add additional files to play with

main.kv

@@ -0,0 +1,10 @@
+#: import sm kivy.uix.screenmanager
+<ScreenManagement>:
+    transition: sm.FadeTransition()
+    MainScreen:
+    AboutScreen:
+
+<MainScreen>:
+    
+
+<AboutScreen>:

main.py

@@ -1,16 +1,84 @@
+from random import randrange
+
 from kivy.app import App
 from kivy.clock import Clock
+
+from kivy.core.window import Window
+
+
 from kivy.uix.label import Label
 from kivy.uix.widget import Widget
+
 from kivy.graphics import Rectangle
 
+def collides(rect1, rect2):
+    r1x = rect1[0][0]
+    r1y = rect1[0][1]
+    r2x = rect2[0][0]
+    r2y = rect2[0][1]
+    r1w = rect1[1][0]
+    r1h = rect1[1][1]
+    r2w = rect2[1][0]
+    r2h = rect2[1][1]
+    
+    if (r1x < r2x + r2w and r1x + r1w > r2x and r1y < r2y + r2h and r1y + r1h > r2y):
+        return True
+    else:
+        return False
+
 class GameWidget(Widget):
-    def __init__(self,**kwargs):
+    def __init__(self, **kwargs):
         super().__init__(**kwargs)
+        self._keyboard = Window.request_keyboard(self._on_keyboard_closed, self)
+        self._keyboard.bind(on_key_down=self._on_key_down)
+        self._keyboard.bind(on_key_up=self._on_key_up)
+        
+        self.nearbyobj = []
+        
+        #for obj in range(10):
         
         with self.canvas:
-            Rectangle(source="images/player.png", pos=(0,0), size=(100,100))
+            self.player = Rectangle(source="assets/images/player.png", pos=(0,0), size=(100,100))
+            self.enemy = Rectangle(pos=(300,300), size=(80,80))
+        
+        self.keysPressed = set()
+        
+        Clock.schedule_interval(self.move_step,0)
+        
+    def _on_keyboard_closed(self):
+        self._keyboard.unbind(on_key_down=self._on_key_down)
+        self._keyboard.unbind(on_key_up=self._on_key_up)
+        self._keyboard = None
+        
+    def _on_key_down(self, keyboard, keycode, text, modifiers):
+        self.keysPressed.add(text)
+        
+    def _on_key_up(self,keyboard,keycode):
+        text = keycode[1]
+        if text in self.keysPressed:
+            self.keysPressed.remove(text)
             
+    def move_step(self,dt):
+        currentx = self.player.pos[0]
+        currenty = self.player.pos[1]
+        
+        step_size = 200 * dt
+        
+        if "w" in self.keysPressed:
+            currenty += step_size
+        if "s" in self.keysPressed:
+            currenty -= step_size
+        if "a" in self.keysPressed:
+            currentx -= step_size
+        if "d" in self.keysPressed:
+            currentx += step_size
+
+        self.player.pos = (currentx, currenty)
+        
+        if collides((self.player.pos,self.player.size),(self.enemy.pos,self.size)):
+            print("X")
+        else:
+            print('.')
 
 class GlobalForest(App):
     def build(self):

music.kv

@@ -0,0 +1,11 @@
+#:kivy 1.11.1
+
+<MyFloatLayout>:
+
+    Button:
+        bold:True
+        size_hint:.8,.3
+        text:'Play Music'
+        background_color:0,1,1,1
+        pos_hint: {'right':1, 'y':0}
+        

music.py

@@ -0,0 +1,11 @@
+from kivy.app import App
+from kivy.core.audio import SoundLoader
+from kivy.uix.floatlayout import FloatLayout
+
+class MyFloatLayout(FloatLayout):
+    pass
+
+class MusicWindows(App):
+    def build(self):
+        
+        return MyFloatLayout()