rename help files with .txt - overlay.lua creates a terminal compatible window on the overlay glasses - you can now run any program on the glasses overlay

neural/overlay.lua

@@ -0,0 +1,108 @@
+local Terminal = require('opus.terminal')
+
+local colors = _G.colors
+local device = _G.device
+
+--[[
+	Create a device for glasses
+	Usable as a redirect or UI target
+
+	Example usage:
+		Files --display=glasses
+		debugMonitor glasses
+
+	In a program:
+		local prev = term.redirect(device.glasses)
+		shell.run('shell')
+		term.redirect(prev)
+
+	Glasses do not use the CC font - so extended chars
+	do not display correctly.
+]]
+
+-- configurable
+local w, h = 46, 19
+local scale = .5
+
+local glasses = device['plethora:glasses']
+local canvas = glasses.canvas()
+local _, cy = 1, 1
+local _, gh = canvas:getSize()
+local lines = { }
+local map = {
+	['0'] = 0xF0F0F0FF,
+	['1'] = 0xF2B233FF,
+	['2'] = 0xE57FD8FF,
+	['3'] = 0x99B2F2FF,
+	['4'] = 0xDEDE6CFF,
+	['5'] = 0x7FCC19FF,
+	['6'] = 0xF2B2CCFF,
+	['7'] = 0x4C4C4CFF,
+	['8'] = 0x999999FF,
+	['9'] = 0x4C99B2FF,
+	['a'] = 0xB266E5FF,
+	['b'] = 0x3366CCFF,
+	['c'] = 0x7F664CFF,
+	['d'] = 0x57A64EFF,
+	['e'] = 0xCC4C4CFF,
+	['f'] = 0x191919FF, -- transparent
+}
+
+local xs, ys = 6 * scale, 9 * scale
+
+-- Position bottom left
+local group = canvas.addGroup({ x = 1, y = gh - (h * ys) - 10 })
+
+for y = 1, h do
+	lines[y] = {
+		text = { },
+		bg = { }
+	}
+	for x = 1, w do
+		lines[y].bg[x] = group.addRectangle(x * xs, y * ys, xs, ys, 0xF0F0F04F)
+		lines[y].text[x] = group.addText({ x * xs, y * ys }, '', 0x7FCC19FF)
+		lines[y].text[x].setScale(scale)
+	end
+end
+
+device.glasses = Terminal.window({
+	getSize = function()
+		return w, h
+	end,
+	isColor = function()
+		return true
+	end,
+	clear = function()
+		--canvas.clear()
+	end,
+	blit = function(text, fg, bg)
+		for x = 1, #text do
+			local ln = lines[cy]
+			ln.bg[x].setColor(map[bg:sub(x, x)])
+			ln.text[x].setColor(map[fg:sub(x, x)])
+			ln.text[x].setText(text:sub(x, x))
+		end
+	end,
+	setCursorPos = function(_, y)
+		-- full lines are always blit
+		cy = y
+	end,
+	setBackgroundColor = function()
+	end,
+	setTextColor = function()
+	end,
+	setCursorBlink = function()
+	end,
+	getBackgroundColor = function()
+		return colors.black
+	end,
+	getTextColor = function()
+		return colors.white
+	end,
+}, 1, 1, w, h, true)
+
+function device.glasses.setTextScale() end
+
+device.glasses.side = 'glasses'
+device.glasses.type = 'glasses'
+device.glasses.name = 'glasses'