added a new dial

thermopi/main.py

@@ -2,18 +2,21 @@ import pygame
 import os
 import thermopi.surfaces as surfaces
 
+# Global variables
 SCREEN_SIZE = (720, 720)
-DIAL_SIZE = int(min(SCREEN_SIZE[0], SCREEN_SIZE[1]) * 0.9)
 FPS = 60
 PI = 3.14159265
 VALID_SURFACES = [
     'dial'
 ]
-
-script_dir = os.path.dirname(os.path.abspath(__file__))
+SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__))
 
 
-def main(windowed_mode):
+def main(windowed_mode=False):
+    """
+    Main looping method.
+    :param windowed_mode: boolean to start the game in windowed mode
+    """
     pygame.init()
     clock = pygame.time.Clock()
     if windowed_mode:
@@ -21,24 +24,23 @@ def main(windowed_mode):
     else:
         window = pygame.display.set_mode(SCREEN_SIZE, pygame.FULLSCREEN)
 
+    # Starts the program with the surface 'dial' as the default
     surface = getattr(globals()['surfaces'], 'dial').Surface(SCREEN_SIZE)
     running = True
     while running:
         clock.tick(FPS)
-
-        for event in pygame.event.get():
-            if event.type == pygame.QUIT:
-                running = False
-            if event.type == pygame.KEYDOWN:
-                if event.key == pygame.K_ESCAPE:
-                    running = False
+        surface.update()
 
         window.blit(surface, surface.get_rect())
 
         if not surface.running:
+            if surface.quit:
+                break
+            # Switch the surface to a new surface
             next_surface = surface.next_surface
             if next_surface not in VALID_SURFACES:
                 raise Exception('Given surface is not a valid surface!')
             surface = getattr(globals()['surfaces'], next_surface).Surface(SCREEN_SIZE)
 
+        pygame.display.flip()
     pygame.quit()

thermopi/surfaces/dial.py

@@ -1,11 +1,55 @@
+import math
+
 import pygame
 
+DIAL_SCALING = 0.9
+
+
+class Dial(pygame.Surface):
+    def __init__(self, dial_size):
+        super().__init__((dial_size, dial_size), pygame.SRCALPHA)
+        self.rect = self.get_rect()
+        self.dial_size = dial_size
+        self.center = (self.dial_size / 2, self.dial_size / 2)
+
+        self.setting = 1
+
+    def update(self):
+        self.fill((0, 0, 0, 0))
+
+        pygame.draw.circle(self, (0, 255, 0), self.center, self.dial_size / 2, 5)
+        pygame.draw.circle(self, (64, 64, 64), self.center, self.dial_size / 2 * 0.95)
+
+        angle = (1.25 - (1.5 * self.setting)) * math.pi
+        x_1 = (math.cos(angle) * self.dial_size / 2 * 0.8) + (self.dial_size / 2)
+        y_1 = (-1 * math.sin(angle) * self.dial_size / 2 * 0.8) + (self.dial_size / 2)
+        x_2 = (math.cos(angle) * self.dial_size / 2 * 0.99) + (self.dial_size / 2)
+        y_2 = (-1 * math.sin(angle) * self.dial_size / 2 * 0.99) + (self.dial_size / 2)
+        pygame.draw.line(self, (0, 255, 0), (x_1, y_1), (x_2, y_2), 10)
+
+    def set_setting(self, new_setting):
+        self.setting = max(0, min(new_setting, 1))
 
 class Surface(pygame.Surface):
     def __init__(self, window_size):
         super().__init__(window_size, pygame.SRCALPHA)
         self.running = True
+        self.quit = False
         self.next_surface = ''
 
+        dial_size = int(min(window_size[0], window_size[1]) * 0.9)
+        self.dial = Dial(dial_size)
+        self.dial.rect.center = (window_size[0] / 2, window_size[1] / 2)
+
     def update(self):
-        self.fill((0, 0, 0))
+        self.fill((32, 32, 32))
+        for event in pygame.event.get():
+            if event.type == pygame.QUIT:
+                self.running = False
+                self.quit = True
+            if event.type == pygame.KEYDOWN:
+                if event.key == pygame.K_ESCAPE:
+                    self.quit = True
+
+        self.blit(self.dial, self.dial.rect)
+        self.dial.update()