CODEWITHSUNDEEP
javaawtintersectionjava-2d
angel darkland
angel darkland

Reputation: 73

Java Intersection Error

I have this code for my DoLogic method. And I'm trying to do a intersection between the shots and the obstacles but I really can't think of nothing.. cause both are different objects.. i tried to do some but it didn't really detect something at all.

for(int i=0; i<shots.length; i++)
{
    if(shots[i] != null)
    {
        shots[i].moveShot(SHOTSPEED);
        if(shots[i].getXPos() > 1280)
        {
            shots[i] = null;
        }
    }
}
for(int i=0; i<obstacles.length; i++)
{
    if(obstacles[i] == null) 
    { 
        obstacles[i] = generateObstacle(); 
        break;
    } 
    if(obstacles[i] != null)
    {
        obstacles[i].moveObstacle(); 
        if(obstacles[i].getXPos() < 10) 
        { 
            obstacles[i] = null; 
        }
        else if(obstacles[i].intersects(Player1.character))
        {
            obstacles[i] = null;
            GameSounds.hit("/resources/8bit_bomb_explosion.wav");
            lives--;
        }
    }
}

Can you guys give me an example or at least an advice how to do an intersection between an obstacle and a shot?

Upvotes: 0

Views: 135

Answers (1)

Andrew Thompson
Andrew Thompson

Reputation: 168835

Do these classes implement Shape? If not, they should. See the answer to Collision detection with complex shapes for an SSCCE.

..and i should implement the Rectangle in Obstacle and Oval in shot?

That seems logical to me, from your description of both objects.

..i just type implements Shape?

I would tend to use a Rectangle2D or Rectangle2D.Double for the obstacle & an Ellipse2D or Ellipse2D.Double for the shot. Rather than extend them, just hold them as an instance variable.

Give it a go & let us know how you go. If you get stuck, post an SSCCE of your best attempt.
You might need to hot-link to some small images.

.. ..

Upvotes: 1

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