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Holliday/CustomGreench.lua

@@ -1,38 +1,116 @@
---Needs lots and lots of work. Register health check to event 9. 
---Add true false statements to check if he's reached below 50.
---Don't remove events unnecessarily 
+--Needs lots and lots of work. 
 
-local AbominableGreench = {};
+local NPC_ABOMINABLE_GREENCH = 13602 -- Replace this with the correct entry ID for Abominable Greench
 
-function AbominableGreench.OnDie(event, creature)
-creature:SendUnitYell("Argh... I'll be back!", 0)
+local PHASE_ONE = 1
+local PHASE_TWO = 2
+local PHASE_THREE = 3
+local PHASE_FOUR = 4
+
+PHASE_DIALOGUE = {
+	[PHASE_ONE] = "",
+    [PHASE_TWO] = "You've been naughty! Time for a frosty surprise!",
+    [PHASE_THREE] = "Frostbite's nipping at your noses!",
+    [PHASE_FOUR] = "I'm the Grinch who stole Winter Veil! Taste my icy wrath!",
+}
+
+SPAWN_DIALOGUE = "The Abominable Greench has come to ruin your Winter Veil! Bwahaha!"
+DEATH_DIALOGUE = "Winter...veil...will...return..."
+AGGRO_DIALOGUE = "You're a mean one, aren't you? Time to crush your holiday spirit!"
+
+local SPELL_FROSTBOLT = 10179
+local SPELL_CONE_OF_COLD = 20828
+local SPELL_FROST_NOVA = 27088
+local SPELL_BLIZZARD = 19099
+local SPELL_ICE_ARMOR = 12544
+local SPELL_ICY_VEINS = 12472
+local SPELL_SUMMON_WINTER_WISP = 39319 -- Replace with a custom spell that summons Winter Wisp adds
+
+local phaseAbilities = {
+    [PHASE_ONE] = {
+        {spell = SPELL_FROSTBOLT, minInterval = 3000, maxInterval = 6000},
+        {spell = SPELL_CONE_OF_COLD, minInterval = 10000, maxInterval = 15000},
+    },
+    [PHASE_TWO] = {
+        {spell = SPELL_FROST_NOVA, minInterval = 12000, maxInterval = 18000},
+        {spell = SPELL_BLIZZARD, minInterval = 20000, maxInterval = 25000},
+    },
+    [PHASE_THREE] = {
+        {spell = SPELL_ICY_VEINS, minInterval = 60000, maxInterval = 90000},
+        {spell = SPELL_SUMMON_WINTER_WISP, minInterval = 30000, maxInterval = 45000},
+    },
+}
+
+local function GetPhaseByHealth(healthPct)
+    if healthPct > 75 then
+        return PHASE_ONE
+    elseif healthPct > 50 then
+        return PHASE_TWO
+    elseif healthPct > 25 then
+        return PHASE_THREE
+    else
+        return PHASE_FOUR
+    end
 end
 
-function AbominableGreench.Enrage(event, delay, calls, creature)
-if (creature:GetHealthPct() <= 50) then
-creature:RemoveEvents()
-creature:CastSpell(creature, 61369, true)
-creature:RegisterEvent(AbominableGreench.FrostAttack, 4000, 0)
-end
+
+local function CastSpellWithCooldown(eventId, delay, repeats, creature, spell, minInterval, maxInterval, triggered)
+    if creature:IsInCombat() then
+        creature:CastSpell(creature:GetVictim(), spell, triggered)
+        local interval = math.random(minInterval, maxInterval)
+        creature:RegisterEvent(CastSpellWithCooldown, interval, 1, creature, spell, minInterval, maxInterval, triggered)
+    end
 end
 
-function AbominableGreench.FrostAttack(event, delay, calls, creature)
-local TARGET = creature:GetAITarget(1, true, 0, 45)
-creature:CastSpell(TARGET, 35263, true)
+
+local function ApplyPhaseAbilities(creature, phase)
+    creature:RemoveEvents()
+    for _, ability in ipairs(phaseAbilities[phase]) do
+        local triggered = ability.spell == SPELL_CONE_OF_COLD
+        CastSpellWithCooldown(creature, ability.spell, ability.minInterval, ability.maxInterval, triggered)
+    end
 end
 
-function AbominableGreench.OnEnterCombat(event, creature, target)
-local TARGET = creature:GetAITarget(1, true, 0, 45)
-creature:CastSpell(TARGET, 33547, true)
-creature:SendUnitYell("You can try to stop me, but it's just a waste of time. I'm the king of Winter Veil crime!", 0)
-creature:RegisterEvent(AbominableGreench.Enrage, 1000, 0)
+local function Greench_OnEnterCombat(event, creature, target)
+    creature:CastSpell(creature, SPELL_ICE_ARMOR, true)
+    local currentPhase = GetPhaseByHealth(creature:GetHealthPct())
+
+    creature:SendUnitYell(AGGRO_DIALOGUE, 0)
+    ApplyPhaseAbilities(creature, currentPhase)
 end
 
-function AbominableGreench.OnLeaveCombat(event, creature)
-creature:SendUnitYell("What's the matter? Don't you like my holiday spirit?", 0)
-creature:RemoveEvents()
+local function Greench_OnLeaveCombat(event, creature)
+    creature:RemoveEvents()
 end
 
-RegisterCreatureEvent(13602, 1, AbominableGreench.OnEnterCombat)
-RegisterCreatureEvent(13602, 2, AbominableGreench.OnLeaveCombat)
-RegisterCreatureEvent(13602, 4, AbominableGreench.OnDie)
+local function Greench_OnDamageTaken(event, creature, attacker, damage)
+    local healthPct = creature:GetHealthPct()
+    local newPhase = GetPhaseByHealth(healthPct)
+
+    if newPhase ~= creature:GetData("currentPhase") then
+        creature:RemoveEvents()
+        creature:SetData("currentPhase", newPhase)
+        if PHASE_DIALOGUE[newPhase] then
+            creature:SendUnitYell(PHASE_DIALOGUE[newPhase], 0)
+        end
+        ApplyPhaseAbilities(creature, newPhase)
+    end
+end
+
+
+local function Greench_OnDied(event, creature, killer)
+    creature:RemoveEvents()
+    creature:SendUnitYell(DEATH_DIALOGUE, 0)
+end
+
+local function Greench_OnSpawn(event, creature)
+    creature:SetData("currentPhase", PHASE_ONE)
+    creature:SendUnitYell(SPAWN_DIALOGUE, 0)
+end
+
+RegisterCreatureEvent(NPC_ABOMINABLE_GREENCH, 1, Greench_OnEnterCombat)
+RegisterCreatureEvent(NPC_ABOMINABLE_GREENCH, 2, Greench_OnLeaveCombat)
+RegisterCreatureEvent(NPC_ABOMINABLE_GREENCH, 4, Greench_OnDied)
+RegisterCreatureEvent(NPC_ABOMINABLE_GREENCH, 9, Greench_OnDamageTaken)
+RegisterCreatureEvent(NPC_ABOMINABLE_GREENCH, 5, Greench_OnSpawn)
+