LokiAPI

function checkNumber(var)
    assert(type(var) == "number", "Error: Expected type number. Got different type instead.");
end

function clc(clr,bOrW)
bOrW = bOrW or 0
    if term.isColor then
        return clr;
    else
        if bOrW == true or bOrW == 1 then
            return colors.white
        else
            return colors.black
        end
    end
end

function GOE(inNumber,compNumber,debugNr) -- greater or equal
    debugNr = debugNr or "";
    inNumber = tonumber(inNumber);
    compNumber = tonumber(compNumber);
    assert(compNumber <= inNumber, "Error: Expected number greater or equal. "..debugNr);
end

function getCenter(coordinate,subtraction)
    subtraction = subtraction or 0;
    checkNumber(subtraction);
    coordinate = coordinate or "x";
    x, y = term.getSize();
    assert(math.floor(x/2-subtraction)>=1,"Error: Subraction too high.");
    --assert(math.floor(y/2-subtraction)>=1,"Error: Subraction too high.");
    if coordinate == "x" then return math.floor(x/2 - subtraction) elseif coordinate == "y" then
    return math.floor(y/2 - subtraction) else
    return 1; end
end

function drawRectangle(xCoor,yCoor,width,height,color,fillType)
    xCoor = xCoor or 1; yCoor = yCoor or 1; width = width or 2; height = height or 2; color = color or colors.red; fillType = fillType or "fill";
    checkNumber(xCoor); checkNumber(yCoor); checkNumber(width); checkNumber(height); checkNumber(color);
    GOE(xCoor,1,"1"); GOE(yCoor,1,"2"); GOE(width,1,"3"); GOE(height,1,"4");
    if (fillType == "fill") then
        paintutils.drawFilledBox(xCoor,yCoor,xCoor+width-1,yCoor+height-1,color);
    else
        paintutils.drawBox(xCoor,yCoor,xCoor+width-1,yCoor+height-1,color);
    end
end

function clean(cursorPosX,cursorPosY,bgColor,textColor)
    cursorPosX = cursorPosX or 1; cursorPosY = cursorPosY or 1; bgColor = bgColor or colors.white; textColor = textColor or colors.black;
    checkNumber(cursorPosX); checkNumber(cursorPosY); checkNumber(bgColor); checkNumber(textColor);
    GOE(cursorPosX,1); GOE(cursorPosY,1);
    term.setCursorPos(cursorPosX,cursorPosY);
    term.setBackgroundColor(bgColor); term.setTextColor(textColor);
    term.clear();
end

function color(bgColor,textColor)
    bgColor = bgColor or colors.white; textColor = textColor or colors.black;
    term.setBackgroundColor(bgColor); term.setTextColor(textColor);
end

function save(table,name)
local file = fs.open(name,"w")
file.write(textutils.serialize(table))
file.close()
end

function load(name)
local file = fs.open(name,"r")
if file == nil then
return 0;
else
local data = file.readAll()
file.close()
return textutils.unserialize(data)
end
end