mirror of
https://github.com/LDDestroier/CC/
synced 2025-10-30 23:12:59 +00:00
497 lines
14 KiB
Lua
497 lines
14 KiB
Lua
-- start up lddterm
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local lddterm = {}
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lddterm.alwaysRender = false -- renders after any and all screen-changing functions.
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lddterm.useColors = true -- normal computers do not allow color, but this variable doesn't do anything yet
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lddterm.baseTerm = term.current() -- will draw to this terminal
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lddterm.transformation = nil -- will modify the current buffer as an NFT image before rendering
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lddterm.cursorTransformation = nil -- will modify the cursor position
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lddterm.drawFunction = nil -- will draw using this function instead of basic NFT drawing
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lddterm.adjustX = 0 -- moves entire screen X
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lddterm.adjustY = 0 -- moves entire screen Y
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lddterm.selectedWindow = 1 -- determines which window controls the cursor
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lddterm.windows = {}
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-- converts hex colors to colors api, and back
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local to_colors, to_blit = {
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[' '] = 0,
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['0'] = 1,
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['1'] = 2,
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['2'] = 4,
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['3'] = 8,
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['4'] = 16,
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['5'] = 32,
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['6'] = 64,
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['7'] = 128,
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['8'] = 256,
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['9'] = 512,
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['a'] = 1024,
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['b'] = 2048,
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['c'] = 4096,
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['d'] = 8192,
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['e'] = 16384,
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['f'] = 32768,
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}, {}
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for k,v in pairs(to_colors) do
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to_blit[v] = k
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end
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-- separates string into table based on divider
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local explode = function(div, str, replstr, includeDiv)
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if (div == '') then
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return false
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end
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local pos, arr = 0, {}
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for st, sp in function() return string.find(str, div, pos, false) end do
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table.insert(arr, string.sub(replstr or str, pos, st - 1 + (includeDiv and #div or 0)))
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pos = sp + 1
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end
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table.insert(arr, string.sub(replstr or str, pos))
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return arr
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end
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-- determines the size of the terminal before rendering always
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local determineScreenSize = function()
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scr_x, scr_y = lddterm.baseTerm.getSize()
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lddterm.screenWidth = scr_x
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lddterm.screenHeight = scr_y
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end
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determineScreenSize()
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-- takes two or more windows and checks if the first of them overlap the other(s)
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lddterm.checkWindowOverlap = function(window, ...)
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if #lddterm.windows < 2 then
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return false
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end
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local list, win = {...}
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for i = 1, #list do
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win = list[i]
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if win ~= window then
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if (
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window.x < win.x + win.width and
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win.x < window.x + window.width and
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window.y < win.y + win.height and
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win.y < window.y + window.height
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) then
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return true
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end
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end
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end
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return false
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end
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local fixCursorPos = function()
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local cx, cy
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if lddterm.windows[lddterm.selectedWindow] then
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if lddterm.cursorTransformation then
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cx, cy = lddterm.cursorTransformation(
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lddterm.windows[lddterm.selectedWindow].cursor[1],
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lddterm.windows[lddterm.selectedWindow].cursor[2]
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)
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lddterm.baseTerm.setCursorPos(
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cx + lddterm.windows[lddterm.selectedWindow].x - 1,
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cy + lddterm.windows[lddterm.selectedWindow].y - 1
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)
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else
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lddterm.baseTerm.setCursorPos(
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-1 + lddterm.windows[lddterm.selectedWindow].cursor[1] + lddterm.windows[lddterm.selectedWindow].x,
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lddterm.windows[lddterm.selectedWindow].cursor[2] + lddterm.windows[lddterm.selectedWindow].y - 1
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)
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end
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lddterm.baseTerm.setCursorBlink(lddterm.windows[lddterm.selectedWindow].blink)
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end
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end
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-- renders the screen with optional transformation function
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lddterm.render = function(transformation, drawFunction)
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-- determine new screen size and change lddterm screen to fit
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old_scr_x, old_scr_y = scr_x, scr_y
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determineScreenSize()
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if old_scr_x ~= scr_x or old_scr_y ~= scr_y then
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lddterm.baseTerm.clear()
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end
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local image = lddterm.screenshot()
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if type(transformation) == "function" then
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image = transformation(image)
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end
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if drawFunction then
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drawFunction(image, lddterm.baseTerm)
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else
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for y = 1, #image[1] do
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lddterm.baseTerm.setCursorPos(1 + lddterm.adjustX, y + lddterm.adjustY)
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lddterm.baseTerm.blit(image[1][y], image[2][y], image[3][y])
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end
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end
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fixCursorPos()
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end
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lddterm.newWindow = function(width, height, x, y, meta)
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meta = meta or {}
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local window = {
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width = math.floor(width),
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height = math.floor(height),
