Commit graph

8 commits

Author SHA1 Message Date
Hein-Pieter van Braam
b696beea65 Correct hash behavior for floating point numbers
This fixes HashMap where a key or part of a key is a floating point
number. To fix this the following has been done:

* HashMap now takes an extra template argument Comparator. This class
gets used to compare keys. The default Comperator now works correctly
for common types and floating point numbets.

* Variant implements ::hash_compare() now. This function implements
nan-safe comparison for all types with components that contain floating
point numbers.

* Variant now has a VariantComparator which uses Variant::hash_compare()
safely compare floating point components of variant's types.

* The hash functions for floating point numbers will now normalize NaN
values so that all floating point numbers that are NaN hash to the same
value.

C++ module writers that want to use HashMap internally in their modules
can now also safeguard against this crash by defining their on
Comperator class that safely compares their types.

GDScript users, or writers of modules that don't use HashMap internally
in their modules don't need to do anything.

This fixes #7354 and fixes #6947.
2017-02-16 18:44:29 +01:00
Rémi Verschelde
c7bc44d5ad Welcome in 2017, dear changelog reader!
That year should bring the long-awaited OpenGL ES 3.0 compatible renderer
with state-of-the-art rendering techniques tuned to work as low as middle
end handheld devices - without compromising with the possibilities given
for higher end desktop games of course. Great times ahead for the Godot
community and the gamers that will play our games!
2017-01-01 22:03:33 +01:00
Răzvan Cosmin Rădulescu
9ad0850301 Fixes hash float negative 0 problem
Before this was giving an error:

var a = {Vector2(1, 0): 5, Vector2(-1, 0): 7}
    print(a)
    print(a[Vector2(1, 0)])
    print(a[-Vector2(1, 0)])

This simple commit fixes the issue.
2016-10-12 21:24:07 +02:00
Hubert Jarosz
4a4f247914
remove trailing whitespace 2016-03-09 00:00:52 +01:00
George Marques
5be9ff7b67 Update copyright to 2016 in headers 2016-01-01 11:50:53 -02:00
Juan Linietsky
fdaa2920eb Updated copyright year in all headers 2015-04-18 14:38:54 -03:00
Juan Linietsky
b324ff7ea5 A bit of everything:
-IMA-ADPCM support for samples, this means that sound effects can be compressed and use 4 timess less RAM.
-New 3D import workflow based on Wavefront OBJ. Import single objects as mesh resources instead of full scenes. Many people prefers to work this way. Just like the rest of the imported resources, these are updated in realtime if modified externally.
-Mesh resources now support naming surfaces. This helps reimporting to identify which user-created materials must be kept.
-Several fixes and improvements to SurfaceTool.
-Anti Aliasing added to WorldEnvironment effects (using FXAA)
-2D Physics bodies (RigidBody, KinematicBody, etc), Raycasts, Tilemap, etc support collision layers. This makes easy to group which objects collide against which.
-2D Trigger shapes can now also trigger collision reporting in other 2D bodies (it used to be in Area2D before)
-Viewport render target textures can now be filtered.
-Few fixes in GDscript make it easier to work with static functions and class members.
-Several and many bugfixes.
2014-05-14 01:22:15 -03:00
Juan Linietsky
0b806ee0fc GODOT IS OPEN SOURCE 2014-02-09 22:10:30 -03:00