@Override
public PathPoint evaluate(float t, PathPoint startValue, PathPoint endValue) {
float x, y;
if (endValue.mOperation == PathPoint.CURVE) {
float oneMinusT = 1 - t;
x =
oneMinusT * oneMinusT * oneMinusT * startValue.mX
+ 3 * oneMinusT * oneMinusT * t * endValue.mControl0X
+ 3 * oneMinusT * t * t * endValue.mControl1X
+ t * t * t * endValue.mX;
y =
oneMinusT * oneMinusT * oneMinusT * startValue.mY
+ 3 * oneMinusT * oneMinusT * t * endValue.mControl0Y
+ 3 * oneMinusT * t * t * endValue.mControl1Y
+ t * t * t * endValue.mY;
} else if (endValue.mOperation == PathPoint.LINE) {
x = startValue.mX + t * (endValue.mX - startValue.mX);
y = startValue.mY + t * (endValue.mY - startValue.mY);
} else {
x = endValue.mX;
y = endValue.mY;
}
return PathPoint.moveTo(x, y);
}
