83 lines
3 KiB
Fennel
83 lines
3 KiB
Fennel
(local util (require :lib.util))
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(local lume (require :lib.lume))
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(local files (require :game.files))
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(local platforms {
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:ii {:mapw 20 :maph 12 :tilew 14 :tileh 16 :editw 16
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:font {:tilew 7 :editw 8 :tileh 8}
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:brushes {:tilew 7 :editw 8 :tileh 8}
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:portraits {:tilew 28 :editw 32 :tileh 32}}
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:iigs {:mapw 26 :maph 16 :tilew 12 :tileh 12
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:layers [{:style :tiles} {:style :iso :x 6 :y 6} {:style :iso :x 6}]
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:yoffsets [0 6 0]
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:iso {:mapw 12 :maph 28 :tilew 24 :tileh 32 :xstagger 12 :ystagger 6}
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:font {:tilew 8 :tileh 8}
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:brushes {:tilew 8 :tileh 8}
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:portraits {:tilew 32 :tileh 32}}
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})
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(fn dimensions [] (. platforms (files.platform)))
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(fn style [name] (or (. (dimensions) name) (dimensions)))
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(fn tile-styles [include-details]
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(let [dim (dimensions)
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styles {:tiles dim}]
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(each [_ layer (ipairs (or dim.layers []))]
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(when (not= layer :tiles) (tset styles layer (. dim layer))))
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(if include-details styles (lume.keys styles))))
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(fn flags [] (or files.game.tileflags [:walkable]))
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(fn flag-to-bit []
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(collect [iflag flag (ipairs (flags))] (values flag (bit.lshift 1 (- iflag 1)))))
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(fn appendgfx [org gfx ?key ?label-prefix]
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(each [_ g (ipairs gfx)]
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(when g.label (org:append (.. (or ?label-prefix "") g.label)))
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(org:append [:bytes (. g (or ?key :gfx))])))
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(fn appendtiles [org]
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(local tiles files.game.tiles)
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(local flag-lookup (flag-to-bit))
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(each [tileset key (pairs (or files.game.tilesets {:tileset :gfx}))]
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(org:append [:align 0x100] tileset)
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(appendgfx org tiles key (if (= key :gfx) nil (.. key :-))))
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(appendgfx org files.game.portraits nil :portrait-)
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(org:append :tileflags)
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(each [_ tile (ipairs tiles)]
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(var flags 0)
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(each [flag _ (pairs tile.flags)]
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(set flags (bit.bor flags (. flag-lookup flag))))
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(org:append [:db flags])))
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(fn append-portraitwords [vm ?overrides]
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(local overrides (or ?overrides {}))
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(each [_ p (ipairs files.game.portraits)]
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(let [wordname (.. :draw-portrait- p.label)
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override (. overrides p.label)]
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(vm:word wordname :show-footer
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(if override (override p.label) [:vm :lit (.. :portrait- p.label)])
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:draw-portrait))))
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(fn encode-yx [xy]
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(if xy (bit.bor (bit.lshift (- xy.y 1) 8) (- xy.x 1)) 0xffff))
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(fn encode-itile [itile]
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(bit.bor
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(bit.lshift (bit.band (- itile 1) 0x07) 5)
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(bit.rshift (bit.band (- itile 1) 0xf8) 3)))
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(fn decode-itile [enctile]
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(+ 1 (bit.bor
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(bit.lshift (bit.band enctile 0x1f) 3)
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(bit.rshift (bit.band enctile 0xe0) 5))))
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(fn find-itile [tiles label ?itilenext]
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(local itile (or ?itilenext 1))
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(local tile (. tiles itile))
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(assert (not= tile nil) (.. "No such tile " label))
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(if (= tile.label label) (encode-itile itile)
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(find-itile tiles label (+ itile 1))))
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{: appendtiles : appendgfx : append-portraitwords : flags : flag-to-bit : find-itile
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: encode-yx : encode-itile : decode-itile : dimensions : tile-styles : style}
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