[lifo]

I'm trying to figure out how to record the angle at which a player is facing at any given time. Or am I misunderstanding the purpose of GetVectorAngles? I'm using this value outside of the game, so using any other built in functions to do something with the vector is useless to me.

decl Float:vec[3], Float:ang[3];
GetClientEyeAngles(client, vec);
GetVectorAngles(vec, ang);
// ang[1] now contains an angle 0-359 degrees for 'y')

Essentially, I need the direction as a degree and not a vector.
Thanks.

[jheidt]

The issue is, what is your definition of angle? In a 3d world, an angle vector is required because of the various degrees of freedom. If you want the 'top down player view angle', that is their yaw, this ignores any view angle along the up-down, and model rotational axis. The yaw is the Z axis in the hl2 sdk.

new Float:vAngles[3];
new Float:vec[3];

GetClientEyeAngles(client,vAngles);
GetAngleVectors(vAngles,vec,NULL_VECTOR,NULL_ VECTOR);
NormalizeVector(vec,vec);
#define IX_YAW 1
new Float:yaw = vec[IX_YAW];

yaw should now be a value between -359 and 359, where a negative value is a clockwise rotation.

I just wrote this off of the cuff, so mind me if its wrong, but the concept should be correct.

[DiscoBBQ]

HL2 return's the player angles in y, z, x for pitch, yaw, roll; respectivly.
As shown here:
http://developer.valvesoftware.com/wiki/Angle

To return which way he is facing you get the 'z', the second parameter.

//Declare:
decl Float:Yaw, Float:Angles[3];
 
//Initialize:
GetClientAbsAngles(Client, Angles);
Yaw = Angles[1];

[lifo]

Thanks for the responses!

It looks like GetClientAbsAngles() is exactly what I needed. I've only tested it with bots (since I can't login to my server at the moment) and it seems the values are correct. I'm assume I can use the absolute value to obtain the current facing position, and maybe use the negative bit to determine if the player moved clockwise or not.

So simple, I originally overlooked that function since it didn't sound like it did what I needed.