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--- `Button`
-- Menu element that can be activated by user.
Button = {
parent = --[[not.Menu]]nil,
x = 0,
y = 0,
text = "",
focused = false,
sprite,
quads,
delay = 2,
parent,
}
-- `Button` is a child of `Element`.
require "element"
Button.__index = Button
setmetatable(Button, Element)
function Button:new (parent)
local o = setmetatable({}, self)
o.parent = parent
o.sprite, o.quads = parent:getSheet()
return o
end
function Button:setText (text)
self.text = text or ""
return self
end
function Button:focus(next)
self.focused = true
return true
end
function Button:blur ()
self.focused = false
end
function Button:active () end
function Button:isEnabled ()
return true
end
function Button:draw (scale)
local x,y = self:getPosition()
local quad = self.quads
local sprite = self.sprite
if self:isEnabled() then
love.graphics.setColor(255, 255, 255, 255)
else
love.graphics.setColor(140, 140, 140, 255)
end
love.graphics.draw(sprite, quad.button.normal, x*scale, y*scale, 0, scale, scale)
if self.focused then
love.graphics.draw(sprite, quad.arrow_l, (x+54+math.floor(self.delay))*scale, (y+5)*scale, 0, scale, scale)
love.graphics.draw(sprite, quad.arrow_r, (x-2-math.floor(self.delay))*scale, (y+5)*scale, 0, scale, scale)
end
love.graphics.setFont(Font)
love.graphics.printf(self.text, (x+2)*scale, (y+4)*scale, 54, "center", 0, scale, scale)
end
function Button:update (dt)
self.delay = self.delay + dt
if self.delay > Button.delay then -- Button.delay is initial
self.delay = self.delay - Button.delay
end
end
function Button:controlpressed (set, action, key)
if action == "attack" and self.focused and self:isEnabled() then
self:active()
end
end
return Button
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