--- /dev/null
+-- castbar.lua
+local _, addon = ...;
+local unpack = unpack;
+local ssub = string.sub;
+local min = math.min;
+local ceil = math.ceil;
+local UnitCastingInfo, UnitChannelInfo = UnitCastingInfo, UnitChannelInfo;
+local GetTime = GetTime;
+local CTimerAfter = C_Timer.After;
+local init = CreateFrame("Frame", "LoitsuMain");
+
+local barTexture = "Interface\\AddOns\\kehys\\images\\minimalist";
+local castingColor = {1, 0.49, 0}; -- from Quartz defaults
+local nointerruptColor = {0.6, 0.6, 0.6};
+local channelingColor = {0.32, 0.3, 1};
+local updaters = {};
+
+local function onUpdate(bar)
+ if not bar.updating then return end
+ --local width = bar.icon:IsShown() and bar.cast.width or bar.cast.width; -- TODO fullwidth
+ local startTime, endTime = bar.startTime, bar.endTime;
+ local currentClamped = min(GetTime(), endTime);
+ local remaining = endTime - currentClamped;
+ local percent;
+ if bar.channeling then
+ percent = remaining / (endTime - startTime);
+ else
+ percent = (currentClamped - startTime) / (endTime - startTime);
+ end
+
+ local width = percent*bar.cast.width;
+ if width <= 0 then
+ bar.cast:SetWidth(0.1);
+ else
+ bar.cast:SetWidth(width);
+ end
+ bar.time:SetFormattedText("%.1f", remaining);
+ CTimerAfter(0.02, updaters[bar]);
+end
+
+local function showBar(bar)
+ bar:Show();
+ bar.updating = true;
+ onUpdate(bar);
+end
+
+local function hideBar(bar)
+ bar:Hide();
+ bar.updating = nil;
+end
+
+local function toggleInterruptible(bar, nointr)
+ if bar.unit == "player" then return end
+ if nointr then
+ bar.cast:SetVertexColor(unpack(nointerruptColor));
+ bar.shield:Show();
+ else
+ bar.cast:SetVertexColor(unpack(bar.cast.color));
+ bar.shield:Hide();
+ end
+end
+
+local function startCast(bar, unit, channeling)
+ local name, icon, startTime, endTime, noInterrupt, id;
+ if channeling then
+ name, _, icon, startTime, endTime, _, noInterrupt = UnitChannelInfo(unit);
+ if not startTime or not endTime then return nil end
+ bar.channeling = true;
+ bar.cast.color = channelingColor;
+ else
+ _, name, icon, startTime, endTime, _, _, noInterrupt, id = UnitCastingInfo(unit);
+ if not startTime or not endTime then return nil end
+ bar.channeling = nil;
+ bar.cast.color = castingColor;
+ end
+ bar.startTime = startTime / 1000;
+ bar.endTime = endTime / 1000;
+ -- don't show samwise for non-existent icons
+ if icon ~= "Interface\\Icons\\Temp" then
+ bar.icon:SetTexture(icon);
+ bar.icon:Show();
+ bar.cast:SetWidth(channeling and bar.cast.width or 0.1);
+ else
+ bar.icon:Hide();
+ bar.cast:SetWidth(channeling and bar.cast.width or 0.1); -- TODO use fullwidth
+ end
+ bar.spell:SetText(ssub(name, 1, bar.spell.count));
+ bar.time:SetFormattedText("%.1f", (endTime - startTime)/1000);
+ bar.cast:SetVertexColor(unpack(bar.cast.color));
+ showBar(bar);
+ toggleInterruptible(bar, noInterrupt);
+ return true;
+end
+
+local function applyDelay(bar, unit, channeling)
+ local startTime, endTime;
+ if channeling then
+ _, _, _, startTime, endTime = UnitChannelInfo(unit);
+ else
+ _, _, _, startTime, endTime = UnitCastingInfo(unit);
+ end
+ if not startTime or not endTime then return hideBar(bar) end
+ bar.startTime = startTime / 1000;
+ bar.endTime = endTime / 1000;
+end
+
+local events = {
+ ["UNIT_SPELLCAST_START"] = function(bar, unit)
+ startCast(bar, unit);
+ end,
+ ["PLAYER_TARGET_CHANGED"] = function(bar)
+ hideBar(bar);
+ if not startCast(bar, bar.unit) then
+ startCast(bar, bar.unit, true);
+ end
+ end,
+ ["UNIT_SPELLCAST_CHANNEL_START"] = function(bar, unit)
+ startCast(bar, unit, true);
+ end,
+ ["UNIT_SPELLCAST_STOP"] = function(bar)
