/// <summary>
/// The minimum bounds needed to hold the visible sprites.
/// </summary>
/// <returns>The bounds.</returns>
public PixelBounds GetTrimmedSpriteBounds()
{
PixelBounds bounds = new PixelBounds();
bounds.x = int.MaxValue;
bounds.y = int.MaxValue;
int maxX = int.MinValue;
int maxY = int.MinValue;
// grab the list of visible sprites
List <UnitySpriteLayer> spriteLayers = GetSelectedSpriteLayers();
foreach (UnitySpriteLayer spriteLayer in spriteLayers)
{
PixelBounds layerBounds = spriteLayer.layer.bounds;
bounds.x = System.Math.Min(bounds.x, layerBounds.x);
bounds.y = System.Math.Min(bounds.y, layerBounds.y);
maxX = System.Math.Max(maxX, layerBounds.x + layerBounds.width);
maxY = System.Math.Max(maxY, layerBounds.y + layerBounds.height);
}
bounds.width = maxX - bounds.x;
bounds.height = maxY - bounds.y;
return(bounds);
}
/// <summary>
/// Reads some bounds from a dictionary.
/// </summary>
/// <param name="key">The key to look up</param>
/// <param name="dictionary">The dictionary to read from.</param>
/// <returns>Bounds or bust.</returns>
static PixelBounds ReadBoundsFromDictionary(string key, Dictionary <string, object> dictionary)
{
// sanity
if (dictionary == null || key == null)
{
return(null);
}
// missing key
if (!dictionary.ContainsKey(key))
{
return(null);
}
// grab the sub dictionary with the bounds info
PixelBounds bounds = null;
try
{
Dictionary <string, object> subDictionary = dictionary[key] as Dictionary <string, object>;
bounds = new PixelBounds();
bounds.x = ReadIntFromDictionary("left", subDictionary, 0);
bounds.y = ReadIntFromDictionary("top", subDictionary, 0);
bounds.width = ReadIntFromDictionary("right", subDictionary, 0) - bounds.x;
bounds.height = ReadIntFromDictionary("bottom", subDictionary, 0) - bounds.y;
}
catch
{
// shrug
}
return(bounds);
}
/// <summary>
/// Get the pixel position of the sprite.
/// </summary>
/// <returns>A Vector3.</returns>
public Vector3 GetPixelPosition(float coordinatesScale, PixelBounds fromBounds)
{
if (!hasSprite)
{
return(Vector3.zero);
}
// figure out the placement
Vector2 layerCenter = layer.bounds.GetCenter();
float x = (layerCenter.x - fromBounds.x) * coordinatesScale;
float y = (fromBounds.height - layerCenter.y + fromBounds.y) * coordinatesScale;
float z = this.z;
// adjust for pivots (literally a day to figure this out... i fail so hard)
Vector3 spriteCenter = bounds.center;
Vector3 spriteExtents = bounds.extents;
float pivotX = spriteCenter.x / -spriteExtents.x * (layer.bounds.halfWidth * coordinatesScale);
float pivotY = spriteCenter.y / -spriteExtents.y * (layer.bounds.halfHeight * coordinatesScale);
Vector2 pivotOffset = new Vector2(pivotX, pivotY);
x += pivotOffset.x;
y += pivotOffset.y;
return(new Vector3(x, y, z));
}
/// <summary>
/// Add an optional collider to the root.
/// </summary>
/// <param name="root">The root</param>
public void ApplyRootCollider(GameObject root)
{
// sanity
if (layout == null || root == null || layout.rootCollider == ColliderStyle.None)
{
return;
}
// are we a sprite?
