260 lines
7.8 KiB
Python
260 lines
7.8 KiB
Python
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#!/usr/bin/env python
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""" pygame.examples.cursors
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Click a button and the cursor will change.
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This example will show you:
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*The different types of cursors that exist
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*How to create a cursor
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*How to set a cursor
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*How to make a simple button
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"""
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import pygame as pg
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import os
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# Create a system cursor
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system_cursor1 = pg.SYSTEM_CURSOR_CROSSHAIR
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system_cursor2 = pg.SYSTEM_CURSOR_HAND
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system_cursor3 = pg.SYSTEM_CURSOR_IBEAM
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# Create a color cursor
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surf = pg.Surface((40, 40))
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surf.fill((120, 50, 50))
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color_cursor = pg.cursors.Cursor((20, 20), surf)
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# Create a color cursor with an image surface
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main_dir = os.path.split(os.path.abspath(__file__))[0]
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image_name = os.path.join(main_dir, "data", "cursor.png")
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image = pg.image.load(image_name)
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image_cursor = pg.cursors.Cursor(
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(image.get_width() // 2, image.get_height() // 2), image
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)
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# Create a bitmap cursor from simple strings
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# sized 24x24
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thickarrow_strings = (
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"XX ",
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"XXX ",
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"XXXX ",
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"XX.XX ",
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"XX..XX ",
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"XX...XX ",
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"XX....XX ",
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"XX.....XX ",
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"XX......XX ",
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"XX.......XX ",
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"XX........XX ",
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"XX........XXX ",
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"XX......XXXXX ",
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"XX.XXX..XX ",
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"XXXX XX..XX ",
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"XX XX..XX ",
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" XX..XX ",
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" XX..XX ",
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" XX..XX ",
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" XXXX ",
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" XX ",
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" ",
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" ",
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" ",
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)
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bitmap_cursor1 = pg.cursors.Cursor(
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(24, 24),
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(0, 0),
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*pg.cursors.compile(thickarrow_strings, black="X", white=".", xor="o"),
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)
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# Create a bitmap cursor from premade simple strings
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bitmap_cursor2 = pg.cursors.diamond
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# Calculate if mouse position is inside circle
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def check_circle(mouse_pos_x, mouse_pos_y, center_x, center_y, radius):
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return (mouse_pos_x - center_x) ** 2 + (mouse_pos_y - center_y) ** 2 < radius**2
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def main():
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pg.init()
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pg.display.set_caption("Cursors Example")
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pg.font.init()
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font = pg.font.Font(None, 30)
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font1 = pg.font.Font(None, 24)
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bg = pg.display.set_mode((500, 400))
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bg.fill((183, 201, 226))
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# Initialize circles
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radius1 = 40
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radius2 = 40
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radius3 = 40
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radius4 = 40
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radius5 = 40
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radius6 = 40
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radius7 = 40
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pos_x1 = 82
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pos_x2 = 138
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pos_x3 = 194
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pos_x4 = 250
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pos_x5 = 306
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pos_x6 = 362
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pos_x7 = 418
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pos_y1 = 140
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pos_y2 = 220
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pos_y3 = 140
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pos_y4 = 220
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pos_y5 = 140
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pos_y6 = 220
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pos_y7 = 140
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circle1 = pg.draw.circle(bg, (255, 255, 255), (pos_x1, pos_y1), radius1)
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circle2 = pg.draw.circle(bg, (255, 255, 255), (pos_x2, pos_y2), radius2)
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circle3 = pg.draw.circle(bg, (255, 255, 255), (pos_x3, pos_y3), radius3)
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circle4 = pg.draw.circle(bg, (255, 255, 255), (pos_x4, pos_y4), radius4)
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circle5 = pg.draw.circle(bg, (255, 255, 255), (pos_x5, pos_y5), radius5)
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circle6 = pg.draw.circle(bg, (255, 255, 255), (pos_x6, pos_y6), radius6)
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circle7 = pg.draw.circle(bg, (255, 255, 255), (pos_x7, pos_y7), radius7)
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# Initialize button
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button_text = font1.render("Click here to change cursor", True, (0, 0, 0))
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button = pg.draw.rect(
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bg,
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(180, 180, 180),
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(139, 300, button_text.get_width() + 5, button_text.get_height() + 50),
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)
