let the user control the graph time

conf.lua

@@ -1,5 +1,18 @@
 function love.conf(t)
+  t.identity = 'box-of-eases'
+  t.version = '11.3'
+
   t.window.resizable = true
   t.window.title = 'Box of Eases'
   t.window.icon = 'logo.png'
+  t.window.msaa = 5
+
+  t.modules.audio = false
+  t.modules.data = false
+  t.modules.joystick = false
+  t.modules.math = false
+  t.modules.physics = false
+  t.modules.sound = false
+  t.modules.thread = false
+  t.modules.video = false
 end

dropdown.lua

@@ -48,6 +48,7 @@ local function insertDropdown(tab, f)
   dropdownId = dropdownId + 1
   f.selected = (self.kget(f.name) or dropdownValueCache[f.name] or {selected = 1}).selected
   f.selected = (f.selected - 1) % #f.options + 1
+  f.open = (self.kget(f.name) or {open = 0}).open
   return table.insert(tab, f)
 end
 function self.createDropdowns()
@@ -110,6 +111,14 @@ function self.update(dt)
     dropdownScroll = math.min(dropdownScroll, 0)
     dropdownScrollE = mix(dropdownScrollE, dropdownScroll, dt * 10)
   end
+
+  for i, v in ipairs(dropdowns) do
+    if i == self.openDropdown then
+      v.open = mix(v.open, 1, dt * 14)
+    else
+      v.open = mix(v.open, 0, dt * 20)
+    end
+  end
 end
 
 function self.render()
@@ -127,21 +136,21 @@ function self.render()
 
     love.graphics.rectangle('line', x, y, w, h)
     love.graphics.print(self.selected(i), x + margin/2, y + margin/2)
-    love.graphics.rectangle('line', x + w - h, y, h, h)
+    -- love.graphics.rectangle('line', x + w - h, y, h, h)
     love.graphics.polygon('line', x + w - h/2 + 0.3 * h, y + h/2 - 0.3 * h, x + w - h/2 - 0.3 * h, y + h/2 - 0.3 * h, x + w - h/2, y + h/2 + 0.3 * h)
 
-    if self.openDropdown == i then
+    if self.openDropdown == i or v.open > 0.01 then
       for i,o in ipairs(v.options) do
-        local x, y, w, h = x, y + i * h, w, h
+        local x, y, w, h = x, y + ((i - 1) * v.open + 1) * h, w, h * v.open
 
-        y = y + dropdownScrollE * h
+        y = y + dropdownScrollE * h * v.open
         local gi = y / h
         if gi > (maxDropdown + 1) or gi < 1 then
           goto continue
         end
 
         -- help
-        local a = (1 - math.min(math.max((1 - (maxDropdown - gi)) * (1 - (math.abs(dropdownScrollE) / (#v.options - maxDropdown + 1))), 0), 1)) * math.max(math.min(gi - 1, 1), 0)
+        local a = (1 - math.min(math.max((1 - (maxDropdown - gi)) * (1 - (math.abs(dropdownScrollE) / (#v.options - maxDropdown + 1))), 0), 1)) * math.max(math.min(gi - 1, 1), 0) * v.open
 
         love.graphics.setColor(0.06, 0.06, 0.12, 0.3 * a)
         if mx > x and mx < x + w and my > y and my < y + h then
@@ -165,8 +174,8 @@ function self.render()
         local scroll = math.abs(dropdownScrollE) / (#v.options - maxDropdown + 1)
         local size = margin
 
-        love.graphics.setColor(1, 1, 1, 0.9)
+        love.graphics.setColor(1, 1, 1, 0.9 * v.open)
-        love.graphics.rectangle('fill', x + w - size, y + h + scroll * (1 - displayed) * (maxDropdown - 1) * h, size, displayed * (maxDropdown - 1) * h)
+        love.graphics.rectangle('fill', x + w - size, y + h + scroll * (1 - displayed) * (maxDropdown - 1) * h * v.open, size, displayed * (maxDropdown - 1) * h * v.open)
       end
     end
   end

graph.lua

@@ -3,6 +3,10 @@ local self = {}
 local quality = 256
 local graph = {}
 
+self.touchtimer = 0
+
+local timer = 0
+
 function self.update(dt)
   for i = 1, quality do
     local a = (i - 1) / (quality - 1)
@@ -18,6 +22,22 @@ function self.update(dt)
     end
     graph[i] = mix(v, b, math.min(dt * 18, 1))
   end
+  self.touchtimer = mix(self.touchtimer, 0, dt * 2)
+
+  -- lots of math just for the timer
+  -- may need to abstract this out, somehow
+  -- todo
+  local sw, sh = love.graphics.getDimensions()
+  local csize = 10 -- preview point size
+  local size = math.min((sw - outerpadding) - ((dropdown.kget('ease2') or dropdown.kget('ease1')).x + dropdownWidth + padding), sh - outerpadding * 2 - padding * 3 - csize)
+  local x, y, w, h = sw - outerpadding - size, outerpadding, size, size
+  local mx, my = love.mouse.getPosition()
+
+  if not (love.mouse.isDown(1) and mx > x and mx < x + w and my > y and my < y + h) then
+    timer = (timer + dt) % 2
+  else
+    timer = mix(timer, (mx - x) / w, dt * 14)
+  end
 end
 
 function self.render()
@@ -43,12 +63,12 @@ function self.render()
 
     -- mixease point
     if mode == 2 then
-      love.graphics.setColor(1, 1, 1, 0.8)
+      love.graphics.setColor(1, 1, 1, 0.2 + self.touchtimer * 0.6)
-      love.graphics.line(x + margin + mixpoint * w, y, x + margin + mixpoint * w, y + h)
+      love.graphics.line(x + margin + oldmixpoint * w, y, x + margin + oldmixpoint * w, y + h)
     end
 
     -- preview point
-    local t = love.timer.getTime() % 1
+    local t = timer % 1
     love.graphics.setColor(0.4, 0.4, 1, 0.4)
     love.graphics.line(x + margin + t * w, y, x + margin + t * w, y + h)
 
@@ -81,7 +101,7 @@ function self.render()
     local a1 = ease.ease(t)
     local a2 = ease.ease(math.max(math.min(t - 0.1, 1), 0))
     local da = a1
-    if love.timer.getTime() % 2 < 1 and math.floor(ease.ease(0) + 0.5) ~= math.floor(ease.ease(1) + 0.5) then
+    if timer % 2 > 1 and math.floor(ease.ease(0) + 0.5) ~= math.floor(ease.ease(1) + 0.5) then
       da = 1 - da
     end
     if minEase then

main.lua

@@ -94,6 +94,7 @@ function love.draw()
 
     if mx > x and mx < x + w and my > y and my < y + h and love.mouse.isDown(1) and dropdown.openDropdown == 0 then
       mixpoint = (mx - x) / w
+      graph.touchtimer = 1
       dropdown.createDropdowns()
     end
   end