Cucumber: World Scaling R/W + VideoTexture Constants

cucumber merge: world scaling + video texture constants
revisions: 38166,38167,38177,38179,38180,38187,38242

#38242 by kupoman
Adding the constants SOURCE_ERROR, SOURCE_EMPTY, SOURCE_READY, SOURCE_PLAYING, SOURCE_STOPPED to the video texture module. Updates to the documentation will follow after a merge with trunk

#38187 by kupoman
Updates to the documentation to reflect that worldScale is now writable, and added localTransform and worldTransform to KX_GameObject.

#38180 by kupoman
The Transform attribute of KX_GameObject was based on world space data. I converted that one to worldTransform, and added a localTransform for local space transform information.

#38179 by kupoman
Fixed the transform attribute of KX_GameObject's set method to properly deal with negative scaling.

#38177 by kupoman
Updated the transform property on KX_GameObject so that it is now read/write, and added the corresponding set method. Also simplified the get method by calling GetOpenGLMatrix instead of making the matrix myself.

#38167 by kupoman
Adding a read only transform attribute to KX_GameObject that returns a 4x4 matrix representing the object's transformations.

#38166 by kupoman
Adding a worldScale attribute to KX_GameObject. This attribute scales the object independently of its parent's scale.

edit: comitted

[ideasman42, 2012-01-16 08:29:35]

+1, to commit once BLI math functions are used (should make this code a lot more
clear).

http://codereview.appspot.com/5530080/diff/1/source/gameengine/Ketsji/KX_Game...
File source/gameengine/Ketsji/KX_GameObject.cpp (right):

http://codereview.appspot.com/5530080/diff/1/source/gameengine/Ketsji/KX_Game...
source/gameengine/Ketsji/KX_GameObject.cpp:2202: KX_GameObject* self =
static_cast<KX_GameObject*>(self_v);
suggest use BLI math functions here, see mathutils_Matrix.c's decompose
function:

--- these especially
	mat3_to_quat(quat, rot);
	mat4_to_loc_rot_size(loc, rot, size, (float (*)[4])self->matrix);

http://codereview.appspot.com/5530080/diff/1/source/gameengine/Ketsji/KX_Game...
source/gameengine/Ketsji/KX_GameObject.cpp:2245: KX_GameObject* self =
static_cast<KX_GameObject*>(self_v);
this func could also make use of BLI math

[dfelinto, 2012-01-16 08:35:25]

small note. Also it's important to remember that the rst changes are missing
here (for video texture module).

http://codereview.appspot.com/5530080/diff/1/source/gameengine/Ketsji/KX_Game...
File source/gameengine/Ketsji/KX_GameObject.cpp (right):

http://codereview.appspot.com/5530080/diff/1/source/gameengine/Ketsji/KX_Game...
source/gameengine/Ketsji/KX_GameObject.cpp:2203: MT_Matrix4x4 transform;
perhaps we could have a NodeSetLocalTransform? to use BLI_math is still a must,
but I find strange that the math has to be done in the python part of the code.
(unless (1) BLI_math makes things clean enough and (2) this is one of the few
parts of the BGE that needs to set the whole transformation matrix).

[ideasman42, 2012-01-16 09:10:27]

http://codereview.appspot.com/5530080/diff/1/source/gameengine/Ketsji/KX_Game...
File source/gameengine/Ketsji/KX_GameObject.cpp (right):

http://codereview.appspot.com/5530080/diff/1/source/gameengine/Ketsji/KX_Game...
source/gameengine/Ketsji/KX_GameObject.cpp:2203: MT_Matrix4x4 transform;
agree this could be moved into a new method:
self->NodeSetLocalMatrix

... which can use BLI_math too.