desktop_noen 基于qt的python桌宠开发记录

起因很简单，闲得无聊帮群友搓个桌宠整活玩

我会在这里记录开发时间和添加的主要代码

最下面会放上完整代码

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2025/9/20

这个版本目前存在的问题：未实现菜单，工具图标

不会批图，不会动画，所以我打算以组件地形式实现这个桌宠

每个部位作为一个组件，单独控制移动实现动画，所以选择了QGraphicsScene

self.scene = QGraphicsScene(self)
self.setScene(self.scene)

一些其他必要的设置

self.setFixedSize(160, 150)
self.scene.setSceneRect(0, 0, 160, 150)

self.setFrameShape(QtWidgets.QFrame.NoFrame)
self.setFrameShadow(QtWidgets.QFrame.Plain)

# 关闭滚动条
self.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
self.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOff)

# 背景透明
self.setAttribute(Qt.WA_TranslucentBackground, True)
self.setStyleSheet("background: transparent;")

self.setRenderHint(QPainter.Antialiasing)  # 平滑渲染

工具，读取文件，便于后续打包

def resource_path(relative_path):
    """打包后正确找到资源路径"""
    if hasattr(sys, "_MEIPASS"):  # PyInstaller 打包后的临时目录
        return os.path.join(sys._MEIPASS, relative_path)
    return os.path.join(os.path.abspath("."), relative_path)

引入单个部件，进行平滑缩放，并设置层级

right_leg = QPixmap(resource_path("assets/right_leg.png")).scaled(
            23, 32, Qt.KeepAspectRatio, Qt.SmoothTransformation
        )
self.right_leg = self.scene.addPixmap(right_leg)
self.right_leg.setZValue(0)

导入多个部件后设置部件位置，组成人物

self.left_leg.setPos(10, 105)
self.right_leg.setPos(45, 115)
self.skirt.setPos(13, 70)
self.body.setPos(45, 73)
self.left_arm.setPos(65, 97)
self.right_arm.setPos(85, 90)
self.head1.setPos(40, 25)
self.tongue.setPos(100,80)

初始化桌宠位置，保持在任务栏上方

screen = QApplication.primaryScreen().availableGeometry()
self.x = 50
self.y = screen.bottom() - self.height() + 10
self.move(self.x, self.y + 10)

将所有部件放到放到一个groug

self.noen_group = QGraphicsItemGroup()
for part in [self.left_leg, self.right_leg, self.skirt,
             self.body, self.left_arm, self.right_arm, self.head1,
             self.tongue]:
    self.noen_group.addToGroup(part)
    self.scene.addItem(self.noen_group)

设置计时器运行move_noen，实现移动

self.timer = QTimer()
self.timer.timeout.connect(self.move_noen)
self.timer.start(5)

移动主函数，通过三角函数实现部位移动

def move_noen(self):
    t=time.time()
    screen = QApplication.primaryScreen().availableGeometry()
    # 爬
    self.x += self.move_speed * self.direction  # 根据方向移动

    # 转向
    if self.x + self.width() >= screen.right():
        self.direction = -1  # 改变方向
        self.flip_noen()  # 翻转图片
        self.x = screen.right() - self.width()
    elif self.x <= screen.left():
        self.direction = 1
        self.flip_noen()
        self.x = screen.left()

    self.move(self.x, self.y)

    self.head1.setPos(40, 25+math.sin(t*self.action_speed))

    self.body.setPos(45, 73+math.sin(t*self.action_speed))

    self.skirt.setPos(13+math.sin(t*self.action_speed), 70+math.sin(t*self.action_speed))

    self.left_leg.setRotation(15 * math.sin(t * self.action_speed+ math.pi))

    self.right_leg.setRotation(15 * math.sin(t * self.action_speed ))

    self.left_arm.setRotation(12 * math.sin(t * self.action_speed))

    self.right_arm.setRotation(12 * math.sin(t * self.action_speed+math.pi))

    self.tongue.setPos(100,80)
    self.tongue.setRotation(7.5 * math.sin(t * self.action_speed))

