mirror of
https://github.com/bryanthaboi/gen1recomp
synced 2026-10-08 17:51:37 -04:00
bryanthaboi
25 lines
1.0 KiB
Lua
25 lines
1.0 KiB
Lua
local M = {}
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-- pret/pokegold engine/overworld/overworld.asm:102,254; pokecrystal:120,170
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function M.read(rom, symbols, constants, edition)
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local outdoor, sprites = symbols.OutdoorSprites, symbols.OverworldSprites
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if not outdoor or not sprites then return nil end
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local crystal = edition == "crystal"
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local data = { version = 1, edition = edition, rows = {}, outdoorGroups = {},
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capacity = crystal and 32 or 12, maxOutdoorSprites = crystal and 23 or 11 }
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for id = 1, assert(constants.numOverworldSprites) do
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local at = sprites[2] + (id - 1) * 6
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data.rows[id] = { length = rom:byte(sprites[1], at + 2) / 16,
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type = rom:byte(sprites[1], at + 4), palette = rom:byte(sprites[1], at + 5) }
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end
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local groups = 0
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for _, map in ipairs(constants.mapGroups or {}) do groups = math.max(groups, map.group or 0) end
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for group = 1, groups do
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local pointer = rom:word(outdoor[1], outdoor[2] + (group - 1) * 2)
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data.outdoorGroups[group] = rom:bytes(outdoor[1], pointer, data.maxOutdoorSprites)
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end
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return data
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end
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return M
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