87 lines
2.6 KiB
Python
87 lines
2.6 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""
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简单颜色测试程序
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"""
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from direct.showbase.ShowBase import ShowBase
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from panda3d.core import LineSegs, Vec3, Vec4
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from direct.task import Task
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class ColorTest(ShowBase):
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def __init__(self):
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ShowBase.__init__(self)
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# 设置背景色
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self.setBackgroundColor(0.2, 0.2, 0.3)
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# 设置相机位置
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self.cam.setPos(0, -10, 0)
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self.cam.lookAt(0, 0, 0)
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# 创建测试线段
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self.createTestLines()
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# 颜色变化任务
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self.taskMgr.add(self.colorChangeTask, "colorChange")
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self.time = 0
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def createTestLines(self):
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"""创建测试线段"""
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# 创建X轴线段
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x_lines = LineSegs()
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x_lines.setThickness(5.0)
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x_lines.moveTo(-3, 0, 0)
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x_lines.drawTo(3, 0, 0)
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self.x_axis = self.render.attachNewNode(x_lines.create())
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self.x_axis.setColor(1, 0, 0, 1) # 红色
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self.x_axis.setLightOff()
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# 创建Y轴线段
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y_lines = LineSegs()
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y_lines.setThickness(5.0)
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y_lines.moveTo(0, -3, 0)
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y_lines.drawTo(0, 3, 0)
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self.y_axis = self.render.attachNewNode(y_lines.create())
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self.y_axis.setColor(0, 1, 0, 1) # 绿色
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self.y_axis.setLightOff()
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# 创建Z轴线段
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z_lines = LineSegs()
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z_lines.setThickness(5.0)
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z_lines.moveTo(0, 0, -3)
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z_lines.drawTo(0, 0, 3)
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self.z_axis = self.render.attachNewNode(z_lines.create())
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self.z_axis.setColor(0, 0, 1, 1) # 蓝色
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self.z_axis.setLightOff()
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print("测试轴创建完成")
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print("X轴颜色:", self.x_axis.getColor())
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print("Y轴颜色:", self.y_axis.getColor())
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print("Z轴颜色:", self.z_axis.getColor())
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def colorChangeTask(self, task):
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"""颜色变化任务"""
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self.time += globalClock.getDt()
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# 每2秒变换一次颜色
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if int(self.time) % 2 == 0:
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# 原色
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self.x_axis.setColor(1, 0, 0, 1)
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self.y_axis.setColor(0, 1, 0, 1)
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self.z_axis.setColor(0, 0, 1, 1)
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else:
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# 白色
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self.x_axis.setColor(1, 1, 1, 1)
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self.y_axis.setColor(1, 1, 1, 1)
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self.z_axis.setColor(1, 1, 1, 1)
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return task.cont
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if __name__ == "__main__":
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app = ColorTest()
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app.run() |