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button_text_rect = button_text.get_rect(center=button.center)
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bg.blit(button_text, button_text_rect)
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pg.display.update()
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cursors = [
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system_cursor1,
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color_cursor,
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system_cursor2,
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image_cursor,
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system_cursor3,
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bitmap_cursor1,
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bitmap_cursor2,
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]
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index = 0
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pg.mouse.set_cursor(cursors[index])
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pressed = False
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clock = pg.time.Clock()
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while True:
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clock.tick(50)
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mouse_x, mouse_y = pg.mouse.get_pos()
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# Check if mouse is inside a circle to change its color
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if check_circle(mouse_x, mouse_y, circle1.centerx, circle1.centery, radius1):
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circle1 = pg.draw.circle(bg, (255, 0, 0), (pos_x1, pos_y1), radius1)
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else:
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circle1 = pg.draw.circle(bg, (255, 255, 255), (pos_x1, pos_y1), radius1)
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if check_circle(mouse_x, mouse_y, circle2.centerx, circle2.centery, radius2):
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circle2 = pg.draw.circle(bg, (255, 127, 0), (pos_x2, pos_y2), radius2)
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else:
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circle2 = pg.draw.circle(bg, (255, 255, 255), (pos_x2, pos_y2), radius2)
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if check_circle(mouse_x, mouse_y, circle3.centerx, circle3.centery, radius3):
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circle3 = pg.draw.circle(bg, (255, 255, 0), (pos_x3, pos_y3), radius3)
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else:
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circle3 = pg.draw.circle(bg, (255, 255, 255), (pos_x3, pos_y3), radius3)
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if check_circle(mouse_x, mouse_y, circle4.centerx, circle4.centery, radius3):
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circle4 = pg.draw.circle(bg, (0, 255, 0), (pos_x4, pos_y4), radius4)
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else:
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circle4 = pg.draw.circle(bg, (255, 255, 255), (pos_x4, pos_y4), radius4)
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if check_circle(mouse_x, mouse_y, circle5.centerx, circle5.centery, radius4):
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circle5 = pg.draw.circle(bg, (0, 0, 255), (pos_x5, pos_y5), radius5)
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else:
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circle5 = pg.draw.circle(bg, (255, 255, 255), (pos_x5, pos_y5), radius5)
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if check_circle(mouse_x, mouse_y, circle6.centerx, circle6.centery, radius6):
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circle6 = pg.draw.circle(bg, (75, 0, 130), (pos_x6, pos_y6), radius6)
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else:
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circle6 = pg.draw.circle(bg, (255, 255, 255), (pos_x6, pos_y6), radius6)
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if check_circle(mouse_x, mouse_y, circle7.centerx, circle7.centery, radius7):
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circle7 = pg.draw.circle(bg, (148, 0, 211), (pos_x7, pos_y7), radius7)
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else:
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circle7 = pg.draw.circle(bg, (255, 255, 255), (pos_x7, pos_y7), radius7)
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bg.fill((183, 201, 226), (0, 15, bg.get_width(), 50))
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text1 = font.render(
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(f"This is a {pg.mouse.get_cursor().type} cursor"), True, (0, 0, 0)
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)
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text_rect1 = text1.get_rect(center=(bg.get_width() / 2, 40))
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bg.blit(text1, text_rect1)
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button = pg.draw.rect(
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bg,
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(100, 149, 240),
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(139, 300, button_text.get_width() + 5, button_text.get_height() + 50),
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)
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bg.blit(button_text, button_text_rect)
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# Check if button was clicked and change cursor
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if button.collidepoint(mouse_x, mouse_y):
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button = pg.draw.rect(
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bg,
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(60, 100, 255),
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(
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139,
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300,
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button_text.get_width() + 5,
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button_text.get_height() + 50,
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),
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)
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bg.blit(button_text, button_text_rect)
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if pg.mouse.get_pressed()[0] == 1 and pressed == False:
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button = pg.draw.rect(
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bg,
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(0, 0, 139),
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(
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139,
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300,
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button_text.get_width() + 5,
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button_text.get_height() + 50,
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),
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)
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bg.blit(button_text, button_text_rect)
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index += 1
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index %= len(cursors)
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pg.mouse.set_cursor(cursors[index])
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pg.display.update()
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pg.time.delay(40)
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if pg.mouse.get_pressed()[0] == 1:
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pressed = True
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elif pg.mouse.get_pressed()[0] == 0:
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pressed = False
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for event in pg.event.get():
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if event.type == pg.QUIT:
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pg.quit()
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raise SystemExit
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pg.display.update()
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if __name__ == "__main__":
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main()
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