improvement: better textboxes

sonic-radiance.love/game/modules/gui/boxedmenu.lua

@@ -6,20 +6,15 @@ local gui = require "game.modules.gui"
 function BoxedList:new(name, x, y, w, slotNumber, isBoxed, smallborder)
     BoxedList.super.new(self, name, "small", x, y, w, slotNumber, 0)
     self.paddingLeft = 12
-    self.paddingRight = 4
+    self.paddingRight = 6
     self.canvas.padding = 24
 
     self.cursorTexture = love.graphics.newImage("assets/gui/cursor-menulist.png")
     self.cursorTransition = 0
 
     self.isBoxed = isBoxed
-    if (isBoxed) then
+    self.border = utils.math.either(smallborder, 8, 16)
-        local border = self.h + 16
+    self.box = gui.newTextBox("assets/gui/dialogbox.png", self.w, self.h + self.border)
-        if (smallborder == true) then
-            border = self.h + 8
-        end
-        self.box = gui.newTextBox("assets/gui/dialogbox.png", w + 8, border)
-    end
 end
 
 function BoxedList:finalize()
@@ -32,13 +27,8 @@ end
 
 function BoxedList:drawTexture()
     if (self.isBoxed) then
-        local dy = 8
-        if (self.smallborder) then
-            dy = 4
-        end
         local w, h = self.box:getDimensions()
-        local diff = (w-self.w)/2
+        love.graphics.draw(self.box, self.canvas.padding, self.canvas.padding - self.border/2)
-        love.graphics.draw(self.box, self.canvas.padding - diff, self.canvas.padding - dy)
     end
     BoxedList.super.drawTexture(self)
 end

sonic-radiance.love/game/modules/gui/init.lua

@@ -4,6 +4,22 @@ local TileSet = require "birb.modules.assets.types.tileset"
 local barborder = love.graphics.newImage("assets/gui/barborder.png")
 local barSmall = TileSet("assets/gui/bar_small")
 
+local mask_shader = love.graphics.newShader[[
+   vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 screen_coords) {
+      if (Texel(texture, texture_coords).rgb == vec3(0.0)) {
+         // a discarded pixel wont be applied as the stencil.
+         discard;
+      }
+      return vec4(1.0);
+   }
+]]
+
+local function myStencilFunction(mask)
+  love.graphics.setShader(mask_shader)
+  love.graphics.draw(mask, 0, 0)
+  love.graphics.setShader()
+end
+
 function gui.newBorder(width, height, middlePosition)
   local tileset   = love.graphics.newImage("assets/gui/borders.png")
   local tilequad  = {}
@@ -98,58 +114,78 @@ end
 
 function gui.newTextBox(filename, width, height)
   local baseimage = love.graphics.newImage(filename)
-  local quad = {}
+  width, height = math.floor(width), math.floor(height)
-  quad[1] = love.graphics.newQuad(00, 00, 8, 8, 24, 24)
+  local quad, quad_mask = {}, {}
-  quad[2] = love.graphics.newQuad(00, 08, 8, 8, 24, 24)
+  quad[1] = love.graphics.newQuad(00, 00, 8, 8, 48, 32)
-  quad[3] = love.graphics.newQuad(00, 16, 8, 8, 24, 24)
+  quad[2] = love.graphics.newQuad(00, 08, 8, 8, 48, 32)
-  quad[4] = love.graphics.newQuad(08, 00, 8, 8, 24, 24)
+  quad[3] = love.graphics.newQuad(00, 16, 8, 8, 48, 32)
-  quad[5] = love.graphics.newQuad(08, 08, 8, 8, 24, 24)
+  quad[4] = love.graphics.newQuad(08, 00, 8, 8, 48, 32)
-  quad[6] = love.graphics.newQuad(08, 16, 8, 8, 24, 24)
+  quad[5] = love.graphics.newQuad(08, 08, 8, 8, 48, 32)
-  quad[7] = love.graphics.newQuad(16, 00, 8, 8, 24, 24)
+  quad[6] = love.graphics.newQuad(08, 16, 8, 8, 48, 32)
-  quad[8] = love.graphics.newQuad(16, 08, 8, 8, 24, 24)
+  quad[7] = love.graphics.newQuad(16, 00, 8, 8, 48, 32)
-  quad[9] = love.graphics.newQuad(16, 16, 8, 8, 24, 24)
+  quad[8] = love.graphics.newQuad(16, 08, 8, 8, 48, 32)
-  local canvas  = love.graphics.newCanvas(width, height)
+  quad[9] = love.graphics.newQuad(16, 16, 8, 8, 48, 32)
 
