Turn your phone or tablet into a chess clock
Lua Carousel » Devlog
Playing chess with the kids today, we finally started to feel the need to impose some sort of time constraint on moves. That got me to rustle up this quick program:
Start_time = 12 -- seconds Curr_color = 'white' Chess_clock_time = { white=Start_time, black=Start_time, } function car.update(dt) Chess_clock_time[Curr_color] = math.max(0, Chess_clock_time[Curr_color] - dt) end -- initialize space per side local side_w = floor((Safe_width-60 - 100)/2) -- initialize font size local function font_size_for_chess_clock() local font_size local min_font_size = 20 local max_font_size = Safe_height for i=1,100 do if min_font_size >= max_font_size-5 then break end font_size = floor((min_font_size+max_font_size)/2) local font = g.newFont(font_size) local w = font:getWidth('00:00:00') if w < side_w then min_font_size = font_size elseif w > side_w then max_font_size = font_size elseif w == side_w then break end end return font_size end local font_size = font_size_for_chess_clock() local font = g.newFont(font_size) function car.draw() g.setFont(font) local top = Menu_height+20 local left = 30 local height = Safe_height-80 local gutter_width = 100 -- white side local time = Chess_clock_time.white if time <= 0 then color(1,0,0) rect('fill', left, top, side_w, height, 5,5) else color(0.2,0.2,0.2) rect('line', left, top, side_w, height, 5,5) end local white_time = time_str(time) local w = g.getFont():getWidth(white_time) if time == 0 then color(1,1,1) elseif time < 10 then color(1,0,0) else color(0,0,0) end local x = left + (side_w - w)/2 local y = top+(height-font_size)/2 g.print(white_time, x,y) -- black side time = Chess_clock_time.black if time <= 0 then color(1,0,0) else color(0.2,0.2,0.2) end local black_time = time_str(time) local w = g.getFont():getWidth(black_time) x = left + side_w + gutter_width rect('fill', x, top, side_w, height, 5,5) if time == 0 then color(0,0,0) elseif time < 10 then color(1,0,0) else color(1,1,1) end x = x + (side_w - w)/2 g.print(black_time, x,y) end function time_str(time) if time < 10 then local tens = floor(time/10) local fractional_part = time - tens return ('%d%0.2f'):format(tens, fractional_part) end local hours = floor(time/3600) time = time - hours*3600 assert(time < 3600) local minutes = floor(time/60) time = time - minutes*60 assert(time < 60) local seconds = floor(time) return ('%02d:%02d:%02d'):format(hours, minutes, seconds) end function car.mouse_press(x,y, b) if Chess_clock_time.white == 0 or Chess_clock_time.black == 0 then return end if y >= Menu_height + 20 then if Curr_color == 'white' then -- it's white's move if x <= 30+side_w then Curr_color = 'black' end else -- it's black's move if x >= 30 + side_w + 100 then Curr_color = 'white' end end end end
No more searching for apps in the app store and trying to ineffectually vet their privacy policies and permissions.
To keep the code short, we're lacking features. There's no UI for setting the time. Just edit the first line of the program. You have to put in the time in seconds even though it'll render in hours:minutes:seconds.
If you try pasting this program into Lua Carousel, remember to first run the abbreviations on one of the example screens. Or if you've deleted that screen, here are the abbreviations I used in this post:
g = love.graphics rect = g.rectangle color = g.setColor max = math.max floor = math.floor
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Lua Carousel
Write programs on desktop and mobile
Status | In development |
Category | Tool |
Author | Kartik Agaram |
Tags | LÖVE |
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