Added an example and restructured files (#4)

README.md

@@ -1,7 +1,18 @@
 # Ruby 2D Examples
 
+## Color Dodge Game
+Try to survive the endless wave of colored squares!
+Stay alive as long as you can and your score will go up!
+Touch sufficient colored squares to empty your life bar and you'll have to start again!
+
 ## KeyEvent
 An example using the `on` method to capture `KeyEvents`.
 It displays the keys you type, like stamps on the screen. 
 
-Press **space** to clear, and **backspace** to quit.
+## Toggle Switch
+An example of a simple switch that when toggled
+will change its appearance to reflect its state as well
+as change the background color of the application. 
+
+## Triangle Game
+A simple "Triangle Game" that allows you to move a Roguelike '@' around the window (and off of it).

keyevent-example/README.md

@@ -0,0 +1,11 @@
+# KeyEvent Example
+
+Made by [slime-man](https://github.com/slime-man)
+
+**Ruby2D Version:** 0.8.1
+
+An example using the `on` method to capture `KeyEvents`.
+It displays the keys you type, like stamps on the screen.
+
+## Controls:
+    Press 'space' to clear, and 'backspace' to quit.

keyevent-example.rb → keyevent-example/keyevent-example.rb

@@ -7,7 +7,7 @@
 
 set title: "KeyEvent Example"
 text_size = 20
-font_path = "fonts/Ubuntu.ttf"
+font_path = "../fonts/Ubuntu.ttf"
 
 on :key_down do |k|
   key = k['key']
@@ -18,9 +18,9 @@
     close
   else
     Text.new(
+      key,
       x: rand((get :width) - text_size),
       y: rand((get :height) - text_size),
-      text: key,
       size: text_size,
       font: font_path,
       z: 0,

toggle-switch/README.md

@@ -0,0 +1,15 @@
+# Toggle Switch
+
+Made by [Tobias Wilfert](https://github.com/tobias-wilfert)
+
+**Ruby2D Version:** 0.8.1
+
+Feel free to use and modify as you wish!
+
+## Controls:
+    Mouse to toggle the switch
+
+## How to use:
+    This is an example of a simple switch that when toggled
+    will change its appearance to reflect its state as well
+    as change the background color of the application. 

toggle-switch/toggle-switch.rb

@@ -0,0 +1,66 @@
+require 'ruby2d'
+require_relative 'union'
+
+light_is_on = true
+
+set background: 'aqua'
+set title: "Simple Switch"
+
+middle_bar = Square.new(
+    x:295, y:215,
+    size:50,
+    color: 'green',
+    z:0
+)
+
+left_circle = Circle.new(
+    x: 300, y: 240,
+    radius: 25,
+    sectors: 32,
+    color: 'white',
+    z: 1
+)
+
+right_circle = Circle.new(
+    x: 340, y: 240,
+    radius: 25,
+    sectors: 32,
+    color: 'green',
+    z: 0
+)
+
+# Create a union of all shapes that are a part of the switch
+switch = Union.new([left_circle,middle_bar,right_circle])
+
+on :mouse_down do |event|
+  # If clicked while on top of the switch
+  if switch.contains?(event.x, event.y)
+    if light_is_on # same as 'if light_is_on == true'
+
+      light_is_on = false
+      set background: 'blue'
+
+      left_circle.z = 0
+      right_circle.z = 1
+
+      middle_bar.color = 'silver'
+      left_circle.color = 'silver'
+      right_circle.color = 'white'
+
+    else
+
+      light_is_on = true
+      set background: 'aqua'
+
+      left_circle.z = 1
+      right_circle.z = 0
+
+      middle_bar.color = 'green'
+      left_circle.color = 'white'
+      right_circle.color = 'green'
+
+    end
+  end
+end
+
+show

toggle-switch/union.rb

@@ -0,0 +1,21 @@
+class Union
+  # A class that behaves like the mathematical union
+
+  # @param sets [array] An array of shapes
+  def initialize(sets)
+    @sets = sets
+  end
+
+  # @param x_position [int] An x coordinate on the screen
+  # @param y_position [int] An y coordinate on the screen
+  # @return [bool] True if one of the shapes in sets contains the position
+  def contains?(x_position,y_position)
+    @sets.each do |set|
+      if set.contains?(x_position,y_position)
+        return true
+      end
+    end
+    return false
+  end
+
+end