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blink = true,
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cursor = meta.cursor or {1, 1},
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colors = meta.colors or {"0", "f"},
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clearChar = meta.clearChar or " ",
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visible = meta.visible or true,
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x = math.floor(x) or 1,
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y = math.floor(y) or 1,
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buffer = {{},{},{}},
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}
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for y = 1, height do
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window.buffer[1][y] = {}
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window.buffer[2][y] = {}
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window.buffer[3][y] = {}
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for x = 1, width do
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window.buffer[1][y][x] = window.clearChar
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window.buffer[2][y][x] = window.colors[1]
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window.buffer[3][y][x] = window.colors[2]
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end
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end
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window.handle = {}
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window.handle.setCursorPos = function(x, y)
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window.cursor = {x, y}
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fixCursorPos()
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end
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window.handle.getCursorPos = function()
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return window.cursor[1], window.cursor[2]
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end
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window.handle.setCursorBlink = function(blink)
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window.blink = blink or false
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end
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window.handle.getCursorBlink = function()
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return window.blink
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end
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window.handle.scroll = function(amount)
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if amount > 0 then
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for i = 1, amount do
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for c = 1, 3 do
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table.remove(window.buffer[c], 1)
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window.buffer[c][window.height] = {}
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for xx = 1, width do
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window.buffer[c][window.height][xx] = (
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c == 1 and window.clearChar or
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c == 2 and window.colors[1] or
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c == 3 and window.colors[2]
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)
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end
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end
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end
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elseif amount < 0 then
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for i = 1, -amount do
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for c = 1, 3 do
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window.buffer[c][window.height] = nil
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table.insert(window.buffer[c], 1, {})
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for xx = 1, width do
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window.buffer[c][1][xx] = (
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c == 1 and window.clearChar or
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c == 2 and window.colors[1] or
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c == 3 and window.colors[2]
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)
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end
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end
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end
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end
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if lddterm.alwaysRender then
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lddterm.render(lddterm.transformation, lddterm.drawFunction)
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end
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end
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window.handle.scrollX = function(amount)
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if amount > 0 then
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for i = 1, amount do
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for c = 1, 3 do
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for y = 1, window.height do
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table.remove(window.buffer[c][y], 1)
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window.buffer[c][y][window.width] = (
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c == 1 and window.clearChar or
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c == 2 and window.colors[1] or
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c == 3 and window.colors[2]
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)
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end
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end
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end
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elseif amount < 0 then
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for i = 1, -amount do
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for c = 1, 3 do
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for y = 1, window.height do
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window.buffer[c][y][window.width] = nil
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table.insert(window.buffer[c][y], 1, (
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c == 1 and window.clearChar or
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c == 2 and window.colors[1] or
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c == 3 and window.colors[2]
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))
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end
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end
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end
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end
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if lddterm.alwaysRender then
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lddterm.render(lddterm.transformation, lddterm.drawFunction)
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end
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end
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window.handle.write = function(text, x, y, ignoreAlwaysRender)
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assert(text ~= nil, "expected string 'text'")
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text = tostring(text)
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local cx = math.floor(tonumber(x) or window.cursor[1])
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local cy = math.floor(tonumber(y) or window.cursor[2])
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text = text:sub(math.max(0, -cx - 1))
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for i = 1, #text do
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if cx >= 1 and cx <= window.width and cy >= 1 and cy <= window.height then
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window.buffer[1][cy][cx] = text:sub(i,i)
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window.buffer[2][cy][cx] = window.colors[1]
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window.buffer[3][cy][cx] = window.colors[2]
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end
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cx = math.min(cx + 1, window.width + 1)
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end
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window.cursor = {cx, cy}
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if lddterm.alwaysRender and not ignoreAlwaysRender then
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lddterm.render(lddterm.transformation, lddterm.drawFunction)
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end
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end
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window.handle.writeWrap = function(text, x, y, ignoreAlwaysRender)
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local words = explode(" ", text, nil, true)
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local cx, cy = x or window.cursor[1], y or window.cursor[2]
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for i = 1, #words do
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if cx + #words[i] > window.width + 1 then
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cx = 1
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if cy >= window.height then
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window.handle.scroll(1)
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cy = window.height
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else
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cy = cy + 1
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end
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end
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window.handle.write(words[i], cx, cy, true)
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cx = cx + #words[i]
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end
