Tweaks to the random chance classes

src/main/java/com/gmail/nossr50/skills/axes/AxesManager.java

@@ -17,6 +17,7 @@ import org.bukkit.entity.LivingEntity;
 import org.bukkit.entity.Player;
 import org.bukkit.event.entity.EntityDamageEvent.DamageModifier;
 import org.bukkit.inventory.ItemStack;
+import org.jetbrains.annotations.NotNull;
 
 import java.util.Map;
 
@@ -32,28 +33,28 @@ public class AxesManager extends SkillManager {
         return Permissions.isSubSkillEnabled(getPlayer(), SubSkillType.AXES_AXE_MASTERY);
     }
 
-    public boolean canCriticalHit(LivingEntity target) {
+    public boolean canCriticalHit(@NotNull LivingEntity target) {
         if(!RankUtils.hasUnlockedSubskill(getPlayer(), SubSkillType.AXES_CRITICAL_STRIKES))
             return false;
 
         return target.isValid() && Permissions.isSubSkillEnabled(getPlayer(), SubSkillType.AXES_CRITICAL_STRIKES);
     }
 
-    public boolean canImpact(LivingEntity target) {
+    public boolean canImpact(@NotNull LivingEntity target) {
         if(!RankUtils.hasUnlockedSubskill(getPlayer(), SubSkillType.AXES_ARMOR_IMPACT))
             return false;
 
         return target.isValid() && Permissions.isSubSkillEnabled(getPlayer(), SubSkillType.AXES_ARMOR_IMPACT) && Axes.hasArmor(target);
     }
 
-    public boolean canGreaterImpact(LivingEntity target) {
+    public boolean canGreaterImpact(@NotNull LivingEntity target) {
         if(!RankUtils.hasUnlockedSubskill(getPlayer(), SubSkillType.AXES_GREATER_IMPACT))
             return false;
 
         return target.isValid() && Permissions.isSubSkillEnabled(getPlayer(), SubSkillType.AXES_GREATER_IMPACT) && !Axes.hasArmor(target);
     }
 
-    public boolean canUseSkullSplitter(LivingEntity target) {
+    public boolean canUseSkullSplitter(@NotNull LivingEntity target) {
         if(!RankUtils.hasUnlockedSubskill(getPlayer(), SubSkillType.AXES_SKULL_SPLITTER))
             return false;
 
@@ -68,7 +69,7 @@ public class AxesManager extends SkillManager {
      * Handle the effects of the Axe Mastery ability
      */
     public double axeMastery() {
-        if (!RandomChanceUtil.isActivationSuccessful(SkillActivationType.ALWAYS_FIRES, SubSkillType.AXES_AXE_MASTERY, getPlayer(), mmoPlayer.getAttackStrength())) {
+        if (!RandomChanceUtil.isActivationSuccessful(SkillActivationType.ALWAYS_FIRES, SubSkillType.AXES_AXE_MASTERY, getPlayer())) {
             return 0;
         }
 
@@ -82,7 +83,7 @@ public class AxesManager extends SkillManager {
      * @param damage The amount of damage initially dealt by the event
      */
     public double criticalHit(LivingEntity target, double damage) {
-        if (!RandomChanceUtil.isActivationSuccessful(SkillActivationType.RANDOM_LINEAR_100_SCALE_WITH_CAP, SubSkillType.AXES_CRITICAL_STRIKES, getPlayer(), mmoPlayer.getAttackStrength())) {
+        if (!RandomChanceUtil.isActivationSuccessful(SkillActivationType.RANDOM_LINEAR_100_SCALE_WITH_CAP, SubSkillType.AXES_CRITICAL_STRIKES, getPlayer())) {
             return 0;
         }
 
@@ -113,12 +114,12 @@ public class AxesManager extends SkillManager {
      *
      * @param target The {@link LivingEntity} being affected by Impact
      */
-    public void impactCheck(LivingEntity target) {
+    public void impactCheck(@NotNull LivingEntity target) {
         double durabilityDamage = getImpactDurabilityDamage();
 
