LAZOR API

local laser_speed = 1.5

return function(fire, power)
    return function(entity)
        local m = vector.new(entity.motionX, entity.motionY, entity.motionZ)
        local p = vector.new(entity.x, entity.y, entity.z)
        local t = p:length() / laser_speed -- time for laser to reach target
        local o = m * t -- offset from original position when laser would have reached target
        local n = p + o -- final position of entity at point when laser would have reached target (good enough?)
        local x, y, z = n.x, n.y, n.z

        local pitch = -math.atan2(y, math.sqrt(x * x + z * z))
        local yaw = math.atan2(-x, z)

        fire(math.deg(yaw), math.deg(pitch), power)
    end
end