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Revision 1.29 by root, Thu Dec 4 03:48:19 2008 UTC

-=head1 CROSSFIRE+ OBJECT AND INTERNALS DOCUMENTATION
+=head1 DELIANTRA OBJECT AND INTERNALS DOCUMENTATION
-Here is all information about the object types Crossfire+
+Here is all information about the object types Deliantra
 supports at the moment. This is not a complete documentation (yet)
 and browsing the source is still recommended to learn about
 the objects that aren't documented here.
 This documentation is in a sketchy state. It's mostly
 For non-player objects this field is not changed by server ticks.
 =item I<glow_radius> <number>
 This field indicates how far an object glows. Default is a radius of 0 (no
-glowing at all).
+glowing at all). Negative glow radii darken areas - currently, negative
+glow radii are stronger than positive ones.
 =item I<speed> <number>
 If this field is greater than MIN_ACTIVE_SPEED (~0.0001) the object is placed
 on the active object list and will be processed each tick (see also speed_left!).
 This flag is by default on.
 =item FLAG_NO_STEAL
 When this flag is set this object can't be stolen. The flag will be
-resetted once the object is placed on a map.
+reset once the object is placed on a map.
-When this flag is set on a monster it can defent attempts of stealing
+When this flag is set on a monster it can defend attempts at stealing
 (but in this context the flag is only used internally).
 =item FLAG_NO_SKILL_IDENT
 This flag is mostly used internal and prevents unidentified objects
 =head2 Description of type specific fields and behaviour
 The beginning of the headers of the following subsection
 are the server internal names for the objects types, see include/define.h.
+=head3 B<TRANSPORT> - type 2 - Player transports
+This type is implemented by the transport extension and has currently no special
+fields that affect it.
+=head3 B<ROD>, B<HORN> - type 3, 35 - Rods that fire spells
+Rods contain spells and can be fired by a player.
+=over 4
+=item I<level> <number>
+This field is used for calculating the spell level that can be fired
+with this rod, it's also the maximum level of the spell that can be fired.
+The level of the spell that is being fired depends mostly on
+the 'use magic item' skill level of the player and 1/10 of the level of the
+rod is added as bonus.
+=item I<hp> <number>
+The amount of spellpoints this rod has left. Recharges at a rate of C<1 +
+maxhp/10> per tick.
+=item I<maxhp> <number>
+The maximum amount of spellpoints this rod has.
+=item I<skill> <skill name>
+This field determines which skill you need to apply this object.
+=back
+=head3 B<TREASURE> - type 4 - Treasures
+This type of objects are for random treasure generation in maps.
+If this object is applied by a player it will replace itself with it's
+inventory. If it is automatically applied
+generate a treasure and replace itself with the generated treasure.
+Chests are also of this type, their treasures are generated by
+the auto apply code on map instantiation.
+=over 4
+=item I<hp> <number>
+The number of treasures to generate.
+=item I<exp> <level>
+If FLAG_AUTO_APPLY is not set the exp field has no further meaning
+and the difficulty for the treasurecode only depends on the maps difficulty,
+otherwise the exp field has the following meaning:
+If this field is not 0 it is passed as the difficulty
+to the treasure generation code to determine how good, how much
+worth a treasure is or what bonuses it is given by the treasure code.
+If this field is not set or 0 the difficulty of the map is passed to the treasure
+generation code.
+=item I<randomitems> <treasurelist>
+The treasurelist to use to generate the treasure which is put in the
+treasure objects inventory.
+=back
+=head3 B<POTION> - type 5 - Potions for drinking and other nastynesses
+These objects contain a spell and will emit it on apply, which most
+of the time has the meaning of 'drinking'.
+If no resistancy field, stat field or attacktype is set and no spell
+is put in the potion by the sp field or the randomitems the
+potion will become an artifact and the artifact code decides which kind
+of potion will be generated.
+If the potion has FLAG_CURSED or FLAG_DAMNED set the usage of this potion
+will yield an explosion and hurt the player.
+=over 4
+=item I<Str>, I<Dex>, I<Con>, I<Int>, I<Wis>, I<Cha>, I<Pow> <number>
+These stat fields determine how many stat points the player gets
+when he applies this potion.
+If FLAG_CURSED or FLAG_DAMNED is set the player will loose that many stat points.
+=item I<sp> <number>
+If this field is set and the randomitems field is not set
+the field is interpreted as spell number, please look the right
+number up in common/loader.C.
+If this field is set the randomitems field will be unset by the
+map loading code.
+=item I<attacktype> <attacktype>
+This field has some special meaning in potions, currently the
+bits for AT_DEPLETE and AT_GODPOWER control whethere this is a
+restoration potion or improvement potion.
+See include/attackinc.h for the bits of these types.
+If AT_DEPLETE is set the player will be restored and the ARCH_DEPLETION
+will be removed from him. If the potion has FLAG_CURSED or FLAG_DAMNED
+set the player will be drained a random stat by inserting an ARCH_DEPLETION
+into him.
+If AT_GODPOWER is enabled the player will gain +1 maxvalue in his hp, sp or grace stat.
+When the potion has FLAG_CURSED or FLAG_DAMNED set he will loose one in one of these stats.
+=item I<resist_RESISTANCY> <number>
+If this stat is set and no spell is in the potion the potion
+will create a force that give the player this specific resistancy.
+The forces type will be changed to POTION_EFFECT (see POTION_EFFECT type below)
+and the potion will last 10 times longer than the default force archetype
+FORCE_NAME (at the moment of this writing spell/force.arc).