         for (ItemStack armor : target.getEquipment().getArmorContents()) {
             if (armor != null && ItemUtils.isArmor(armor)) {
-                if (RandomChanceUtil.isActivationSuccessful(SkillActivationType.RANDOM_STATIC_CHANCE, SubSkillType.AXES_ARMOR_IMPACT, getPlayer(), mmoPlayer.getAttackStrength())) {
+                if (RandomChanceUtil.isActivationSuccessful(SkillActivationType.RANDOM_STATIC_CHANCE, SubSkillType.AXES_ARMOR_IMPACT, getPlayer())) {
                     SkillUtils.handleDurabilityChange(armor, durabilityDamage, 1);
                 }
             }
@@ -134,9 +135,9 @@ public class AxesManager extends SkillManager {
      *
      * @param target The {@link LivingEntity} being affected by the ability
      */
-    public double greaterImpact(LivingEntity target) {
+    public double greaterImpact(@NotNull LivingEntity target) {
         //static chance (3rd param)
-        if (!RandomChanceUtil.isActivationSuccessful(SkillActivationType.RANDOM_STATIC_CHANCE, SubSkillType.AXES_GREATER_IMPACT, getPlayer(), mmoPlayer.getAttackStrength())) {
+        if (!RandomChanceUtil.isActivationSuccessful(SkillActivationType.RANDOM_STATIC_CHANCE, SubSkillType.AXES_GREATER_IMPACT, getPlayer())) {
             return 0;
         }
 
@@ -166,7 +167,7 @@ public class AxesManager extends SkillManager {
      * @param target The {@link LivingEntity} being affected by the ability
      * @param damage The amount of damage initially dealt by the event
      */
-    public void skullSplitterCheck(LivingEntity target, double damage, Map<DamageModifier, Double> modifiers) {
+    public void skullSplitterCheck(@NotNull LivingEntity target, double damage, Map<DamageModifier, Double> modifiers) {
         CombatUtils.applyAbilityAoE(getPlayer(), target, damage / Axes.skullSplitterModifier, modifiers, skill);
     }
 }

src/main/java/com/gmail/nossr50/skills/swords/SwordsManager.java

@@ -62,7 +62,7 @@ public class SwordsManager extends SkillManager {
      */
     public void ruptureCheck(@NotNull LivingEntity target) throws IllegalStateException {
         if(BleedTimerTask.isBleedOperationAllowed()) {
-            if (RandomChanceUtil.isActivationSuccessful(SkillActivationType.RANDOM_LINEAR_100_SCALE_WITH_CAP, SubSkillType.SWORDS_RUPTURE, getPlayer(), this.mmoPlayer.getAttackStrength())) {
+            if (RandomChanceUtil.isActivationSuccessful(SkillActivationType.RANDOM_LINEAR_100_SCALE_WITH_CAP, SubSkillType.SWORDS_RUPTURE, getPlayer())) {
 
                 if (target instanceof Player) {
                     Player defender = (Player) target;
@@ -98,7 +98,7 @@ public class SwordsManager extends SkillManager {
         return 0;
     }
 
-    public int getToolTier(ItemStack itemStack)
+    public int getToolTier(@NotNull ItemStack itemStack)
     {
         if(ItemUtils.isNetheriteTool(itemStack))
             return 5;
@@ -128,7 +128,7 @@ public class SwordsManager extends SkillManager {
      * @param attacker The {@link LivingEntity} being affected by the ability
      * @param damage The amount of damage initially dealt by the event
      */
-    public void counterAttackChecks(LivingEntity attacker, double damage) {
+    public void counterAttackChecks(@NotNull LivingEntity attacker, double damage) {
         if (RandomChanceUtil.isActivationSuccessful(SkillActivationType.RANDOM_LINEAR_100_SCALE_WITH_CAP, SubSkillType.SWORDS_COUNTER_ATTACK, getPlayer())) {
             CombatUtils.dealDamage(attacker, damage / Swords.counterAttackModifier, getPlayer());
 
@@ -146,7 +146,7 @@ public class SwordsManager extends SkillManager {
      * @param target The {@link LivingEntity} being affected by the ability
      * @param damage The amount of damage initially dealt by the event
      */
-    public void serratedStrikes(LivingEntity target, double damage, Map<DamageModifier, Double> modifiers) {
+    public void serratedStrikes(@NotNull LivingEntity target, double damage, Map<DamageModifier, Double> modifiers) {
         CombatUtils.applyAbilityAoE(getPlayer(), target, damage / Swords.serratedStrikesModifier, modifiers, skill);
     }
 }

src/main/java/com/gmail/nossr50/skills/unarmed/UnarmedManager.java

@@ -25,6 +25,7 @@ import org.bukkit.entity.Item;
 import org.bukkit.entity.LivingEntity;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.ItemStack;
+import org.jetbrains.annotations.NotNull;
 
 public class UnarmedManager extends SkillManager {
 
@@ -70,7 +71,7 @@ public class UnarmedManager extends SkillManager {
         return Permissions.isSubSkillEnabled(getPlayer(), SubSkillType.UNARMED_BLOCK_CRACKER);
     }
 
