42 lines
1.9 KiB
GDScript
42 lines
1.9 KiB
GDScript
extends RefCounted
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const HERMIT_CHANCE := 0.70
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const CREDITS_PER_LEVEL := 1000
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const DEUTER_PER_LEVEL := 1000
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static func roll(profile: Dictionary, salt: int) -> RandomNumberGenerator:
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var rng := RandomNumberGenerator.new()
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rng.seed = int(profile.get("seed", 0)) ^ str(profile.get("id", "")).hash() ^ salt
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return rng
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static func has_hermit(profile: Dictionary) -> bool:
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return roll(profile, 0x4845524d).randf() < HERMIT_CHANCE
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static func offer(profile: Dictionary, source_level: int) -> Dictionary:
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# No upper cap: expedition planets can continue the chain beyond level 120.
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var level := maxi(1, source_level) + roll(profile, 0x4d415053).randi_range(1, 5)
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return {"id":str(profile.id)+":distant_map", "level":level, "seed":roll(profile, 0x44495354).randi(), "source_level":maxi(1,source_level), "source_planet":str(profile.get("name","Nieznana planeta")), "name":"Odległy sektor %03d" % level}
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static func visit_offer(progress: Resource, profile: Dictionary, source_level: int) -> Dictionary:
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var visit := maxi(1, int(progress.visits.get(str(profile.id), 1)))
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var visit_profile := profile.duplicate(true)
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visit_profile.id = str(profile.id) + ":visit:%d" % visit
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visit_profile.seed = int(profile.get("seed", 0)) ^ (visit * 7919)
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return offer(visit_profile, source_level)
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static func map_cost(map: Dictionary) -> int:
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return maxi(1, int(map.level)) * CREDITS_PER_LEVEL
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static func fuel_cost(map: Dictionary) -> int:
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return maxi(1, int(map.level)) * DEUTER_PER_LEVEL
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static func buy(progress: Resource, captain: Resource, profile: Dictionary, source_level: int) -> bool:
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if not has_hermit(profile): return false
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var map := visit_offer(progress, profile, source_level)
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if progress.hermit_purchases.has(str(map.id)) or captain.credits < map_cost(map): return false
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captain.credits -= map_cost(map)
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progress.hermit_purchases[str(map.id)] = true
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progress.distant_maps[str(map.id)] = map.duplicate(true)
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captain.emit_changed()
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progress.emit_changed()
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return true
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