+=item I<randomitems> <treasurelist>
+The inventory/spell of the potion will be created by calling the treasure code
+with the treasurelist specified here. (I guess it's highly undefined what
+happens if there is not a spell in the potions inventory).
+=item I<on_use_yield> <archetype>
+When this object is applied an instance of <archetype> will be created.
+=item I<subtypes> <potion subtype>
+see include/spells.h for possible potion subtypes, there are currently 4:
+=over 4
+=item POT_SPELL
+Unused, default behaiour of a potion.
+=item POT_DUST
+This potion can be thrown to cast the spell that it has in it's inventory,
+the behaviour is not defined if there is not a B<SPELL> in the inventory and the
+server will log an error.
+=item POT_FIGURINE
+Unused, default behaiour of a potion.
+=item POT_BALM
+Unused, default behaiour of a potion.
+=back
+=back
+=head3 B<FOOD> - type 6 - Eatable stuff
+This is for objects that are representing general eatables like
+beef or bread.
+The main difference between B<FOOD>, B<FLESH> and B<DRINK> is that they
+give different messages.
+The specialty of B<FLESH> is that it inherits the resistancies of the
+monsters it was generated in and will let dragons raise their resistancies
+with that. If the monster has the B<POISON> attacktype the B<FLESH>
+will change into B<POISON>.
+If a player runs low on food he will grab for B<FOOD>, B<DRINK> and B<POISON>
+and if he doesn't find any of that he will start eating B<FLESH>.
+=over 4
+=item I<title> <string>
+If the food has B<title> set or is cursed it is considered 'special', which
+means that the fields I<Str>, I<Dex>, I<Con>, I<Int>, I<Wis>, I<Pow>,
+I<resist_RESISTANCY>, I<hp> and I<sp> are interpreted and have further effects
+on the player.
+The higher the I<food> field is the longer the improvement of the player lasts
+(except for I<hp> and I<sp>).
+=item I<food> <number>
+This is the amount of food points the player gets when he eats this.
+=item I<on_use_yield> <archetype>
+When this object is applied an instance of <archetype> will be created.
+=back
+=head3 B<POISON> - type 7 - Poisonous stuff
+This type is for objects that can poison the player when he drinks/applies it.
+When applied it will hit the attacked with AT_POISON and will create
+a B<POISONING> object in the one who was hit.
+=over 4
+=item I<level> <number>
+This field affects the probability of poisoning. The higher the level difference
+between the one who is hit and the poision the more probable it is the attacked
+one will be poisoned.
+=item I<slaying> <race>
+This field has the usual meaning of 'slaying', when the
+poisoned's race matches the I<slaying> field the damage done by the poison
+is multiplied by 3.
+=item I<hp> <number>
+This is the amount of damage the player will receive from applying this.  The
+attacktype AT_POISON will be used to hit the player and the damage will
+determine the strenght, duration and depletion of stats of the poisoning.  The
+created B<POISONING> object which is being placed in the one who was attacked will
+get the damage from this field (which is maybe adjusted by slaying or the
+resistancies).
+=item I<food> <number>
+1/4 of <number> will be drained from the players I<food>.
+=item I<on_use_yield> <archetype>
+When this object is applied an instance of <archetype> will be created.
+=back
+=head3 B<BOOK> - type 8 - Readable books
+This type is basically for representing text books in the game.
+Reading a book also identifys it (if FLAG_NO_SKILL_IDENT is not set).
+=over 4
+=item I<msg> <text>
+This is the contents of the book. When this field is unset
+at treasure generation a random text will be inserted.
+=item I<skill> <skill name>
+The skill required to read this book. (The most resonable
+skill would be literacy).
+=item I<exp> <number>
+The experience points the player get for reading this book.
+=item I<subtype> <readable subtype>
+This field determines the type of the readable.
+Please see common/readable.C in the readable_message_types table.
+=back
+=head3 B<CLOCK> - type 9 - Clocks
+This type of objects just display the time when being applied.
+=head3 B<LIGHTNING> - type 12 - Lightnings (DEPRECATED: see B<SPELL_EFFECT> subtype SP_BOLT)
+This is a spell effect of a moving bolt. It moves straigt forward
+through the map until something blocks it.
+If FLAG_REFLECTING is set it even reflects on walls.
+FLAG_IS_TURNABLE should be set on these objects.
+=over 4
+=item I<move_type> <movetype>
+This field affects the move type with which the lightning moves through
+the map and which map cells will reflect or block it.
+=item I<attacktype> <attacktype>
+The attacktype with which it hits the objects on the map.
+=item I<dam> <number>
+The damage this bolt inflicts when it hits objects on the map.
+=item I<Dex> <number>
+This is the fork percentage, it is reduced by 10 per fork.
+And the I<dam> field is halved on each fork.
+=item I<Con> (internal)
+This value is a percentage of which the forking lightning
+is deflected to the left. This value should be mostly used internally.
+=item I<duration> <number>
+The duration the bolt stays on a map cell. This field is decreased each time
+the object is processed (see the meaning of I<speed> and I<speed_left> fields in
+the generic object field description).
+=item I<range> <number>
+This is the range of the bolt, each space it advances this field is decreased.
+=back
+=head3 B<ARROW> - type 13 - Arrows
+This is the type for objects that represent projectiles like arrows.
+The movement of B<THROWN_OBJ>s behave similar to this type.
+Flying arrows are stopped either when they hit something blocking
+(I<move_block>) or something which is alive.
