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package NET.worlds.scape;
import java.io.IOException;
public class RollBehavior extends VelocityBehavior {
public float rollFactor;
private long lastTime;
private float bumpFraction;
private static Object classCookie = new Object();
public RollBehavior(Point3Temp vel, float diameter) {
super(vel, 0.0F, Point3Temp.make(0.0F, 0.0F, 1.0F), 0.0F, 0.0F);
this.rollFactor = 360.0F / (3.1416F * diameter);
}
public RollBehavior() {
}
@Override
public boolean handle(FrameEvent e) {
float vel = this.linearVel;
float dT = (float)(e.time - this.lastTime) / 1000.0F;
this.bumpFraction = 1.0F;
super.handle(e);
if (vel != 0.0F && this.lastTime != 0L) {
e.receiver.worldSpin(-this.dir.y, this.dir.x, this.dir.z, this.dir.length() * dT * vel * this.rollFactor * this.bumpFraction);
}
this.lastTime = e.time;
return true;
}
@Override
public boolean handle(BumpEventTemp b) {
this.bumpFraction = b.fraction;
return super.handle(b);
}
@Override
public Object properties(int index, int offset, int mode, Object value) throws NoSuchPropertyException {
Object ret = null;
switch (index - offset) {
case 0:
if (mode == 0) {
ret = FloatPropertyEditor.make(new Property(this, index, "Roll Factor"));
} else if (mode == 1) {
ret = new Float(this.rollFactor);
} else if (mode == 2) {
this.rollFactor = (Float)value;
}
break;
default:
ret = super.properties(index, offset + 1, mode, value);
}
return ret;
}
@Override
public void saveState(Saver s) throws IOException {
s.saveVersion(0, classCookie);
super.saveState(s);
s.saveFloat(this.rollFactor);
s.saveFloat(this.bumpFraction);
}
@Override
public void restoreState(Restorer r) throws IOException, TooNewException {
switch (r.restoreVersion(classCookie)) {
case 0:
super.restoreState(r);
this.rollFactor = r.restoreFloat();
this.bumpFraction = r.restoreFloat();
return;
default:
throw new TooNewException();
}
}
}
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