Alien Teleport Effect (HL1)

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The Alien teleport effect is seen in varius places during Half-Life. It's however not used in Half-Life 2. The effect is often seen as a particle explosion with a lot of green beams coming out if and a spawning in monster is also often used with it.

To create the effect, first make a room in Hammer. Next create an env_sprite entity where you want the effect to be. Set the targetname keyvalue to whatever you want. Set the sprites texture to something that looks good. Valve uses "sprites/f-explo" for most of it's teleport effects, however, other sprites like "sprites/a-tele" and other tele sprites will also look good. Set the scale to 1. Check the play once flag.

Next, place an env_beam in the same place as the sprite. Set the beams beam color to "0 0 255". Set the strike again time to -.5, and the sprite life time to .1 Check the following flags: Toggle, decal end and end spark. Name the beam whatever you want.

Next put a monstermaker in the floor under the sprite. Name it something. Set the amount of monsters, rate of spawning and max live Childrens to 1. Set the monster to spawn to the Alien you want to spawn. I recomend using monster_headcrab, monster_houndeye or monster_alien_slave.

Next, create two ambient_generics. Give them both the same name. Check the not toggled and start silent flags for bth of them. Set the sound for one of them to "debris/beamstart2.wav" and "debris/beamstart7.wav" for the other one.

Now, create a multi_manager. If you have smart-edit enabled, disable it. Add the following keyvalues to it. (env_sprite name) ; 0 (env_beam name) ; 0 (env_beam name) ; 1 (monstermaker name) ; 0 (ambient_generic name) ; 0 Now set a trigger or button to trigger your multi_manager.

There you go. Compile the map, and now you should see your effect appear with a teleporting in monster.