bool isSprite = root.GetComponent <SpriteRenderer>() != null;
// grab the size of the collider
PixelBounds bounds = layout.trimToSprites ? layout.trimmedSpriteBounds : layout.document.bounds;
Vector2 colliderSize = new Vector2(bounds.width * layout.coordinatesScale * (1f / layout.pixelsToUnits), bounds.height * layout.coordinatesScale * (1f / layout.pixelsToUnits));
// grab the center of the collider
Vector2 colliderCenter = new Vector2(bounds.width, bounds.height);
switch (layout.anchor)
{
case TextAnchor.LowerCenter:
colliderCenter.x = colliderCenter.x * 0f;
colliderCenter.y = colliderCenter.y * 0.5f;
break;
case TextAnchor.LowerLeft:
colliderCenter.x = colliderCenter.x * 0.5f;
colliderCenter.y = colliderCenter.y * 0.5f;
break;
case TextAnchor.LowerRight:
colliderCenter.x = colliderCenter.x * -0.5f;
colliderCenter.y = colliderCenter.y * 0.5f;
break;
case TextAnchor.MiddleCenter:
colliderCenter.x = colliderCenter.x * 0f;
colliderCenter.y = colliderCenter.y * 0f;
break;
case TextAnchor.MiddleLeft:
colliderCenter.x = colliderCenter.x * 0.5f;
colliderCenter.y = colliderCenter.y * 0f;
break;
case TextAnchor.MiddleRight:
colliderCenter.x = colliderCenter.x * -0.5f;
colliderCenter.y = colliderCenter.y * 0f;
break;
case TextAnchor.UpperCenter:
colliderCenter.x = colliderCenter.x * 0f;
colliderCenter.y = colliderCenter.y * -0.5f;
break;
case TextAnchor.UpperLeft:
colliderCenter.x = colliderCenter.x * 0.5f;
colliderCenter.y = colliderCenter.y * -0.5f;
break;
case TextAnchor.UpperRight:
colliderCenter.x = colliderCenter.x * -0.5f;
colliderCenter.y = colliderCenter.y * -0.5f;
break;
default:
break;
}
colliderCenter = new Vector2(colliderCenter.x * layout.coordinatesScale * (1f / layout.pixelsToUnits), colliderCenter.y * layout.coordinatesScale * (1f / layout.pixelsToUnits));
// check for existing box colliders
BoxCollider existingBoxCollider = root.GetComponent <BoxCollider>();
BoxCollider2D existingBoxCollider2D = root.GetComponent <BoxCollider2D>();
// do we have an existing box collider?
if (existingBoxCollider != null || existingBoxCollider2D != null)
{
// refresh the BoxCollider size
if (existingBoxCollider != null)
{
existingBoxCollider.size = new Vector3(colliderSize.x, colliderSize.y, existingBoxCollider.size.z);
existingBoxCollider.center = new Vector3(colliderCenter.x, colliderCenter.y, existingBoxCollider.center.z);
}
// refresh the BoxCollider2D size
if (existingBoxCollider2D != null)
{
existingBoxCollider2D.size = colliderSize;
#if UNITY_4_3 || UNITY_4_4 || UNITY_4_5 || UNITY_4_6
existingBoxCollider2D.center = colliderCenter;
#else
existingBoxCollider2D.offset = colliderCenter;
#endif
}
// we're done.
return;
}
// check for existing colliders
if (root.GetComponent <Collider2D>() != null || root.GetComponent <Collider>() != null)
{
Debug.LogWarning("Ps2D detected conflicting colliders on the root GameObject. Skipping collider creation.");
return;
}
// check for conflicting rigid bodies
bool conflictRigidBody = root.GetComponent <Rigidbody2D>() != null && layout.rootCollider == ColliderStyle.BoxCollider;
bool conflictRigidBody2D = root.GetComponent <Rigidbody>() != null && layout.rootCollider == ColliderStyle.BoxCollider2D;
// conflict detected
if (conflictRigidBody || conflictRigidBody2D)
{
Debug.LogWarning("Ps2D detected conflicting rigid bodies. Skipping collider creation.");
return;
}
// add the new collider safely
try
{
// 2D collider
if (layout.rootCollider == ColliderStyle.BoxCollider2D)
{
var collider = root.AddComponent <BoxCollider2D>();
// configure this collider unless this is a sprite renderer (in which case we get bounds for free)
if (!isSprite)
{
collider.size = colliderSize;
#if UNITY_4_3 || UNITY_4_4 || UNITY_4_5 || UNITY_4_6
collider.center = colliderCenter;
#else
collider.offset = colliderCenter;
#endif
collider.isTrigger = layout.rootColliderTrigger;
}
}
else
{
// 3D collider
var collider = root.AddComponent <BoxCollider>();
// configure this collider unless this is a sprite renderer (in which case we get bounds for free)
if (!isSprite)
{
collider.size = new Vector3(colliderSize.x, colliderSize.y, 0.2f);
collider.center = colliderCenter;
collider.isTrigger = layout.rootColliderTrigger;
}
}
}
catch
{
Debug.LogWarning("Error setting the collider on Ps2D root object. Perhaps there's a conflicting component?");
}
}
/// <summary>
/// Create a GameObject for this sprite layer, attached to this parent.
