private void Start()
{
// setup the brush
SetBrushColor(brushColorStateDefault);
SetBrushSize(brushSizeDefault);
oldLine = new OldLine(0f, 0f, 0f, Vector2.zero);
// setup the mouse cursor
cursorObj = new GameObject("Cursor");
cursorObj.AddComponent <SpriteRenderer>();
cursorSprite = cursorObj.GetComponent <SpriteRenderer>();
SetCursorTexture(defaultCursorTexture);
cursorSprite.sortingLayerName = "Cursor";
Vector3 paperScale = GameObject.FindGameObjectWithTag("Paper").GetComponent <Transform>().localScale;
Vector3 currentCursorScale = cursorObj.transform.localScale;
float newScaleX = paperScale.x * currentCursorScale.x;
float newScaleY = paperScale.y * currentCursorScale.y;
cursorObj.transform.localScale = new Vector3(newScaleX, newScaleY, 1f);
cursorObj.SetActive(false);
// clear all the paintings
Clear();
paintLayer = (1 << LayerMask.NameToLayer("Paint"));
}
private void OverwriteOldLine(Vector2 controlPoint, Vector2 endpoint, Vector2 pixelCoordinates)
{
Vector2 p1 = controlPoint;
Vector2 p2 = endpoint;
Vector2 paperPos = pixelCoordinates;
OldLine ol = new OldLine();
// normalize the vector between the control and end points to find direction for the next control
Vector2 endVector = (p2 - p1);
if ((int)endVector.magnitude == 0)
{
ol.direction = Vector2.zero;
}
else
{
ol.direction = endVector.normalized;
}
ol.ctrlTangetLength = endVector.magnitude;
ol.endX = paperPos.x;
ol.endY = paperPos.y;
oldLine = ol;
}