monster_headcrab Last edited 1 month ago2024-09-24 06:11:19 UTC

monster_headcrab - Point Entity

A headcrab is an alien parasite that latches onto human's heads, turning them into zombies. Their small size allows them to scurry around in vents or 'burrow' into sand. They can be difficult to hit due to their size, and once they're close enough they will jump towards the player, but they are otherwise fairly slow and weak. Bullsquids have a particular hatred against these creatures.

Attributes

• Name (targetname) - Property used to identify entities.
• Pitch Yaw Roll (Y Z X) (angles) - Sets the pitch (up / down), yaw (left / right) and roll (bank) respectively. The compass in WorldCraft / Hammer / J.A.C.K. corresponds to Yaw. Monsters will spawn facing this direction.
• Patrol Path or Target (target) - Name of a path_corner that the monster entity would start patrolling.

• Render FX (renderfx) - Gives objects special render effects. Think of it as modifying whatever the Render Mode puts out. The options are as follows:
  • 0 = Normal
  • 1 = Slow Pulse
  • 2 = Fast Pulse
  • 3 = Slow Wide Pulse
  • 4 = Fast Wide Pulse
  • 5 = Slow Fade Away
  • 6 = Fast Fade Away
  • 7 = Slow Become Solid
  • 8 = Fast Become Solid
  • 9 = Slow Strobe
  • 10 = Fast Strobe
  • 11 = Faster Strobe
  • 12 = Slow Flicker
  • 13 = Fast Flicker
  • 14 = Constant Glow
  • 15 = Distort
  • 16 = Hologram (Distort and Fade)
• Render Mode (rendermode) - Controls the type of rendering that is used for an object. Options are:
  • 0 = Normal
  • 1 = Color
  • 2 = Texture
  • 3 = Glow
  • 4 = Solid
  • 5 = Additive
• FX Amount (0 - 255) (renderamt)
• FX Color (R G B) (rendercolor)

• Trigger Target (TriggerTarget) - The event to trigger when the Trigger Condition is met. Used by monsters.
• Trigger Condition (TriggerCondition) - This controls the condition under which a monster will trigger its Trigger Target. The options are:
  • 0 = No Trigger
  • 1 = See Player, Mad at Player
  • 2 = Take Damage
  • 3 = 50% Health Remaining
  • 4 = Death
  • 7 = Hear World
  • 8 = Hear Player
  • 9 = Hear Combat
  • 10 = See Player Unconditional
  • 11 = See Player, Not In Combat

• Animation Sequence (editor) (sequence)

Flags

• WaitTillSeen (1) - Stands in place until seen by a player.
• Gag (2) - Makes no idle sounds.
• MonsterClip (4) - Makes func_monsterclip solid/impassable to this monster.
• Prisoner (16) - Won't attack, or be attacked by, other monsters.
• WaitForScript (128) - Does nothing, not implemented.
• Pre-Disaster (256) - For some NPCs, switch to pre-disaster dialogues and behaviour (busy and won't follow players).
• Fade Corpse (512)

Notes

• The burrowing behavior is not part of the AI, but a level designer's trick. It's achieved by making a non-solid sand brush move up, spawning a headcrab inside of it with a monstermaker, and then moving the sand brush down again.