-    public boolean blockCrackerCheck(BlockState blockState) {
+    public boolean blockCrackerCheck(@NotNull BlockState blockState) {
         if (!RandomChanceUtil.isActivationSuccessful(SkillActivationType.ALWAYS_FIRES, SubSkillType.UNARMED_BLOCK_CRACKER, getPlayer())) {
             return false;
         }
@@ -101,8 +102,8 @@ public class UnarmedManager extends SkillManager {
      *
      * @param defender The defending player
      */
-    public void disarmCheck(Player defender) {
-        if (RandomChanceUtil.isActivationSuccessful(SkillActivationType.RANDOM_LINEAR_100_SCALE_WITH_CAP, SubSkillType.UNARMED_DISARM, getPlayer(), mmoPlayer.getAttackStrength()) && !hasIronGrip(defender)) {
+    public void disarmCheck(@NotNull Player defender) {
+        if (RandomChanceUtil.isActivationSuccessful(SkillActivationType.RANDOM_LINEAR_100_SCALE_WITH_CAP, SubSkillType.UNARMED_DISARM, getPlayer()) && !hasIronGrip(defender)) {
             if (EventUtils.callDisarmEvent(defender).isCancelled()) {
                 return;
             }
@@ -179,7 +180,7 @@ public class UnarmedManager extends SkillManager {
      * @param defender The defending player
      * @return true if the defender was not disarmed, false otherwise
      */
-    private boolean hasIronGrip(Player defender) {
+    private boolean hasIronGrip(@NotNull Player defender) {
         if (!Misc.isNPCEntityExcludingVillagers(defender)
                 && Permissions.isSubSkillEnabled(defender, SubSkillType.UNARMED_IRON_GRIP)
                 && RandomChanceUtil.isActivationSuccessful(SkillActivationType.RANDOM_LINEAR_100_SCALE_WITH_CAP, SubSkillType.UNARMED_IRON_GRIP, defender)) {

src/main/java/com/gmail/nossr50/util/random/RandomChanceExecution.java

@@ -3,6 +3,7 @@ package com.gmail.nossr50.util.random;
 public interface RandomChanceExecution {
     /**
      * Gets the XPos used in the formula for success
+     *
      * @return value of x for our success probability graph
      */
     double getXPos();
@@ -10,6 +11,7 @@ public interface RandomChanceExecution {
     /**
      * The maximum odds for this RandomChanceExecution
      * For example, if this value is 10, then 10% odds would be the maximum and would be achieved only when xPos equaled the LinearCurvePeak
+     *
      * @return maximum probability odds from 0.00 (no chance of ever happened) to 100.0 (probability can be guaranteed)
      */
     double getProbabilityCap();

src/main/java/com/gmail/nossr50/util/random/RandomChanceSkill.java

@@ -7,18 +7,19 @@ import com.gmail.nossr50.datatypes.skills.SubSkillType;
 import com.gmail.nossr50.util.Permissions;
 import com.gmail.nossr50.util.player.UserManager;
 import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 
 public class RandomChanceSkill implements RandomChanceExecution {
 
-    protected final PrimarySkillType primarySkillType;
-    protected final SubSkillType subSkillType;
+    protected final @NotNull PrimarySkillType primarySkillType;
+    protected final @NotNull SubSkillType subSkillType;
     protected final double probabilityCap;
     protected final boolean isLucky;
     protected int skillLevel;
     protected double resultModifier;
 
-    public RandomChanceSkill(Player player, SubSkillType subSkillType, double resultModifier)
-    {
+    public RandomChanceSkill(@Nullable Player player, @NotNull SubSkillType subSkillType, double resultModifier) {
         this.primarySkillType = subSkillType.getParentSkill();
         this.subSkillType = subSkillType;
         this.probabilityCap = RandomChanceUtil.LINEAR_CURVE_VAR;
@@ -30,7 +31,7 @@ public class RandomChanceSkill implements RandomChanceExecution {
             this.skillLevel = 0;
         }
 
