← v0.2 Overview

How the player character moves, jumps, dies, and respawns — including checkpoint support and mobile controls.

Size & basics

The player is a 32×32 px square (1 grid cell). They spawn at the spawn point and respawn there (or at the last-touched checkpoint) on death.

Movement

• Horizontal speed — set by playerSpeed in map config (default 5).
• Max fall speed — capped proportionally to gravity.

Jump

Default: 1 jump, configurable via maxJumps. Jump height controlled by jumpForce (default −13.2).

• Infinite Jumps — the player can jump any time, unlimited.
• Additional Air Jump — one bonus coyote jump when walking off an edge.

Mobile / touchscreen controls

v0.2 added touchscreen support. On mobile devices, on-screen directional buttons appear for left, right, and jump.

Physics touchboxes

• Ground touchbox — x:0, y:8, w:32, h:24 — for solid collision.
• Hurt touchbox — x:4, y:6, w:24, h:24 — for hazard damage detection.

Death & respawn

Death triggers when the hurt touchbox contacts a lethal hazard, or the player falls below the die-line Y. Respawn order:

1. Last activated checkpoint
2. Map spawn point

Controls

Key	Action
← / A	Move left
→ / D	Move right
↑ / W / Space	Jump