+If it hits something that is alive, which doesn't have FLAG_REFL_MISSILE
+set, it will inflict damage. If FLAG_REFL_MISSILE is set it will inflict
+damage with a small chance which is affected by the I<level> field of the arrow.
+If FLAG_REFLECTING is set on the arrow it will bounce off everything
+that is not alive and blocks it's movement.
+When an arrow is being shot it's I<dam>, I<wc>, I<attacktype>, I<slaying>
+fields will be saved in the I<sp>, I<hp>, I<grace> and I<spellarg> fields of
+the object, to restore them once the arrow has been stopped.
+=over 4
+=item I<dam> <number>
+The amount of damage that is being done to the victim that gets hit.
+This field is recomputed when the arrow is fired and will consist
+of the sum of a damage bonus (see description of the B<BOW> type),
+the arrows I<dam> field, the bows I<dam> field, the bows I<magic> field
+and the arrows I<magic> field.
+=item I<wc> <number>
+The weapon class of the arrow, which has effect on the probability of hitting.
+It is recomputed when the arrow is being fired by this formula:
+  wc = 20 - bow->magic - arrow->magic - (skill->level or shooter->level)
+          - dex_bonus - thaco_bonus - arrow->stats.wc - bow->stats.wc + wc_mod
+When the arrow is not being shot by an player dex_bonus and thaco_bonus and the
+level is not added.
+wc_mod is dependend on the fire mode of the bow.  For a more detailed
+explanation of dex_bonus, thaco_bonus and wc_mod please consult the code.
+=item I<magic> <number>
+This field is added to the damage of the arrow when it is shot and
+will also improve it's I<speed> by 1/5 of it's value.
+=item I<attacktype> <attacktype>
+Bitfield which decides the attacktype of the damage, see include/attackinc.h
+On fireing the I<attacktype> of the bow is added to the arrows I<attacktype>.
+=item I<level> <number> (interally used)
+The level of the arrow, this affects the probability of piercing FLAG_REFL_MISSILE,
+see above in the B<ARROW> description.
+The I<level> is set when the arrow is fired to either the skill level or the
+shooters level.
+=item I<speed> <number> (internal)
+This field shouldn't be set directly in the archetype, the arrow will get it's
+I<speed> from the bow.  This fields value has to be at least 0.5 or otherwise the
+arrow will be stopped immediatly.
+On fireing the I<speed> of the arrow is computed of 1/5 of the
+sum of the damage bonus (see BOW), bow I<magic> and arrow I<magic>. After that 1/7
+of the bows I<dam> field is added to the I<speed> of the arrow.
+The minimum I<speed> of an arrow is 1.0.
+While flying the arrows I<speed> is decreased by 0.05 each time it's moved.
+If the I<speed> is above 10.0 it goes straight through the creature it hits and
+it's I<speed> is reduced by 1. If the I<speed> is lower or equal 10.0 the arrow is
+stopped and either sticked into the victim (see I<weight> field description) or
+put on it's map square (if it didn't break, see description of the I<food> field).
+=item I<weight> <number>
+This field is the weight of the arrow, if I<weight> is below or equal 5000 (5 kg)
+the arrow will stick in the victim it hits. Otherwise it will fall to the ground.
+=item I<food> <number>
+The breaking percentage. 100 (%) means: breaks on usage for sure.
+=item I<inventory> (internal)
+If the flying/moving object has something in it's inventory and it stops, it
+will be replaced with it's inventory. Otherwise it will be handled as usual,
+which means: it will be calculated whether the arrow breaks and it will be
+reset for reuse.
+=item I<slaying> <string>
+When the bow that fires this arrow has it's I<slaying> field set it is copied
+to the arrows I<slaying> field. Otherwise the arrows I<slaying> field remains.
+=item I<move_type> <movetype> (internally used)
+This field is set when the arrow is shot to MOVE_FLY_LOW.
+=item I<move_on> <movetype> (internally used)
+This field is set when the arrow is shot to MOVE_FLY_LOW and MOVE_WALK.
+=item I<race> <string>
+The I<race> field is a unique key that assigns arrows, bows and quivers. When
+shooting an arrow the bows I<race> is used to search for arrows (which have the
+same I<race> as the bow) in the players inventory and will recursively search in
+the containers (which are applied and have the same I<race> as the bow and the arrow).
+=back
+=head3 B<BOW> - type 14 - Bows, those that fire B<ARROW>s
+TODO, but take into account B<ARROW> description above!
+=head3 B<WEAPON> - type 15 - Weapons
+This type is for general hack and slash weapons like swords, maces
+and daggers and and ....
+=over 4
+=item I<weapontype> <type id>
+decides what attackmessages are generated, see include/define.h
+=item I<attacktype> <bitmask>
+bitfield which decides the attacktype of the damage, see include/attackinc.h
+=item I<dam> <number>
+amount of damage being done with the attacktype
+=item I<item_power> <level>
+the itempower of this weapon.
+=item I<name>
+the name of the weapon.
+=item I<level> (internal)
+The improvement state of the weapon.
+If this field is greater than 0 the I<name> field starts with the
+characters name who improved this weapon.
+=item I<last_eat> (internal)
+This seems to be the amount of improvements of a weapon,
+the formular for equipping a weapon seems to be (server/apply.C:check_weapon_power):
+  ((who->level / 5) + 5) >= op->last_eat
+=item I<last_sp>
+the weapon speed (see magic description)
+=item I<food> <number>
+addition to food regeneration of the player
+=item I<hp> <number>
+addition to health regeneration
+=item I<sp> <number>
+addition to mana regeneration
+=item I<grace> <number>
+addititon to grace regeneration
+=item I<gen_sp_armour> <number>
+the players I<gen_sp_armour> field (which is per default 10) is being added the
+<number> amount.  gen_sp_armour seems to be a factor with which gen_sp in
+do_some_living() is multiplied:  gen_sp *= 10/<number> meaning: values > 10 of
+I<gen_sp_armour> limits the amout of regenerated spellpoints.