-        if(player != null)
+        if (player != null)
             isLucky = Permissions.lucky(player, primarySkillType);
         else
             isLucky = false;
@@ -38,8 +39,7 @@ public class RandomChanceSkill implements RandomChanceExecution {
         this.resultModifier = resultModifier;
     }
 
-    public RandomChanceSkill(Player player, SubSkillType subSkillType)
-    {
+    public RandomChanceSkill(@Nullable Player player, @NotNull SubSkillType subSkillType) {
         this.primarySkillType = subSkillType.getParentSkill();
         this.subSkillType = subSkillType;
         this.probabilityCap = RandomChanceUtil.LINEAR_CURVE_VAR;
@@ -51,7 +51,7 @@ public class RandomChanceSkill implements RandomChanceExecution {
             this.skillLevel = 0;
         }
 
-        if(player != null)
+        if (player != null)
             isLucky = Permissions.lucky(player, primarySkillType);
         else
             isLucky = false;
@@ -59,9 +59,8 @@ public class RandomChanceSkill implements RandomChanceExecution {
         this.resultModifier = 1.0D;
     }
 
-    public RandomChanceSkill(Player player, SubSkillType subSkillType, boolean hasCap)
-    {
-        if(hasCap)
+    public RandomChanceSkill(@Nullable Player player, @NotNull SubSkillType subSkillType, boolean hasCap) {
+        if (hasCap)
             this.probabilityCap = AdvancedConfig.getInstance().getMaximumProbability(subSkillType);
         else
             this.probabilityCap = RandomChanceUtil.LINEAR_CURVE_VAR;
@@ -76,7 +75,7 @@ public class RandomChanceSkill implements RandomChanceExecution {
             this.skillLevel = 0;
         }
 
-        if(player != null)
+        if (player != null)
             isLucky = Permissions.lucky(player, primarySkillType);
         else
             isLucky = false;
@@ -84,9 +83,8 @@ public class RandomChanceSkill implements RandomChanceExecution {
         this.resultModifier = 1.0D;
     }
 
-    public RandomChanceSkill(Player player, SubSkillType subSkillType, boolean hasCap, double resultModifier)
-    {
-        if(hasCap)
+    public RandomChanceSkill(@Nullable Player player, @NotNull SubSkillType subSkillType, boolean hasCap, double resultModifier) {
+        if (hasCap)
             this.probabilityCap = AdvancedConfig.getInstance().getMaximumProbability(subSkillType);
         else
             this.probabilityCap = RandomChanceUtil.LINEAR_CURVE_VAR;
@@ -101,7 +99,7 @@ public class RandomChanceSkill implements RandomChanceExecution {
             this.skillLevel = 0;
         }
 
-        if(player != null)
+        if (player != null)
             isLucky = Permissions.lucky(player, primarySkillType);
         else
             isLucky = false;
@@ -111,23 +109,25 @@ public class RandomChanceSkill implements RandomChanceExecution {
 
     /**
      * The subskill corresponding to this RandomChanceSkill
+     *
      * @return this subskill
      */
-    public SubSkillType getSubSkill() {
+    public @NotNull SubSkillType getSubSkill() {
         return subSkillType;
     }
 
     /**
      * Gets the skill level of the player who owns this RandomChanceSkill
+     *
      * @return the current skill level relating to this RandomChanceSkill
      */
-    public int getSkillLevel()
-    {
+    public int getSkillLevel() {
         return skillLevel;
     }
 
     /**
      * Modify the skill level used for this skill's RNG calculations
+     *
      * @param newSkillLevel new skill level
      */
     public void setSkillLevel(int newSkillLevel) {

src/main/java/com/gmail/nossr50/util/random/RandomChanceSkillStatic.java

@@ -2,19 +2,19 @@ package com.gmail.nossr50.util.random;
 
 import com.gmail.nossr50.datatypes.skills.SubSkillType;
 import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 
 public class RandomChanceSkillStatic extends RandomChanceSkill {
     private final double xPos;
 
