LoTROInterface SVN Reminders

Shockwave = class(Turbine.UI.Window);

local importPath = getfenv(1)._.Name;
local imagePath = string.gsub(string.gsub(importPath, "%.Shockwave$", ""), "%.", "/");

function Shockwave:Constructor()
    Turbine.UI.Window.Constructor(self);
    self:SetBackground(imagePath .. "/blurry_ring.tga");
    self:SetVisible(true);
    self:SetMouseVisible(false);
    self:SetStretchMode(2); -- resize to image's native size
    self:SetStretchMode(1); -- enable scaling
    self.x, self.y = self:GetPosition();
    self.width = self:GetWidth();
end

function Shockwave:SetCenter(x, y)
    self.x, self.y = x, y;
    local offset = math.floor(self.width / 2 + 0.5);
    self:SetPosition(x - offset, y - offset);
end

function Shockwave:SetDiameter(diameter)
    self.width = math.floor(diameter * 1.367 + 0.5);
    self:SetSize(self.width, self.width);
    self:SetCenter(self.x, self.y);
end

function Shockwave:GetDiameter()
    return math.floor(self.width / 1.367 + 0.5);
end

function Shockwave:Explode()
    self.startTime = Turbine.Engine.GetGameTime();
    self.duration = 1.0;
    self.startDiameter = self:GetDiameter();
    local displayWidth, displayHeight = Turbine.UI.Display:GetSize();
    local maxRadius = math.max(self.x, displayWidth - self.x, self.y, displayHeight - self.y);
    self.sizeIncrease = 2 * maxRadius - self.startDiameter;
    self.prevProgress = 0;
    self:SetWantsUpdates(true);
end

function Shockwave:Update()
    local progress = (Turbine.Engine.GetGameTime() - self.startTime) / self.duration;
    if ((progress - self.prevProgress) > 0.05) then
        -- Enforce at least 20 frames of display
        progress = self.prevProgress + 0.05;
    end
    if (progress >= 1) then
        self:Close();
    else
        self:SetOpacity(1 - progress);
        self:SetDiameter(self.startDiameter + progress * self.sizeIncrease);
    end
    self.prevProgress = progress;
end

function Shockwave:Close()
    self:SetVisible(false);
    self:SetWantsUpdates(false);
    DoCallbacks(self, "Closing");
    Turbine.UI.Window.Close(self);
end