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85 lines
2.6 KiB
85 lines
2.6 KiB
3 years ago
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Metadata-Version: 2.1
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Name: pytweening
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Version: 1.0.4
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Summary: A collection of tweening / easing functions.
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Home-page: https://github.com/asweigart/pytweening
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Author: Al Sweigart
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Author-email: al@inventwithpython.com
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License: MIT
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Keywords: 2D animation tween tweening easing
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Platform: UNKNOWN
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Classifier: Development Status :: 5 - Production/Stable
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Classifier: Environment :: Win32 (MS Windows)
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Classifier: Environment :: X11 Applications
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Classifier: Environment :: MacOS X
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Classifier: Intended Audience :: Developers
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Classifier: Operating System :: OS Independent
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Classifier: License :: OSI Approved :: MIT License
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Classifier: Programming Language :: Python
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Classifier: Programming Language :: Python :: 2
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Classifier: Programming Language :: Python :: 2.7
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Classifier: Programming Language :: Python :: 3
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Classifier: Programming Language :: Python :: 3.4
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Classifier: Programming Language :: Python :: 3.5
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Classifier: Programming Language :: Python :: 3.6
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Classifier: Programming Language :: Python :: 3.7
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Classifier: Programming Language :: Python :: 3.8
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Classifier: Programming Language :: Python :: 3.9
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Description-Content-Type: text/markdown
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License-File: LICENSE.txt
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License-File: AUTHORS.txt
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PyTweening
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==========
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A collection of tweening / easing functions implemented in Python.
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Example Usage
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=============
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All tweening / easing functions are passed an argument of a float from 0.0 (for the beginning) to 1.0 (for the end) of the tween:
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>>> pytweening.linear(0.5)
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0.5
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>>> pytweening.linear(0.75)
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0.75
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>>> pytweening.linear(1.0)
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1.0
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>>> pytweening.easeInQuad(0.5)
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0.25
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>>> pytweening.easeInQuad(0.75)
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0.5625
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>>> pytweening.easeInQuad(1.0)
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1.0
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>>> pytweening.easeInOutSine(0.5)
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0.49999999999999994
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>>> pytweening.easeInOutSine(0.75)
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0.8535533905932737
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>>> pytweening.easeInOutSine(1.0)
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1.0
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The getLine() function also provides a Bresenham line algorithm implementation:
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>>> pytweening.getLine(0, 0, 5, 10)
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[(0, 0), (0, 1), (1, 2), (1, 3), (2, 4), (2, 5), (3, 6), (3, 7), (4, 8), (4, 9), (5, 10)]
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The getLinePoint() function finds a point on the provided line (even if it extends before or past the start or end points):
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>>> getLinePoint(0, 0, 5, 10, 0.0)
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(0.0, 0.0)
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>>> getLinePoint(0, 0, 5, 10, 0.25)
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(1.25, 2.5)
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>>> getLinePoint(0, 0, 5, 10, 0.5)
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(2.5, 5.0)
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>>> getLinePoint(0, 0, 5, 10, 0.75)
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(3.75, 7.5)
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>>> getLinePoint(0, 0, 5, 10, 1.0)
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(5.0, 10.0)
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Support
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-------
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If you find this project helpful and would like to support its development, [consider donating to its creator on Patreon](https://www.patreon.com/AlSweigart).
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