-    public RandomChanceSkillStatic(double xPos, Player player, SubSkillType subSkillType)
-    {
+    public RandomChanceSkillStatic(double xPos, @Nullable Player player, @NotNull SubSkillType subSkillType) {
         super(player, subSkillType);
 
         this.xPos = xPos;
     }
 
-    public RandomChanceSkillStatic(double xPos, Player player, SubSkillType subSkillType, double resultModifier)
-    {
+    public RandomChanceSkillStatic(double xPos, @Nullable Player player, @NotNull SubSkillType subSkillType, double resultModifier) {
         super(player, subSkillType, resultModifier);
 
         this.xPos = xPos;

src/main/java/com/gmail/nossr50/util/random/RandomChanceStatic.java

@@ -5,8 +5,7 @@ public class RandomChanceStatic implements RandomChanceExecution {
     private final double probabilityCap;
     private final boolean isLucky;
 
-    public RandomChanceStatic(double xPos, boolean isLucky)
-    {
+    public RandomChanceStatic(double xPos, boolean isLucky) {
         this.xPos = xPos;
         this.probabilityCap = xPos;
         this.isLucky = isLucky;

src/main/java/com/gmail/nossr50/util/random/RandomChanceUtil.java

@@ -10,13 +10,14 @@ import com.gmail.nossr50.util.EventUtils;
 import com.gmail.nossr50.util.Permissions;
 import com.gmail.nossr50.util.skills.SkillActivationType;
 import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 
 import java.text.DecimalFormat;
 import java.util.concurrent.ThreadLocalRandom;
 
-public class RandomChanceUtil
-{
-    public static final DecimalFormat percent = new DecimalFormat("##0.00%");
+public class RandomChanceUtil {
+    public static final @NotNull DecimalFormat percent = new DecimalFormat("##0.00%");
     //public static final DecimalFormat decimal = new DecimalFormat("##0.00");
     public static final double LINEAR_CURVE_VAR = 100.0D;
 
@@ -26,14 +27,12 @@ public class RandomChanceUtil
      * non-RNG skills just fire the cancellable event and succeed if they go uncancelled
      *
      * @param skillActivationType this value represents what kind of activation procedures this sub-skill uses
-     * @param subSkillType The identifier for this specific sub-skill
-     * @param player The owner of this sub-skill
+     * @param subSkillType        The identifier for this specific sub-skill
+     * @param player              The owner of this sub-skill
      * @return returns true if all conditions are met and the event is not cancelled
      */
-    public static boolean isActivationSuccessful(SkillActivationType skillActivationType, SubSkillType subSkillType, Player player)
-    {
-        switch(skillActivationType)
-        {
+    public static boolean isActivationSuccessful(@NotNull SkillActivationType skillActivationType, @NotNull SubSkillType subSkillType, @Nullable Player player) {
+        switch (skillActivationType) {
             case RANDOM_LINEAR_100_SCALE_WITH_CAP:
                 return checkRandomChanceExecutionSuccess(player, subSkillType, true);
             case RANDOM_STATIC_CHANCE:
@@ -46,36 +45,8 @@ public class RandomChanceUtil
         }
     }
 
-    /**
-     * This method is the final step in determining if a Sub-Skill / Secondary Skill in mcMMO successfully activates either from chance or otherwise
-     * Random skills check for success based on numbers and then fire a cancellable event, if that event is not cancelled they succeed
-     * non-RNG skills just fire the cancellable event and succeed if they go uncancelled
-     *
-     * @param skillActivationType this value represents what kind of activation procedures this sub-skill uses
-     * @param subSkillType The identifier for this specific sub-skill
-     * @param player The owner of this sub-skill
-     * @return returns true if all conditions are met and the event is not cancelled
-     */
-    public static boolean isActivationSuccessful(SkillActivationType skillActivationType, SubSkillType subSkillType, Player player, double resultModifier)
-    {
-        switch(skillActivationType)
-        {
-            case RANDOM_LINEAR_100_SCALE_WITH_CAP:
-                return checkRandomChanceExecutionSuccess(player, subSkillType, true);
-            case RANDOM_STATIC_CHANCE:
-                return checkRandomStaticChanceExecutionSuccess(player, subSkillType, resultModifier);
-            case ALWAYS_FIRES:
-                SubSkillEvent event = EventUtils.callSubSkillEvent(player, subSkillType);
-                return !event.isCancelled();
-            default:
-                return false;
-        }
-    }
-
-    public static double getActivationChance(SkillActivationType skillActivationType, SubSkillType subSkillType, Player player)
-    {
-        switch(skillActivationType)
-        {
+    public static double getActivationChance(@NotNull SkillActivationType skillActivationType, @NotNull SubSkillType subSkillType, @Nullable Player player) {
+        switch (skillActivationType) {
             case RANDOM_LINEAR_100_SCALE_WITH_CAP:
                 return getRandomChanceExecutionSuccess(player, subSkillType, true);
             case RANDOM_STATIC_CHANCE:
@@ -87,10 +58,10 @@ public class RandomChanceUtil
 
