78 lines
2.0 KiB
Lua
78 lines
2.0 KiB
Lua
|
local MAX_SECONDS = 60 * 60 * 12
|
||
|
|
|
||
|
|
local Hand = {}
|
||
|
|
Hand.__index = Hand
|
||
|
|
|
||
|
|
function Hand:new(length, color, sec_per_turn, ticks_per_turn)
|
||
|
|
local h = {
|
||
|
|
length = (length or 10),
|
||
|
|
color = (color or {1,1,1}),
|
||
|
|
sec_per_turn = (sec_per_turn or 1),
|
||
|
|
ticks_per_turn = ticks_per_turn
|
||
|
|
}
|
||
|
|
return setmetatable(h, self)
|
||
|
|
end
|
||
|
|
|
||
|
|
function Hand:draw(sec_elapsed)
|
||
|
|
local turns = sec_elapsed / self.sec_per_turn
|
||
|
|
if self.ticks_per_turn then
|
||
|
|
turns = math.floor(turns * self.ticks_per_turn) / self.ticks_per_turn
|
||
|
|
end
|
||
|
|
love.graphics.push("all")
|
||
|
|
love.graphics.setColor(unpack(self.color))
|
||
|
|
love.graphics.rotate(2 * math.pi * turns)
|
||
|
|
love.graphics.rectangle("fill", -10, 10, 20, -self.length)
|
||
|
|
love.graphics.pop()
|
||
|
|
end
|
||
|
|
|
||
|
|
local clock = {rawseconds = 0, speedup = 120}
|
||
|
|
|
||
|
|
function clock:advance(dt)
|
||
|
|
self.rawseconds = self.rawseconds + dt * self.speedup
|
||
|
|
if self.rawseconds >= MAX_SECONDS then
|
||
|
|
self.rawseconds = self.rawseconds - MAX_SECONDS
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
function clock:getHour()
|
||
|
|
local h = math.floor(self.rawseconds / 60 / 60 % 12)
|
||
|
|
if h == 0 then
|
||
|
|
h = 12
|
||
|
|
end
|
||
|
|
return h
|
||
|
|
end
|
||
|
|
|
||
|
|
function clock:getMinute()
|
||
|
|
return math.floor(self.rawseconds / 60 % 60)
|
||
|
|
end
|
||
|
|
|
||
|
|
function clock:getSecond()
|
||
|
|
return math.floor(self.rawseconds % 60)
|
||
|
|
end
|
||
|
|
|
||
|
|
function clock:fmt()
|
||
|
|
return string.format("%2d:%02d:%02d", self:getHour(), self:getMinute(), self:getSecond())
|
||
|
|
end
|
||
|
|
|
||
|
|
local secondhand = Hand:new(300, {0.5,0.5,0}, 60, 60)
|
||
|
|
local minutehand = Hand:new(240, {1,0,0}, 60*60)
|
||
|
|
local hourhand = Hand:new(180, {0,0.5,0.5}, 60*60*12)
|
||
|
|
|
||
|
|
function love.load()
|
||
|
|
love.graphics.setBackgroundColor(0,0,0)
|
||
|
|
end
|
||
|
|
|
||
|
|
function love.update(dt)
|
||
|
|
clock:advance(dt)
|
||
|
|
end
|
||
|
|
|
||
|
|
function love.draw()
|
||
|
|
love.graphics.print(clock:fmt())
|
||
|
|
love.graphics.print(math.floor(clock.rawseconds), 10, 50)
|
||
|
|
|
||
|
|
love.graphics.translate(love.graphics.getWidth()/2, love.graphics.getHeight()/2)
|
||
|
|
secondhand:draw(clock.rawseconds)
|
||
|
|
minutehand:draw(clock.rawseconds)
|
||
|
|
hourhand:draw(clock.rawseconds)
|
||
|
|
end
|