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Bounding box, silly issues help please!

 
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boxrick



Joined: 20 Jan 2009
Posts: 5

PostPosted: Thu Mar 05, 2009 10:51 pm    Post subject: Bounding box, silly issues help please! Reply with quote

I have a game world, with all entities being contained by a bounding box. This is working fine, i am in the process of updating my collision code. However im having issues with deciding if objects are colliding am i doing this right? If not where am i going wrong?

I have object A and object B with x y and z max and minimums of them all.

1) (if object A min X >Object B max X OR object B min X >Object A max X)
X axis is colliding

(if object A min Y>Object B max Y OR object B min Y >Object A max Y)
Y axis is colliding

(if object A min Z >Object B max Z OR object B min Z >Object A max Z )
Z axis is colliding

if X / Y and Z axis are colliding then i have a collision
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Spike



Joined: 05 Nov 2004
Posts: 944
Location: UK

PostPosted: Thu Mar 05, 2009 11:14 pm    Post subject: Reply with quote

don't you mean:
if (a.min_x <= b.max_x && a.max_x >= b.min_x &&
a.min_y <= b.max_y && a.max_y >= b.min_y &&
a.min_x <= b.max_z && a.max_z >= b.min_z)
collide();
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