Added targeted.EntitySilenceSpell

This spell controls the "silent" flag on living entities which may suppress sounds they usually make.
There is an option called target-state which accepts a target boolean state and defaults to toggle.

Added targeted.SlimeSizeSpell
This spell is for changing the size of slimes.
It accepts an option called size which accepts a variable mod format (operation along with integer or variable name)
It accepts an option called min-size which accepts an integer and the minimum allowed value is 0. This is the minimum value to set a slime to.
It accepts an integer called max-size which defaults to 20 and is the maximum size a slime may be set to. If the maximum size is smaller than the minimum size, it is set to be equal to the minimum size.

Author: TheComputerGeek2

src/com/nisovin/magicspells/spells/targeted/EntitySilenceSpell.java

@@ -0,0 +1,45 @@
+package com.nisovin.magicspells.spells.targeted;
+
+import com.nisovin.magicspells.spells.TargetedEntitySpell;
+import com.nisovin.magicspells.spells.TargetedSpell;
+import com.nisovin.magicspells.util.MagicConfig;
+import com.nisovin.magicspells.util.TargetBooleanState;
+import com.nisovin.magicspells.util.TargetInfo;
+import org.bukkit.entity.LivingEntity;
+import org.bukkit.entity.Player;
+
+public class EntitySilenceSpell extends TargetedSpell implements TargetedEntitySpell {
+	
+	private TargetBooleanState targetBooleanState;
+	
+	public EntitySilenceSpell(MagicConfig config, String spellName) {
+		super(config, spellName);
+		
+		this.targetBooleanState = TargetBooleanState.getFromName(getConfigString("target-state", "toggle"));
+	}
+	
+	@Override
+	public PostCastAction castSpell(Player player, SpellCastState state, float power, String[] args) {
+		if (state == SpellCastState.NORMAL) {
+			TargetInfo<LivingEntity> targetInfo = getTargetedEntity(player, power);
+			if (targetInfo == null) return noTarget(player);
+			LivingEntity target = targetInfo.getTarget();
+			if (target == null) return noTarget(player);
+			target.setSilent(targetBooleanState.getBooleanState(target.isSilent()));
+		}
+		return PostCastAction.HANDLE_NORMALLY;
+	}
+	
+	@Override
+	public boolean castAtEntity(Player caster, LivingEntity target, float power) {
+		target.setSilent(targetBooleanState.getBooleanState(target.isSilent()));
+		return true;
+	}
+	
+	@Override
+	public boolean castAtEntity(LivingEntity target, float power) {
+		target.setSilent(targetBooleanState.getBooleanState(target.isSilent()));
+		return true;
+	}
+	
+}

src/com/nisovin/magicspells/spells/targeted/SlimeSizeSpell.java

@@ -0,0 +1,72 @@
+package com.nisovin.magicspells.spells.targeted;
+
+import com.nisovin.magicspells.spells.TargetedEntitySpell;
+import com.nisovin.magicspells.spells.TargetedSpell;
+import com.nisovin.magicspells.util.MagicConfig;
+import com.nisovin.magicspells.util.TargetInfo;
+import com.nisovin.magicspells.util.Util;
+import com.nisovin.magicspells.util.VariableMod;
+import org.bukkit.entity.LivingEntity;
+import org.bukkit.entity.Player;
+import org.bukkit.entity.Slime;
+
+public class SlimeSizeSpell extends TargetedSpell implements TargetedEntitySpell {
+	
+	private VariableMod variableMod;
+	private int minSize;
+	private int maxSize;
+	
+	private static ValidTargetChecker isSlimeChecker = (LivingEntity entity) -> entity instanceof Slime;
+	
+	public SlimeSizeSpell(MagicConfig config, String spellName) {
+		super(config, spellName);
+		
+		variableMod = new VariableMod(getConfigString("size", "=5"));
+		
+		minSize = getConfigInt("min-size", 0);
+		
+		// Just a little safety check
+		if (minSize < 0) minSize = 0;
+		
+		maxSize = getConfigInt("max-size", 20);
+		
+		// Little sanity check
+		if (maxSize < minSize) maxSize = minSize;
+	}
+	
+	@Override
+	public PostCastAction castSpell(Player player, SpellCastState state, float power, String[] args) {
+		if (state == SpellCastState.NORMAL) {
+			TargetInfo<LivingEntity> targetInfo = getTargetedEntity(player, power);
+			if (targetInfo == null) return noTarget(player);
+			LivingEntity targetEntity = targetInfo.getTarget();
+			if (!(targetEntity instanceof Slime)) return noTarget(player);
+			Slime slime = (Slime) targetEntity;
+			double rawOutputValue = variableMod.getValue(player, null, slime.getSize());
+			int finalSize = Util.clampValue(minSize, maxSize, (int)rawOutputValue);
+			slime.setSize(finalSize);
+		}
+		return PostCastAction.HANDLE_NORMALLY;
+	}
+	
+	@Override
+	public ValidTargetChecker getValidTargetChecker() {
+		return isSlimeChecker;
+	}
+	
+	@Override
+	public boolean castAtEntity(Player caster, LivingEntity target, float power) {
+		if (!(target instanceof Slime)) return false;
+		Slime slime = (Slime) target;
+		double rawOutputValue = variableMod.getValue(caster, null, slime.getSize());
+		int finalSize = Util.clampValue(minSize, maxSize, (int)rawOutputValue);
+		slime.setSize(finalSize);
+		return true;
+	}
+	
+	@Override
+	public boolean castAtEntity(LivingEntity target, float power) {
+		return castAtEntity(null, target, power);
+	}
+	
+}

src/com/nisovin/magicspells/util/Util.java

@@ -769,4 +769,11 @@ public static void forEachPlayerOnline(Consumer<? super Player> consumer) {
 		forEachOrdered(Bukkit.getOnlinePlayers(), consumer);
 	}
 
+	public static int clampValue(int min, int max, int value) {
+		if (value < min) return min;
+		if (value > max) return max;
+		return value;
+	}
+	
+	
 }