+Generally this field on weapons is in ranges of 1-30 and decides the slowdown of the
+I<sp> regeneration.
+=item I<body_BODYSLOT>
+The part/slot of the body you need to use this weapon, possible values for
+C<BODYSLOT> should be looked up in common/item.C at body_locations.
+The value (in the range C<-7..7>) gives the number of those body slots
+used up by the item (if negative) or the number of body slots this object
+has (if positive, e.g. for monsters or players). The special value C<0>
+indicates that this object cannot equip items requiring these body slots.
+=item I<resist_RESISTANCY> <number>
+this is the factor with which the difference of the players resistancy and 100%
+is multiplied, something like this:
+   additional_resistancy = (100 - current_resistancy) * (<number>/100)
+if <number> is negative it is added to the total vulnerabilities,
+and later the total resistance is decided by:
+  'total resistance = total protections - total vulnerabilities'
+see also common/living.C:fix_player.
+=item I<path_(attuned|repelled|denied)>
+this field modifies the pathes the player is attuned to, see include/spells.h PATH_*
+for the pathes.
+=item I<luck> <number>
+this luck is added to the players I<luck>
+=item I<move_type>
+if the weapon has a I<move_type> set the player inherits it's I<move_type>
+=item I<exp> <number>
+the added_speed and bonus_speed of the player is raised by <number>/3.
+if <number> < 0 then the added_speed is decreased by <number>
+=item I<weight>
+the weight of the weapon
+=item I<magic>
+the I<magic> field affects the amounts of the following fields:
+  - wc : the players wc is adjusted by: player->wc -= (wc + magic)
+  - ac : the players ac is lowered by (ac + magic) if (player->ac + magic) > 0
+  - dam: the players dam is adjusted by: player->dam += (dam + magic)
+  - weapon speed (last_sp): weapon_speed is calculated by: (last_sp * 2 - magic) / 2
+                            (minium is 0)
+=item I<ac> <number>
+the amount of ac points the player's I<ac> is decreased when applying this object.
+=item I<wc> <number>
+the amount of wc points the player's I<wc> is decreased when applying this object.
+=back
+=head4 Player inherits following flags from weapons:
+   FLAG_LIFESAVE
+   FLAG_REFL_SPELL
+   FLAG_REFL_MISSILE
+   FLAG_STEALTH
+   FLAG_XRAYS
+   FLAG_BLIND
+   FLAG_SEE_IN_DARK
+   FLAG_UNDEAD
+=head3 B<GRIMREAPER> - type 28 - Grimreapers
+These type are mostly used for monsters, they give the
+monster the ability to dissapear after 10 hits with AT_DRAIN.
+=over 4
+=item I<value> <number>
+This field stores the hits the monster did yet.
+=back
+=head3 B<CREATOR> - type 42 - Object creators
+Once a creator is activated by a connection it creates a number of objects
+(cloned from it's inventory or a new object derived from the archetype
+named in the other_arch slot).
+If FLAG_LIVESAFE is set the number of uses is unlimited.
+=over 4
+=item I<hp> <number>
+If FLAG_LIVE_SAVE is not set it is the absolute number of times the creator can
+be used.
+=item I<speed> <number>
+If I<speed> is set the creator will create an object periodically,
+see I<speed> and I<speed_left> fields in the general object field description
+for more details.
+=item I<slaying> <string>
+If set the generated object's name and title will be set to this.
+=item I<other_arch> <string>
+If the inventory of the creator is empty new objects will be derived from the
+archetype named by <string>.
+=item I<connected> <number>
+See generic object field description.
+=back
+=head3 B<DRINK> - type 54 - Drinkable stuff
+See B<FOOD> description.
+=head3 B<CHECK_INV> - type 64 - Inventory checkers
+This object checks whether the player has a specific item in his
+inventory when he moves above the inventory checker. If the player has
+the item (or not, which can be controlled with a flag) a connection will be triggered.
+If you set I<move_block> you can deny players and monsters to reach the space where
+the inventory checker is on, see I<move_block> description below.
+The conditions specified by I<hp>, I<slaying> and I<race> are OR concationated.
+So matching one of those conditions is enough.
+=over 4
+=item I<move_block> <move type bitmask>
+If you set this field to block a movetype the move code will block any moves
+onto the space with the inventory checker, IF the moving object doesn't have
+(or has - if I<last_sp> = 0) the item that the checker is searching for.
+=item I<last_sp> (0|1)
+If I<last_sp> is 1 'having' the item that is being checked for will
+activate the connection or make the space with the checker non-blocking.
+If I<last_sp> is 0 'not having' the item will activate the connection
+or make the space with the checker non-blocking.
+=item I<last_heal> (0|1)
+If I<last_heal> is 1 the matching item will be removed if the inventory checker
+activates a connection and finds the item in the inventory.
+(A inventory checker that blocks a space won't remove anything from inventories)
+=item I<hp> <number>
+If this field is not 0 the inventory checker will search for an object
+with the type id <number>.
+=item I<slaying> <string>
+If this field is set the inventory checker will search for an object that
+has the same string in the I<slaying> field (for example a key string of a key).
