Ability to set Combat Robot speed using LuaEntity.speed

[raspberrypuppies]

TLDR: Add 'combat-robot' to LuaEntity.speed's whitelist

When combat robots spawn they slowly drift towards their Entity.orientation until they hit their leash radius. Normally, this means they slowly drift towards the right until the player moves around. The player's random motion + leash behavior causes them to orbit chaotically. But combat robots created for static entities like turrets will always drift and never act alive like they do for players. You can change the drift direction using Entity.orientation but there's no way to give them a nudge to start orbiting around. Trying to set the speed with LuaEntity.speed causes an error.


Minimum example to reproduce

data.lua

Code: Select all

local turret = data.raw['ammo-turret']['gun-turret']
turret.created_effect = {
    type = 'direct',
    action_delivery = {
        type = "instant",
        target_effects = { {
            type = "create-entity",
            entity_name = 'defender',
            show_in_tooltip = true,
            offset_deviation = { { -4, -4 }, { 4, 4 } },
            trigger_created_entity = true,
            offsets = {{0,0}}
        } },
    }
};

control.lua

Code: Select all

script.on_event(defines.events.on_script_trigger_effect,
    function(event)
        if event.entity.name == 'defender' then
            event.entity.orientation = math.random()
            --event.entity.speed = 1 -- causes an error
        end
    end)

[Bilka]

Okay, I added LuaEntity::get_movement() and set_movement() for 2.0.67.