Merge pull request #13 from cruisediary/feature-comet-color

Customize comet color

Author: cruisediary

Comets.podspec

@@ -8,7 +8,7 @@
 
 Pod::Spec.new do |s|
   s.name             = 'Comets'
-  s.version          = '0.3.0'
+  s.version          = '0.3.1'
   s.summary          = '☄️Comets: Animating Particles in Swift'
 
 # This description is used to generate tags and improve search results.

Comets/Info.plist

@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>0.3.0</string>
+	<string>0.3.1</string>
 	<key>CFBundleVersion</key>
 	<string>$(CURRENT_PROJECT_VERSION)</string>
 </dict>

Comets/Sources/Comet.swift

@@ -1,12 +1,19 @@
 public struct Comet {
-    public var startPoint: CGPoint
-    public var endPoint: CGPoint
-    public var lineColor: UIColor
+    let startPoint: CGPoint
+    let endPoint: CGPoint
+    let lineColor: UIColor
+    let cometColor: UIColor
 
-    public init(startPoint: CGPoint, endPoint: CGPoint, lineColor: UIColor) {
+    public init(
+        startPoint: CGPoint,
+        endPoint: CGPoint,
+        lineColor: UIColor = UIColor.white.withAlphaComponent(0.2),
+        cometColor: UIColor = UIColor.white
+    ) {
         self.startPoint = startPoint
         self.endPoint = endPoint
         self.lineColor = lineColor
+        self.cometColor = cometColor
     }
 
     public var linePath: UIBezierPath {
@@ -45,9 +52,9 @@ public struct Comet {
         return emitter
     }
 
-    public var contents: Any? {
+    private var contents: Any? {
         let cometLayer = CAGradientLayer()
-        cometLayer.colors = [UIColor.white.withAlphaComponent(0.0).cgColor, UIColor.white.cgColor]
+        cometLayer.colors = [cometColor.withAlphaComponent(0.0).cgColor, cometColor.cgColor]
         cometLayer.cornerRadius = 0.25
         cometLayer.frame = CGRect(x: 0, y: 0, width: 80, height: 0.5)
         cometLayer.locations = [0.0, 1.0]

CometsTests/Info.plist

@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>BNDL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>0.3.0</string>
+	<string>0.3.1</string>
 	<key>CFBundleVersion</key>
 	<string>1</string>
 </dict>

Example/Example/ViewController.swift

@@ -37,25 +37,32 @@ class ViewController: UIViewController {
         let height = view.bounds.height
         let comets = [Comet(startPoint: CGPoint(x: 100, y: 0),
                             endPoint: CGPoint(x: 0, y: 100),
-                            lineColor: UIColor.white.withAlphaComponent(0.2)),
+                            lineColor: UIColor.red.withAlphaComponent(0.2),
+                            cometColor: UIColor.red),
                       Comet(startPoint: CGPoint(x: 0.4 * width, y: 0),
                             endPoint: CGPoint(x: width, y: 0.8 * width),
-                            lineColor: UIColor.white.withAlphaComponent(0.2)),
+                            lineColor: UIColor.red.withAlphaComponent(0.2),
+                            cometColor: UIColor.red),
                       Comet(startPoint: CGPoint(x: 0.8 * width, y: 0),
                             endPoint: CGPoint(x: width, y: 0.2 * width),
-                            lineColor: UIColor.white.withAlphaComponent(0.2)),
+                            lineColor: UIColor.red.withAlphaComponent(0.2),
+                            cometColor: UIColor.red),
                       Comet(startPoint: CGPoint(x: width, y: 0.2 * height),
                             endPoint: CGPoint(x: 0, y: 0.25 * height),
-                            lineColor: UIColor.white.withAlphaComponent(0.2)),
+                            lineColor: UIColor.red.withAlphaComponent(0.2),
+                            cometColor: UIColor.red),
                       Comet(startPoint: CGPoint(x: 0, y: height - 0.8 * width),
                             endPoint: CGPoint(x: 0.6 * width, y: height),
-                            lineColor: UIColor.white.withAlphaComponent(0.2)),
+                            lineColor: UIColor.red.withAlphaComponent(0.2),
+                            cometColor: UIColor.red),
                       Comet(startPoint: CGPoint(x: width - 100, y: height),
                             endPoint: CGPoint(x: width, y: height - 100),
-                            lineColor: UIColor.white.withAlphaComponent(0.2)),
+                            lineColor: UIColor.red.withAlphaComponent(0.2),
+                            cometColor: UIColor.red),
                       Comet(startPoint: CGPoint(x: 0, y: 0.8 * height),
                             endPoint: CGPoint(x: width, y: 0.75 * height),
-                            lineColor: UIColor.white.withAlphaComponent(0.2))]
+                            lineColor: UIColor.red.withAlphaComponent(0.2),
+                            cometColor: UIColor.red)]
 
