113 lines
4.1 KiB
Fennel
113 lines
4.1 KiB
Fennel
(local core (require :core))
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(local command (require :core.command))
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(local style (require :core.style))
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(local View (require :core.view))
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(local tiles (require :game.tiles))
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(local tiledraw (require :editor.tiledraw))
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(local lume (require :lib.lume))
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(local util (require :lib.util))
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(local {: attach-imstate : mouse-inside : activate : active? : button} (util.require :editor.imstate))
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(local TileView (View:extend))
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(local pixel-size 24)
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(local sprite-scale 4)
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(local xy-to-ibit [])
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(for [x 0 15] (tset xy-to-ibit x []))
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(for [y 0 15]
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(tset (. xy-to-ibit 0) y (+ (* y 8) 7))
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(for [ibit 0 6]
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(tset (. xy-to-ibit (+ ibit 1)) y (+ (* y 8) ibit))))
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(for [y 0 15] (for [x 0 7]
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(tset (. xy-to-ibit (+ x 8)) y (+ (* (+ y 16) 8) x))))
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(fn map-bitxy [x y]
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(when (and (>= x 0) (< x 16) (>= y 0) (< y 16))
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(local ibit (. xy-to-ibit x y))
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(values (math.floor (/ ibit 8)) (% ibit 8))))
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(fn get-byte [tile ibyte]
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(: (tile:sub (+ ibyte 1) (+ ibyte 1)) :byte))
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(fn get-bit [tile ibyte ibit]
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(not= 0 (bit.band (get-byte tile ibyte) (bit.lshift 1 ibit))))
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(fn set-bit [tile ibyte ibit is-set]
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(local orval (bit.lshift 1 ibit))
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(-> (get-byte tile ibyte)
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(bit.band (bit.bnot orval))
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(bit.bor (if is-set orval 0))))
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(fn set-tile-bit [tile ibyte ibit is-set]
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(..
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(tile:sub 1 ibyte)
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(string.char (set-bit tile ibyte ibit is-set))
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(tile:sub (+ ibyte 2))))
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(fn draw-bit-color [bit x y]
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(local (bgcolor color) (tiledraw.pal-from-bit bit))
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(renderer.draw_rect x y pixel-size pixel-size bgcolor)
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(renderer.draw_rect (+ x 3) (+ y 3) (- pixel-size 6) (- pixel-size 6) color))
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(fn draw-bit [bit x y even]
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(renderer.draw_rect x y pixel-size pixel-size (if bit [255 255 255] [0 0 0])))
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(fn TileView.new [self]
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(TileView.super.new self)
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(set self.tiles (tiles.loadtiles))
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(set self.itile 1)
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(set self.tilesprites [])
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(attach-imstate self))
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(fn TileView.tile [self] (or (. self.tiles self.itile) (string.rep "\0" 32)))
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(fn TileView.draw-tile [self tile x y]
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(when (not (active? self :tile))
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(set self.bit nil))
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(activate self :tile x y (* (+ pixel-size 1) 16) (* (+ pixel-size 1) 16))
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(for [bitx 0 15] (for [bity 0 15]
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(local (ibyte ibit) (map-bitxy bitx bity))
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(local bit (get-bit tile ibyte ibit))
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(local (px py) (values (+ x (* bitx (+ pixel-size 1))) (+ y (* bity (+ pixel-size 1)))))
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(if (or (= bitx 0) (= bitx 15))
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(draw-bit-color bit px py)
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(draw-bit bit px py (= (% bitx 2) 1)))
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(when (and (active? self :tile) (mouse-inside self px py pixel-size pixel-size))
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(when (= self.bit nil) (set self.bit (not bit)))
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(when (not= self.bit bit)
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(self:update-tile (set-tile-bit tile ibyte ibit self.bit))))))
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(love.graphics.setColor 1 1 1 1))
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(fn TileView.update-tile [self newtile]
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(tset self.tiles self.itile newtile)
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(tset self.tilesprites self.itile nil))
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(fn TileView.save [self] (tiles.savetiles self.tiles))
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(fn TileView.select-rel [self ditile]
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(local itile (+ self.itile ditile))
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(when (>= itile 1) (set self.itile itile)))
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(fn TileView.tilesprite [self itile]
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(when (and (= nil (. self.tilesprites itile)) (not= nil (. self.tiles itile)))
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(tset self.tilesprites itile (tiledraw.tile-to-sprite (. self.tiles itile))))
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(. self.tilesprites itile))
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(fn TileView.draw [self]
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(self:draw_background style.background)
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(local (x y) (values (+ self.position.x 10) (+ self.position.y 10)))
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(self:draw-tile (self:tile) x y)
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(var tilex (+ self.position.x 10))
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(var tiley (+ self.position.y (* 18 (+ pixel-size 1))))
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(local tile-size (* 16 sprite-scale))
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(each [itile _ (ipairs self.tiles)]
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(love.graphics.draw (self:tilesprite itile) tilex tiley 0 sprite-scale sprite-scale)
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(when (= itile self.itile)
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(love.graphics.rectangle :line (- tilex 2) (- tiley 2) (+ (* 14 sprite-scale) 4) (+ tile-size 4)))
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(when (button self [:tile itile] tilex tiley tile-size tile-size)
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(set self.itile itile))
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(set tilex (+ tilex tile-size))
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(when (>= (+ tilex tile-size) (+ self.position.x self.size.x -10))
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(set tilex (+ self.position.x 10))
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(set tiley (+ tiley tile-size 4)))))
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(fn TileView.get_name [self] "Tile Editor")
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TileView
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