Series

Celeste

1 games, 19 claims. Each cell lists the claims about that concept in that game; “uses” marks a game that has the concept but no claims yet.

Concept	Celeste 2018
Coyote time	`JumpGraceTime`, Celeste's coyote time, is 0.1 s. T3 Grounded updates refill `jumpGraceTimer`; airborne ones subtract `Engine.DeltaTime` before `NormalUpdate`, which jumps on a press while it is above zero. T3 At normal speed, Celeste's `Engine.DeltaTime` is most likely `(float)0.0166667` s, the XNA and FNA default 166,667-tick step, not an exact 1/60 s. T1 The 0.1 s grace and 0.2 s variable-jump timers end on float rounding; a `(float)0.0166667` step gives 5 and 11 updates, and `(float)(1/60)` gives 6 and 12. T4
Gravity	Celeste's gravity is 900 px/s²; each airborne update moves vertical speed toward the fall limit by `Gravity * mult * Engine.DeltaTime`. T3 `MaxFall`, the normal limit on falling speed, is 160 px/s; `NormalBegin` starts `maxFall` there and gravity approaches it. T3 Holding down while falling at `MaxFall` or faster raises the limit toward `FastMaxFall` (240 px/s) at `FastMaxAccel` (300 px/s²); otherwise it eases back. T3 In the public Monocle source, `Calc.Approach(val, target, maxMove)` moves `val` toward `target` by at most `maxMove` without overshooting. T3 Celeste's actors sit on whole pixels; `MoveV` adds the float distance to a remainder, moves by its rounded value, and keeps the fraction. T2
Jump	A normal jump sets Madeline's vertical speed to `JumpSpeed`, −105 px/s. T3
Variable jump height	`Jump()` sets vertical speed to `JumpSpeed` plus any platform lift boost, saves it as `varJumpSpeed`, starts `varJumpTimer` at `VarJumpTime`, and zeroes the grace timer. T3 `HalfGravThreshold` is 40 px/s, the vertical speed below which (in either direction) holding jump halves gravity. T3 Gravity halves while \|`Speed.Y`\| is under `HalfGravThreshold` and jump is held (or auto-jump is on), so a held jump hangs at the top. T3 `VarJumpTime`, how long holding jump can keep the take-off speed, is 0.2 s. T3 While `varJumpTimer` runs, holding jump keeps Madeline rising no slower than `varJumpSpeed`, canceling gravity; releasing zeroes the timer and cuts no speed. T3 In each update, `Player.Update` ticks both jump timers, the state machine runs `NormalUpdate` (gravity, hold, and new jump), and then `MoveV` applies `Speed.Y * Engine.DeltaTime`. T3 Celeste's developers describe the game as locked to 60 updates per second, so the bundled PICO-8 port skips every second frame. T2 Simulating the jump code (flat ground, no lift boost, `(float)0.0166667` step) gives apexes of 7 px tapped and 27 px held, airtimes 15 and 39 updates; an exact 1/60 s step gives 29 px held in 40. T4