         // draw track and animate
         for comet in comets {

Example/Podfile.lock

@@ -1,5 +1,5 @@
 PODS:
-  - Comets (0.3.0)
+  - Comets (0.3.1)
   - Gradients (0.3.0)
   - SnapKit (5.0.0)
 
@@ -18,7 +18,7 @@ EXTERNAL SOURCES:
     :path: "../"
 
 SPEC CHECKSUMS:
-  Comets: 80ad7341f67f2743b5f8bdcfaf299956b9840d57
+  Comets: ff75eb4658d612af66073bf9fcf6e8bef274817b
   Gradients: d7e1be639692b86577616ee55ea96f54fb5f1de1
   SnapKit: fd22d10eb9aff484d79a8724eab922c1ddf89bcf
 

README.md

@@ -20,25 +20,32 @@ let width = view.bounds.width
 let height = view.bounds.height
 let comets = [Comet(startPoint: CGPoint(x: 100, y: 0),
                     endPoint: CGPoint(x: 0, y: 100),
-                    lineColor: UIColor.white.withAlphaComponent(0.2)),
+                    lineColor: UIColor.white.withAlphaComponent(0.2),
+                    cometColor: UIColor.white),
               Comet(startPoint: CGPoint(x: 0.4 * width, y: 0),
                     endPoint: CGPoint(x: width, y: 0.8 * width),
-                    lineColor: UIColor.white.withAlphaComponent(0.2)),
+                    lineColor: UIColor.white.withAlphaComponent(0.2),
+                    cometColor: UIColor.white),
               Comet(startPoint: CGPoint(x: 0.8 * width, y: 0),
                     endPoint: CGPoint(x: width, y: 0.2 * width),
-                    lineColor: UIColor.white.withAlphaComponent(0.2)),
+                    lineColor: UIColor.white.withAlphaComponent(0.2),
+                    cometColor: UIColor.white),
               Comet(startPoint: CGPoint(x: width, y: 0.2 * height),
                     endPoint: CGPoint(x: 0, y: 0.25 * height),
-                    lineColor: UIColor.white.withAlphaComponent(0.2)),
+                    lineColor: UIColor.white.withAlphaComponent(0.2),
+                    cometColor: UIColor.white),
               Comet(startPoint: CGPoint(x: 0, y: height - 0.8 * width),
                     endPoint: CGPoint(x: 0.6 * width, y: height),
-                    lineColor: UIColor.white.withAlphaComponent(0.2)),
+                    lineColor: UIColor.white.withAlphaComponent(0.2),
+                    cometColor: UIColor.white),
               Comet(startPoint: CGPoint(x: width - 100, y: height),
                     endPoint: CGPoint(x: width, y: height - 100),
-                    lineColor: UIColor.white.withAlphaComponent(0.2)),
+                    lineColor: UIColor.white.withAlphaComponent(0.2),
+                    cometColor: UIColor.white),
               Comet(startPoint: CGPoint(x: 0, y: 0.8 * height),
                     endPoint: CGPoint(x: width, y: 0.75 * height),
-                    lineColor: UIColor.white.withAlphaComponent(0.2))]
+                    lineColor: UIColor.white.withAlphaComponent(0.2),
+                    cometColor: UIColor.white)]
 
 // draw line track and animate
 for comet in comets {
@@ -62,7 +69,7 @@ pod "Comets"
 
 ### Carthage
 ```
-github "cruisediary/Comets" ~> 0.3.0
+github "cruisediary/Comets" ~> 0.3.1
 ```
 
 ## ❤️ Contribution