     /**
      * Checks whether or not the random chance succeeds
+     *
      * @return true if the random chance succeeds
      */
-    public static boolean checkRandomChanceExecutionSuccess(Player player, PrimarySkillType primarySkillType, double chance)
-    {
+    public static boolean checkRandomChanceExecutionSuccess(@NotNull Player player, @NotNull PrimarySkillType primarySkillType, double chance) {
         //Check the odds
         chance *= 100;
 
@@ -113,11 +84,11 @@ public class RandomChanceUtil
 
     /**
      * Used for stuff like Excavation, Fishing, etc...
+     *
      * @param randomChance
      * @return
      */
-    public static boolean checkRandomChanceExecutionSuccess(RandomChanceSkillStatic randomChance, double resultModifier)
-    {
+    public static boolean checkRandomChanceExecutionSuccess(@NotNull RandomChanceSkillStatic randomChance, double resultModifier) {
         double chanceOfSuccess = calculateChanceOfSuccess(randomChance);
 
         //Check the odds
@@ -126,16 +97,15 @@ public class RandomChanceUtil
 
     /**
      * Used for stuff like Excavation, Fishing, etc...
+     *
      * @param randomChance
      * @return
      */
-    public static boolean checkRandomChanceExecutionSuccess(RandomChanceSkillStatic randomChance)
-    {
+    public static boolean checkRandomChanceExecutionSuccess(@NotNull RandomChanceSkillStatic randomChance) {
         return checkRandomChanceExecutionSuccess(randomChance, 1.0F);
     }
 
-    public static boolean checkRandomChanceExecutionSuccess(RandomChanceSkill randomChance)
-    {
+    public static boolean checkRandomChanceExecutionSuccess(@NotNull RandomChanceSkill randomChance) {
         double chanceOfSuccess = calculateChanceOfSuccess(randomChance);
 
         //Check the odds
@@ -151,14 +121,15 @@ public class RandomChanceUtil
 
     /**
      * Gets the Static Chance for something to activate
+     *
      * @param randomChance
      * @return
      */
-    public static double getRandomChanceExecutionChance(RandomChanceExecution randomChance) {
+    public static double getRandomChanceExecutionChance(@NotNull RandomChanceExecution randomChance) {
         return getChanceOfSuccess(randomChance.getXPos(), randomChance.getProbabilityCap(), LINEAR_CURVE_VAR);
     }
 
-    public static double getRandomChanceExecutionChance(RandomChanceStatic randomChance) {
+    public static double getRandomChanceExecutionChance(@NotNull RandomChanceStatic randomChance) {
         double chanceOfSuccess = getChanceOfSuccess(randomChance.getXPos(), randomChance.getProbabilityCap(), LINEAR_CURVE_VAR);
 
         chanceOfSuccess = addLuck(randomChance.isLucky(), chanceOfSuccess);
@@ -171,7 +142,7 @@ public class RandomChanceUtil
         return chanceOfSuccess;
     }*/
 
-    private static double calculateChanceOfSuccess(RandomChanceSkill randomChance) {
+    private static double calculateChanceOfSuccess(@NotNull RandomChanceSkill randomChance) {
         double skillLevel = randomChance.getSkillLevel();
         double maximumProbability = randomChance.getProbabilityCap();
         double maximumBonusLevel = randomChance.getMaximumBonusLevelCap();
@@ -192,7 +163,7 @@ public class RandomChanceUtil
         return chanceOfSuccess;
     }
 
-    private static double calculateChanceOfSuccess(RandomChanceSkillStatic randomChance) {
+    private static double calculateChanceOfSuccess(@NotNull RandomChanceSkillStatic randomChance) {
         double chanceOfSuccess = getChanceOfSuccess(randomChance.getXPos(), 100, 100);
 
