Overhaul the Platformer Physics System #20

kirsle · 2020-04-05T04:01:21Z

kirsle commented

2020-04-05 04:01:21 +00:00

Player character now experiences acceleration and friction when
walking around the map!
Actor position and movement had to be converted from int's
(render.Point) to float64's to support fine-grained acceleration
steps.
Added "physics" package and physics.Vector to be a float64 counterpart
for render.Point. Vector is used for uix.Actor.Position() for the sake
of movement math. Vector is flattened back to a render.Point for
collision purposes, since the levels and hitboxes are pixel-bound.
Refactor the uix.Actor to no longer extend the doodads.Drawing (so it
can have a Position that's a Vector instead of a Point). This broke
some code that expected .Doodad to directly reference the
Drawing.Doodad: now you had to refer to it as a.Drawing.Doodad which
was ugly. Added convenience method .Doodad() for a shortcut.
Moved functions like GetBoundingRect() from doodads package to
collision, where it uses its own slimmer Actor interface for just the
relevant methods it needs.

* Player character now experiences acceleration and friction when walking around the map! * Actor position and movement had to be converted from int's (render.Point) to float64's to support fine-grained acceleration steps. * Added "physics" package and physics.Vector to be a float64 counterpart for render.Point. Vector is used for uix.Actor.Position() for the sake of movement math. Vector is flattened back to a render.Point for collision purposes, since the levels and hitboxes are pixel-bound. * Refactor the uix.Actor to no longer extend the doodads.Drawing (so it can have a Position that's a Vector instead of a Point). This broke some code that expected `.Doodad` to directly reference the Drawing.Doodad: now you had to refer to it as `a.Drawing.Doodad` which was ugly. Added convenience method .Doodad() for a shortcut. * Moved functions like GetBoundingRect() from doodads package to collision, where it uses its own slimmer Actor interface for just the relevant methods it needs.

kirsle referenced this pull request

2020-04-05 04:06:51 +00:00

Collision regression: actors get stuck on top of solid doodads #21

kirsle closed this pull request

2020-04-05 04:08:27 +00:00

kirsle referenced this pull request

2020-04-05 04:23:22 +00:00

Better Platforming Physics #18

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