Editing EDF item effects and inventory (section)

====Explanation of fields====
*'''sprite'''
:Default: no sprite.
:If set as a four-character sprite name, this will associate any [[thingtype]] with the '''SPECIAL''' [[Thing type flags|flag]] whose current sprite shows as this value to trigger this '''pickupeffect'''.
:Example: <code>sprite BON1</code>
*'''effects'''
:Default: no effect.
:This is a list of effects incurred on player when picking up the item. Each one must be defined in EDF as one of the following: '''ammoeffect''', '''armoreffect''', '''artifact''', '''healtheffect''', '''powereffect''' or '''weapongiver'''.
:Example: <code>effects Berserk, BerserkHealth</code>
*'''flags'''
:Default: no flags.
:This is an optional set of one or more flags, joined together by | (vertical bar). The flags you can use are:
:*'''ALWAYSPICKUP''': item shall always be picked, even if according to the '''effects''', there would be no need for the item. Example: health potions in DOOM.
:*'''LEAVEINMULTI''': if game is multiplayer, keep item on the ground for every players to find it. Commonly used by access keys.
:*'''NOSCREENFLASH''': if picked up, item will not flash player's screen.
:*'''SILENTNOBENEFIT''': only has effect in conjunction with '''ALWAYSPICKUP''': if picked up when unneeded, all user feedback (message, sound, flash) is suppressed.
:*'''COMMERCIALONLY''': only relevant for demo compatibility, marks the item as DOOM 2 (the "commercial" release) specific. The megasphere has this flag. Not needed for new mods.
:*'''GIVESBACKPACKAMMO''': commonly used by the entries with the '''BackpackItem''' in '''effects''' (which doubles player's ammo capacity) to also provide the backpack ammo amount for each available ammo '''artifact''' in the game.
*'''changeweapon'''
:Default: nothing.
:If set, causes the item to change player's current weapon to the designated one whenever picked up. Expects a [[weaponinfo]] definition. This is based on how the [[Doom Wiki:Berserk|Berserk pack]] acts in DOOM.
:Example: <code>changeweapon Fist</code>
*'''message'''
:Default: no message.
:What message to display at the top of the view when picking up the item. This doesn't cover special cases such as the medikit low health message or the special BFG9000 variants.
:Example: <code>message "picked up an item."</code>
*'''sound'''
:Default: none
:Sets the [[sound]] to play when picking up the item.
:Example: <code>sound itemup</code>

Note: the '''pfxname''' field (which you may encounter in the base EDF) is only needed for compatibility with a deprecated feature.