Game Objects 3D math

I've just uploaded a new version of Game Objects. The 3D maths classes (Vector2, Vector3 and Matrix44) are reasonably stable now. I'd like to invite Python coders to play around with them, and suggest any improvements. My intention was to make something that was very […]

There is no documentation at the moment I'm afraid, but here are a few edited highlights.

Vector3 class

>>> from gameobjects.vector3 import *
>>> A = (-5, 2, -6 )
>>> B = (10, 2, 8)
>>> AB = Vector3.from_points(A, B)
>>> print AB
(15, 0, 14)
>>> AB.length
20.518284528683193
>>> AB.length = 1
>>> print AB
(0.731055, 0, 0.682318)
>>> AB *= 2
>>> print AB
(1.462111, 0, 1.364637)
>>> AB += (1, 2, 3)
>>> print AB
(2.462111, 2, 4.364637)

Matrix44 Class

>>> from gameobjects.matrix44 import *
>>> identity = Matrix44()
>>> print identity
[ 1 0 0 0 ]
[ 0 1 0 0 ]
[ 0 0 1 0 ]
[ 0 0 0 1 ]
>>> scale = Matrix44.scale(2.)
>>> print scale
[ 2 0 0 0 ]
[ 0 2 0 0 ]
[ 0 0 2 0 ]
[ 0 0 0 1 ]
>>> scale.transform( (1, 2, 3) )
(2.0, 4.0, 6.0)
>>> from math import radians
>>> rotate = Matrix44.x_rotation(radians(45))
>>> print rotate
[ 1         0         0         0 ]
[ 0         0.707107  0.707107  0 ]
[ 0         -0.707107 0.707107  0 ]
[ 0         0         0         1 ]
>>> p = (5, 10, 0)
>>> rotated_p = rotate.transform(p)
>>> print rotated_p
(5.0, 7.0710678118654755, 7.0710678118654746)
>>> inverse_rotate = rotate.get_inverse()
>>> inverse_rotate.transform(rotated_p)
(5.0, 10.0, 0.0)
>>> rotation.right
Traceback (most recent call last):
  File "<interactive>", line 1, in ?
NameError: name 'rotation' is not defined
>>> rotate.right
(1.0, 0.0, 0.0, 0.0)
>>> rotate.translate
(0.0, 0.0, 0.0, 1.0)
>>> rotate.translate = (10, 2, 5)
>>> print rotate
[ 1         0         0         0 ]
[ 0         0.707107  0.707107  0 ]
[ 0         -0.707107 0.707107  0 ]
[ 10        2         5         1 ]
</interactive>

Ollie —

Hi, wondered if you could help

I am a noob so forgive my ignorance - I need to install the vector2 module for python for a project I am doing (I currently get the ‘No module named gameobjects.vector2’ message when running a script.)
Could you tell me how I download and install this? I am running Python IDLE 2.7

cheers
Ollie

Reply to Ollie

neeraj gupta —

hello sir, i want to collect complete knowledge about python i had learnt basic and want to implement a game .I FOLLOW your book Beginning Game Development with Python and Pygame will you please suggest me what way i have to choose to become a professional game programmer.
your suggestion will be very helpful for me.
thanks

Reply to neeraj gupta

Game Objects 3D math

Game Objects 3D math

Vector3 class

Matrix44 Class

Table of Contents for Pygame Book

Free chapter of Beginning Game Development with Python and Pygame

Master time with PyGame

Game Objects Commandments

Instant Pygame for Python Game Development How-to

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