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02-26-16, 02:19 AM   #1
jeAz_
A Deviate Faerie Dragon
Join Date: Feb 2016
Posts: 13
texture drawing order?

Hi all,

So, I was trying to create a cast bar and reached here to ask a question regarding drawing orders of texture.

Please have a look at the lines of code that I wrote:
Lua Code:
  1. A.CreateCastBar = function(f, unit)
  2.     local point, relativeTo, relativePoint, xOfs, yOfs = unpack(G[unit]["castbar"]["point"]);
  3.  
  4.     local CastBar = CreateFrame("Frame", f:GetName() .. "CastBar", f);
  5.     CastBar:SetSize(G[unit]["castbar"]["width"], G[unit]["castbar"]["height"]);
  6.     CastBar:SetPoint(point, relativeTo, relativePoint, xOfs, yOfs);
  7.  
  8.     local Bar = CreateFrame("StatusBar", nil, CastBar);
  9.     Bar:SetSize(CastBar:GetWidth() - 36, CastBar:GetHeight() - 4);
  10.     Bar:SetPoint("RIGHT", CastBar, "RIGHT", -2, 0);
  11.     Bar:SetStatusBarTexture(BACKDROP);
  12.     Bar:SetStatusBarColor(0.5, 0.5, 1, 1);
  13.  
  14.     CastBar.Bar = Bar;
  15.  
  16.     local bg = Bar:CreateTexture(nil, "BACKGROUND");
  17.     bg:SetAllPoints(true);
  18.     bg:SetTexture(BACKDROP);
  19.     bg:SetVertexColor(1, 1, 1, 1);
  20.  
  21.     CastBar.bg = bg;
  22.  
  23.     local background = Bar:CreateTexture(nil, "BACKGROUND");
  24.     background:SetSize(Bar:GetWidth() + 4, Bar:GetHeight() + 4);
  25.     background:SetPoint("CENTER", Bar, "CENTER", 0, 0);
  26.     background:SetTexture(BACKDROP);
  27.     background:SetVertexColor(0.1, 0.1, 0.1, 1);
  28.  
  29.     CastBar.background = background;
  30.  
  31.     local Icon = CreateFrame("Frame", nil, CastBar);
  32.     Icon:SetSize(CastBar:GetHeight() - 4, CastBar:GetHeight() - 4);
  33.     Icon:SetPoint("LEFT", CastBar, "LEFT", 2, 0);
  34.  
  35.     CastBar.Icon = Icon;
  36.  
  37.     local texture = Icon:CreateTexture(nil, "OVERLAY");
  38.     texture:SetAllPoints(true);
  39.     texture:SetTexture(BACKDROP);
  40.     texture:SetVertexColor(0.5, 0.5, 1, 1);
  41.  
  42.     Icon.texture = texture;
  43.  
  44.     background = Icon:CreateTexture(nil, "BACKGROUND");
  45.     background:SetSize(Icon:GetWidth() + 4, Icon:GetHeight() + 4);
  46.     background:SetPoint("CENTER", Icon, "CENTER", 0, 0);
  47.     background:SetTexture(BACKDROP);
  48.     background:SetVertexColor(0.1, 0.1, 0.1, 1);
  49.  
  50.     Icon.background = background;
  51. end

and my problematic part is here:
Lua Code:
  1. local bg = Bar:CreateTexture(nil, "BACKGROUND");
  2. bg:SetAllPoints(true);
  3. bg:SetTexture(BACKDROP);
  4. bg:SetVertexColor(1, 1, 1, 1);
  5.  
  6. CastBar.bg = bg;
  7.  
  8. local background = Bar:CreateTexture(nil, "BACKGROUND");
  9. background:SetSize(Bar:GetWidth() + 4, Bar:GetHeight() + 4);
  10. background:SetPoint("CENTER", Bar, "CENTER", 0, 0);
  11. background:SetTexture(BACKDROP);
  12. background:SetVertexColor(0.1, 0.1, 0.1, 1);
  13.  
  14. CastBar.background = background;

Since "bg" and "background" are drawn on same layer, it does not draw "bg" on screen.

Any helps please?
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