+ hideBar(bar);
+ end,
+ ["UNIT_SPELLCAST_DELAYED"] = function(bar, unit)
+ applyDelay(bar, unit);
+ end,
+ ["UNIT_SPELLCAST_CHANNEL_UPDATE"] = function(bar, unit)
+ applyDelay(bar, unit, true);
+ end,
+ ["UNIT_SPELLCAST_INTERRUPTIBLE"] = function(bar)
+ toggleInterruptible(bar, false);
+ end,
+ ["UNIT_SPELLCAST_NOT_INTERRUPTIBLE"] = function(bar)
+ toggleInterruptible(bar, true);
+ end,
+};
+events["UNIT_SPELLCAST_CHANNEL_STOP"] = events["UNIT_SPELLCAST_STOP"];
+
+local function onEvent(bar, event, unit)
+ if unit == bar.unit or (bar.unit == "player" and unit == "vehicle") then
+ events[event](bar, unit);
+ elseif event == "PLAYER_TARGET_CHANGED" then
+ events[event](bar);
+ end
+end
+
+local function registerCastEvents(bar)
+ --bar:RegisterEvent("UNIT_SPELLCAST_SENT");
+ bar:RegisterEvent("UNIT_SPELLCAST_START");
+ bar:RegisterEvent("UNIT_SPELLCAST_STOP");
+ --bar:RegisterEvent("UNIT_SPELLCAST_FAILED");
+ --bar:RegisterEvent("UNIT_SPELLCAST_INTERRUPTED");
+ bar:RegisterEvent("UNIT_SPELLCAST_DELAYED");
+ bar:RegisterEvent("UNIT_SPELLCAST_CHANNEL_START");
+ bar:RegisterEvent("UNIT_SPELLCAST_CHANNEL_STOP");
+ bar:RegisterEvent("UNIT_SPELLCAST_CHANNEL_UPDATE");
+ bar:RegisterEvent("UNIT_SPELLCAST_INTERRUPTIBLE");
+ bar:RegisterEvent("UNIT_SPELLCAST_NOT_INTERRUPTIBLE");
+ if bar.unit == "target" then bar:RegisterEvent("PLAYER_TARGET_CHANGED") end
+ -- trigger initial check
+ if not startCast(bar, bar.unit) then
+ startCast(bar, bar.unit, true);
+ end
+end
+
+local function unregisterCastEvents(bar)
+ bar:UnregisterAllEvents();
+ hideBar(bar);
+end
+
+local barid = 1;
+local function createCastBar(unit, width, x, y)
+ local bar = CreateFrame("Frame", "loitsu"..barid, UIParent);
+ barid = barid + 1;
+ bar.unit = unit;
+ bar:SetPoint("CENTER", UIParent, "CENTER", x, y);
+ bar:SetWidth(width);
+ bar:SetHeight(22);
+ bar:Hide();
+ bar.back = bar:CreateTexture(nil, "BACKGROUND");
+ bar.back:SetAllPoints();
+ bar.back:SetColorTexture(0, 0, 0, 0.7);
+ bar.icon = bar:CreateTexture(nil, "ARTWORK", 1);
+ bar.icon:SetPoint("TOPLEFT", bar, "TOPLEFT", 1, -1);
+ bar.icon:SetPoint("BOTTOMRIGHT", bar, "BOTTOMLEFT", 21, 1);
+ bar.icon:SetTexCoord(0.07, 0.93, 0.07, 0.93); -- remove borders (from Quartz)
+ bar.shield = bar:CreateTexture(nil, "ARTWORK");
+ bar.shield:SetPoint("CENTER", bar.icon, "CENTER", -2, -1);
+ bar.shield:SetWidth(28);
+ bar.shield:SetHeight(50);
+ bar.shield:SetTexture("Interface\\CastingBar\\UI-CastingBar-Small-Shield");
+ bar.shield:SetTexCoord(0, 36/256, 0, 1);
+ bar.shield:Hide();
+ bar.cast = bar:CreateTexture(nil, "ARTWORK");
+ bar.cast:SetPoint("TOPLEFT", bar.icon, "TOPRIGHT", 1, 0);
+ bar.cast:SetPoint("BOTTOMLEFT", bar.icon, "BOTTOMRIGHT", 1, 0);
+ bar.cast.width = bar:GetWidth() - bar.icon:GetWidth() - 3;
+ bar.cast.fullwidth = bar:GetWidth() - 2; -- for casts without icon
+ bar.cast:SetWidth(bar.cast.width);
+ bar.cast:SetTexture(barTexture);
+ bar.cast.color = castingColor;
+ bar.spell = bar:CreateFontString(nil, "OVERLAY", "GameFontHighlight");
+ bar.spell:SetPoint("LEFT", bar.icon, "RIGHT", 2, 0);
+ bar.spell.count = ceil(bar.cast:GetWidth()/10);
+ bar.time = bar:CreateFontString(nil, "OVERLAY", "GameFontHighlight");
+ bar.time:SetPoint("RIGHT", bar, "RIGHT", -2, 0);
+ bar:SetScript("OnEvent", onEvent);
+ updaters[bar] = function() onUpdate(bar) end
+ registerCastEvents(bar);
+ return bar;
+end
+
+init:SetScript("OnEvent", function (self)
+ self:UnregisterAllEvents();
+ createCastBar("player", 160, -300, -140);
+ createCastBar("target", 160, 300, -140);
+end);
+init:RegisterEvent("PLAYER_LOGIN");