Origin modding pop creation / secondary species

[Lamdarer]

Hi,
what I want to do is to create a new origin that works similar to the Syncretic Evolution origin from vanilla.
On game start I obviously want to spawn the pops of the secondary species additional to the one of the first.
Currently I have one main problem: How to I select the secondary species?
I managed to let the player create both species exactly as with the vanilla origin, but when the game starts the pops that should be of the secondary species does not spawn instead a random species spawns(the following code is in the /common/events folder and is executed by an on_game_start_country prompt in the /common/on_actions folder):

namespace = restellar

country_event = {
    id = restellar.1
    hide_window = yes
    is_triggered_only = yes

    trigger = {
        has_origin =  origin_multi_syncretic_evolution
    }

    immediate = {
        random_owned_planet = {
            limit = { is_capital = yes }
           
            random_owned_species = {
                limit = {
                    has_species_flag = syncretic_species@root.owner
                }
                save_event_target_as = syncretic_species

                set_species_flag = syncretic_species@root.owner
                if = {
                    limit = {
                        prev.owner = {
                            has_origin = origin_multi_syncretic_evolution
                        }
                    }
                    set_citizenship_type = {
                        country = root.owner
                        type = citizenship_slavery
                    }
                }
            }
            #This spawns 12 pops of a secondary species
            if= {
                while = {
                    count = 12
                    create_pop = {
                        species = last_created_species
                        ethos = random
                    }
                }
            }

        }
    }
}

So I guess the problem is that I use "species = last_created_species" in the last block, but how exactly should I change that to spawn the actual secondary species?
I looked up the code of the vanilla game files and some other mods, thats why I choose "last_created_species" however I think I probably need to set a flag to the main species and scope to the country or so? But I am not sure how to do that.
Also one additional question: How exactly do I change the pop count of the primary species in general?

 

[Mr. Morague]

Three problems I see, though they may not be actual problems;

1. root.owner seems to be unnecessary here--the root will always be the country the event fires on, and adding owner to that doesn't seem necessary. Maybe try this.owner instead?

2. My understanding is that you're trying to make more of the syncretic species, but what I'm reading suggests you might be trying to make a secondary syncretic species? If the first is the case, maybe just doing

random_owned_species = {
    limit = {
        NOT = {
            is_same_value = this.owner_species
        }
    }
}

would be easier, as it should only be valid for your empire's main species.

3. last_created_species is typically best used within the same event as the species' creation, as it's possible other events generating new species can fire first otherwise. However, you could save the selected species as an event target and use that.

 

[oakenbrain]

This way works for me:

Spoiler: .../scripted_effects/custom_origin_start_effects.txt

generate_custom_origin_start_pops = {
    if = {
        limit = { owner = { has_origin = origin_custom } }
      
        ## CLEAR ##
        while = {
            limit = { num_pops > 1 }
            random_owned_pop = {
                kill_pop = yes
            }
        }
      
        ## MAIN ##
        while = {
            count = 4
            create_pop = {
                species = owner_main_species
                ethos = random
            }
        }         

        ## SYNCRETIC ##
        last_created_species = { set_species_flag = syncretic_species@root.owner }         
        while = {
            count = 15
            create_pop = {
                species = last_created_species = {has_trait = trait_syncretic_citizens}
                ethos = random
                }
        } 
    }
}

Spoiler: .../events/custom_origin_events.txt

planet_event = {
    id = custom_origin.0001
    is_triggered_only = yes
    hide_window = yes
  
    immediate = {
        generate_custom_origin_start_pops = yes
    }
}

Spoiler: .../on_acions/custom_origin_on_actions.txt

empire_init_capital_planet = {
    events = { custom_origin.0001 }
}

Its essential to use empire_init_capital_planet action because exactly in this moment last_created_species is your syncretic species.