+=item I<race> <string>
+If this field is set the inventory checker will search for an object which
+has the archetype name that matches <string>.
+=item I<connected> <connection id>
+This is the connection that will be activated. The connection is
+'pushed' when someone enters the space with the inventory checker,
+and it is 'released' when he leaves it.
+See also the description of the I<connected> field in the generic object field
+section.
+=back
 =head3 B<MOOD_FLOOR> - type 65 - change mood of monsters
 speed == 0 for triggered mood changes, speed != 0 for non-triggered mood
 changes.
                     who triggers the square. This setting
                     is not enabled for continous operation
  5:  'destroy mons' destroy any monsters on this space
  6:  'destroy pets' destroy friendly monsters on this space
-=head3 B<TRANSPORT> - type 2 - Player transports
-This type is implemented by the transport extension and has currently no special
-fields that affect it.
-=head3 B<ROD>, B<HORN> - type 3, 35 - Rods that fire spells
-Rods contain spells and can be fired by a player.
-=over 4
-=item I<level> <number>
-This field is used for calculating the spell level that can be fired
-with this rod, it's also the maximum level of the spell that can be fired.
-The level of the spell that is being fired depends mostly on
-the 'use magic item' skill level of the player and 1/10 of the level of the
-rod is added as bonus.
-=item I<hp> <number>
-The amount of spellpoints this rod has left. Recharges at a rate of C<1 +
-maxhp/10> per tick.
-=item I<maxhp> <number>
-The maximum amount of spellpoints this rod has.
-=item I<skill> <skill name>
-This field determines which skill you need to apply this object.
-=back
-=head3 B<TREASURE> - type 4 - Treasures
-This type of objects are for random treasure generation in maps.
-If this object is applied by a player it will replace itself with it's
-inventory. If it is automatically applied
-generate a treasure and replace itself with the generated treasure.
-Chests are also of this type, their treasures are generated by
-the auto apply code on map instantiation.
-=over 4
-=item I<hp> <number>
-The number of treasures to generate.
-=item I<exp> <level>
-If FLAG_AUTO_APPLY is not set the exp field has no further meaning
-and the difficulty for the treasurecode only depends on the maps difficulty,
-otherwise the exp field has the following meaning:
-If this field is not 0 it is passed as the difficulty
-to the treasure generation code to determine how good, how much
-worth a treasure is or what bonuses it is given by the treasure code.
-If this field is not set or 0 the difficulty of the map is passed to the treasure
-generation code.
-=item I<randomitems> <treasurelist>
-The treasurelist to use to generate the treasure which is put in the
-treasure objects inventory.
-=back
-=head3 B<POTION> - type 5 - Potions for drinking and other nastynesses
-These objects contain a spell and will emit it on apply, which most
-of the time has the meaning of 'drinking'.
-If no resistancy field, stat field or attacktype is set and no spell
-is put in the potion by the sp field or the randomitems the
-potion will become an artifact and the artifact code decides which kind
-of potion will be generated.
-If the potion has FLAG_CURSED or FLAG_DAMNED set the usage of this potion
-will yield an explosion and hurt the player.
-=over 4
-=item I<Str>, I<Dex>, I<Con>, I<Int>, I<Wis>, I<Cha>, I<Pow> <number>
-These stat fields determine how many stat points the player gets
-when he applies this potion.
-If FLAG_CURSED or FLAG_DAMNED is set the player will loose that many stat points.
-=item I<sp> <number>
-If this field is set and the randomitems field is not set
-the field is interpreted as spell number, please look the right
-number up in common/loader.C.
-If this field is set the randomitems field will be unset by the
-map loading code.
-=item I<attacktype> <attacktype>
-This field has some special meaning in potions, currently the
-bits for AT_DEPLETE and AT_GODPOWER control whethere this is a
-restoration potion or improvement potion.
-See include/attackinc.h for the bits of these types.
-If AT_DEPLETE is set the player will be restored and the ARCH_DEPLETION
-will be removed from him. If the potion has FLAG_CURSED or FLAG_DAMNED
-set the player will be drained a random stat by inserting an ARCH_DEPLETION
-into him.
-If AT_GODPOWER is enabled the player will gain +1 maxvalue in his hp, sp or grace stat.
-When the potion has FLAG_CURSED or FLAG_DAMNED set he will loose one in one of these stats.
-=item I<resist_RESISTANCY> <number>
-If this stat is set and no spell is in the potion the potion
-will create a force that give the player this specific resistancy.
-The forces type will be changed to POTION_EFFECT (see POTION_EFFECT type below)
-and the potion will last 10 times longer than the default force archetype
-FORCE_NAME (at the moment of this writing spell/force.arc).
-=item I<randomitems> <treasurelist>
-The inventory/spell of the potion will be created by calling the treasure code
-with the treasurelist specified here. (I guess it's highly undefined what
-happens if there is not a spell in the potions inventory).
-=item I<on_use_yield> <archetype>
-When this object is applied an instance of <archetype> will be created.
-=item I<subtypes> <potion subtype>
-see include/spells.h for possible potion subtypes, there are currently 4:
-=over 4
-=item POT_SPELL
-Unused, default behaiour of a potion.
-=item POT_DUST
-This potion can be thrown to cast the spell that it has in it's inventory,
-the behaviour is not defined if there is not a B<SPELL> in the inventory and the
-server will log an error.
-=item POT_FIGURINE
-Unused, default behaiour of a potion.
-=item POT_BALM
-Unused, default behaiour of a potion.
-=back
-=back
-=head3 B<FOOD> - type 6 - Eatable stuff
-This is for objects that are representing general eatables like
-beef or bread.