实现转向

def flip_noen(self):
    center_x = self.noen_group.boundingRect().center().x()
    transform = QtGui.QTransform()
    transform.translate(center_x, 0)
    if self.direction == -1:  # 向左时翻转
        transform.scale(-1, 1)
    else:
        transform.scale(1, 1)
    transform.translate(-center_x, 0)
    self.noen_group.setTransform(transform)

设置鼠标点击事件，事件快爬和舌头

def mousePressEvent(self, event):
    if event.button() == Qt.LeftButton:
        self.noen_fast_run()

def noen_fast_run(self):
    self.move_speed = 1.4
    self.action_speed = 20
    # 显示舌头
    self.tongue.setVisible(True)
    QTimer.singleShot(3000,self.re_noen_speed)

def re_noen_speed(self):
    self.move_speed = 0.7
    self.action_speed = 10
    # 藏舌头
    self.tongue.setVisible(False)

---

完整代码

from PySide6 import QtGui, QtWidgets
from PySide6.QtWidgets import QApplication, QGraphicsScene, QGraphicsView
from PySide6.QtGui import QPixmap, QPainter, QIcon
from PySide6.QtCore import Qt, QTimer
from PySide6.QtWidgets import QGraphicsItemGroup
import sys
import os
import math
import time

# 打包资源用
def resource_path(relative_path):
    """打包后正确找到资源路径"""
    if hasattr(sys, "_MEIPASS"):  # PyInstaller 打包后的临时目录
        return os.path.join(sys._MEIPASS, relative_path)
    return os.path.join(os.path.abspath("."), relative_path)


class PetView(QGraphicsView):
    def __init__(self):
        self.direction = 1  # 1 表示向右，-1 表示向左
        self.move_speed = 0.7
        self.action_speed=10


        super().__init__()

        self.setWindowIcon(QIcon("assets/head.png"))

        # 创建场景
        self.scene = QGraphicsScene(self)
        self.setScene(self.scene)

        self.setWindowFlags(
            Qt.FramelessWindowHint |  # 无边框
            Qt.WindowStaysOnTopHint  # 置顶
        )
        self.setFixedSize(160, 150)
        self.scene.setSceneRect(0, 0, 160, 150)

        self.setFrameShape(QtWidgets.QFrame.NoFrame)
        self.setFrameShadow(QtWidgets.QFrame.Plain)

        # 关闭滚动条
        self.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
        self.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOff)

        # 背景透明
        self.setAttribute(Qt.WA_TranslucentBackground, True)
        self.setStyleSheet("background: transparent;")

        # 加载部件
        left_leg = QPixmap(resource_path("assets/left_leg.png")).scaled(
            34, 41, Qt.KeepAspectRatio, Qt.SmoothTransformation
        )
        self.left_leg = self.scene.addPixmap(left_leg)
        self.left_leg.setZValue(0)
        self.left_leg_direction=1


        right_leg = QPixmap(resource_path("assets/right_leg.png")).scaled(
            23, 32, Qt.KeepAspectRatio, Qt.SmoothTransformation
        )
        self.right_leg = self.scene.addPixmap(right_leg)
        self.right_leg.setZValue(0)

        skirt = QPixmap(resource_path("assets/skirt.png")).scaled(
            52, 54, Qt.KeepAspectRatio, Qt.SmoothTransformation
        )
        self.skirt = self.scene.addPixmap(skirt)
        self.skirt.setZValue(1)

        body = QPixmap(resource_path("assets/body.png")).scaled(
            60, 50, Qt.KeepAspectRatio, Qt.SmoothTransformation
        )
        self.body = self.scene.addPixmap(body)
        self.body.setZValue(2)

        left_arm = QPixmap(resource_path("assets/left_arm.png")).scaled(
            27, 50, Qt.KeepAspectRatio, Qt.SmoothTransformation
        )
        self.left_arm = self.scene.addPixmap(left_arm)
        self.left_arm.setZValue(3)

        right_arm = QPixmap(resource_path("assets/right_arm.png")).scaled(
            36, 58, Qt.KeepAspectRatio, Qt.SmoothTransformation
        )
        self.right_arm = self.scene.addPixmap(right_arm)
        self.right_arm.setZValue(1)
        self.right_arm_direction=1

        head1 = QPixmap(resource_path("assets/head1.png")).scaled(
            115, 76, Qt.KeepAspectRatio, Qt.SmoothTransformation
        )
        self.head1 = self.scene.addPixmap(head1)
        self.head1.setZValue(6)


        tongue = QPixmap(resource_path("assets/tongue.png")).scaled(
            18, 40, Qt.KeepAspectRatio, Qt.SmoothTransformation
        )
        self.tongue = self.scene.addPixmap(tongue)
        self.tongue.setZValue(5)
        # 初始隐藏
        self.tongue.setVisible(False)
        # 设置旋转中心为上边缘终点，默认为左上角
        rect = self.tongue.boundingRect()
        self.tongue.setTransformOriginPoint(rect.center().x(), rect.top())


