Ejemplo n.º 1
0
        public CubicBezierV2(Vector2 start, Vector2 end, float tangentMultiplier = 0.7f)
        {
            this.start = start;
            this.end   = end;

            Vector2 offset = end - start;
            // ex. A ---> B    ==    Direction.RIGHT
            Direction offsetDirection = DirectionUtil.ConvertVector2(offset);

            // ex. (Direction.RIGHT).Vector2Value()   ==   Vector2(1.0f, 0.0f)
            Vector2 startTangentOffset = Vector2.Scale(offsetDirection.Vector2Value(), Vector2Util.Abs(offset) * tangentMultiplier);
            Vector2 endTangentOffset   = -startTangentOffset;

            this.startTangent = this.start + startTangentOffset;
            this.endTangent   = this.end + endTangentOffset;
        }
Ejemplo n.º 2
0
        public QuadBezierV2(Vector2 start, Vector2 end, Axis?axis = null, float tangentMidpointMultiplier = 0.7f)
        {
            this.start = start;
            this.end   = end;

            Vector2 offset = this.end - this.start;
            // ex. A ---> B    ==    Direction.RIGHT
            Direction offsetDirection = DirectionUtil.ConvertVector2(offset);

            if (axis != null)
            {
                // override offsetDirection with axis if passed in
                // ex. offset = (1.0f, 2.0f) and axis is Axis.HORIZONTAL then axisOffset is (1.0f, 0.0f)
                Vector2 axisOffset = Vector2.Scale(axis.Value.Vector2Value(), offset);
                offsetDirection = DirectionUtil.ConvertVector2(axisOffset);
            }

            // ex. (Direction.RIGHT).Vector2Value()   ==   Vector2(1.0f, 0.0f)
            this.control = this.start + Vector2.Scale(offsetDirection.Vector2Value(), Vector2Util.Abs(offset));

            Vector2 midpoint = (this.start + this.end) / 2.0f;

            this.control = midpoint + (this.control - midpoint) * tangentMidpointMultiplier;
        }