Package net.pottercraft.ollivanders2.spell

Class Knockback

java.lang.Object

net.pottercraft.ollivanders2.spell.O2Spell

net.pottercraft.ollivanders2.spell.Knockback

Direct Known Subclasses:

ACCIO, ALARTE_ASCENDARE, ARANIA_EXUMAI, ASCENDIO, CARPE_RETRACTUM, DEPULSO, FLIPENDO

public abstract class Knockback
extends O2Spell

Abstract base class for spells with knockback effects (push/pull, vertical/horizontal).

Provides common functionality for calculating and applying velocity to entities. Subclasses must implement canTarget(Entity) to determine valid targets. The spell finds the nearest valid entity at the projectile location, calculates the appropriate velocity based on distance and drag factors, and applies it to the target.

Field Summary

Fields

Modifier and Type	Field	Description
protected double	maxDistance	The maximum distance we can move things
protected int	maxTargets	The maximum number of targets
protected double	minDistance	The minimum distance we can move things
protected int	strengthReducer	This reduces how strong the knockback is.
protected org.bukkit.util.Vector	velocity	The velocity this knockback will add to the target

Fields inherited from class net.pottercraft.ollivanders2.spell.O2Spell

branch, cooldownMessage, defaultRadius, flavorText, isAllowedFailureMessage, location, maxProjectileDistance, maxSpellLifetime, noProjectile, player, rightWand, spellMasteryLevel, spellType, text, usesModifier, vector

Constructor Summary

Constructors

Constructor	Description
Knockback(@NotNull Ollivanders2 plugin, @NotNull org.bukkit.entity.Player player, @NotNull Double rightWand)	Constructor.
Knockback(Ollivanders2 plugin)	Default constructor for use in generating spell text.

Method Summary

Modifier and Type	Method	Description
protected void	doCheckEffect()	Finds an entity at the projectile location and applies velocity to it.
double	getMaxDistance()	Get the maximum distance for knockback.
double	getMaxRadius()	Get the maximum radius
int	getMaxTargets()	Get the maximum number of targets
double	getMinDistance()	Get the minimum distance for knockback.
int	getStrengthReducer()	Get the strength reducer for this spell.
org.bukkit.util.Vector	getVelocity()	Get the velocity for this spell.
boolean	isPull()	Check if this spell pulls toward the caster.
boolean	isTargetsMultiple()	Check if this spell can target multiple entities.
boolean	isTargetsSelf()	Check if this spell targets the caster.
boolean	isVertical()	Check if this spell applies vertical knockback.

Methods inherited from class net.pottercraft.ollivanders2.spell.O2Spell

checkEffect, getCloseEntities, getCoolDown, getFailureMessage, getFlavorText, getLevel, getLifeTicks, getMagicBranch, getName, getNearbyDamageableEntities, getNearbyItems, getNearbyLivingEntities, getNearbyPlayers, getSuccessMessage, getTargetBlock, getText, getWorldGuardFlags, hasHitTarget, isAtMaxDistance, isKilled, isSpellAllowed, kill, move, revert, sendFailureMessage, sendSuccessMessage, setUsesModifier

Methods inherited from class java.lang.Object

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

Field Details

strengthReducer

protected int strengthReducer

This reduces how strong the knockback is. 1 is max strength, any number higher than one will reduce the strength.

minDistance

protected double minDistance

The minimum distance we can move things

maxDistance

protected double maxDistance

The maximum distance we can move things

maxTargets

protected int maxTargets

The maximum number of targets

velocity

protected org.bukkit.util.Vector velocity

The velocity this knockback will add to the target

Constructor Details

Knockback

public Knockback(Ollivanders2 plugin)

Default constructor for use in generating spell text. Do not use to cast the spell.

Parameters:

plugin - the Ollivanders2 plugin

Knockback

public Knockback(@NotNull
 @NotNull Ollivanders2 plugin,
 @NotNull
 @NotNull org.bukkit.entity.Player player,
 @NotNull
 @NotNull Double rightWand)

Constructor.

Parameters:

plugin - a callback to the MC plugin

player - the player who cast this spell

rightWand - which wand the player was using

Method Details

doCheckEffect

protected void doCheckEffect()

Finds an entity at the projectile location and applies velocity to it.

Searches for a valid target entity near the projectile, calculates the appropriate velocity based on the caster's skill level, and applies the velocity to the target. For vertical spells targeting entities underwater, the distance is capped to prevent launching them out of water at unrealistic speeds.

Specified by:

doCheckEffect in class O2Spell

getVelocity

public org.bukkit.util.Vector getVelocity()

Get the velocity for this spell.

Returns:

the velocity this spell will add to the target entity

isPull

public boolean isPull()

Check if this spell pulls toward the caster.

Returns:

true if the spell pulls, false if it pushes

isVertical

public boolean isVertical()

Check if this spell applies vertical knockback.

Returns:

true if the knockback is vertical (Y-axis), false if horizontal

isTargetsSelf

public boolean isTargetsSelf()

Check if this spell targets the caster.

Returns:

true if the spell affects the caster, false if it targets other entities

isTargetsMultiple

public boolean isTargetsMultiple()

Check if this spell can target multiple entities.

Returns:

true if it can target multiple, false otherwise

getStrengthReducer

public int getStrengthReducer()

Get the strength reducer for this spell.

Returns:

the strength reducer value (higher values reduce knockback strength)

getMinDistance

public double getMinDistance()

Get the minimum distance for knockback.

Returns:

the minimum distance

getMaxDistance

public double getMaxDistance()

Get the maximum distance for knockback.

Returns:

the maximum distance

getMaxRadius

public double getMaxRadius()

Get the maximum radius

Returns:

the max radius

getMaxTargets

public int getMaxTargets()

Get the maximum number of targets

Returns:

the max targets