A_WeaponReady

A_WeaponReady is a code pointer used in the normal weapon animation for all weapons.

A_WeaponReady is used in every weapon's idle/weapon bobbing sequence; most weapons (with the exception of the chainsaw) have an idle sequence that simply calls this code pointer every tic. The function performs a number of different actions:

• If the player's attack button is held down, it begins the firing animation for the current weapon. For this reason, if the player is switching weapons, pressing fire will do nothing until the weapon raise sequence has completed and A_WeaponReady is called.

• If the player is selecting a new weapon, begins the weapon lower sequence to switch to the new weapon. For this reason, if the player tries to switch to a new weapon while firing their current weapon, the change will not begin until the current firing sequence has completed and A_WeaponReady is called.

• If the player's avatar is in state S_PLAY_ATK1 (DeHackEd frame 154) or S_PLAY_ATK2 (frame 155), transitions to S_PLAY (frame 149). This ensures that once a player stops firing, other players in a multiplayer game see their avatar stop firing.

• Performs the weapon "bobbing" effect. As a result, because the chainsaw only calls A_WeaponReady once every four tics, its bobbing is visibly less smooth than other weapons.

• If the chainsaw is equipped, the DSSAWIDL sound effect is played.

Uses

The A_WeaponReady code pointer appears in the following states in Doom's state table:

Frame number	Doom internal name	Use
2	S_PUNCH	normal weapon animation for the fist
10	S_PISTOL	normal weapon animation for the pistol
18	S_SGUN	normal weapon animation for the shotgun
32	S_DSGUN	normal weapon animation for the super shotgun
49	S_CHAIN	normal weapon animation for the chaingun
57	S_MISSILE	normal weapon animation for the rocket launcher
67	S_SAW	normal weapon animation for the chainsaw
68	S_SAWB	normal weapon animation for the chainsaw
74	S_PLASMA	normal weapon animation for the plasma gun
81	S_BFG	normal weapon animation for the BFG9000

Example

The following is an example of how to set the A_WeaponReady code pointer in a DeHackEd file:

Pointer 21 (Frame 34)
Codep Frame = 81

Or using BEX syntax:

[CODEPTR]
Frame 1234 = WeaponReady

External links

• A_WeaponReady in the Doom source code.
• A_WeaponReady at the ZDoom wiki
• WeaponReady at the Eternity Engine wiki