public void UpdatePolygonCollider(ref PolygonParameters p)
{
if (spriteRenderer.sprite == null || spriteRenderer.sprite.texture == null)
{
return;
}
dirty = false;
List <Vector2[]> cached;
if (Application.isPlaying && p.UseCache)
{
CacheKey key = new CacheKey();
key.Texture = p.Texture;
key.Rect = p.Rect;
if (cache.TryGetValue(key, out cached))
{
polygonCollider.pathCount = cached.Count;
for (int i = 0; i < cached.Count; i++)
{
polygonCollider.SetPath(i, cached[i]);
}
return;
}
}
PopulateCollider(polygonCollider, ref p);
}
private void AddEditorCache(ref PolygonParameters p, List <Vector2[]> list)
{
CacheKey key = new CacheKey();
key.Texture = p.Texture;
key.Rect = p.Rect;
CacheEntry e = new CacheEntry();
e.Key = key;
e.Value = new ListWrapper();
e.Value.List = new List <ArrayWrapper>();
foreach (Vector2[] v in list)
{
ArrayWrapper w = new ArrayWrapper();
w.Array = v;
e.Value.List.Add(w);
}
for (int i = 0; i < editorCache.Count; i++)
{
if (editorCache[i].Key.Equals(key))
{
editorCache.RemoveAt(i);
editorCache.Insert(i, e);
return;
}
}
editorCache.Add(e);
}
public override bool Equals(object obj)
{
if (obj is PolygonParameters)
{
PolygonParameters p = (PolygonParameters)obj;
return(Texture == p.Texture && Rect == p.Rect &&
XMultiplier == p.XMultiplier && YMultiplier == p.YMultiplier &&
AlphaTolerance == p.AlphaTolerance && DistanceThreshold == p.DistanceThreshold &&
Decompose == p.Decompose);
}
return(false);
}
/// <summary>
/// Populate the vertices of a collider
/// </summary>
/// <param name="collider">Collider to setup vertices in.</param>
/// <param name="p">Polygon creation parameters</param>
public void PopulateCollider(PolygonCollider2D collider, ref PolygonParameters p)
{
try
{
if (p.Texture.format != TextureFormat.ARGB32 && p.Texture.format != TextureFormat.BGRA32 && p.Texture.format != TextureFormat.RGBA32 &&
p.Texture.format != TextureFormat.RGB24 && p.Texture.format != TextureFormat.Alpha8 && p.Texture.format != TextureFormat.RGBAFloat &&
p.Texture.format != TextureFormat.RGBAHalf && p.Texture.format != TextureFormat.RGB565)
{
Debug.LogWarning("Advanced Polygon Collider works best with a non-compressed texture in ARGB32, BGRA32, RGB24, RGBA4444, RGB565, RGBAFloat or RGBAHalf format");
}
int width = (int)p.Rect.width;
int height = (int)p.Rect.height;
int x = (int)p.Rect.x;
int y = (int)p.Rect.y;
UnityEngine.Color[] pixels = p.Texture.GetPixels(x, y, width, height, 0);
List <Vertices> verts = geometryDetector.DetectVertices(pixels, width, p.AlphaTolerance);
int pathIndex = 0;
List <Vector2[]> list = new List <Vector2[]>();
for (int i = 0; i < verts.Count; i++)
{
ProcessVertices(collider, verts[i], list, ref p, ref pathIndex);
}
#if UNITY_EDITOR
if (Application.isPlaying)
{
#endif
if (p.UseCache)
{
CacheKey key = new CacheKey();
key.Texture = p.Texture;
key.Rect = p.Rect;
cache[key] = list;
}
#if UNITY_EDITOR
}
else if (p.UseCache)
{
AddEditorCache(ref p, list);
}
#endif
Debug.Log("Updated polygon.");
}
catch (Exception ex)
{
Debug.LogError("Error creating collider: " + ex);
}
}
public void RecalculatePolygon()
{
if (spriteRenderer.sprite != null)
{
PolygonParameters p = new PolygonParameters();
p.AlphaTolerance = AlphaTolerance;
p.Decompose = Decompose;
p.DistanceThreshold = DistanceThreshold;
p.Rect = spriteRenderer.sprite.rect;
p.Offset = spriteRenderer.sprite.pivot;
p.Texture = spriteRenderer.sprite.texture;
p.XMultiplier = (spriteRenderer.sprite.rect.width * 0.5f) / spriteRenderer.sprite.pixelsPerUnit;
p.YMultiplier = (spriteRenderer.sprite.rect.height * 0.5f) / spriteRenderer.sprite.pixelsPerUnit;
p.UseCache = UseCache;
UpdatePolygonCollider(ref p);
}
}
private List <Vector2[]> ProcessVertices(PolygonCollider2D collider, Vertices v, List <Vector2[]> list, ref PolygonParameters p, ref int pathIndex)
{
Vector2 offset = p.Offset;
float flipXMultiplier = (spriteRenderer.flipX ? -1.0f : 1.0f);
float flipYMultiplier = (spriteRenderer.flipY ? -1.0f : 1.0f);
if (p.DistanceThreshold > 1)
{
v = SimplifyTools.DouglasPeuckerSimplify(v, p.DistanceThreshold);
}
if (p.Decompose)
{
List <List <Vector2> > points = BayazitDecomposer.ConvexPartition(v);
for (int j = 0; j < points.Count; j++)
{
List <Vector2> v2 = points[j];
for (int i = 0; i < v2.Count; i++)
{
float xValue = (2.0f * (((v2[i].x - offset.x) + 0.5f) / p.Rect.width));
float yValue = (2.0f * (((v2[i].y - offset.y) + 0.5f) / p.Rect.height));
v2[i] = new Vector2(xValue * p.XMultiplier * Scale * flipXMultiplier, yValue * p.YMultiplier * Scale * flipYMultiplier);
}
Vector2[] arr = v2.ToArray();
collider.pathCount = pathIndex + 1;
collider.SetPath(pathIndex++, arr);
list.Add(arr);
}
}
else
{
collider.pathCount = pathIndex + 1;
for (int i = 0; i < v.Count; i++)
{
float xValue = (2.0f * (((v[i].x - offset.x) + 0.5f) / p.Rect.width));
float yValue = (2.0f * (((v[i].y - offset.y) + 0.5f) / p.Rect.height));
v[i] = new Vector2(xValue * p.XMultiplier * Scale * flipXMultiplier, yValue * p.YMultiplier * Scale * flipYMultiplier);
}
Vector2[] arr = v.ToArray();
collider.SetPath(pathIndex++, arr);
list.Add(arr);
}
return(list);
}
