Add roll event, remove particle flag from the dodge event.

src/main/java/com/gmail/nossr50/events/skills/acrobatics/McMMOPlayerDodgeEvent.java

@@ -5,13 +5,11 @@ import org.bukkit.entity.Player;
 public class McMMOPlayerDodgeEvent extends McMMOPlayerAcrobaticsEvent {
     private double damageTaken;
     private float xpGained;
-    private boolean useParticles;
 
     public McMMOPlayerDodgeEvent(Player player, double damageTaken, float xpGained) {
         super(player);
         this.damageTaken = damageTaken;
         this.xpGained = xpGained;
-        useParticles = true;
     }
 
     public double getDamageTaken() {
@@ -29,12 +27,4 @@ public class McMMOPlayerDodgeEvent extends McMMOPlayerAcrobaticsEvent {
     public void setXpGained(float xpGained) {
         this.xpGained = xpGained;
     }
-
-    public boolean shouldUseParticles() {
-        return useParticles;
-    }
-
-    public void setUseParticles(boolean useParticles) {
-        this.useParticles = useParticles;
-    }
 }

src/main/java/com/gmail/nossr50/events/skills/acrobatics/McMMOPlayerRollEvent.java

@@ -0,0 +1,36 @@
+package com.gmail.nossr50.events.skills.acrobatics;
+
+import org.bukkit.entity.Player;
+
+public class McMMOPlayerRollEvent extends McMMOPlayerAcrobaticsEvent {
+    private double damageTaken;
+    private float xpGained;
+    private boolean graceful;
+
+    public McMMOPlayerRollEvent(Player player, double damageTaken, float xpGained, boolean graceful) {
+        super(player);
+        this.damageTaken = damageTaken;
+        this.xpGained = xpGained;
+        this.graceful = graceful;
+    }
+
+    public double getDamageTaken() {
+        return damageTaken;
+    }
+
+    public void setDamageTaken(double damageTaken) {
+        this.damageTaken = damageTaken;
+    }
+
+    public float getXpGained() {
+        return xpGained;
+    }
+
+    public void setXpGained(float xpGained) {
+        this.xpGained = xpGained;
+    }
+
+    public boolean isGraceful() {
+        return graceful;
+    }
+}

src/main/java/com/gmail/nossr50/listeners/EntityListener.java

@@ -40,7 +40,6 @@ import com.gmail.nossr50.events.fake.FakeEntityDamageByEntityEvent;
 import com.gmail.nossr50.events.fake.FakeEntityDamageEvent;
 import com.gmail.nossr50.party.PartyManager;
 import com.gmail.nossr50.runnables.skills.BleedTimerTask;
-import com.gmail.nossr50.skills.acrobatics.AcrobaticsManager;
 import com.gmail.nossr50.skills.archery.Archery;
 import com.gmail.nossr50.skills.fishing.Fishing;
 import com.gmail.nossr50.skills.herbalism.Herbalism;
@@ -236,16 +235,8 @@ public class EntityListener implements Listener {
                         return;
                     }
 
-                    AcrobaticsManager acrobaticsManager = mcMMOPlayer.getAcrobaticsManager();
-
-                    if (acrobaticsManager.canRoll()) {
-                        event.setDamage(acrobaticsManager.rollCheck(event.getDamage()));
-
-                        if (event.getDamage() == 0) {
-                            event.setCancelled(true);
-                            return;
-                        }
-                    }
+                    event.setDamage(mcMMOPlayer.getAcrobaticsManager().roll(event.getDamage()));
+                    event.setCancelled(event.getDamage() == 0);
                     break;
 
                 case BLOCK_EXPLOSION:

src/main/java/com/gmail/nossr50/skills/acrobatics/Acrobatics.java

@@ -27,11 +27,11 @@ public final class Acrobatics {
 
     private Acrobatics() {};
 
-    protected static double calculateModifiedDodgeDamage(double damage, double damageModifier) {
-        return Math.max(damage / damageModifier, 1.0);
+    protected static double calculateModifiedDodgeDamage(double damage) {
+        return Math.max(damage / dodgeDamageModifier, 1.0);
     }
 
-    protected static double calculateModifiedRollDamage(double damage, double damageThreshold) {
-        return Math.max(damage - damageThreshold, 0.0);
+    protected static double calculateModifiedRollDamage(double damage, boolean isGraceful) {
+        return Math.max(damage - (isGraceful ? gracefulRollThreshold : rollThreshold), 0.0);
     }
 }

src/main/java/com/gmail/nossr50/skills/acrobatics/AcrobaticsManager.java

@@ -13,6 +13,7 @@ import com.gmail.nossr50.config.Config;
 import com.gmail.nossr50.datatypes.player.McMMOPlayer;
 import com.gmail.nossr50.datatypes.skills.SkillType;
 import com.gmail.nossr50.events.skills.acrobatics.McMMOPlayerDodgeEvent;
+import com.gmail.nossr50.events.skills.acrobatics.McMMOPlayerRollEvent;
 import com.gmail.nossr50.locale.LocaleLoader;
 import com.gmail.nossr50.skills.SkillManager;
 import com.gmail.nossr50.util.Misc;
@@ -42,47 +43,28 @@ public class AcrobaticsManager extends SkillManager {
      * @param damage The amount of damage initially dealt by the event
      * @return the modified event damage if the ability was successful, the original event damage otherwise
      */
-    public double rollCheck(double damage) {
-        Player player = getPlayer();
-
-        if (player.isSneaking() && Permissions.gracefulRoll(player)) {
-            return gracefulRollCheck(damage);
+    public double roll(double damage) {
+        if (!canRoll()) {
+            return damage;
         }
 
