ThorPy

"""We show here how to react to mouse wheel events. The button changes its color each time the mouse wheel is used."""

import pygame
import thorpy as tp

pygame.init()

screen = pygame.display.set_mode((1200, 700))
tp.init(screen, tp.theme_human) #bind screen to gui elements and set theme

my_button = tp.Button("Active mouse wheel while hovering me")
my_button.center_on(screen)

button_color = (200,200,200)
my_button.set_bck_color(button_color)

def my_react(mousebuttondown_button): #reaction to the button click
    global button_color
    print("Mouse wheel event")
    if mousebuttondown_button == 4:
        intensity = max(button_color[0]-10, 0)
    else:
        intensity = min(button_color[0]+10, 255)
    button_color = (intensity,)*3
    my_button.set_bck_color(button_color)
    my_button.set_text("Color: " + str(button_color))
my_button.react_buttondown = my_react

def before_gui(): #add here the things to do each frame before blitting gui elements
    screen.fill((250,)*3)
tp.call_before_gui(before_gui) #tells thorpy to call before_gui() before drawing gui.

#For the sake of brevity, the main loop is replaced here by a shorter but blackbox-like method
player = my_button.get_updater().launch()
pygame.quit()
Thorpy
