Package net.demilich.metastone.game.spells

Class SetAttackSpell

java.lang.Object

net.demilich.metastone.game.spells.Spell

net.demilich.metastone.game.spells.SetAttackSpell

All Implemented Interfaces:

Serializable, HasDesc<SpellDesc>

public class SetAttackSpell
extends Spell

Sets the target's attack-related attributes such that the result of Actor.getAttack() or Card.getAttack() is equal to the SpellArg.VALUE.

When SpellArg.EXCLUSIVE is true (default), temporary and conditional attack bonuses are removed. This means that minions with conditional attack bonuses like Tar Creeper (+2 Attack during the opponent's turn) will be lost by this effect.

When SpellArg.EXCLUSIVE is false, the Attribute.BASE_ATTACK of the target is changed. This makes it immune to silencing. This may be an appropriate way to implement a Jade Golem effect of increasing base stats, but is not currently used anywhere.

The Attribute.ATTACK_BONUS of the target is always removed.

For example, to create a one-one copy of all friendly minions, SetAttackSpell is commonly used with SetHpSpell:

     {
         "class": "SummonSpell",
         "target": "FRIENDLY_MINIONS",
         "spell": {
             "class": "MetaSpell",
             "target": "OUTPUT",
             "spells": [
                  {
                      "class": "SetAttackSpell",
                      "value": 1
                  },
                  {
                      "class": "SetHpSpell",
                      "value": 1
                  }
             ]
         }
     }
 

To set a target's attack to its current health:

     {
         "class": "SetAttackSpell",
         "value": {
             "class": "AttributeValueProvider",
             "attribute": "HP"
         }
     }
 

To implement "Enrage: +2 Attack", do not use SetAttackSpell.

See Also:

• for the corresponding effect for hitpoints.
• to make a temporary attack bonus.
• to add a permanent attack bonus.
• to implement Enrage effects related to attack bonuses.
• to enforce a Lightspawn-like effect where the minion's attack always equals its hitpoints after damage effects have been resolved.
• Serialized Form

Constructor Summary

Constructors

Constructor	Description
SetAttackSpell()

Method Summary

Modifier and Type	Method	Description
static SpellDesc	create(int value)
static SpellDesc	create(int value, boolean immuneToSilence)
protected void	onCast(GameContext context, Player player, SpellDesc desc, Entity source, Entity target)	Implementations of onCast are the meat-and-bones of a spell's effects.

Methods inherited from class net.demilich.metastone.game.spells.Spell

cast, castForPlayer, checkArguments, getDesc, isNativeStateful, setDesc, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

SetAttackSpell

public SetAttackSpell()

Method Details

create

public static SpellDesc create(int value)

create

public static SpellDesc create(int value,
 boolean immuneToSilence)

onCast

protected void onCast(GameContext context,
 Player player,
 SpellDesc desc,
 Entity source,
 Entity target)

Description copied from class: Spell

Implementations of onCast are the meat-and-bones of a spell's effects. This should actually call a variety of methods in GameLogic, generate cards using SpellUtils.getCards(GameContext, Player, Entity, Entity, SpellDesc), interpret SpellArg keys in the desc, etc.

Observe that subclasses of Spell mostly just need to implement this function. Also, observe that instances of Spell are stateless: all the state is provided as arguments to this function.

Specified by:

onCast in class Spell

Parameters:

context - The game context

player - The casting player

desc - The collection of SpellArg keys and values that are interpreted by the implementation of this function to actually cause effects in a game

source - The entity from which this effect is happening (typically a card or a minion if it's a battlecry).

target - The particular target of this invocation of the spell. When a spell hits multiple targets, like an AoE damage effect, this method is called once for each target in the list of targets.

See Also:

• for an example of a complex spell implementation.