/// <summary>
///
/// </summary>
/// <param name="p_spriteObj"></param>
/// <param name="p_sprite"></param>
/// <param name="p_point1"></param>
/// <param name="p_point2"></param>
/// <returns></returns>
public OneCut.CutResult CutSpriteToMesh(OneCutObject p_spriteObj, Vector2 selfPos, Vector2 p_point1, Vector2 p_point2)
{
List <Triangle> exp_trig = new List <Triangle>(p_spriteObj.triangles);
List <Vector2> intersectionPoints = new List <Vector2>();
Sprite sprite = p_spriteObj.sprite;
Vector2[] vertices = p_spriteObj.meshVert;
VerticesSegmentor verticesSegmentor = new VerticesSegmentor(p_point1, p_point2);
for (int i = 0; i < exp_trig.Count; i++)
{
if (exp_trig[i].pairs.Count == 3)
{
HandleTrigIntersection(intersectionPoints, exp_trig[i], verticesSegmentor, selfPos, p_point1, p_point2);
}
}
List <Triangle> newTrigCol = TrigBuilder.Build(exp_trig);
//always contain 2 trig result
var segmentResult = ResegmentTriangle(newTrigCol, verticesSegmentor, selfPos);
return(new OneCut.CutResult(
GetSprite(segmentResult[0]),
GetSprite(segmentResult[1]),
GetSprite(exp_trig),
intersectionPoints
));
//ResegmentVertices(vertices, verticesSegmentor);
}
/// <summary>
/// Cut object with line given
/// </summary>
/// <param name="p_spriteObj">Object to cut</param>
/// <param name="p_point1">Line header</param>
/// <param name="p_point2">Line footer</param>
/// <param name="p_callback">Callback after calculation</param>
public void Cut(OneCutObject p_spriteObj, Vector2 p_point1, Vector2 p_point2, System.Action <CutResult, bool> p_callback)
{
Vector2 objectPos = p_spriteObj.transform.position;
#if !UNITY_WEBGL
RunCutAyns(delegate { RunCut(p_spriteObj, objectPos, p_point1, p_point2, p_callback); });
#else
RunCut(p_spriteObj, objectPos, p_point1, p_point2, p_callback);
#endif
}
/// <summary>
/// Actual cutting mehtod
/// </summary>
/// <param name="p_spriteObj"></param>
/// <param name="objectPos">Transform.positon couldn;t be obtain inside Threading, so give it individually here</param>
/// <param name="p_point1"></param>
/// <param name="p_point2"></param>
/// <param name="p_callback"></param>
private void RunCut(OneCutObject p_spriteObj, Vector2 objectPos, Vector2 p_point1, Vector2 p_point2, System.Action <CutResult, bool> p_callback)
{
List <Triangle> originalTrig = p_spriteObj.triangles;
CutResult cutResult = mainAlgorithm.CutSpriteToMesh(p_spriteObj, objectPos, p_point1, p_point2);
var newArea = System.Math.Round(cutResult.mainSprite.area + cutResult.subSprite.area, 2);
var oriArea = System.Math.Round(cutResult.originSprite.area, 2);
bool isSuccess = (newArea >= oriArea);
lock (results)
{
results.Enqueue(new TaskResult(cutResult, isSuccess, p_callback));
}
if (debugMode)
{
p_spriteObj.SetDebugVaraible(cutResult.intersectionPoints, cutResult.mainSprite.meshVert, cutResult.subSprite.meshVert);
}
}