         //Add Luck
@@ -207,27 +178,23 @@ public class RandomChanceUtil
      *
      * @return the chance of success from 0-100 (100 = guaranteed)
      */
-    private static int getChanceOfSuccess(double skillLevel, double maxProbability, double maxLevel)
-    {
+    private static int getChanceOfSuccess(double skillLevel, double maxProbability, double maxLevel) {
         //return (int) (x / (y / LINEAR_CURVE_VAR));
-        return (int) (maxProbability * (skillLevel/maxLevel));
+        return (int) (maxProbability * (skillLevel / maxLevel));
         // max probability * (weight/maxlevel) = chance of success
     }
 
-    private static int getChanceOfSuccess(double x, double y)
-    {
+    private static int getChanceOfSuccess(double x, double y) {
         return (int) (x / (y / LINEAR_CURVE_VAR));
         // max probability * (weight/maxlevel) = chance of success
     }
 
-    public static double getRandomChanceExecutionSuccess(Player player, SubSkillType subSkillType, boolean hasCap)
-    {
+    public static double getRandomChanceExecutionSuccess(@Nullable Player player, @NotNull SubSkillType subSkillType, boolean hasCap) {
         RandomChanceSkill rcs = new RandomChanceSkill(player, subSkillType, hasCap);
         return calculateChanceOfSuccess(rcs);
     }
 
-    public static double getRandomStaticChanceExecutionSuccess(Player player, SubSkillType subSkillType)
-    {
+    public static double getRandomStaticChanceExecutionSuccess(@Nullable Player player, @NotNull SubSkillType subSkillType) {
         try {
             return getRandomChanceExecutionChance(new RandomChanceSkillStatic(getStaticRandomChance(subSkillType), player, subSkillType));
         } catch (InvalidStaticChance invalidStaticChance) {
@@ -238,29 +205,24 @@ public class RandomChanceUtil
         return 0.1337; //Puts on shades
     }
 
-    public static boolean checkRandomChanceExecutionSuccess(Player player, SubSkillType subSkillType, boolean hasCap)
-    {
+    public static boolean checkRandomChanceExecutionSuccess(@Nullable Player player, @NotNull SubSkillType subSkillType, boolean hasCap) {
         return checkRandomChanceExecutionSuccess(new RandomChanceSkill(player, subSkillType, hasCap));
     }
 
-    public static boolean checkRandomChanceExecutionSuccess(Player player, SubSkillType subSkillType)
-    {
+    public static boolean checkRandomChanceExecutionSuccess(@Nullable Player player, @NotNull SubSkillType subSkillType) {
         return checkRandomChanceExecutionSuccess(new RandomChanceSkill(player, subSkillType));
     }
 
-    public static boolean checkRandomChanceExecutionSuccess(Player player, SubSkillType subSkillType, boolean hasCap, double resultModifier)
-    {
+    public static boolean checkRandomChanceExecutionSuccess(@Nullable Player player, @NotNull SubSkillType subSkillType, boolean hasCap, double resultModifier) {
         return checkRandomChanceExecutionSuccess(new RandomChanceSkill(player, subSkillType, hasCap, resultModifier));
     }
 
-    public static boolean checkRandomChanceExecutionSuccess(Player player, SubSkillType subSkillType, double resultModifier)
-    {
+    public static boolean checkRandomChanceExecutionSuccess(@Nullable Player player, @NotNull SubSkillType subSkillType, double resultModifier) {
         return checkRandomChanceExecutionSuccess(new RandomChanceSkill(player, subSkillType, resultModifier));
     }
 
 
-    public static boolean checkRandomStaticChanceExecutionSuccess(Player player, SubSkillType subSkillType, double resultModifier)
-    {
+    public static boolean checkRandomStaticChanceExecutionSuccess(@Nullable Player player, @NotNull SubSkillType subSkillType) {
         try {
             return checkRandomChanceExecutionSuccess(new RandomChanceSkillStatic(getStaticRandomChance(subSkillType), player, subSkillType));
         } catch (InvalidStaticChance invalidStaticChance) {
@@ -271,21 +233,15 @@ public class RandomChanceUtil
         return false;
     }
 
