resolve several minor TODOs default tip

remove outdated TODO comments

add more vector arithmetic functions

improve snap-to-grid-movement

snap the movement to the grid

use new point-of-origin for 2d primitives

remove global active font and color (also fixes #693)

add a tiled game field

fix wrong allocation sizes when allocating the shader info structs

fix that empty nodes fail to recalculate world transforms in the scene graph

(0) -100 -10 tip

mercurial