i have images that have transparent background so when they get shot the bullet hits an invisible part and disappears how would i fix this so that when the bullet hits the actual image i then disappears
GrimCreeper312 wrote ...
2013/4/8
image help
i have to the best that i could with photoshop
You could get the color of the image at the location the head of the bullet was at. If it is not transparent, then apply damage.
how would that work with say a class called boss
Need to know the name of the bullet class and which class the detection code should be in.
CaB() is the bullet & CaLa() is another bullet that needs to work
if the detection code is supposed to be in the object being shot then its Boss()
It might be easiest to do this from the bullet classes (but can be accomplished from the Boss class, also). The idea is to first get the location of the point that the head of the bullet is at. This can be done simply by moving the bullet half of its length, recording the location and moving the bullet back.
Now, we need the location of the top-left corner of the image of the boss.
Finally the difference in the coordinates is the offset of the point in the image to test:
move(getImage().getWidth()/2); int headX = getX(), headY = getY(); move(-getImage().getWidth()/2);
if (!getIntersectingObjects(Boss.class).isEmpty())
{
Boss boss = (Boss)getOneIntersectingObject(Boss.class);
int homeX = boss.getX()-boss.getImage().getWidth()/2;
int homeY = boss.getY()-boss.getImage().getHeight()/2;
// put previous code here // previous code here
int imageX = headX-homeX;
int imageY = headY-homeY;
Color color = boss.getImage().getColorAt(imageX, imageY);
if (color.getAlpha()>48) // code to apply damageso would it look like this and does it go in the checkCollision() method
if (!getIntersectingObjects(Boss.class).isEmpty())
{
Boss boss = (Boss)getOneIntersectingObject(Boss.class);
int homeX = boss.getX()-boss.getImage().getWidth()/2;
int homeY = boss.getY()-boss.getImage().getHeight()/2;
move(getImage().getWidth()/2);
int headX = getX(), headY = getY();
move(-getImage().getWidth()/2);
int imageX = headX-homeX;
int imageY = headY-homeY;
Color color = boss.getImage().getColorAt(imageX, imageY);
if (color.getAlpha()>48) { Boss.life--; }You need to login to post a reply.