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if lddterm.alwaysRender and not ignoreAlwaysRender then
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lddterm.render(lddterm.transformation, lddterm.drawFunction)
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end
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end
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window.handle.blit = function(char, textCol, backCol, x, y)
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if type(char) == "number" then
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char = tostring(char)
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end
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if type(textCol) == "number" then
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textCol = tostring(textCol)
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end
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if type(backCol) == "number" then
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backCol = tostring(backCol)
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end
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assert(char ~= nil, "expected string 'char'")
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local cx = math.floor(tonumber(x) or window.cursor[1])
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local cy = math.floor(tonumber(y) or window.cursor[2])
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char = char:sub(math.max(0, -cx - 1))
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for i = 1, #char do
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if cx >= 1 and cx <= window.width and cy >= 1 and cy <= window.height then
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window.buffer[1][cy][cx] = char:sub(i,i)
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window.buffer[2][cy][cx] = textCol:sub(i,i)
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window.buffer[3][cy][cx] = backCol:sub(i,i)
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end
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cx = cx + 1
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end
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window.cursor = {cx, cy}
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if lddterm.alwaysRender and not ignoreAlwaysRender then
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lddterm.render(lddterm.transformation, lddterm.drawFunction)
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end
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end
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window.handle.print = function(text, x, y)
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text = text and tostring(text)
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window.handle.write(text, x, y, true)
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window.cursor[1] = 1
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if window.cursor[2] >= window.height then
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window.handle.scroll(1)
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else
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window.cursor[2] = window.cursor[2] + 1
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if lddterm.alwaysRender then
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lddterm.render(lddterm.transformation, lddterm.drawFunction)
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end
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end
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end
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window.handle.clear = function(char, ignoreAlwaysRender)
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local cx = 1
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for y = 1, window.height do
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for x = 1, window.width do
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if char then
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cx = (x % #char) + 1
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end
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window.buffer[1][y][x] = char and char:sub(cx, cx) or window.clearChar
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window.buffer[2][y][x] = window.colors[1]
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window.buffer[3][y][x] = window.colors[2]
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end
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end
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if lddterm.alwaysRender and not ignoreAlwaysRender then
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lddterm.render(lddterm.transformation, lddterm.drawFunction)
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end
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end
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window.handle.clearLine = function(cy, char, ignoreAlwaysRender)
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cy = math.floor(cy or window.cursor[2])
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local cx = 1
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for x = 1, window.width do
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if char then
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cx = (x % #char) + 1
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end
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window.buffer[1][cy or window.cursor[2]][x] = char and char:sub(cx, cx) or window.clearChar
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window.buffer[2][cy or window.cursor[2]][x] = window.colors[1]
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window.buffer[3][cy or window.cursor[2]][x] = window.colors[2]
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end
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if lddterm.alwaysRender and not ignoreAlwaysRender then
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lddterm.render(lddterm.transformation, lddterm.drawFunction)
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end
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end
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window.handle.clearColumn = function(cx, char, ignoreAlwaysRender)
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cx = math.floor(cx)
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char = char and char:sub(1,1)
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for y = 1, window.height do
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window.buffer[1][y][cx or window.cursor[1]] = char and char or window.clearChar
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window.buffer[2][y][cx or window.cursor[1]] = window.colors[1]
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window.buffer[3][y][cx or window.cursor[1]] = window.colors[2]
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end
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if lddterm.alwaysRender and not ignoreAlwaysRender then
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lddterm.render(lddterm.transformation, lddterm.drawFunction)
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end
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end
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window.handle.getSize = function()
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return window.width, window.height
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end
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window.handle.isColor = function()
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return lddterm.useColors
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end
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window.handle.isColour = window.handle.isColor
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window.handle.setTextColor = function(color)
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if to_blit[color] then
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window.colors[1] = to_blit[color]
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end
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end
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window.handle.setTextColour = window.handle.setTextColor
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window.handle.setBackgroundColor = function(color)
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if to_blit[color] then
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window.colors[2] = to_blit[color]
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end
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end
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window.handle.setBackgroundColour = window.handle.setBackgroundColor
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window.handle.getTextColor = function()
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return to_colors[window.colors[1]] or colors.white
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end
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window.handle.getTextColour = window.handle.getTextColor
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window.handle.getBackgroundColor = function()
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return to_colors[window.colors[2]] or colors.black
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end
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window.handle.getBackgroundColour = window.handle.getBackgroundColor
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window.handle.reposition = function(x, y)
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window.x = math.floor(x or window.x)
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window.y = math.floor(y or window.y)
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if lddterm.alwaysRender then
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lddterm.render(lddterm.transformation, lddterm.drawFunction)
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end
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end
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window.handle.setPaletteColor = function(...)
