revolt.hpp

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#pragma once
 
 
std::vector<uint32_t> revolt_map_from(sys::state& state) {
    uint32_t province_size = state.world.province_size();
    uint32_t texture_size = province_size + 256 - province_size % 256;
    std::vector<uint32_t> prov_color(texture_size * 2);
    auto sel_nation = state.world.province_get_nation_from_province_ownership(state.map_state.get_selected_province());
    std::unordered_map<uint16_t, float> rebels_in_province = {};
    std::unordered_map<int32_t, float> continent_max_rebels = {};
    state.world.for_each_rebel_faction([&](dcon::rebel_faction_id id) {
        auto rebellion = dcon::fatten(state.world, id);
        if((sel_nation && sel_nation == rebellion.get_ruler_from_rebellion_within().id) || !sel_nation) {
            for(auto members : state.world.rebel_faction_get_pop_rebellion_membership(id)) {
                rebels_in_province[province::to_map_id(members.get_pop().get_province_from_pop_location().id)] += members.get_pop().get_size();
            }
        }
    });
    for(auto& [p, value] : rebels_in_province) {
        auto pid = province::from_map_id(p);
        auto cid = dcon::fatten(state.world, pid).get_continent().id.index();
        continent_max_rebels[cid] = std::max(continent_max_rebels[cid], value);
    }
    state.world.for_each_province([&](dcon::province_id prov_id) {
        auto nation = state.world.province_get_nation_from_province_ownership(prov_id);
        if((sel_nation && nation == sel_nation) || !sel_nation) {
            auto fat_id = dcon::fatten(state.world, prov_id);
            auto i = province::to_map_id(prov_id);
            auto cid = fat_id.get_continent().id.index();
 
            uint32_t color = 0xDDDDDD; // white
            if(rebels_in_province[i] > 0.0f) {
                float gradient_index = (continent_max_rebels[cid] == 0.f ? 0.f : (rebels_in_province[i] / continent_max_rebels[cid]));
                color = ogl::color_gradient(gradient_index,
                        sys::pack_color(247, 15, 15), // red
                        sys::pack_color(46, 247, 15) // green
                );
            }
            prov_color[i] = color;
            prov_color[i + texture_size] = color;
        }
    });
    return prov_color;
}