C++ (Cpp) InterpolateKeyframe Examples

Example #1

File: keyframe.cpp Project: RKSimon/extremetuxracer

void CKeyframe::Update (double timestep, CControl *ctrl) {
	if (!loaded) return;
    double frac;
    TVector3 pos;
	CCharShape *shape = Char.GetShape (g_game.char_id);

	if (!active) return;
    keytime += timestep;
	if (keytime >= frames[keyidx]->val[0]) {
		keyidx++;
		keytime = 0;
	}

    if  (keyidx >= numFrames-1 || numFrames < 2) {
		active = false;
        return;
    } 

    if  (fabs (frames[keyidx]->val[0]) < 0.0001) frac = 1.0;
	else frac = (frames[keyidx]->val[0] - keytime) / frames[keyidx]->val[0];

    pos.x = interp (frac, frames[keyidx]->val[1], frames[keyidx+1]->val[1]) + refpos.x;
    pos.z = interp (frac, frames[keyidx]->val[3], frames[keyidx+1]->val[3]) + refpos.z;
    pos.y = interp (frac, frames[keyidx]->val[2], frames[keyidx+1]->val[2]);
    pos.y += Course.FindYCoord (pos.x, pos.z);

	shape->ResetRoot ();
	shape->ResetJoints ();

    Players.GetCtrl (g_game.player_id)->cpos = pos;
    double disp_y = pos.y + TUX_Y_CORR + heightcorr; 
    shape->ResetNode (0);
    shape->TranslateNode (0, MakeVector (pos.x, disp_y, pos.z));
	InterpolateKeyframe (keyidx, frac, shape);
}

Example #2

File: keyframe.cpp Project: ktan2020/extremetuxracer-win32

void CKeyframe::UpdateTest (double timestep, CCharShape *shape) {
	if (!active) return;

    keytime += timestep;
	if (keytime >= frames[keyidx].val[0]) {
		keyidx++;
		keytime = 0;
	}

    if (keyidx >= frames.size()-1 || frames.size() < 2) {
		active = false;
        return;
    }

    double frac;
    TVector3 pos;

    if (fabs (frames[keyidx].val[0]) < 0.0001) frac = 1.0;
	else frac = (frames[keyidx].val[0] - keytime) / frames[keyidx].val[0];

    pos.x = interp (frac, frames[keyidx].val[1], frames[keyidx+1].val[1]) + refpos.x;
    pos.z = interp (frac, frames[keyidx].val[3], frames[keyidx+1].val[3]) + refpos.z;
    pos.y = interp (frac, frames[keyidx].val[2], frames[keyidx+1].val[2]);

	shape->ResetRoot ();
	shape->ResetJoints ();
    shape->TranslateNode (0, TVector3(pos.x, pos.y, pos.z));
	InterpolateKeyframe (keyidx, frac, shape);
}

Example #3

File: keyframe.cpp Project: jfrey-xx/extremetuxracer

void CKeyframe::Update(float timestep) {
	if (!loaded) return;
	if (!active) return;

	keytime += timestep;
	if (keytime >= frames[keyidx].val[0]) {
		keyidx++;
		keytime = 0;
	}

	if (keyidx >= frames.size()-1 || frames.size() < 2) {
		active = false;
		return;
	}

	double frac;
	TVector3d pos;
	CCharShape *shape = g_game.character->shape;

	if (std::fabs(frames[keyidx].val[0]) < 0.0001) frac = 1.0;
	else frac = (frames[keyidx].val[0] - keytime) / frames[keyidx].val[0];

	pos.x = interp(frac, frames[keyidx].val[1], frames[keyidx+1].val[1]) + refpos.x;
	pos.z = interp(frac, frames[keyidx].val[3], frames[keyidx+1].val[3]) + refpos.z;
	pos.y = interp(frac, frames[keyidx].val[2], frames[keyidx+1].val[2]);
	pos.y += Course.FindYCoord(pos.x, pos.z);

	shape->ResetRoot();
	shape->ResetJoints();

	g_game.player->ctrl->cpos = pos;
	double disp_y = pos.y + TUX_Y_CORR + heightcorr;
	shape->ResetNode(0);
	shape->TranslateNode(0, TVector3d(pos.x, disp_y, pos.z));
	InterpolateKeyframe(keyidx, frac, shape);
}