Added ability to apply transforms to arbitrary points

Added the following functionality:
* RenderableEntity:
  * public func applyTransforms(toPoint:Point, transforms:[Transform]?
    = nil) -> Point
  * public func applyTransforms(toPoints:[Point],
    transforms:[Transform]? = nil) -> [Point]

Author: DBenYaakov

.dir-locals.el

@@ -2,4 +2,4 @@
 ;;; For more information see (info "(emacs) Directory Variables")
 
 ((swift-mode
-  (flycheck-swift-include-search-paths  "/usr/local/lib/merlin/Igis-1.1.5/Igis/.build/debug")))
+  (flycheck-swift-include-search-paths  "/usr/local/lib/merlin/Igis-1.2.0/Igis/.build/debug")))

README.md

@@ -1,6 +1,6 @@
 # Scenes
 _Scenes_ provides a Swift object library with support for **Scene**s, **Layer**s, and **RenderableEntity**s along with an event **Dispatcher**.  _Scenes_ runs on top of IGIS.
-
+ 
 ## Usage
 
 ### Library
@@ -146,8 +146,15 @@ In order to support the EntityMouse* events, the following methods are available
 **RenderableEntity**s support alpha and transforms.  The following methods may be invoked:
 ```swift
     // This function should only be invoked during init(), setup(), or calculate()
-    public func setTransforms(transforms:[Transform]?) 
+    public func setTransforms(transforms:[Transform]?)
+
+    // To convert an arbitrary point (for example, globalLocation) to its actual location
+    // using either specific or current transforms:
+    public func applyTransforms(toPoint:Point, transforms:[Transform]? = nil) -> Point
 
+    // To convert a series of arbitrary points to their actual location
+    // using either specific or current transforms:
+    public func applyTransforms(toPoints:[Point], transforms:[Transform]? = nil) -> [Point]
 
     // This function should only be invoked during init(), setup(), or calculate()
     public func setAlpha(alpha:Alpha?)

Sources/Scenes/RenderableEntity.swift

@@ -141,6 +141,30 @@ open class RenderableEntity {
         self.alpha = alpha
     }
 
+    // Applies specified or current transforms to the specified point
+    // If no transforms are current, returns the original point
+    public func applyTransforms(toPoint:Point, transforms:[Transform]? = nil) -> Point {
+        if let transforms = transforms ?? self.transforms {
+            let matrix = Transform.multiply(transforms:transforms)
+            let transformedPoint = matrix.apply(toPoint:toPoint)
+            return transformedPoint
+        } else {
+            return toPoint
+        }
+    }
+
+    // Applies specified or current transforms to the specified points
+    // If no transforms are current, returns the original points
+    public func applyTransforms(toPoints:[Point], transforms:[Transform]? = nil) -> [Point] {
+        if let transforms = transforms ?? self.transforms {
+            let matrix = Transform.multiply(transforms:transforms)
+            let transformedPoints = matrix.apply(toPoints:toPoints)
+            return transformedPoints
+        } else {
+            return toPoints
+        }
+    }
+
     public var layer : Layer {
         guard let owningLayer = owningLayer else {
             fatalError("owningLayer required")

dylib.manifest

@@ -1 +1,2 @@
-Igis		1.1.5
+Igis		1.2.0
+