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-- `Cloud`
-- That white thing moving in the background.
-- WHOLE CODE HAS FLAG OF "need a cleanup"
-- Metatable of `Cloud`
-- nils initialized in constructor
Cloud = {
x = 0, -- position horizontal
y = 0, -- position vertical
t = 1, -- type (sprite number)
v = 13, -- velocity
sprite = nil,
quads = {
[1] = love.graphics.newQuad( 1, 1, 158,47, 478,49),
[2] = love.graphics.newQuad(160, 1, 158,47, 478,49),
[3] = love.graphics.newQuad(319, 1, 158,47, 478,49)
}
}
-- Constructor of `Cloud`
function Cloud:new(x, y, t, v)
-- Meta
local o = {}
setmetatable(o, self)
self.__index = self
-- Load spritesheet to metatable if not yet loaded
if self.sprite == nil then
self.sprite = love.graphics.newImage("assets/clouds.png")
end
-- Init
o.x = x or self.x
o.y = y or self.y
o.t = t or self.t
o.v = v or self.v
return o
end
-- Position
function Cloud:getPosition()
return self.x, self.y
end
-- Update of `Cloud`, returns x for world to delete cloud after reaching right corner
function Cloud:update(dt)
self.x = self.x + self.v*dt
return self.x
end
-- Draw `Cloud`
function Cloud:draw(offset_x, offset_y, scale)
-- locals
local offset_x = offset_x or 0
local offset_y = offset_y or 0
local scale = scale or 1
local x, y = self:getPosition()
-- pixel grid
local draw_x = (math.floor(x) + offset_x) * scale
local draw_y = (math.floor(y) + offset_y) * scale
-- draw
love.graphics.setColor(255,255,255,255)
love.graphics.draw(self.sprite, self.quads[self.t], draw_x, draw_y, 0, scale, scale)
end
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