NEW demo programs using PyGame

DemoPrograms/Demo_PyGame_Integration.py

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+import pygame
+import PySimpleGUI as sg
+import os
+
+"""
+    Demo of integrating PyGame with PySimpleGUI, the tkinter version
+    A similar technique may be possible with WxPython
+    Only works on windows from what I've read
+"""
+# --------------------- PySimpleGUI window layout and creation --------------------
+layout = [[sg.T('Test of PySimpleGUI with PyGame')],
+          [sg.Graph((500,500), (0,0), (500,500), background_color='lightblue', key='_GRAPH_' )],
+          [sg.B('Draw'), sg.Exit()]]
+
+window = sg.Window('PySimpleGUI + PyGame', layout).Finalize()
+graph = window.Element('_GRAPH_')
+
+# -------------- Magic code to integrate PyGame with tkinter -------
+embed = graph.TKCanvas
+os.environ['SDL_WINDOWID'] = str(embed.winfo_id())
+os.environ['SDL_VIDEODRIVER'] = 'windib'
+
+# ----------------------------- PyGame Code -----------------------------
+
+screen = pygame.display.set_mode((500,500))
+screen.fill(pygame.Color(255,255,255))
+
+pygame.display.init()
+pygame.display.update()
+
+while True:
+    event, values = window.Read(timeout=10)
+    if event in (None, 'Exit'):
+        break
+    elif event == 'Draw':
+        pygame.draw.circle(screen, (0, 0, 0), (250, 250), 125)
+    pygame.display.update()
+
+window.Close()

DemoPrograms/Demo_PyGame_Snake_Game.py

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+import pygame
+import PySimpleGUI as sg
+import os
+
+"""
+    Demo - Simple Snake Game using PyGame and PySimpleGUI
+    This demo may not be fully functional in terms of getting the coordinate
+    systems right or other problems due to a lack of understanding of PyGame
+    The purpose of the demo is to show one way of adding a PyGame window into your PySimpleGUI window
+    Note, you must click on the game area in order for PyGame to get keyboard strokes, etc.
+    Tried using set_focus to switch to the PyGame canvas but still needed to click on game area
+"""
+
+# --- Globals ---
+# Colors
+BLACK = (0, 0, 0)
+WHITE = (255, 255, 255)
+
+# Set the width and height of each snake segment
+segment_width = 15
+segment_height = 15
+# Margin between each segment
+segment_margin = 3
+
+# Set initial speed
+x_change = segment_width + segment_margin
+y_change = 0
+
+
+class Segment(pygame.sprite.Sprite):
+    """ Class to represent one segment of the snake. """
+    # -- Methods
+    # Constructor function
+    def __init__(self, x, y):
+        # Call the parent's constructor
+        super().__init__()
+
+        # Set height, width
+        self.image = pygame.Surface([segment_width, segment_height])
+        self.image.fill(WHITE)
+
+        # Make our top-left corner the passed-in location.
+        self.rect = self.image.get_rect()
+        self.rect.x = x
+        self.rect.y = y
+
+# --------------------------- GUI Setup & Create Window -------------------------------
+
+layout = [[sg.T('Snake Game - PySimpleGUI + PyGame')],
+          [sg.Graph((800,600), (0,0), (800,600), background_color='lightblue', key='_GRAPH_')],
+          [sg.Exit()]]
+
+window = sg.Window('Snake Game using PySimpleGUI and PyGame', layout).Finalize()
+
+# ------------------------ Do the magic that integrates PyGame and Graph Element ------------------
+graph = window.Element('_GRAPH_')           # type: sg.Graph
+embed = graph.TKCanvas
+os.environ['SDL_WINDOWID'] = str(embed.winfo_id())
+os.environ['SDL_VIDEODRIVER'] = 'windib'
+
+# ----------------------------- PyGame Code -----------------------------
+# Call this function so the Pygame library can initialize itself
+# pygame.init()
+screen = pygame.display.set_mode((800,600))
+screen.fill(pygame.Color(255,255,255))
+
+pygame.display.init()
+pygame.display.update()
+
+# Set the title of the window
+pygame.display.set_caption('Snake Example')
+
+allspriteslist = pygame.sprite.Group()
+
+# Create an initial snake
+snake_segments = []
+for i in range(15):
+    x = 250 - (segment_width + segment_margin) * i
+    y = 30
+    segment = Segment(x, y)
+    snake_segments.append(segment)
+    allspriteslist.add(segment)
+
+clock = pygame.time.Clock()
+
+while True:
+    event, values = window.Read(timeout=10)
+    if event in (None, 'Exit'):
+        break
+    pygame.display.update()
+
+    for event in pygame.event.get():
+        if event.type == pygame.QUIT:
+            break
+        # Set the speed based on the key pressed
+        # We want the speed to be enough that we move a full
+        # segment, plus the margin.
+        if event.type == pygame.KEYDOWN:
+            if event.key == pygame.K_LEFT:
+                x_change = (segment_width + segment_margin) * -1
+                y_change = 0
+            if event.key == pygame.K_RIGHT:
+                x_change = (segment_width + segment_margin)
+                y_change = 0
+            if event.key == pygame.K_UP:
+                x_change = 0
+                y_change = (segment_height + segment_margin) * -1
+            if event.key == pygame.K_DOWN:
+                x_change = 0
+                y_change = (segment_height + segment_margin)
+
+    # Get rid of last segment of the snake
+    # .pop() command removes last item in list
+    old_segment = snake_segments.pop()
+    allspriteslist.remove(old_segment)
+
+    # Figure out where new segment will be
+    x = snake_segments[0].rect.x + x_change
+    y = snake_segments[0].rect.y + y_change
+    segment = Segment(x, y)
+
+    # Insert new segment into the list
+    snake_segments.insert(0, segment)
+    allspriteslist.add(segment)
+
+    # -- Draw everything
+    # Clear screen
+    screen.fill(BLACK)
+
+    allspriteslist.draw(screen)
+
+    # Flip screen
+    pygame.display.flip()
+
+    # Pause
+    clock.tick(5)
+
+window.Close()