protected override void OnPopulateMesh(VertexHelper vh)
{
if (!gameObject.activeInHierarchy)
{
if (Debug.isDebugBuild && Application.isEditor)
{
Debug.LogError("On populate mesh is called for disabled UI element");
}
return;
}
var rt = rectTransform;
var piv = rt.pivot;
var rectSize = rt.rect.size;
vh.Clear();
var vertex = UIVertex.simpleVert;
var rctS = rectSize;
float rectDiff = rctS.x - rctS.y;
rctS = new Vector2(Mathf.Max(0, rectDiff / rctS.x), Mathf.Max(0, (-rectDiff) / rctS.y));
var scaleToSided = rctS.x - rctS.y; // If x>0 - positive, else - negative
if (feedPositionData)
{
var pos = Vector2.zero;
switch (_positionDataType)
{
case PositionDataType.AtlasPosition:
var sp = sprite;
if (sp)
{
var tex = sp.texture;
if (tex)
{
var texturePixelSize = new Vector2(tex.width, tex.height);
var atlased = SpriteRect;
pos = atlased.center / texturePixelSize;
vertex.uv3 = atlased.size / texturePixelSize;
}
}
break;
case PositionDataType.ScreenPosition:
pos = RectTransformUtility.WorldToScreenPoint(
IsOverlay ? null : (canvas ? canvas.worldCamera : null), rt.position);
pos.Scale(new Vector2(1f / Screen.width, 1f / Screen.height));
break;
case PositionDataType.FadeOutPosition:
pos = faeOutUvPosition.min;
vertex.uv3 = faeOutUvPosition.max;
break;
}
vertex.uv2 = pos;
}
var corner1 = (Vector2.zero - piv) * rectSize;
var corner2 = (Vector2.one - piv) * rectSize;
vertex.color = color;
vertex.uv0 = new Vector2(0, 0);
vertex.uv1 = new Vector2(scaleToSided, GetCorner(0));
vertex.position = new Vector2(corner1.x, corner1.y);
vh.AddFull(vertex);
vertex.uv0 = new Vector2(0, 1);
vertex.uv1.y = GetCorner(1);
vertex.position = new Vector2(corner1.x, corner2.y);
vh.AddFull(vertex);
vertex.uv0 = new Vector2(1, 1);
vertex.uv1.y = GetCorner(2);
vertex.position = new Vector2(corner2.x, corner2.y);
vh.AddFull(vertex);
vertex.uv0 = new Vector2(1, 0);
vertex.uv1.y = GetCorner(3);
vertex.position = new Vector2(corner2.x, corner1.y);
vh.AddFull(vertex);
if (LinkedCorners)
{
//1 2
//0 3
vh.AddTriangle(0, 1, 2);
vh.AddTriangle(2, 3, 0);
}
else
{
//1 6,9 2
//7 13 14 8
//4 12 15 11
//0 5,10 3
// TODO: Implement atlasing for Unlinked
var cornMid = (corner1 + corner2) * 0.5f;
vertex.uv1.y = GetCorner(0);
vh.AddFull(vertex.Set(0, 0.5f, corner1, cornMid)); //4
vh.AddFull(vertex.Set(0.5f, 0, cornMid, corner1)); //5
vertex.uv1.y = GetCorner(1);
vh.AddFull(vertex.Set(0.5f, 1, cornMid, corner2)); //6
vh.AddFull(vertex.Set(0, 0.5f, corner1, cornMid)); //7
vertex.uv1.y = GetCorner(2);
vh.AddFull(vertex.Set(1, 0.5f, corner2, cornMid)); //8
vh.AddFull(vertex.Set(0.5f, 1, cornMid, corner2)); //9
vertex.uv1.y = GetCorner(3);
vh.AddFull(vertex.Set(0.5f, 0, cornMid, corner1)); //10
vh.AddFull(vertex.Set(1, 0.5f, corner2, cornMid)); //11
vertex.uv1.y = GetCorner(0);
vh.AddFull(vertex.Set(0.5f, 0.5f, cornMid, cornMid)); //12
vertex.uv1.y = GetCorner(1);
vh.AddFull(vertex.Set(0.5f, 0.5f, cornMid, cornMid)); //13
vertex.uv1.y = GetCorner(2);
vh.AddFull(vertex.Set(0.5f, 0.5f, cornMid, cornMid)); //14
vertex.uv1.y = GetCorner(3);
vh.AddFull(vertex.Set(0.5f, 0.5f, cornMid, cornMid)); //15
vh.AddTriangle(0, 4, 5);
vh.AddTriangle(1, 6, 7);
vh.AddTriangle(2, 8, 9);
vh.AddTriangle(3, 10, 11);
vh.AddTriangle(12, 5, 4);
vh.AddTriangle(13, 7, 6);
vh.AddTriangle(14, 9, 8);
vh.AddTriangle(15, 11, 10);
}
}