Add example about switching displays

Author: Kasparsu

examples/display/main.wren

@@ -0,0 +1,67 @@
+import "graphics" for Canvas, Color, Font
+import "dome" for Log, Window, Platform, Process
+import "input" for Mouse
+class Main {
+  construct new() {
+    Window.display = 0
+    _leftButtonColor = Color.white
+    _rightButtonColor = Color.white
+    _fullScreenButtonColor = Color.white
+    _quitButtonColor = Color.white
+    _buttonPressed = false
+  }
+  init() {
+    
+  }
+  update() {
+    _leftButtonColor = Color.white
+    _rightButtonColor = Color.white
+    _fullscreenButtonColor = Color.white
+    _quitButtonColor = Color.white
+    if(Mouse.x>=10 && Mouse.y>=15 && Mouse.x <= 15 && Mouse.y <= 28) {
+      _leftButtonColor = Color.red
+      if(!_buttonPressed && Mouse.isButtonPressed("left") ) {
+        Window.display = Window.display - 1
+        _buttonPressed = true
+      }
+    
+    }
+
+    if (Mouse.x>=105 && Mouse.y>=15 && Mouse.x <= 110 && Mouse.y <= 28) {
+       _rightButtonColor = Color.red
+      if(!_buttonPressed && Mouse.isButtonPressed("left")) {
+      
+        Window.display = Window.display + 1
+        _buttonPressed = true
+      }
+    }
+
+    if(Mouse.x>=10 && Mouse.y>=30 && Mouse.x <= 100 && Mouse.y <= 38) {
+      _fullscreenButtonColor = Color.red
+      if(!_buttonPressed && Mouse.isButtonPressed("left")) {
+        Window.fullscreen = !Window.fullscreen
+        _buttonPressed = true
+      }
+    }
+    if(Mouse.x>=10 && Mouse.y>=40 && Mouse.x <= 60 && Mouse.y <= 48) {
+      _quitButtonColor = Color.red
+      if(!_buttonPressed && Mouse.isButtonPressed("left")) {
+        Process.exit()
+        _buttonPressed = true
+      }
+    }
+    if(_buttonPressed && !Mouse.isButtonPressed("left")){
+      _buttonPressed = false
+    }
+  }
+  draw(dt) {
+    Canvas.cls()
+    Canvas.print("<", 10, 20, _leftButtonColor)
+    Canvas.print("Display: %(Window.display)", 20, 20, Color.white)
+    Canvas.print(">", 105, 20, _rightButtonColor)
+    Canvas.print("Fullscreen", 20, 30, _fullscreenButtonColor)
+    Canvas.print("Quit", 20, 40, _quitButtonColor)
+  }
+}
+
+var Game = Main.new()