        # 位置调整
        self.left_leg.setPos(10, 105)
        self.right_leg.setPos(45, 115)
        self.skirt.setPos(13, 70)
        self.body.setPos(45, 73)
        self.left_arm.setPos(65, 97)
        self.right_arm.setPos(85, 90)
        self.head1.setPos(40, 25)
        self.tongue.setPos(100,80)

        self.setRenderHint(QPainter.Antialiasing)  # 平滑渲染

        # 把noen的身体各部分放到一个组里，实现转身用
        self.noen_group = QGraphicsItemGroup()
        for part in [self.left_leg, self.right_leg, self.skirt,
                     self.body, self.left_arm, self.right_arm, self.head1,
                     self.tongue]:
            self.noen_group.addToGroup(part)
        self.scene.addItem(self.noen_group)

        # 初始化桌宠位置
        screen = QApplication.primaryScreen().availableGeometry()
        self.x = 50
        self.y = screen.bottom() - self.height() + 10
        self.move(self.x, self.y + 10)

        # 计时器，控制移动
        self.timer = QTimer()
        self.timer.timeout.connect(self.move_noen)
        self.timer.start(5)

    def move_noen(self):
        t=time.time()
        screen = QApplication.primaryScreen().availableGeometry()
        # 爬
        self.x += self.move_speed * self.direction  # 根据方向移动

        # 转向
        if self.x + self.width() >= screen.right():
            self.direction = -1  # 改变方向
            self.flip_noen()  # 翻转图片
            self.x = screen.right() - self.width()
        elif self.x <= screen.left():
            self.direction = 1
            self.flip_noen()
            self.x = screen.left()

        self.move(self.x, self.y)

        self.head1.setPos(40, 25+math.sin(t*self.action_speed))

        self.body.setPos(45, 73+math.sin(t*self.action_speed))

        self.skirt.setPos(13+math.sin(t*self.action_speed), 70+math.sin(t*self.action_speed))

        self.left_leg.setRotation(15 * math.sin(t * self.action_speed+ math.pi))

        self.right_leg.setRotation(15 * math.sin(t * self.action_speed ))

        self.left_arm.setRotation(12 * math.sin(t * self.action_speed))

        self.right_arm.setRotation(12 * math.sin(t * self.action_speed+math.pi))

        self.tongue.setPos(100,80)
        self.tongue.setRotation(7.5 * math.sin(t * self.action_speed))


    def flip_noen(self):
        center_x = self.noen_group.boundingRect().center().x()
        transform = QtGui.QTransform()
        transform.translate(center_x, 0)
        if self.direction == -1:  # 向左时翻转
            transform.scale(-1, 1)
        else:
            transform.scale(1, 1)
        transform.translate(-center_x, 0)
        self.noen_group.setTransform(transform)

    # 不知道为什么可以用滚轮小幅度滚动，所以干脆ban了滚轮
    def wheelEvent(self, event):
        pass

    def mousePressEvent(self, event):
        if event.button() == Qt.LeftButton:
            self.noen_fast_run()

    def noen_fast_run(self):
        self.move_speed = 1.4
        self.action_speed = 20
        # 显示舌头
        self.tongue.setVisible(True)
        QTimer.singleShot(3000,self.re_noen_speed)

    def re_noen_speed(self):
        self.move_speed = 0.7
        self.action_speed = 10
        # 藏舌头
        self.tongue.setVisible(False)


if __name__ == "__main__":
    app = QApplication(sys.argv)
    app.setWindowIcon(QIcon(resource_path("assets/head.ico")))
    view = PetView()
    view.show()
    sys.exit(app.exec())