Implement src/engine/debuglog module that records a comprehensive
snapshot of game state every tick into a 4 MB in-memory ring buffer.
Activated by --debug-log command-line flag. Press F12 during gameplay
to dump the ring buffer to a human-readable debug_log.txt file. The
buffer also auto-flushes every 10 seconds as a safety net.
Each tick snapshot captures: input state (held/pressed/released bitmasks),
full player state (position, velocity, health, dash, aim, timers),
camera position, physics globals, level name, and a variable-length
list of all active entity positions/velocities/health.
New files:
- src/engine/debuglog.h — API and snapshot data structures
- src/engine/debuglog.c — ring buffer, record, and dump logic
Modified files:
- include/config.h — DEBUGLOG_BUFFER_SIZE constant
- src/engine/input.h/c — input_get_snapshot() to pack input bitmasks
- src/engine/core.c — debuglog_record_tick() call after update
- src/main.c — CLI flag, init/shutdown, F12 hotkey, set_level calls
Closes#19
Implements a full level editor that runs inside the game engine as an
alternative mode, accessible via --edit flag or E key during gameplay.
The editor auto-discovers available tiles from the tileset texture and
entities from a new central registry, so adding new game content
automatically appears in the editor without any editor-specific changes.
Editor features: tile painting (pencil/eraser/flood fill) across 3
layers, entity placement with drag-to-move, player spawn point tool,
camera pan/zoom, grid overlay, .lvl save/load, map resize, and test
play (P to play, ESC to return to editor).
Supporting changes:
- Entity registry centralizes spawn functions (replaces strcmp chain)
- Mouse input + raw keyboard access added to input system
- Camera zoom support for editor overview
- Zoom-aware rendering in tilemap, renderer, and sprite systems
- Powerup and drone sprites/animations wired up (were defined but unused)
- Bitmap font renderer for editor UI (4x6 pixel glyphs, no dependencies)
