Ouch my head - 3D Movement

[LordNyson]

Basically I am attempting to make a "space sim" sort of thing just to test, see if I can do it, unfortunately I am running into some minor niggles. I am not very maths based, I am translating my camera behind my ship like so:

Code: Select all

	vector3df hi = swordNode->getPosition();
	aabbox3d<f32> oO = swordNode->getBoundingBox();

	vector3df* r = new vector3df[8];
	oO.getEdges(r);
	hi = r[1];
	hi += (r[5] / 2);
	camera->setPosition(hi);
	camera->setTarget(swordNode->getPosition());

	delete r;

and then I am translating it based on changes in ship rotation with euler stuff..specifically:

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vector2df calcMatrix(vector2df inputs,f32 change)//inputs are X and Y
{
	vector2df outputs = vector2df(0,0);
	change *= ((f32)PI / (f32) 180.0);
	f32 cosRes = cos(change);
	f32 sinRes = sin(change);

	if(change < 0)
	{
		outputs.X = (cosRes * inputs.X) - (sinRes * inputs.Y);
		outputs.Y = (sinRes * inputs.X) + (cosRes * inputs.Y);
	}
	else
	{
		if(change == 0)return outputs;
		outputs.X = (cosRes * inputs.X) + (sinRes * inputs.Y);
		outputs.Y = -(sinRes * inputs.X) + (cosRes * inputs.Y);
	}
	return outputs;
}

Now as I said, I am not very maths based and as such have probably screwed up in some if not all of this. Butttt what I am wondering, in this environment what is the best way to create movement in a 3D environment in peoples opinions? Is it best to use say a physics engine and forces (Which I tried to do and failed miserably with irrOde irrNewt and many many others... Have been stuck for a while now or to actually do it yourself for the movement. or alternatively can someone give me some example code or logical progression of how I might accomplish 3d movement? (and yes I have looked at multiple maths sites, and books in a vain attempt to grasp exactly what is going on)

Just to add. What I am trying to do is take rotation aka D key rotates one degree right, now I want to move in that direction when W key is pressed.

[d3jake]

http://irrlicht.sourceforge.net/phpBB2/ ... php?t=4680 This thread may help you out.