act()
{
if (stunTimer > 0) // if frozen
{
stunTimer--;
if (stunTimer > 0) return; // if timer not done, exit method
setImage("up.png"); // restore normal image
}
// rest of act method
}
// when enemy hit, do the following
setImage("down.png");
stunTimer = 900;Then, in the Enemy class, make a method to call when hit is detected in the player class.
Call this method from the player class when hit.
public void setStunned()
{
setImage("down.png");
stunTimer = 900;
}Enemy enemy = (Enemy) getOneIntersectingObject(Enemy.class);
if (enemy != null &&
getX() > enemy.getX()-enemy.getImage().getWidth()/2 &&
getX() < enemy.getX()+enemy.getImage().getWidth()/2 &&
getY() < enemy.getY())
enemy.setStunned();danpost wrote...
Then, in the Enemy class, make a method to call when hit is detected in the player class.
public void setStunned()
{
setImage("down.png");
stunTimer = 900;
}Enemy enemy = (Enemy) getOneIntersectingObject(Enemy.class);
if (enemy != null &&
getX() > enemy.getX()-enemy.getImage().getWidth()/2 &&
getX() < enemy.getX()+enemy.getImage().getWidth()/2 &&
getY() < enemy.getY())
enemy.setStunned();First off, I do not know what the image filename is for the initial image of the Enemy, so I used that because the stunned image is "down.png". You have to change "up.png" to whatever image you are using when the enemy is moving.
You obviously did not put things where I said to put them. The 'setStunned' method should be in the Enemy class. The last code-set (starting 'Enemy enemy = ...') should go in the Player class (it is what detects the player on top of an enemy and stuns it).
You should not be getting that error message in the player class.
If you put the field declaration for 'stunTimer' in the Enemy class and started the 'act' method in the Enemy class as I stated above, your enemy should only stop moving when it is stunned.
danpost wrote...
First off, I do not know what the image filename is for the initial image of the Enemy, so I used that because the stunned image is "down.png". You have to change "up.png" to whatever image you are using when the enemy is moving.
You obviously did not put things where I said to put them. The 'setStunned' method should be in the Enemy class. The last code-set (starting 'Enemy enemy = ...') should go in the Player class (it is what detects the player on top of an enemy and stuns it).
You should not be getting that error message in the player class.
If you put the field declaration for 'stunTimer' in the Enemy class and started the 'act' method in the Enemy class as I stated above, your enemy should only stop moving when it is stunned.There are more replies on the next page.
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