-        double modifiedDamage = Acrobatics.calculateModifiedRollDamage(damage, Acrobatics.rollThreshold);
-
-        if (!isFatal(modifiedDamage) && isSuccessfulRoll(Acrobatics.rollMaxChance, Acrobatics.rollMaxBonusLevel)) {
-            player.sendMessage(LocaleLoader.getString("Acrobatics.Roll.Text"));
-            applyXpGain(calculateRollXP(damage, true));
-
-            return modifiedDamage;
-        }
-        else if (!isFatal(damage)) {
-            applyXpGain(calculateRollXP(damage, false));
-        }
+        Player player = getPlayer();
+        boolean isGraceful = player.isSneaking() && Permissions.gracefulRoll(player);
+        double modifiedDamage = Acrobatics.calculateModifiedRollDamage(damage, isGraceful);
 
-        lastFallLocation = player.getLocation();
+        if (!isFatal(modifiedDamage) && isSuccessfulRoll(isGraceful)) {
+            McMMOPlayerRollEvent event = new McMMOPlayerRollEvent(player, modifiedDamage, calculateRollXP(damage, true), isGraceful);
+            mcMMO.p.getServer().getPluginManager().callEvent(event);
 
-        return damage;
-    }
+            if (event.isCancelled()) {
+                return damage;
+            }
 
-    /**
-     * Handle the damage reduction and XP gain from the Graceful Roll ability
-     *
-     * @param damage The amount of damage initially dealt by the event
-     * @return the modified event damage if the ability was successful, the original event damage otherwise
-     */
-    private double gracefulRollCheck(double damage) {
-        double modifiedDamage = Acrobatics.calculateModifiedRollDamage(damage, Acrobatics.gracefulRollThreshold);
-
-        if (!isFatal(modifiedDamage) && isSuccessfulRoll(Acrobatics.gracefulRollMaxChance, Acrobatics.gracefulRollMaxBonusLevel)) {
-            getPlayer().sendMessage(LocaleLoader.getString("Acrobatics.Ability.Proc"));
-            applyXpGain(calculateRollXP(damage, true));
-
-            return modifiedDamage;
+            return event.getDamageTaken();
         }
         else if (!isFatal(damage)) {
             applyXpGain(calculateRollXP(damage, false));
+            lastFallLocation = player.getLocation();
         }
 
         return damage;
@@ -115,25 +97,6 @@ public class AcrobaticsManager extends SkillManager {
         return fallTries > Config.getInstance().getAcrobaticsAFKMaxTries();
     }
 
-    private boolean isSuccessfulRoll(double maxChance, int maxLevel) {
-        return (maxChance / maxLevel) * Math.min(getSkillLevel(), maxLevel) > Misc.getRandom().nextInt(activationChance);
-    }
-
-    private boolean isFatal(double damage) {
-        return getPlayer().getHealth() - damage < 1;
-    }
-
-    private float calculateRollXP(double damage, boolean isRoll) {
-        ItemStack boots = getPlayer().getInventory().getBoots();
-        float xp = (float) (damage * (isRoll ? Acrobatics.rollXpModifier : Acrobatics.fallXpModifier));
-
-        if (boots != null && boots.containsEnchantment(Enchantment.PROTECTION_FALL)) {
-            xp *= Acrobatics.featherFallXPModifier;
-        }
-
-        return xp;
-    }
-
     /**
      * Handle the damage reduction and XP gain from the Dodge ability
      *
@@ -142,7 +105,7 @@ public class AcrobaticsManager extends SkillManager {
      * @return the modified event damage if the ability was successful, the original event damage otherwise
      */
     public double dodge(Entity damager, double damage) {
-        double modifiedDamage = Acrobatics.calculateModifiedDodgeDamage(damage, Acrobatics.dodgeDamageModifier);
+        double modifiedDamage = Acrobatics.calculateModifiedDodgeDamage(damage);
 
         if (!canDodge(damager, modifiedDamage)) {
             return damage;
@@ -157,20 +120,38 @@ public class AcrobaticsManager extends SkillManager {
             return damage;
         }
 
-        if (event.shouldUseParticles()) {
-            ParticleEffectUtils.playDodgeEffect(player);
-        }
+        ParticleEffectUtils.playDodgeEffect(player);
 
         if (mcMMOPlayer.useChatNotifications()) {
             player.sendMessage(LocaleLoader.getString("Acrobatics.Combat.Proc"));
         }
 
-        // Why do we check respawn cooldown here?
-        // No, seriously, why?
         if (SkillUtils.cooldownExpired(mcMMOPlayer.getRespawnATS(), Misc.PLAYER_RESPAWN_COOLDOWN_SECONDS)) {
             applyXpGain(event.getXpGained());
         }
 
         return event.getDamageTaken();
     }
+
+    private boolean isSuccessfulRoll(boolean isGraceful) {
+        double maxChance = isGraceful ? Acrobatics.gracefulRollMaxChance : Acrobatics.rollMaxChance;
+        int maxLevel = isGraceful ? Acrobatics.gracefulRollMaxBonusLevel : Acrobatics.rollMaxBonusLevel;
+
+        return (maxChance / maxLevel) * Math.min(getSkillLevel(), maxLevel) > Misc.getRandom().nextInt(activationChance);
+    }
+
+    private float calculateRollXP(double damage, boolean isRoll) {
+        ItemStack boots = getPlayer().getInventory().getBoots();
+        float xp = (float) (damage * (isRoll ? Acrobatics.rollXpModifier : Acrobatics.fallXpModifier));
+
+        if (boots != null && boots.containsEnchantment(Enchantment.PROTECTION_FALL)) {
+            xp *= Acrobatics.featherFallXPModifier;
+        }
+
+        return xp;
+    }
+
+    private boolean isFatal(double damage) {
+        return getPlayer().getHealth() - damage < 1;
+    }
 }