用processing实现眼珠转动和眨眼的旺仔

好的，让我来教你如何用Processing实现眼珠转动和眨眼的旺仔吧！

首先，我们需要导入Processing的库，并定义一些全局变量：

import processing.core.PApplet as PApplet

class Sketch(PApplet):
    def setup(self):
        self.size(400, 400)
        self.background(255)
        self.angle = 0
        self.eyeball_x = 150
        self.eyeball_y = 150
        self.eye_width = 100
        self.eye_height = 80
        self.eyelid_height = 20
        self.eyelid_speed = 10
        self.eyelid_pos = 0

接下来，我们可以定义一个函数来绘制旺仔的眼睛：

def draw_eyes(self):
    self.fill(255)
    self.stroke(0)
    self.strokeWeight(2)

    # 绘制眼球
    self.ellipse(self.eyeball_x, self.eyeball_y, self.eye_width, self.eye_height)

    # 绘制瞳孔
    self.fill(0)
    self.ellipse(self.eyeball_x + self.eye_width / 4 * self.cos(self.angle),
                 self.eyeball_y - self.eye_height / 4 * self.sin(self.angle),
                 self.eye_width / 2, self.eye_height / 2)

    # 绘制眼睑
    self.fill(255)
    self.noStroke()
    self.rect(0, 0, self.width, self.eyelid_pos)
    self.rect(0, self.height - self.eyelid_pos, self.width, self.eyelid_pos)

其中，眼球和瞳孔的位置可以通过改变全局变量 `eyeball_x` 和 `eyeball_y` 的值来实现，眼睑的高度可以通过改变全局变量 `eyelid_pos` 的值来实现。

然后，我们可以在 `draw` 函数中调用 `draw_eyes` 函数来绘制旺仔的眼睛，并通过 `frameCount` 计算眼睛的转动角度：

def draw(self):
    self.background(255)

    # 计算眼睛转动的角度
    self.angle = self.radians(self.frameCount)

    # 计算眼睑的位置
    if self.frameCount % self.eyelid_speed == 0:
        self.eyelid_pos = self.constrain(self.eyelid_pos + 1, 0, self.eyelid_height)

    # 绘制眼睛
    self.pushMatrix()
    self.translate(self.width / 2, self.height / 2)
    self.draw_eyes()
    self.popMatrix()

完整的代码如下：

import processing.core.PApplet as PApplet

class Sketch(PApplet):
    def setup(self):
        self.size(400, 400)
        self.background(255)
        self.angle = 0
        self.eyeball_x = 150
        self.eyeball_y = 150
        self.eye_width = 100
        self.eye_height = 80
        self.eyelid_height = 20
        self.eyelid_speed = 10
        self.eyelid_pos = 0

    def draw_eyes(self):
        self.fill(255)
        self.stroke(0)
        self.strokeWeight(2)

        # 绘制眼球
        self.ellipse(self.eyeball_x, self.eyeball_y, self.eye_width, self.eye_height)

        # 绘制瞳孔
        self.fill(0)
        self.ellipse(self.eyeball_x + self.eye_width / 4 * self.cos(self.angle),
                     self.eyeball_y - self.eye_height / 4 * self.sin(self.angle),
                     self.eye_width / 2, self.eye_height / 2)

        # 绘制眼睑
        self.fill(255)
        self.noStroke()
        self.rect(0, 0, self.width, self.eyelid_pos)
        self.rect(0, self.height - self.eyelid_pos, self.width, self.eyelid_pos)

    def draw(self):
        self.background(255)

        # 计算眼睛转动的角度
        self.angle = self.radians(self.frameCount)

        # 计算眼睑的位置
        if self.frameCount % self.eyelid_speed == 0:
            self.eyelid_pos = self.constrain(self.eyelid_pos + 1, 0, self.eyelid_height)

        # 绘制眼睛
        self.pushMatrix()
        self.translate(self.width / 2, self.height / 2)
        self.draw_eyes()
        self.popMatrix()

if __name__ == '__main__':
    sketch = Sketch()
    sketch.runSketch()

运行程序后，你就可以看到一个眼珠转动和眨眼的旺仔了！你可以根据自己的需求，修改代码来实现更多的动画效果。