How To Make An Object Face Another Object

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Dark GDK / How To Make An Object Face Another Object

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kklouzal

Years of Service

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Joined: 15th May 2009

Location: Arizona

Posted: 20th Apr 2011 08:40

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I'm trying to make an object face another object and this code looks like it should work but the objects face a completely different direction.

I have a function that sends the model number of the object im trying to rotate, and the object im trying to rotate it towards:

+ Code Snippet

void Sentinal_Bullet::FaceTarget( int From_Obj, int To_Obj )
{
	float Ax = dbObjectPositionX(From_Obj);
	float Bx = dbObjectPositionX(To_Obj);
	float Ay = dbObjectPositionY(To_Obj);
	float By = dbObjectPositionY(From_Obj);

	float angx = (float)atan2(Bx, Ax);
	angx = angx * 180 / PI;
	if (angx < 0)
	{
		angx = 360 + angx;
	}

	float angy = (float)atan2(By, Ay);
	angy = angy * 180 / PI;
	if (angy < 0)
	{
		angy = 360 + angx;
	}

	dbRotateObject(ObjNumber,angx,angy,0);

}

I'm not sure if I should be using X & Z or X & Y or Y & Z or what, maybe my equation is completely off, i'm not sure but they don't face the object, any suggestions?

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Red Eye

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Joined: 15th Oct 2008

Location:

Posted: 20th Apr 2011 10:53

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+ Code Snippet

dbPointObject(ida,dbObjectPositionX(idb),dbObjectPositionY(idb),dbObjectPositionZ(idb)); // ida will point to idb ;)

Cheers,

RedEye

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kklouzal

Years of Service

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Joined: 15th May 2009

Location: Arizona

Posted: 21st Apr 2011 04:45

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xD thats me trying to overthink things as usual, thanks much!

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Dark GDK / How To Make An Object Face Another Object