Method init_particle_with_node

plugins/animate/fire/fire.cpp:49–98

    }

    static void init_particle_with_node(Particle& p,
        wf::geometry_t bounding_box, double progress)
    {
        p.life = 1;
        p.fade = random(0.1, 0.6);

        wf::color_t color_setting = fire_color;

        float r;
        float g;
        float b;

        if (!random_fire_color)
        {
            // The calculation here makes the variation lower at darker values
            float randomize_amount_r = (color_setting.r * 0.857) / 2;
            float randomize_amount_g = (color_setting.g * 0.857) / 2;
            float randomize_amount_b = (color_setting.b * 0.857) / 2;

            r = random(color_setting.r - randomize_amount_r,
                std::min(color_setting.r + randomize_amount_r,
                    1.0));
            g = random(color_setting.g - randomize_amount_g,
                std::min(color_setting.g + randomize_amount_g,
                    1.0));
            b = random(color_setting.b - randomize_amount_b,
                std::min(color_setting.b + randomize_amount_b,
                    1.0));
        } else
        {
            r = random(0, 1);
            g = random(0, 1);
            b = random(0, 1);

            r = 2 * pow(r, 16);
            g = 2 * pow(g, 16);
            b = 2 * pow(b, 16);
        }

        p.color = {r, g, b, 1};

        const double cur_pos = bounding_box.height * progress;
        p.pos = {random(0, bounding_box.width), random(cur_pos - 10, cur_pos + 10)};
        p.start_pos = p.pos;
        p.speed     = {random(-10, 10), random(-25, 5)};
        p.g = {-1, -3};

        double size = fire_particle_size;
        p.base_radius = p.radius = random(size * 0.8, size * 1.2);
    }

    std::string stringify() const override
    {