This change adds a new compiler directive 'kage:unit' to Kage. This
takes one of these two values: 'pixel' and 'texel'. The default value
is 'texel'.
With the pixel-unit mode, all the built-in functions treats pixels
instead of texels, and the texCoord argument of Fragment is in pixels.
This simplifies shader programs as programs no longer have the notion
of texels.
With the texel-unit mode, the behavior is the same as the current
behavior.
Closes#1431
This change skips rendering when 1) the screen is not cleared every frame
(`SetScreenClearedEveryFrame(false)`) and 2) Draw doesn't draw anything
onto the screen. The GPU usages decreased on some machines (e.g. GPU usage
was 10% with an empty Ebitengine project and became 2-3 % on a Windows
machine).
Updates #2341
FinalScreenDrawer is an interface for a custom screen rendering. If a
game implements FinalScreenDrawer and is passed to RunGame, its
DrawFinalScreen is called after Draw.
Also this adds `-crt` option to examples/flappy.
Closes#2046
This enables passing the user's Game to internal/ui without wrapping.
This is necessary to check whether the user's Game implements an
optional function or not.
Updates #2046
This change adds NewImageWithOptions, that creates a new image with
the given options.
NewImageWithOptions takes image.Rectangle instead of a width and a
height, then a user can create an image with an arbitrary bounds.
A left-upper position can be a negative number.
NewImageWithOptions can create an unmanged image, that is no longer
on an automatic internal texture atlas. A user can have finer controls
over the image.
This change also adds tests for this function.
Updates #2013
Updates #2017
Updates #2124