-The main difference between B<FOOD>, B<FLESH> and B<DRINK> is that they
-give different messages.
-The specialty of B<FLESH> is that it inherits the resistancies of the
-monsters it was generated in and will let dragons raise their resistancies
-with that. If the monster has the B<POISON> attacktype the B<FLESH>
-will change into B<POISON>.
-If a player runs low on food he will grab for B<FOOD>, B<DRINK> and B<POISON>
-and if he doesn't find any of that he will start eating B<FLESH>.
-=over 4
-=item I<title> <string>
-If the food has B<title> set or is cursed it is considered 'special', which
-means that the fields I<Str>, I<Dex>, I<Con>, I<Int>, I<Wis>, I<Pow>,
-I<resist_RESISTANCY>, I<hp> and I<sp> are interpreted and have further effects
-on the player.
-The higher the I<food> field is the longer the improvement of the player lasts
-(except for I<hp> and I<sp>).
-=item I<food> <number>
-This is the amount of food points the player gets when he eats this.
-=item I<on_use_yield> <archetype>
-When this object is applied an instance of <archetype> will be created.
-=back
-=head3 B<POISON> - type 7 - Poisonous stuff
-This type is for objects that can poison the player when he drinks/applies it.
-When applied it will hit the attacked with AT_POISON and will create
-a B<POISONING> object in the one who was hit.
-=over 4
-=item I<level> <number>
-This field affects the probability of poisoning. The higher the level difference
-between the one who is hit and the poision the more probable it is the attacked
-one will be poisoned.
-=item I<slaying> <race>
-This field has the usual meaning of 'slaying', when the
-poisoned's race matches the I<slaying> field the damage done by the poison
-is multiplied by 3.
-=item I<hp> <number>
-This is the amount of damage the player will receive from applying this.  The
-attacktype AT_POISON will be used to hit the player and the damage will
-determine the strenght, duration and depletion of stats of the poisoning.  The
-created B<POISONING> object which is being placed in the one who was attacked will
-get the damage from this field (which is maybe adjusted by slaying or the
-resistancies).
-=item I<food> <number>
-1/4 of <number> will be drained from the players I<food>.
-=item I<on_use_yield> <archetype>
-When this object is applied an instance of <archetype> will be created.
-=back
-=head3 B<BOOK> - type 8 - Readable books
-This type is basically for representing text books in the game.
-Reading a book also identifys it (if FLAG_NO_SKILL_IDENT is not set).
-=over 4
-=item I<msg> <text>
-This is the contents of the book. When this field is unset
-at treasure generation a random text will be inserted.
-=item I<skill> <skill name>
-The skill required to read this book. (The most resonable
-skill would be literacy).
-=item I<exp> <number>
-The experience points the player get for reading this book.
-=item I<subtype> <readable subtype>
-This field determines the type of the readable.
-Please see common/readable.C in the readable_message_types table.
-=back
-=head3 B<CLOCK> - type 9 - Clocks
-This type of objects just display the time when being applied.
-=head3 B<LIGHTNING> - type 12 - Lightnings (DEPRECATED: see B<SPELL_EFFECT> subtype SP_BOLT)
-This is a spell effect of a moving bolt. It moves straigt forward
-through the map until something blocks it.
-If FLAG_REFLECTING is set it even reflects on walls.
-FLAG_IS_TURNABLE should be set on these objects.
-=over 4
-=item I<move_type> <movetype>
-This field affects the move type with which the lightning moves through
-the map and which map cells will reflect or block it.
-=item I<attacktype> <attacktype>
-The attacktype with which it hits the objects on the map.
-=item I<dam> <number>
-The damage this bolt inflicts when it hits objects on the map.
-=item I<Dex> <number>
-This is the fork percentage, it is reduced by 10 per fork.
-And the I<dam> field is halved on each fork.
-=item I<Con> (internal)
-This value is a percentage of which the forking lightning
-is deflected to the left. This value should be mostly used internally.
-=item I<duration> <number>
-The duration the bolt stays on a map cell. This field is decreased each time
-the object is processed (see the meaning of I<speed> and I<speed_left> fields in
-the generic object field description).
-=item I<range> <number>
-This is the range of the bolt, each space it advances this field is decreased.
-=back
-=head3 B<ARROW> - type 13 - Arrows
-This is the type for objects that represent projectiles like arrows.
-The movement of B<THROWN_OBJ>s behave similar to this type.
-Flying arrows are stopped either when they hit something blocking
-(I<move_block>) or something which is alive.
-If it hits something that is alive, which doesn't have FLAG_REFL_MISSILE
-set, it will inflict damage. If FLAG_REFL_MISSILE is set it will inflict
-damage with a small chance which is affected by the I<level> field of the arrow.
-If FLAG_REFLECTING is set on the arrow it will bounce off everything
-that is not alive and blocks it's movement.
-When an arrow is being shot it's I<dam>, I<wc>, I<attacktype>, I<slaying>
-fields will be saved in the I<sp>, I<hp>, I<grace> and I<spellarg> fields of
-the object, to restore them once the arrow has been stopped.
-=over 4
-=item I<dam> <number>
-The amount of damage that is being done to the victim that gets hit.
-This field is recomputed when the arrow is fired and will consist
-of the sum of a damage bonus (see description of the B<BOW> type),
-the arrows I<dam> field, the bows I<dam> field, the bows I<magic> field
-and the arrows I<magic> field.
-=item I<wc> <number>
-The weapon class of the arrow, which has effect on the probability of hitting.
