Moved quantization out of the draw code. The laser is now quantized once
per frame, and the segment data is used for both collisions and
rendering. Player motion is now accounted for as well, preventing
phasing through thin lasers. The overall result is more precise *and*
faster collision detection.
Fixed a false negative in lineseg_circle_intersect that could occur when
the closest point lies outside the line segment, yet the segment is
still within the circle's radius. Optimized to avoid square roots. Added
functions for querying the closest point on a line segment without
distance restrictions.
This also introduces `float32`, `float64`, and `real` typedefs to be
used in place of `float` and `double` later. `real` is for game code and
other places where we don't particularly care about the precision and
format of the underlying type, and is currently defined to `double`.
`float32` and `float64` should replace `float` and `double` respectively
also add a parameter to rect_rect_intersect{,ion} to specify whether to
register shader corners/vertices as intersections. previously these
would be unconditionally discarded.
* wip font rendering stuff; hashtable monstrosity is temporary
* various text rendering fixes/improvements
* HashTables™ 3.0
* Add some comments to aid navigating the hashtable macro maze
* overhaul text rendering API; add default and example shaders
* text: implement text_render for spellcard effect; misc fixes
* README: update dependencies
Bye SDL_ttf, hello freetype2.
* text_draw: fix resolution/scale-dependent bugs
* make text_draw fallback to the current shader, fix hud and stagetext
* repair the bgm loading
* fix spell practice mode
* fix walloftext
forgot one site of text_draw earlier
* fix wrapped text rendering
* fix and simplify the hud text shader
* dynamic glyph cache
* implement font size change on window resize/quality setting change/etc.
* rename text shaders for consistency
* preloads for fonts and text shaders
* make the stagetext shader look somewhat better
* text_render: attempt to normalize height
* small improvement for stagetext