This tutorial will show step by step how to make a box catcher. A custom testing element using in a few test chamber for Blue Portals. You need to place a box in the inside and the catcher send output.
prop_dynamic. Set World Model to models/props/box_dropper.mdl and set Pitch Yaw Roll (Y Z X) to 0 0 -180. Place this entity on the floor.
prop_dynamic or copy and paste the first entity. Set World Model to models/props/box_dropper_cover.mdl, set Pitch Yaw Roll (Y Z X) to 0 0 -180 and set Name to prop_boxcatcher_cover1. Place this entity to the top of first entity.
prop_dynamic. Set World Model to models/props/combine_ball_catcher.mdl. This time set Pitch Yaw Roll (Y Z X) to -90 0 0 and set Name to prop_boxcatcher_base1. Place this entity on the floor where you put the first entity.
And the base is ready to use, but you need to make the system to work
filter_activator_name and set this
|Filter mode||Disallow entities that match criteria|
Copy and paste
filter_activator_name. Reset Name to prop_boxcatcher_boxflitter1 and reset Filter mode to Allow entities that match criteria