public void ReplaceAlphaWith(D2D_Pixels newPixels)
{
DeserializeAlphaTex();
#if UNITY_EDITOR
if (alphaTex != null)
{
D2D_Helper.Record(alphaTex, "Modify Alpha Tex");
}
#endif
if (newPixels != null)
{
// Remake texture?
if (alphaTex == null || alphaTex.width != newPixels.Width || alphaTex.height != newPixels.Height)
{
DestroyAlphaTex();
alphaTex = newPixels.Apply(TextureFormat.Alpha8);
alphaScaleX = D2D_Helper.Reciprocal(alphaTex.width - 1);
alphaScaleY = D2D_Helper.Reciprocal(alphaTex.height - 1);
alphaTex.wrapMode = TextureWrapMode.Clamp;
}
// Copy settings over?
else
{
alphaTex.SetPixels32(newPixels.Pixels);
alphaTex.Apply();
}
UpdateRect(0, alphaTex.width, 0, alphaTex.height);
}
else
{
DestroyAlphaTex();
UpdateRect(0, 0, 0, 0);
}
cachedSolidPixelCount = 0;
alphaTexData = null;
alphaTexWidth = 0;
alphaTexHeight = 0;
Dirty = true;
NotifyChanges();
#if UNITY_EDITOR
D2D_Helper.SetDirty(this);
#endif
}
public static Vector3 GetBarycentric(Vector2 a, Vector2 b, Vector2 c, Vector2 p)
{
var barycentric = Vector3.zero;
var v0 = b - a;
var v1 = c - a;
var v2 = p - a;
var d00 = Vector2.Dot(v0, v0);
var d01 = Vector2.Dot(v0, v1);
var d11 = Vector2.Dot(v1, v1);
var d20 = Vector2.Dot(v2, v0);
var d21 = Vector2.Dot(v2, v1);
var denom = D2D_Helper.Reciprocal(d00 * d11 - d01 * d01);
barycentric.y = (d11 * d20 - d01 * d21) * denom;
barycentric.z = (d00 * d21 - d01 * d20) * denom;
barycentric.x = 1.0f - barycentric.y - barycentric.z;
return(barycentric);
}
// Doesn't reallocate memory if the new alpha data is the same size
private void ReplaceAlphaData(byte[] newAlphaData, int newAlphaWidth, int newAlphaHeight)
{
var newAlphaTotal = newAlphaWidth * newAlphaHeight;
if (alphaData == null || alphaData.Length != newAlphaTotal)
{
alphaData = new byte[newAlphaTotal];
}
for (var i = 0; i < newAlphaTotal; i++)
{
alphaData[i] = newAlphaData[i];
}
alphaWidth = newAlphaWidth;
alphaHeight = newAlphaHeight;
alphaScaleX = D2D_Helper.Reciprocal(originalWidth);
alphaScaleY = D2D_Helper.Reciprocal(originalHeight);
}
private void UpdateColliders()
{
if (ColliderType != D2D_SpriteColliderType.None)
{
var cellTransform = default(Transform);
switch (ColliderType)
{
case D2D_SpriteColliderType.Edge:
{
DestroyAutoPolygonCollider();
DestroyPolygonColliders();
if (edgeColliders == null)
{
edgeColliders = D2D_Helper.CreateGameObject("Edge Colliders", transform).AddComponent<D2D_EdgeColliders>();
edgeColliders.RebuildAllColliders(AlphaTex);
}
cellTransform = edgeColliders.transform;
}
break;
case D2D_SpriteColliderType.Polygon:
{
DestroyAutoPolygonCollider();
DestroyEdgeColliders();
if (polygonColliders == null)
{
polygonColliders = D2D_Helper.CreateGameObject("Polygon Colliders", transform).AddComponent<D2D_PolygonColliders>();
polygonColliders.RebuildAllColliders(AlphaTex);
}
cellTransform = polygonColliders.transform;
}
break;
case D2D_SpriteColliderType.AutoPolygon:
{
DestroyPolygonColliders();
DestroyEdgeColliders();
if (autoPolygonCollider == null)
{
autoPolygonCollider = D2D_Helper.CreateGameObject("Auto Polygon Collider", transform).AddComponent<D2D_AutoPolygonCollider>();
autoPolygonCollider.RebuildCollider(AlphaTex);
}
cellTransform = autoPolygonCollider.transform;
}
break;
}
if (cellTransform != null)
{
var cellScale = Vector3.one;
var cellOffset = Vector3.zero;
if (sprite != null && MainTex != null && AlphaTex != null)
{
cellScale = D2D_Helper.Reciprocal(PixelsToUnits) * D2D_Helper.Divide(MainTex.width, MainTex.height, AlphaTex.width, AlphaTex.height);
cellOffset = sprite.bounds.min; cellOffset.z = 0.0f;
}
if (cellTransform.localPosition != cellOffset)
{
cellTransform.localPosition = cellOffset;
}
if (cellTransform.localScale != cellScale)
{
cellTransform.localScale = cellScale;
}
}
}
else
{
DestroyAutoPolygonCollider();
DestroyPolygonColliders();
DestroyEdgeColliders();
}
}