init

main.py

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+#!/usr/bin/python3
+import pygame
+from math import radians,cos,sin
+pygame.init()
+## funktionen
+def get_debug_text():
+    def text(text,line_counter):
+        debug_text = default_font.render(str(text), True, (255,255,255))
+        screen.blit(debug_text,(0,line_counter*default_font.get_height()))
+
+    line_counter = 1
+    globalvars = globals()
+    for a in globalvars:
+        text(f"{str(a)} = {str(globalvars[a])}",line_counter)
+        line_counter += 1
+def get_best_size():
+    if screensize[0] <= screensize[1]:
+        best = screensize[0]
+    else:
+        best = screensize[1]
+    return best
+## klassen
+
+## variablen
+screen = pygame.display.set_mode((300,300),pygame.RESIZABLE)
+pygame.display.set_caption("Lissajous Figures")
+screensize = pygame.display.get_window_size()
+clock = pygame.time.Clock()
+default_font = pygame.font.SysFont("sans", 14)
+
+mitte_pos = screensize[0]//2,screensize[1]//2
+frequ1 = 1
+frequ2 = 10
+
+phasenverschiebung = 90
+
+scale = (get_best_size()-10)//2
+
+preview_pos = 0,0
+show_debug = False
+running = True
+if __name__ == "__main__":
+    while running:
+        ## key managment
+        pressed_keys = pygame.key.get_pressed()
+
+        if pressed_keys[pygame.K_ESCAPE]:
+            exit()
+        if pressed_keys[pygame.K_d] and not preview_pressed_keys[pygame.K_d]:
+           show_debug = not show_debug
+
+        preview_pressed_keys = pressed_keys
+        ## event managment
+        for event in pygame.event.get():
+            if event.type == pygame.QUIT:
+                exit()
+            if event.type == pygame.WINDOWRESIZED:
+                screensize = pygame.display.get_window_size()
+                mitte_pos = screensize[0]//2,screensize[1]//2
+                scale = (get_best_size()-10)//2
+
+        if show_debug:
+            get_debug_text()
+        phasenverschiebung += 0.1
+        if phasenverschiebung >= 360:
+            phasenverschiebung = 0
+        for r in range(360):
+            pos = (sin(radians(frequ1*(r+phasenverschiebung)))*scale)+mitte_pos[0],(cos(radians(frequ2*r))*scale)+mitte_pos[1]
+            pygame.draw.line(screen,(0,255,0),preview_pos,pos,3)
+            preview_pos = pos
+            #pygame.draw.circle(screen,(255,0,0),pos,2)
+        frequ1 = pygame.mouse.get_pos()[0]//5
+        frequ2 = pygame.mouse.get_pos()[1]//5
+        ## bildschirm aktuallisierung
+        pygame.display.flip()
+        clock.tick(60)
+        screen.fill((0,0,0))