A_TroopAttack
From DoomWiki.org
A_TroopAttack is a code pointer used in the attack animation for the imp.
A_TroopAttack is used for both of the imp's methods of attack. If the imp is within melee range of its target, it does a random amount of damage to its target and plays the sound effect DSCLAW. Otherwise, it launches a fireball (object of type MT_TROOPSHOT) towards its target. If the monster has no target, nothing happens.
The naming of this code pointer is a somewhat confusing artifact of Doom's development process where the imp was initially called a "troop" before the addition of the zombieman (a.k.a. trooper). A similar situation exists with A_SargAttack.
Contents
Uses[edit]
The A_TroopAttack code pointer appears in the following states in Doom's state table:
| Frame number | Doom internal name | Use |
|---|---|---|
| 454 | S_TROO_ATK3 | attack animation for the imp |
Example[edit]
The following is an example of how to set the A_TroopAttack code pointer in a DeHackEd file:
Pointer 21 (Frame 34) Codep Frame = 454
Or using BEX syntax:
[CODEPTR] Frame 1234 = TroopAttack
Code structure[edit]
The following call graph shows the code structure of the A_TroopAttack function. The graph has two main branches corresponding to the melee (P_CheckMeleeRange and P_DamageMobj) and fireball (P_SpawnMissile) attacks.
External links[edit]
- A_TroopAttack in the Doom source code.
- A_TroopAttack at the ZDoom wiki
- TroopAttack at the Eternity Engine wiki
