# Debug commands of @ferret/physics-combustion, @ferret/physics-explosions

Call with `world.commands.execute(name, args)`; `world.commands.list()` on the running game is the authority. Read from the sources of these packages.

- `chamber.ignite` — light the premix: {name} -> true when it lit
- `chamber.state` — mass, temperature, pressure, fuel: {name}
- `chamber.vent` — set or clear the vent: {name, area?, Cd?}
- `combustion.info` — what is in the combustion capability
- `engine.start` — start the engine
- `engine.stop` — stop the engine
- `engine.throttle` — set the throttle 0..1: {value}
- `gun.fire` — fire a gun: {name, spec, direction?}
- `explosion.detonate` — detonate: {at, tnt|energy|vessel, burst?, burial?, casing?, seed?}
- `explosion.info` — the blast at a distance: {tnt, distance} -> {overpressure, impulse, duration, arrival}
- `explosion.preview` — radii of overpressures: {tnt, pressures:[Pa]} -> [m]