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https://github.com/bryanthaboi/gen1recomp.git
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bryanthaboi
45 lines
1.7 KiB
Lua
45 lines
1.7 KiB
Lua
-- Game Boy Printer stand-in. Yellow's printer jobs
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-- (engine/printer/printer.asm: PrintPokedexEntry and friends) drove a
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-- serial thermal printer; this port renders the same printout into a PNG
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-- under prints/ in the save directory instead, and the caller shows a
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-- dialog with where it landed. Scaled up 4x so the "print" is legible
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-- on a modern screen.
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local Logger = require("src.core.Logger")
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local Printer = {}
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local SCALE = 4
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-- Render drawFn (which draws a w x h GB-pixel image at 0,0) into
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-- prints/<name>_<stamp>.png. Returns the save-dir-relative path, or nil
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-- and an error string (headless / no canvas support degrades gracefully).
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function Printer.save(name, w, h, drawFn)
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if not (love.graphics and love.graphics.newCanvas) then
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return nil, "no graphics"
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end
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local ok, canvas = pcall(love.graphics.newCanvas, w * SCALE, h * SCALE)
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if not ok then return nil, tostring(canvas) end
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love.graphics.push("all")
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love.graphics.setCanvas(canvas)
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love.graphics.origin()
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love.graphics.scale(SCALE, SCALE)
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love.graphics.clear(1, 1, 1, 1)
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love.graphics.setColor(1, 1, 1, 1)
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local drawOk, drawErr = pcall(drawFn)
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love.graphics.pop()
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if not drawOk then return nil, tostring(drawErr) end
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local data
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ok, data = pcall(canvas.newImageData, canvas)
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if not ok then return nil, tostring(data) end
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love.filesystem.createDirectory("prints")
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local path = ("prints/%s_%s.png"):format(name, os.date("%Y-%m-%d_%H%M%S"))
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local encOk, err = pcall(data.encode, data, "png", path)
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if not encOk then return nil, tostring(err) end
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Logger.info("printed %s -> %s/%s",
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name, love.filesystem.getSaveDirectory(), path)
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return path
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end
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return Printer
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