Asteroides - Codea game - 2/10 - Asteroid.lua

Asteroid = class()

function Asteroid:init(avoidpos)
    self.position = vec2(math.random(WIDTH),math.random(HEIGHT)) - avoidpos
    self.angle = math.random(360)
    local r = math.random(1,7)
    if r == 1 then
        self.speed  = vec2(1,1)
    elseif r == 2 then
        self.speed  = vec2(1,0)
    elseif r ==3 then
        self.speed  = vec2(0,1)
    elseif r == 5 then
        self.speed  = vec2(-1,-1)
    elseif r == 6 then
        self.speed  = vec2(-1,0)
    else
        self.speed  = vec2(0,-1)
    end
    self.points = math.random(333)
end

function Asteroid:update()
    self.angle = self.angle + 1
    self.position = self.position + self.speed
    if self.position.x > WIDTH then
            self.position.x = 0
        elseif self.position.x < 0 then
            self.position.x = WIDTH
        end
        if self.position.y > HEIGHT then
            self.position.y = 0
        elseif self.position.y < 0 then
            self.position.y = HEIGHT
        end
end

function Asteroid:draw()
    self:update()
    pushMatrix()
    translate(self.position.x,self.position.y)
    rotate(self.angle)
    sprite("Planet Cute:Rock")
    popMatrix()

end

function Asteroid:touched(touch)
    -- Codify does not automatically call this method
end