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dropdown open animation

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This commit is contained in:
jill 2021-09-18 02:26:40 +03:00
parent ed5f93104d
commit 34fdd83ab3
1 changed files with 15 additions and 6 deletions
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21
dropdown.lua
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@ -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()
@ -130,18 +139,18 @@ function self.render()
-- 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.rectangle('fill', x + w - size, y + h + scroll * (1 - displayed) * (maxDropdown - 1) * h, size, displayed * (maxDropdown - 1) * h)
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 * v.open, size, displayed * (maxDropdown - 1) * h * v.open)
end
end
end