/// </summary>
/// <param name="parentTransform">The parent to attach to</param>
/// <param name="spriteLayer">The sprite layer.</param>
public GameObject CreateGameObjectForSpriteLayer(UnitySpriteLayer spriteLayer, Transform parentTransform)
{
// spawn up the game object
GameObject goSprite;
if (layout.replicator != null)
{
goSprite = GameObject.Instantiate(layout.replicator, Vector3.zero, Quaternion.identity) as GameObject;
}
else
{
goSprite = new GameObject();
}
goSprite.name = spriteLayer.name;
// attach the appropriate sprite
// do we have a sprite to set?
if (spriteLayer.hasSprite)
{
#if PS2D_TK2D
if (spriteLayer.sprite != null)
{
spriteLayer.AttachUnitySprite(goSprite);
}
else if (spriteLayer.tk2dSpriteName != null)
{
spriteLayer.AttachTk2dSprite(goSprite, spriteCollectionData);
}
#else
spriteLayer.AttachUnitySprite(goSprite);
#endif
}
// where should this sprite be?
PixelBounds bounds = layout.trimToSprites ? layout.trimmedSpriteBounds : layout.document.bounds;
Vector3 position = spriteLayer.GetPixelPosition(layout.coordinatesScale, bounds);
float x = position.x;
float y = position.y;
float z = position.z;
// layout the sprite based on the anchor
Vector2 offset = new Vector2(bounds.width, bounds.height);
switch (layout.anchor)
{
case TextAnchor.LowerCenter:
offset.x = offset.x * 0.5f;
offset.y = offset.y * 0f;
break;
case TextAnchor.LowerLeft:
offset.x = offset.x * 0f;
offset.y = offset.y * 0f;
break;
case TextAnchor.LowerRight:
offset.x = offset.x * 1f;
offset.y = offset.y * 0f;
break;
case TextAnchor.MiddleCenter:
offset.x = offset.x * 0.5f;
offset.y = offset.y * 0.5f;
break;
case TextAnchor.MiddleLeft:
offset.x = offset.x * 0f;
offset.y = offset.y * 0.5f;
break;
case TextAnchor.MiddleRight:
offset.x = offset.x * 1f;
offset.y = offset.y * 0.5f;
break;
case TextAnchor.UpperCenter:
offset.x = offset.x * 0.5f;
offset.y = offset.y * 1f;
break;
case TextAnchor.UpperLeft:
offset.x = offset.x * 0f;
offset.y = offset.y * 1f;
break;
case TextAnchor.UpperRight:
offset.x = offset.x * 1f;
offset.y = offset.y * 1f;
break;
default:
break;
}
// let's move it!
x -= offset.x * layout.coordinatesScale;
y -= offset.y * layout.coordinatesScale;
// the pixels to units ratio
x *= 1f / layout.pixelsToUnits;
y *= 1f / layout.pixelsToUnits;
// should we create an extra parent for the sprite?
if (layout.addExtraParentToSprite)
{
GameObject goSpriteParent = new GameObject(goSprite.name);
goSpriteParent.transform.position = new Vector3(x, y, z);
goSpriteParent.transform.parent = parentTransform;
goSprite.transform.parent = goSpriteParent.transform;
goSprite.transform.localPosition = Vector3.zero;
}
else
{
goSprite.transform.position = new Vector3(x, y, z);
goSprite.transform.parent = parentTransform;
}
return(goSprite);
}
