Galaxy Engine Update 1.2.0

This update focuses primarily on collisions, bug fixes and some minor changes. Collisions are still experimental but they have received a significant update.

Changelog:

-Greatly improved collisions performance by using spatial partitioning

-Added particles spawn amount multiplier slider

-Added dark matter spawn amount multiplier slider

-Added  collisions substeps slider

-Added Delta V Color button that shows sudden changes in velocity

-Added particles bounciness slider

-Added threads amount slider for multi-threading

-Divided visuals and physics sliders

-Brush grab tool now only grabs particles inside the brush radius at the moment M is pressed

-Set trails length max value to 1500

-Set trails default value to 48

-Set time scale max value to 15

-Set gravity strength max value to 100

-Set path prediction length min value to 100

-Fixed typo in controls

-Fixed bug in the grab tool which left particles behind when the mouse moved too fast

-Fixed bug in which minimum integer values where not being set correctly

-Fixed delete strays button with collisions

Known Issues:

When gravity and collisions are enabled, clumped particles tend to start spinning increasingly