Add core library and element classes for Basalt framework

src/elements/BaseFrame.lua

@@ -0,0 +1,39 @@
+local Container = require("elements/Container")
+local Render = require("render")
+
+local BaseFrame = setmetatable({}, Container)
+BaseFrame.__index = BaseFrame
+
+---@diagnostic disable-next-line: duplicate-set-field
+function BaseFrame.new(id, basalt)
+    local self = setmetatable({}, BaseFrame):__init()
+    self:init(id, basalt)
+    self.terminal = term.current() -- change to :setTerm later!!
+    self._render = Render.new(self.terminal)
+    self._renderUpdate = true
+    local width, height = self.terminal.getSize()
+    self.set("width", width)
+    self.set("height", height)
+    self.set("background", colors.red)
+    self.set("type", "BaseFrame")
+    return self
+end
+
+function BaseFrame:multiBlit(x, y, width, height, text, fg, bg)
+    self._render:multiBlit(x, y, width, height, text, fg, bg)
+end
+
+function BaseFrame:textFg(x, y, text, fg)
+    self._render:textFg(x, y, text, fg)
+end
+
+---@diagnostic disable-next-line: duplicate-set-field
+function BaseFrame:render()
+    if(self._renderUpdate) then
+        Container.render(self)
+        self._render:render()
+        self._renderUpdate = false
+    end
+end
+
+return BaseFrame