Fix inverted dance animation

Switch XyPair and Point3d to @class, over @alias
Seems to work better with autocomplete

src/baserunning.lua

@@ -201,7 +201,7 @@ function Baserunning:updateRunner(runner, runnerIndex, appliedSpeed, isAutoRun,
     if
         nearestBaseDistance < 5
         and runnerIndex ~= nil
-        and runner ~= self.batter --runner.prevBase
+        and runner ~= self.batter
         and runner.nextBase == C.Bases[C.Home]
         and nearestBase == C.Bases[C.Home]
     then

src/batting.lua

@@ -31,6 +31,7 @@ end
 -- and letting the user find a crank position and direction that works for them
 
 --- Assumes the bat is being held by self.baserunning.batter
+--- Mutates self.state for later rendering.
 ---@param batDeg number
 ---@param batSpeed number
 ---@param ball Point3d

src/draw/characters.lua

@@ -46,7 +46,7 @@ function drawFielder(fieldingTeamSprites, fielder, ball, flip)
     local danceOffset = FielderDanceAnimator:currentValue()
 
     local x = fielder.x
-    local y = fielder.y + danceOffset
+    local y = fielder.y - danceOffset
     fieldingTeamSprites[fielder.spriteIndex].smiling:draw(fielder.x, y - 20, flip)
     return drawFielderGlove(ball, x, y)
 end

src/utils.lua

@@ -1,16 +1,14 @@
 -- luacheck no new globals
 utils = {}
 
---- @alias XyPair {
+---@class XyPair
----   x: number,
+---@field x: number,
----   y: number,
+---@field y: number,
---- }
 
---- @alias Point3d {
+---@class Point3d
----   x: number,
+---@field x number,
----   y: number,
+---@field y number,
----   z: number,
+---@field z number,
---- }
 
 local sqrt <const> = math.sqrt