# verbs.ludic - the fire burning down, and the only other ways it changes
function fr_out(fire_st: mut FireState) -> void {
  fire_st.fr_lit = false
  fire_st.fr_fuel = 0.0
  fr_fact(fire_st, FIRE_WENT_OUT)
}

# `gh` game hours of burning; in the rain it burns twice as fast with nothing over the ring,
# and under cover it counts the hours it held. Only the machine that owns the world burns it.
export function fire_run(fire_st: mut FireState, gh: float) -> void {
  if not fire_st.fr_lit or not FireWorld.owns_world() { return }
  let was = fire_st.fr_fuel
  fire_st.fr_fuel = fire_st.fr_fuel - gh * 60.0
  if FireWorld.is_wet() {
    if FireWorld.sheltered() { fire_st.fr_rain_h = fire_st.fr_rain_h + gh } else { fire_st.fr_fuel = fire_st.fr_fuel - gh * 60.0 }
  }
  if fire_st.fr_fuel < 0.0 {
    fr_out(fire_st)
    return
  }
  if was >= fire_st.fr_low_minutes and fire_st.fr_fuel < fire_st.fr_low_minutes { fr_fact(fire_st, FIRE_LOW_FUEL) }
}

# put out, and nothing said (the night burns it down)
export function fire_out(fire_st: mut FireState) -> void {
  fire_st.fr_lit = false
  fire_st.fr_fuel = 0.0
}

# burning with `fuel` minutes, and nothing said (staging, a test)
export function fire_set_burning(fire_st: mut FireState, fuel: float) -> void {
  fire_st.fr_lit = true
  fire_st.fr_fuel = fuel
}

# what the machine that owns the world says the fire is; going out is a fact when `say`
export function fire_told(fire_st: mut FireState, lit: bool, fuel: float, say: bool) -> void {
  let was = fire_st.fr_lit
  fire_st.fr_lit = lit
  fire_st.fr_fuel = fuel
  if was and not lit and say { fr_fact(fire_st, FIRE_WENT_OUT) }
}

# the rain hours outright (staging, a test)
export function fire_set_rain_hours(fire_st: mut FireState, h: float) -> void { fire_st.fr_rain_h = h }

# a new day: the rain hours start again
export function fire_morning(fire_st: mut FireState) -> void { fire_st.fr_rain_h = 0.0 }

export function fire_reset(fire_st: mut FireState) -> void {
  fire_st.fr_lit = false
  fire_st.fr_fuel = 0.0
  fire_st.fr_rain_h = 0.0
  q_clear(fire_facts(fire_st))
}