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return lddterm.baseTerm.setPaletteColor(...)
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end
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window.handle.setPaletteColour = window.handle.setPaletteColor
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window.handle.getPaletteColor = function(...)
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return lddterm.baseTerm.getPaletteColor(...)
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end
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window.handle.getPaletteColour = window.handle.getPaletteColor
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window.handle.getPosition = function()
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return window.x, window.y
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end
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window.handle.restoreCursor = function()
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lddterm.baseTerm.setCursorPos(
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-1 + window.cursor[1] + window.x,
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window.cursor[2] + window.y - 1
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)
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end
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window.handle.setVisible = function(visible)
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window.visible = visible or false
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end
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window.handle.redraw = lddterm.render
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window.handle.current = window.handle
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window.layer = #lddterm.windows + 1
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lddterm.windows[window.layer] = window
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return window, window.layer
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end
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lddterm.setLayer = function(window, _layer)
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local layer = math.max(1, math.min(#lddterm.windows, _layer))
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local win = window
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table.remove(lddterm.windows, win.layer)
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table.insert(lddterm.windows, layer, win)
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if lddterm.alwaysRender then
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lddterm.render(lddterm.transformation, lddterm.drawFunction)
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end
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return true
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end
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-- if the screen changes size, the effect is broken
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local old_scr_x, old_scr_y
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-- gets screenshot of whole lddterm desktop, OR a single window
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lddterm.screenshot = function(window)
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local output = {{},{},{}}
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local line
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if window then
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for y = 1, #window.buffer do
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line = {"","",""}
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for x = 1, #window.buffer do
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line = {
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line[1] .. window.buffer[1][y][x],
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line[2] .. window.buffer[2][y][x],
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line[3] .. window.buffer[3][y][x]
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}
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end
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output[1][y] = line[1]
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output[2][y] = line[2]
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output[3][y] = line[3]
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end
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else
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for y = 1, scr_y do
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line = {"","",""}
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for x = 1, scr_x do
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c = "."
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lt, lb = t, b
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t, b = "0", "f"
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for l = 1, #lddterm.windows do
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if lddterm.windows[l].visible then
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sx = 1 + x - lddterm.windows[l].x
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sy = 1 + y - lddterm.windows[l].y
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if lddterm.windows[l].buffer[1][sy] then
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if lddterm.windows[l].buffer[1][sy][sx] then
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c = lddterm.windows[l].buffer[1][sy][sx] or c
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t = lddterm.windows[l].buffer[2][sy][sx] or t
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b = lddterm.windows[l].buffer[3][sy][sx] or b
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break
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end
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end
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end
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end
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line = {
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line[1] .. c,
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line[2] .. t,
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line[3] .. b
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}
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end
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output[1][y] = line[1]
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output[2][y] = line[2]
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output[3][y] = line[3]
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end
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end
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return output
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end
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-- supports os.loadAPI
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for k,v in pairs(lddterm) do
|
|
_ENV[k] = v
|
|
end
|
|
|
|
return lddterm
|