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Complete Projects/Legion/Focus Thing.lua

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+--EVERY FRAME
+function()
+    local focusmax = UnitPowerMax("player")
+    local time = GetTime()
+    local star, dur = GetSpellCooldown(61304)
+    local regen = GetPowerRegen()
+    if dur > 0 and aura_env.spell == "Arcane Shot" then
+        aura_env.newfocus = aura_env.focus + dur * regen + 8
+    end
+    if dur > 0 and aura_env.spell ~= "Arcane Shot" then
+        aura_env.newfocus = aura_env.focus + dur * regen
+    end
+    return aura_env.newfocus, focusmax, 1
+end
+
+--COMBAT_LOG_EVENT_UNFILTERED
+function(...)
+    local se = select(3, ...)
+    if se == "SPELL_CAST_SUCCESS" then
+        local caster = select(6, ...)
+        aura_env.spell = select(14, ...)
+        if caster == UnitName("player") then
+            aura_env.focus = UnitPower("player") 
+        end
+    end
+end
+
+--INIT
+aura_env.focus = 0
+aura_env.newfocus = 0