-It is recomputed when the arrow is being fired by this formula:
-  wc = 20 - bow->magic - arrow->magic - (skill->level or shooter->level)
-          - dex_bonus - thaco_bonus - arrow->stats.wc - bow->stats.wc + wc_mod
-When the arrow is not being shot by an player dex_bonus and thaco_bonus and the
-level is not added.
-wc_mod is dependend on the fire mode of the bow.  For a more detailed
-explanation of dex_bonus, thaco_bonus and wc_mod please consult the code.
-=item I<magic> <number>
-This field is added to the damage of the arrow when it is shot and
-will also improve it's I<speed> by 1/5 of it's value.
-=item I<attacktype> <attacktype>
-Bitfield which decides the attacktype of the damage, see include/attackinc.h
-On fireing the I<attacktype> of the bow is added to the arrows I<attacktype>.
-=item I<level> <number> (interally used)
-The level of the arrow, this affects the probability of piercing FLAG_REFL_MISSILE,
-see above in the B<ARROW> description.
-The I<level> is set when the arrow is fired to either the skill level or the
-shooters level.
-=item I<speed> <number> (internal)
-This field shouldn't be set directly in the archetype, the arrow will get it's
-I<speed> from the bow.  This fields value has to be at least 0.5 or otherwise the
-arrow will be stopped immediatly.
-On fireing the I<speed> of the arrow is computed of 1/5 of the
-sum of the damage bonus (see BOW), bow I<magic> and arrow I<magic>. After that 1/7
-of the bows I<dam> field is added to the I<speed> of the arrow.
-The minimum I<speed> of an arrow is 1.0.
-While flying the arrows I<speed> is decreased by 0.05 each time it's moved.
-If the I<speed> is above 10.0 it goes straight through the creature it hits and
-it's I<speed> is reduced by 1. If the I<speed> is lower or equal 10.0 the arrow is
-stopped and either sticked into the victim (see I<weight> field description) or
-put on it's map square (if it didn't break, see description of the I<food> field).
-=item I<weight> <number>
-This field is the weight of the arrow, if I<weight> is below or equal 5000 (5 kg)
-the arrow will stick in the victim it hits. Otherwise it will fall to the ground.
-=item I<food> <number>
-The breaking percentage. 100 (%) means: breaks on usage for sure.
-=item I<inventory> (internal)
-If the flying/moving object has something in it's inventory and it stops, it
-will be replaced with it's inventory. Otherwise it will be handled as usual,
-which means: it will be calculated whether the arrow breaks and it will be
-reset for reuse.
-=item I<slaying> <string>
-When the bow that fires this arrow has it's I<slaying> field set it is copied
-to the arrows I<slaying> field. Otherwise the arrows I<slaying> field remains.
-=item I<move_type> <movetype> (internally used)
-This field is set when the arrow is shot to MOVE_FLY_LOW.
-=item I<move_on> <movetype> (internally used)
-This field is set when the arrow is shot to MOVE_FLY_LOW and MOVE_WALK.
-=item I<race> <string>
-The I<race> field is a unique key that assigns arrows, bows and quivers. When
-shooting an arrow the bows I<race> is used to search for arrows (which have the
-same I<race> as the bow) in the players inventory and will recursively search in
-the containers (which are applied and have the same I<race> as the bow and the arrow).
-=back
-=head3 B<BOW> - type 14 - Bows, those that fire B<ARROW>s
-TODO, but take into account B<ARROW> description above!
-=head3 B<WEAPON> - type 15 - Weapons
-This type is for general hack and slash weapons like swords, maces
-and daggers and and ....
-=over 4
-=item I<weapontype> <type id>
-decides what attackmessages are generated, see include/define.h
-=item I<attacktype> <bitmask>
-bitfield which decides the attacktype of the damage, see include/attackinc.h
-=item I<dam> <number>
-amount of damage being done with the attacktype
-=item I<item_power> <level>
-the itempower of this weapon.
-=item I<name>
-the name of the weapon.
-=item I<level> (internal)
-The improvement state of the weapon.
-If this field is greater than 0 the I<name> field starts with the
-characters name who improved this weapon.
-=item I<last_eat> (internal)
-This seems to be the amount of improvements of a weapon,
-the formular for equipping a weapon seems to be (server/apply.C:check_weapon_power):
-  ((who->level / 5) + 5) >= op->last_eat
-=item I<last_sp>
-the weapon speed (see magic description)
-=item I<food> <number>
-addition to food regeneration of the player
-=item I<hp> <number>
-addition to health regeneration
-=item I<sp> <number>
-addition to mana regeneration
-=item I<grace> <number>
-addititon to grace regeneration
-=item I<gen_sp_armour> <number>
-the players I<gen_sp_armour> field (which is per default 10) is being added the
-<number> amount.  gen_sp_armour seems to be a factor with which gen_sp in
-do_some_living() is multiplied:  gen_sp *= 10/<number> meaning: values > 10 of
-I<gen_sp_armour> limits the amout of regenerated spellpoints.
-Generally this field on weapons is in ranges of 1-30 and decides the slowdown of the
-I<sp> regeneration.
-=item I<body_BODYSLOT>
-The part/slot of the body you need to use this weapon, possible values for
-C<BODYSLOT> should be looked up in common/item.C at body_locations.
-The value (in the range C<-7..7>) gives the number of those body slots
-used up by the item (if negative) or the number of body slots this object
-has (if positive, e.g. for monsters or players). The special value C<0>
-indicates that this object cannot equip items requiring these body slots.
