97 lines
4.3 KiB
Text
97 lines
4.3 KiB
Text
# state.ludic - the port, the kinds, the facts, and what the sky holds
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# what the weather asks the world. Any member may be left out of the bind: the answer is then
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# "yes, it is mine", noon and daylight, the kind's own odds, no bias, the first wet kind, and a
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# seed of 1.
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export port WeatherWorld {
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owns_world: fn() -> bool = fn wx_owns_alone
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hours: fn() -> float = fn wx_noon
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is_night: fn() -> bool = fn wx_daylight
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odds: fn(int) -> []float = fn wx_own_odds # weights for the next spell, per kind, from this kind
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bias: fn() -> int = fn wx_no_bias # what the story wants now: WEATHER_* below
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front: fn() -> int = fn wx_first_wet # the kind a wanted front comes as
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front_hours: fn() -> float = fn wx_no_hours # the least a wanted front lasts once it arrives
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seed: fn() -> int = fn wx_seed_one
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}
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function wx_owns_alone() -> bool { return true }
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function wx_noon() -> float { return 12.0 }
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function wx_daylight() -> bool { return false }
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function wx_own_odds(weather_st: WeatherState, from: int) -> []float { return weather_st.wx_kinds[from].odds }
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function wx_no_bias() -> int { return WEATHER_NO_BIAS }
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function wx_no_hours() -> float { return 0.0 }
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function wx_seed_one() -> int { return 1 }
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# what the story may ask of the sky
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export const WEATHER_NO_BIAS: int = 0
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export const WEATHER_WANT_WET: int = 1 # send a front, soon
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export const WEATHER_HOLD: int = 2 # keep this spell going a while yet
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export const WEATHER_WANT_CLEAR: int = 3 # clear the sky and keep it clear
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# one kind of weather; its place in the list the game hands in is its number
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export property WeatherKind {
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name: string = ""
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clear: bool = false # the kind a sky eases out to: nothing falls, amount goes to 0
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wet: bool = false # rain or snow is falling (weather_wet)
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soak: float = 0.0 # how wet the ground gets under it, 0..1
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overcast: float = 0.0
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cold: float = 0.0 # extra cold per game hour, in the game's units
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wind: float = 0.2 # the strength the wind builds toward, 0..1
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wind_dir: float = -1.0 # radians the wind blows toward; below 0, the valley's daily turn
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thunder: bool = false
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spell_lo: float = 2.0 # game hours a spell lasts, drawn in [lo, hi)
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spell_hi: float = 8.0
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odds: []float = null # weights for the next spell, per kind
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}
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export const WEATHER_BEGAN: int = 0 # a spell began (kind, from)
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export const WEATHER_CLEARED: int = 1 # a wet spell gave way to clear sky in daylight
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export const WEATHER_THUNDER: int = 2 # a lightning strike, and its thunder
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export const WEATHER_FRONT: int = 3 # a front the story asked for is forecast (kind)
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export property WeatherFact {
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what: int = 0
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kind: int = 0
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from: int = 0
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}
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export state WeatherState {
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wx_down_dir: float = 0.0 # the wind overnight and into the morning
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wx_up_dir: float = 3.1415927 # the wind while the slopes are warm
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wx_up_from: float = 10.0
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wx_up_to: float = 19.0
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wx_kinds: []WeatherKind = null
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wx_state: int = 0
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wx_next: int = 0
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wx_left: float = 0.0 # game hours left in this spell
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wx_amount: float = 0.0 # 0..1, how far in (eases at the edges)
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wx_forecast: int = 0
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wx_forced: bool = false # the next spell is a front the story asked for
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wx_wind: float = 0.2
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wx_dir: float = 0.0 # radians the wind blows toward
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wx_ground: float = 0.0 # 0 dry .. 1 soaked
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wx_flash: float = 0.0
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wx_thunder_t: float = 0.0 # real seconds to the next strike
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wx_clear_t: float = 0.0 # game hours of after-the-front light left
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wx_wet_today: bool = false
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wx_wet_yesterday: bool = false
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wx_dice: Rng = null
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wx_facts: Queue<WeatherFact> = wx_facts__new()
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}
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# the facts, oldest first; the game drains them into its notices and sounds
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export function weather_facts(weather_st: WeatherState) -> Queue<WeatherFact> {
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return weather_st.wx_facts
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}
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function wx_fact(weather_st: WeatherState, what: int, kind: int, from: int) -> void {
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var f = q_rec(weather_facts(weather_st))
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if f == null {
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@alloc_ok("past the ring: more of these in a frame than its records, then kept in it")
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f = new WeatherFact
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q_ring_add(weather_facts(weather_st), f)
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}
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f.what = what
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f.kind = kind
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f.from = from
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q_push(weather_facts(weather_st), f)
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}
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function wx_facts__new() -> Queue<WeatherFact> { return queue_new("weather.facts") }
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