WeaponLib 4.1

------------------------- WeaponLib v4.1 - (c) 2011 xerpi -------------------------
dofile("timer.lua")

weapon = {};
function weapon.new(image,time)
    local obj = {img = image, time = time,bullets={}, nbullets=0,time_act = timer.new(), running = false,current=1,dec=0};
    function obj:blit()
        for k,v in ipairs(self.bullets) do
            self.img:rotate(v.ang);
            self.img:blit(v.x,v.y);
        end
    end
    function obj:start()
        self.running = true;
        self.time_act:start();
    end
    function obj:stop()
        self.running = false;
        self.time_act:stop();
        self.time_act:reset();
    end
    function obj:shoot(x,y,vel,ang)
        if self.running then
            if self.time_act:time() > self.time then
                table.insert(self.bullets,{vel=vel,x=x,y=y,ang=ang,inc_x = math.cos(math.rad(ang)),inc_y = math.sin(math.rad(ang))});
                self.time_act:reset();
            end
        else
            self:start();
        end
    end
    function obj:move()
        for k,v in ipairs(self.bullets) do
            v.x = v.x + v.inc_x * v.vel;
            v.y = v.y + v.inc_y * v.vel;
            if v.x > 480 or v.x < 0 or v.y > 272 or v.y < 0 then table.remove(self.bullets,k); end
        end
    end
    function obj:collision(x,y,w,h,deadcollision)
        for k,v in ipairs(self.bullets) do
            if v.x >= x and v.x <= x+w and
               v.y >= y and v.y <= y+h then
                    if deadcollision then
                        table.remove(obj.bullets,k);
                    end
                    return true;
            end
        end
    end
    return obj;
end