Weapons

Okay, to find the angle of the line between two objects (in 2D here, but should be transferrable to 3D), just use trigonometry. Use the difference between the enemy x and the player x to get the horizontal line, and the difference between the y''s to get the vertical, then just use sin or cos to get the hypotenuse, or use inverse sin or inverse cos to get the angle.

Also in 3D you can use 1 type of vector multiplication (i think it is dot product but not sure) and then you use cos which then you can easily check if its behind the player''s FOV depending on what value it is (because cos always fluctuates predictably).

Ahhh it is late and my post is unorganised, but someone with a better memory can explain the vector stuff to you!

later

wise_guy

You can use the dot product. But make sure you normalize your vectors.

The angle between two vectors you''re saying?

T Angle(const gzVector3T& vec) const { return acos(((*this) * vec) / (this->Magnitude() * vec.Magnitude())); }

Where Magnitude() is:

T Magnitude() const { return sqrt(x * x + y * y + z * z); }

"Paranoia is the belief in a hidden order behind the visible." - Anonymous

Ok, if I take the player''s x pos and minus the objects x pos and then do the same for y pos, how can I use that to see if it''s in the player''s fov?

I''d imagine I''d have to use the sin and cos functions, but I don''t understand how to put it all together. (Especially since I haven''t took trig yet )

Thanks Again


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~Justin Eslinger~
~.."BlackScar"..~
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