-  love.graphics.setCanvas( canvas )
+  quad_mask[1] = love.graphics.newQuad(24+00, 00, 8, 8, 48, 32)
+  quad_mask[2] = love.graphics.newQuad(24+00, 08, 8, 8, 48, 32)
+  quad_mask[3] = love.graphics.newQuad(24+00, 16, 8, 8, 48, 32)
+  quad_mask[4] = love.graphics.newQuad(24+08, 00, 8, 8, 48, 32)
+  quad_mask[5] = love.graphics.newQuad(24+08, 08, 8, 8, 48, 32)
+  quad_mask[6] = love.graphics.newQuad(24+08, 16, 8, 8, 48, 32)
+  quad_mask[7] = love.graphics.newQuad(24+16, 00, 8, 8, 48, 32)
+  quad_mask[8] = love.graphics.newQuad(24+16, 08, 8, 8, 48, 32)
+  quad_mask[9] = love.graphics.newQuad(24+16, 16, 8, 8, 48, 32)
+
+  local back = love.graphics.newQuad(00, 24, 8, 8, 48, 32)
+  local canvas      = love.graphics.newCanvas(width, height)
+  local backCanvas  = love.graphics.newCanvas(width, height)
+  local maskCanvas  = love.graphics.newCanvas(width, height)
 
 
-  for i=1, math.floor(width/8) do
+  love.graphics.setCanvas( backCanvas )
-    if (i == 1) then
+
-      -- first line
+  for i=1, math.ceil(width/8) do
-      for j=1, math.floor(height/8) do
+    for j=1, math.ceil(height/8), 1 do
-        if j == 1 then
+      love.graphics.draw(baseimage, back, (i-1)*8, (j-1)*8)
-          love.graphics.draw(baseimage, quad[1], (i-1)*8, (j-1)*8)
-        elseif j == math.floor(height/8) then
-          love.graphics.draw(baseimage, quad[3], (i-1)*8, (j-1)*8)
-        else
-          love.graphics.draw(baseimage, quad[2], (i-1)*8, (j-1)*8)
-        end
-      end
-    elseif (i == math.floor(width/8)) then
-      -- last line
-      for j=1, math.floor(height/8) do
-        if j == 1 then
-          love.graphics.draw(baseimage, quad[7], (i-1)*8, (j-1)*8)
-        elseif j == math.floor(height/8) then
-          love.graphics.draw(baseimage, quad[9], (i-1)*8, (j-1)*8)
-        else
-          love.graphics.draw(baseimage, quad[8], (i-1)*8, (j-1)*8)
-        end
-      end
-    else
-      -- middle lines
-      for j=1, math.floor(height/8) do
-        if j == 1 then
-          love.graphics.draw(baseimage, quad[4], (i-1)*8, (j-1)*8)
-        elseif j == math.floor(height/8) then
-          love.graphics.draw(baseimage, quad[6], (i-1)*8, (j-1)*8)
-        else
-          love.graphics.draw(baseimage, quad[5], (i-1)*8, (j-1)*8)
-        end
-      end
     end
   end
 
+  --love.graphics.setScissor(0, 0, math.floor(width/8)))
+  love.graphics.setCanvas( maskCanvas )
+  love.graphics.rectangle("fill", 0, 0, width, height)
+
+  love.graphics.draw(baseimage, quad_mask[1], 0, 0)
+  love.graphics.draw(baseimage, quad_mask[7], width- 8, 0)
+  love.graphics.draw(baseimage, quad_mask[3], 0, height- 8)
+  love.graphics.draw(baseimage, quad_mask[9], width - 8, height - 8)
+
+  love.graphics.setCanvas( {canvas, stencil = true} )
+
+  love.graphics.stencil(function () myStencilFunction(maskCanvas) end, "replace", 1)
+  love.graphics.setStencilTest("greater", 0)
+  love.graphics.draw(backCanvas)
+  love.graphics.setStencilTest()
+
+  love.graphics.setScissor(8, 0, width-15, height)
+  for i = 0, math.floor(width/8), 1 do
+    love.graphics.draw(baseimage, quad[4], i*8, 0)
+    love.graphics.draw(baseimage, quad[6], i*8, height - 8)
+  end
+
+  love.graphics.setScissor(0, 8, width, height-15)
+  for i = 0, math.floor(height/8), 1 do
+    love.graphics.draw(baseimage, quad[2], 0, i*8)
+    love.graphics.draw(baseimage, quad[8], width - 8, i * 8)
+  end
+
+  love.graphics.setScissor( )
+
+  love.graphics.draw(baseimage, quad[1], 0, 0)
+  love.graphics.draw(baseimage, quad[7], width- 8, 0)
+  love.graphics.draw(baseimage, quad[3], 0, height- 8)
+  love.graphics.draw(baseimage, quad[9], width - 8, height - 8)
+
+
   love.graphics.setCanvas( )
 
   local imagedata = canvas:newImageData()

sonic-radiance.love/scenes/menus/titlescreen/menu.lua

@@ -9,7 +9,7 @@ local defTransitions = require "birb.modules.transitions"
 local radTransitions = require "game.modules.transitions"
 
 local HPADDING = 68
-local VPADDING = 28
+local VPADDING = 30
 
 function SaveMenu:new()
     local w, h = 424 - (HPADDING * 2), 240 - (VPADDING * 2)
@@ -24,7 +24,7 @@ function SaveMenu:new()
     for i, save in ipairs(metadata) do
         SaveWidget(self.scene, i, save)
     end
-    self.textBox = gui.newTextBox("assets/gui/dialogbox.png", w - 8, (h / 3))
+    self.textBox = gui.newTextBox("assets/gui/dialogbox.png", w - 8, self.widgetSize.h - 4)
     self.isVisible = true
 end