-=item I<resist_RESISTANCY> <number>
-this is the factor with which the difference of the players resistancy and 100%
-is multiplied, something like this:
-   additional_resistancy = (100 - current_resistancy) * (<number>/100)
-if <number> is negative it is added to the total vulnerabilities,
-and later the total resistance is decided by:
-  'total resistance = total protections - total vulnerabilities'
-see also common/living.C:fix_player.
-=item I<path_(attuned|repelled|denied)>
-this field modifies the pathes the player is attuned to, see include/spells.h PATH_*
-for the pathes.
-=item I<luck> <number>
-this luck is added to the players I<luck>
-=item I<move_type>
-if the weapon has a I<move_type> set the player inherits it's I<move_type>
-=item I<exp> <number>
-the added_speed and bonus_speed of the player is raised by <number>/3.
-if <number> < 0 then the added_speed is decreased by <number>
-=item I<weight>
-the weight of the weapon
-=item I<magic>
-the I<magic> field affects the amounts of the following fields:
-  - wc : the players wc is adjusted by: player->wc -= (wc + magic)
-  - ac : the players ac is lowered by (ac + magic) if (player->ac + magic) > 0
-  - dam: the players dam is adjusted by: player->dam += (dam + magic)
-  - weapon speed (last_sp): weapon_speed is calculated by: (last_sp * 2 - magic) / 2
-                            (minium is 0)
-=item I<ac> <number>
-the amount of ac points the player's I<ac> is decreased when applying this object.
-=item I<wc> <number>
-the amount of wc points the player's I<wc> is decreased when applying this object.
-=back
-=head4 Player inherits following flags from weapons:
-   FLAG_LIFESAVE
-   FLAG_REFL_SPELL
-   FLAG_REFL_MISSILE
-   FLAG_STEALTH
-   FLAG_XRAYS
-   FLAG_BLIND
-   FLAG_SEE_IN_DARK
-   FLAG_UNDEAD
-=head3 B<GRIMREAPER> - type 28 - Grimreapers
-These type are mostly used for monsters, they give the
-monster the ability to dissapear after 10 hits with AT_DRAIN.
-=over 4
-=item I<value> <number>
-This field stores the hits the monster did yet.
-=back
-=head3 B<CREATOR> - type 42 - Object creators
-Once a creator is activated by a connection it creates a number of objects
-(cloned from it's inventory or a new object derived from the archetype
-named in the other_arch slot).
-If FLAG_LIVESAFE is set the number of uses is unlimited.
-=over 4
-=item I<hp> <number>
-If FLAG_LIVE_SAVE is not set it is the absolute number of times the creator can
-be used.
-=item I<speed> <number>
-If I<speed> is set the creator will create an object periodically,
-see I<speed> and I<speed_left> fields in the general object field description
-for more details.
-=item I<slaying> <string>
-If set the generated object's name and title will be set to this.
-=item I<other_arch> <string>
-If the inventory of the creator is empty new objects will be derived from the
-archetype named by <string>.
-=item I<connected> <number>
-See generic object field description.
-=back
-=head3 B<DRINK> - type 54 - Drinkable stuff
-See B<FOOD> description.
-=head3 B<CHECK_INV> - type 64 - Inventory checkers
-This object checks whether the player has a specific item in his
-inventory when he moves above the inventory checker. If the player has
-the item (or not, which can be controlled with a flag) a connection will be triggered.
-If you set I<move_block> you can deny players and monsters to reach the space where
-the inventory checker is on, see I<move_block> description below.
-The conditions specified by I<hp>, I<slaying> and I<race> are OR concationated.
-So matching one of those conditions is enough.
-=over 4
-=item I<move_block> <move type bitmask>
-If you set this field to block a movetype the move code will block any moves
-onto the space with the inventory checker, IF the moving object doesn't have
-(or has - if I<last_sp> = 0) the item that the checker is searching for.
-=item I<last_sp> (0|1)
-If I<last_sp> is 1 'having' the item that is being checked for will
-activate the connection or make the space with the checker non-blocking.
-If I<last_sp> is 0 'not having' the item will activate the connection
-or make the space with the checker non-blocking.
-=item I<last_heal> (0|1)
-If I<last_heal> is 1 the matching item will be removed if the inventory checker
-activates a connection and finds the item in the inventory.
-(A inventory checker that blocks a space won't remove anything from inventories)
-=item I<hp> <number>
-If this field is not 0 the inventory checker will search for an object
-with the type id <number>.
-=item I<slaying> <string>
-If this field is set the inventory checker will search for an object that
-has the same string in the I<slaying> field (for example a key string of a key).
-=item I<race> <string>
-If this field is set the inventory checker will search for an object which
-has the archetype name that matches <string>.
-=item I<connected> <connection id>
-This is the connection that will be activated. The connection is
-'pushed' when someone enters the space with the inventory checker,
-and it is 'released' when he leaves it.
-See also the description of the I<connected> field in the generic object field
-section.
-=back
 =head3 B<FLESH> - type 72 - Organs and body parts
 See B<FOOD> description.
 =head3 B<MISC_OBJECT> - type 79 - Misc. objects

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Comparing deliantra/server/pod/objects.pod (file contents): Revision 1.24 by root, Sat May 19 00:11:11 2007 UTC vs. Revision 1.29 by root, Thu Dec 4 03:48:19 2008 UTC

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Comparing deliantra/server/pod/objects.pod (file contents):
Revision 1.24 by root, Sat May 19 00:11:11 2007 UTC vs.
Revision 1.29 by root, Thu Dec 4 03:48:19 2008 UTC