Deltarune (Chapter 4) script viewer

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gml_Object_obj_homealone_vent_airflow_particle_Step_0

(view raw script w/o annotations or w/e)
1 
px = 0;
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py = 0;
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wspeed = 0;
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siner += (0.09 * sine_speed);
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move_amount_x = 1;
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move_amount_y = 1;
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var airflow_area = collision_rectangle(x, y - 5, x + sprite_width, y + sprite_height + 15, obj_homealone_vent_airflow, false, true);
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if (airflow_area != -4)
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{
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    if (airflow_area.image_index == 0)
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    {
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        move_right = true;
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        var bottom_area = collision_rectangle(x - 6, y + sprite_height, x + sprite_width, y + sprite_height + 4, obj_homealone_vent_airflow, false, true);
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        if (bottom_area != -4 && bottom_area.image_index == 2)
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        {
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            py -= 1;
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            siner = 0;
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        }
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        else
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        {
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            px += 4;
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            py -= (sin(siner) * 0.2);
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        }
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    }
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    if (airflow_area.image_index == 1)
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    {
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        var top_area = collision_rectangle(x, y - 2, x + sprite_width, y + 2, obj_homealone_vent_airflow, false, true);
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        if (top_area != -4 && top_area.image_index == 3)
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            py += 1;
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        else
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            px -= 4;
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        py += (sin(siner) * 0.2);
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        move_right = false;
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    }
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    if (airflow_area.image_index == 2)
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        py -= 4;
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    if (airflow_area.image_index == 3)
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    {
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        var left_area = collision_rectangle(x - 4, y, x + sprite_width, y, obj_homealone_vent_airflow, false, true);
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        if (left_area != -4 && left_area.image_index == 0)
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            px += 4;
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        py += 4;
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    }
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}
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if (airflow_area == -4)
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{
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    if (move_right)
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        py += 1;
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    else
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        py -= 1;
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}
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x += (px * speed_multipler);
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y += (py * speed_multipler);