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implemented getting arguments and outputting results in collision.py, add brief description to README.md, add copyrights to LICENSE

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Callum David OBrien před 2 roky
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4 změnil soubory, kde provedl 126 přidání a 7 odebrání
  1. 3
    5
      LICENSE
  2. 20
    2
      README.md
  3. 96
    0
      collision.py
  4. 7
    0
      simulation.py

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- 5
LICENSE Zobrazit soubor

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ISC License:

Copyright (c) 2004-2010 by Internet Systems Consortium, Inc. ("ISC")
Copyright (c) 1995-2003 by Internet Software Consortium
Copyright (c) 2018 Callum David O'Brien
Copyright (c) 2018 Chris O'Brien

Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.

THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

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README.md Zobrazit soubor

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# collisions
# Collisions

Collision simulations in python.

Usage:

```collision [cart | pol] [cart | pol] velocity_1 velocity_2```

where

- velocity_1 is the velocity of the first particle, in the form
```"r theta"``` if the input vector type is polar, or in the
form ```"x y"``` if the input vector type is cartesian

- velocity_2 is the velocity of the second particle, in the
form ```"r theta"``` if the input vector type is polar, or in
the form ```"x y"``` if the input vector type is cartesian

The program outputs the velocities of the particles after the
collision, in the form specified by the output vector type.

collision simulations in python

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- 0
collision.py Zobrazit soubor

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import sys
import simulation


def main():

if (len(sys.argv) != 5):
print("Wrong number of arguments")
sys.exit(1)
(inputVectorType, outputVectorType) = getVectorTypes()
initialVelocities = getVelocities(inputVectorType)

velocitiesAfterCollision = simulation.simulateCollision(initialVelocities, inputVectorType, outputVectorType)

outputVelocities(velocitiesAfterCollision, outputVectorType)


def getVectorTypes():

inputVectorTypeString = sys.argv[1]
inputVectorType = getVectorTypeFromString(inputVectorTypeString)

outputVectorTypeString = sys.argv[2]
outputVectorType = getVectorTypeFromString(outputVectorTypeString)

return (inputVectorType, outputVectorType)


def getVectorTypeFromString(vectorTypeString):

if (vectorTypeString == "cart" or vectorTypeString == "pol"):
return vectorTypeString

else:
print("Invalid vector type", vectorTypeString)
sys.exit(1)


def getVelocities(inputVectorType):

velocity1String = sys.argv[3]
velocity1 = getVelocityFromString(velocity1String, inputVectorType)

velocity2String = sys.argv[4]
velocity2 = getVelocityFromString(velocity2String, inputVectorType)

return (velocity1, velocity2)


def getVelocityFromString(velocityString, vectorType):

velocityComponentList = velocityString.split(' ')
if (len(velocityComponentList) != 2):
print("Invalid velocity", velocityString)
sys.exit(1)

if (vectorType == "cart"):
xComponent = float(velocityComponentList[0])
yComponent = float(velocityComponentList[1])
return (xComponent, yComponent)

elif (vectorType == "pol"):
magnitude = float(velocityComponentList[0])
direction = float(velocityComponentList[1])
return (magnitude, direction)


def outputVelocities(velocitiesAfterCollision, vectorType):

(velocity1, velocity2) = velocitiesAfterCollision

print("First particle's velocity:")
printVelocity(velocity1, vectorType)

print()

print("Second particle's velocity:")
printVelocity(velocity2, vectorType)


def printVelocity(velocity, vectorType):

if (vectorType == "cart"):
(xComponent, yComponent) = velocity
print("x:", xComponent)
print("y:", yComponent)

elif (vectorType == "pol"):
(magnitude, direction) = velocity
print("Magnitude:", magnitude)
print("Direction:", direction)


main()


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- 0
simulation.py Zobrazit soubor

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import sys

def simulateCollision(initalVelocities, inputVectorType, outputVectorType):

print("simulateCollision(...) is not implemented")
sys.exit(1)


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