Change transition from linear to decelerate in EDC script

Question

In EDC, I can use scripts in collections/group to make animation:

group { "my_group";
  script {
     public my_anim(val, Float:pos) {
        set_tween_state(PART:"elm.text", pos, "state_begin", 0.0, "state_end", 0.0);
     }
     public start_my_anim() {
        anim(1 /*duration in seconds*/, "my_anim", 1 /*I have no idea about this param*/);
     }
  }

  parts {
     text { "elm.text";
        desc { "state_begin";
           ...           
        }            
        desc { "state_end";
           ...
        }            
     }    
  }
}

If I call start_my_anim, it will animate my text, great!

But it will animate with LINEAR transition. How can I ask anim to use DECELERATE?

Answer 1

You can use set_tween_state_anim() instead of set_tween_state() as follows.

set_tween_state_anim(PART:"elm.text", "state_begin", 0.0, "state_end", 0.0, DECELERATE, pos);
//There are some transition modes. (e.g. LINEAR, ACCELERATE, DECELERATE, etc.)

BTW, the last parameter of anim() is passed as the value parameter of the script function.

public my_anim(val, Float:pos) {
    if (val == 9) { // This is the last parameter of anim function.
        set_tween_state(PART:"elm.text", pos, "state_begin", 0.0, "state_end", 0.0);
    }
}
public start_my_anim() {
    anim(1, "my_anim", 9); // The last parameter is passed as the value parameter of the script function.
}

Thank you.