Call of Duty 5: Dynamic Entities : Ropes

This tutorial will show how to create ropes in COD:WAW.

Introduction

The ropes created using the method that follow can be used in a variety of mapping situation:

Theory: The rope is created within radiant, a rope entity is placed then a info_null sets the end of the rope and potential model target.

The example below will show how to get a dangling fish on a rope.

In radiant, in the 2d View right-click where you want the rope to start and select rope as shown below:

Noe deselect all again then select the rope entity first then the info_null and press W to connect them together:

Now selecting only the rope entity, press N to bring up the parameters for the rope;

Valid Keys:

length - This will set the length of the rope, it will be auto calculated if not set.
length_scale - This will sale the length of the rope giving it some more slack.
target - Specify info_null node to set the end point of the rope. info_null can then target a dyn_model/brushmodel or script_model/brushmodel to hook the rope to it.
target2 - Can be set to target a dyn_model/brushmodel or script_model/brushmodel to hook the rope to it.
health - Specify health on the rope and it will break if the dyn_model/brushmodel it is attached to takes damage. dyn ent must have health set also.
width - Cet the width of the rope.
force_scale - Sefaults to 1, decrease to have wind, bullets and grenades affect the rope less.
material - Assign a material to use for rendering the rope, if not specified it will use a default rope texture.

The rope is now ready, lets attach a model on the end
In the 2d View, right-click > Misc > Model, for this example i selected static_peleliu_dead_fish02
Place the fish/model on the middle of the info_null which represents the end of the rope:

With the model still selected, press N and tick the box for AUTO_GEN_PHYS_PRESET:

Deselect all, now we need to create a Dynamic Constraints Entity for the Fish/Model (also see HERE)
In the 2D view, right-click and select dyn > pointconstraint:

Place the new Entity exactly where the rope Entity is
With the newly created Entity selected, also select the Fish/Model and connect them by pressing W:

Final step is to connect the end of the rope (info_null) with the Fish/Model, select the info_null first then the Fish/Model and press W to connect