-    public static boolean checkRandomStaticChanceExecutionSuccess(Player player, SubSkillType subSkillType)
-    {
-        return checkRandomStaticChanceExecutionSuccess(player, subSkillType, 1.0F);
-    }
-
     /**
      * Grabs static activation rolls for Secondary Abilities
+     *
      * @param subSkillType The secondary ability to grab properties of
-     * @throws InvalidStaticChance if the skill has no defined static chance this exception will be thrown and you should know you're a naughty boy
      * @return The static activation roll involved in the RNG calculation
+     * @throws InvalidStaticChance if the skill has no defined static chance this exception will be thrown and you should know you're a naughty boy
      */
-    public static double getStaticRandomChance(SubSkillType subSkillType) throws InvalidStaticChance
-    {
-        switch(subSkillType)
-        {
+    public static double getStaticRandomChance(@NotNull SubSkillType subSkillType) throws InvalidStaticChance {
+        switch (subSkillType) {
             case AXES_ARMOR_IMPACT:
                 return AdvancedConfig.getInstance().getImpactChance();
             case AXES_GREATER_IMPACT:
@@ -297,24 +253,12 @@ public class RandomChanceUtil
         }
     }
 
-    public static boolean sendSkillEvent(Player player, SubSkillType subSkillType, double activationChance)
-    {
+    public static boolean sendSkillEvent(Player player, SubSkillType subSkillType, double activationChance) {
         SubSkillRandomCheckEvent event = new SubSkillRandomCheckEvent(player, subSkillType, activationChance);
         return !event.isCancelled();
     }
 
-    /*public static boolean treasureDropSuccessful(Player player, double dropChance, int activationChance) {
-        SubSkillRandomCheckEvent event = new SubSkillRandomCheckEvent(player, SubSkillType.EXCAVATION_ARCHAEOLOGY, dropChance / activationChance);
-        mcMMO.p.getServer().getPluginManager().callEvent(event);
-        return (event.getChance() * activationChance) > (Misc.getRandom().nextDouble() * activationChance) && !event.isCancelled();
-    }*/
-
-    public static boolean isActivationSuccessful(SkillActivationType skillActivationType, AbstractSubSkill abstractSubSkill, Player player)
-    {
-        return isActivationSuccessful(skillActivationType, abstractSubSkill.getSubSkillType(), player);
-    }
-
-    public static String[] calculateAbilityDisplayValues(SkillActivationType skillActivationType, Player player, SubSkillType subSkillType) {
+    public static String @NotNull [] calculateAbilityDisplayValues(@NotNull SkillActivationType skillActivationType, @NotNull Player player, @NotNull SubSkillType subSkillType) {
         double successChance = getActivationChance(skillActivationType, subSkillType, player);
         String[] displayValues = new String[2];
 
@@ -326,7 +270,7 @@ public class RandomChanceUtil
         return displayValues;
     }
 
-    public static String[] calculateAbilityDisplayValuesStatic(Player player, PrimarySkillType primarySkillType, double chance) {
+    public static String @NotNull [] calculateAbilityDisplayValuesStatic(@NotNull Player player, @NotNull PrimarySkillType primarySkillType, double chance) {
         RandomChanceStatic rcs = new RandomChanceStatic(chance, false);
         double successChance = getRandomChanceExecutionChance(rcs);
 
@@ -343,7 +287,7 @@ public class RandomChanceUtil
         return displayValues;
     }
 
-    public static String[] calculateAbilityDisplayValuesCustom(SkillActivationType skillActivationType, Player player, SubSkillType subSkillType, double multiplier) {
+    public static String @NotNull [] calculateAbilityDisplayValuesCustom(@NotNull SkillActivationType skillActivationType, @NotNull Player player, @NotNull SubSkillType subSkillType, double multiplier) {
         double successChance = getActivationChance(skillActivationType, subSkillType, player);
         successChance *= multiplier; //Currently only used for graceful roll
         String[] displayValues = new String[2];
@@ -358,17 +302,15 @@ public class RandomChanceUtil
         return displayValues;
     }
 
-    public static double addLuck(Player player, PrimarySkillType primarySkillType, double chance)
-    {
-        if(Permissions.lucky(player, primarySkillType))
+    public static double addLuck(@NotNull Player player, @NotNull PrimarySkillType primarySkillType, double chance) {
+        if (Permissions.lucky(player, primarySkillType))
             return chance * 1.333D;
         else
             return chance;
     }
 
-    public static double addLuck(boolean isLucky, double chance)
-    {
-        if(isLucky)
+    public static double addLuck(boolean isLucky, double chance) {
+        if (isLucky)
             return chance * 1.333D;
         else
             return chance;