How can my entities find a euler angle from the surface below their normal? Like, to determine whether they're moving uphill or downhill, or falling towards a slope. I'm using A5 standard, but there must be a simple way...

Quote:

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___NORMAL___
Vectors, often used to indicate a surface normal by several instructions. A surface normal is a vector of length 1 perpendicular to that surface
___Type:___
vector
___Remarks:___
Will only remain valid until the next wait instruction.
___Modified by:___
trace - normal = surface normal
___Example:___
function test
{
vec_set(temp, my.x);
temp.z -= 1000 // 100 Quants down
trace_mode = ingnore_my;
result = trace(my.x, temp);
vec_set(my.x, target);
vec_to_angle(my.pan, normale); // put on surface
}
___See Also:___
Entity, my, trace, target, bounce

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From the A5 manual...

This is perfect... i though it must be some trace-set vector, but i didn't know how to access it. I swear i've never seen that manual page...

thanks a lot