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Button functions fixes #89

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Button functions fixes #89

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6b8dac2
fixed button functions being case-sensitive
Feb 10, 2026
45fb83f
fixed buttons constants not being numbers
Feb 12, 2026
72e3099
fixed playdate.getButtonState() implementation to return bit masks
Feb 12, 2026
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62 changes: 52 additions & 10 deletions playdate/playdate.lua
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Original file line number Diff line number Diff line change
Expand Up @@ -76,12 +76,21 @@ module._buttonToKey = {
b = "kb_a",
}

module.kButtonA = "a"
module.kButtonB = "b"
module.kButtonUp = "up"
module.kButtonDown = "down"
module.kButtonLeft = "left"
module.kButtonRight = "right"
module.kButtonA = 32
module.kButtonB = 16
module.kButtonUp = 4
module.kButtonDown = 8
module.kButtonLeft = 1
module.kButtonRight = 2

local flagToButton = {
[module.kButtonLeft] = "left",
[module.kButtonRight] = "right",
[module.kButtonUp] = "up",
[module.kButtonDown] = "down",
[module.kButtonB] = "b",
[module.kButtonA] = "a",
}

local NONE = 0
local JUST_PRESSED = 1
Expand All @@ -91,6 +100,12 @@ local JUST_RELEASED = 3
local inputStates = {}

function module.buttonIsPressed(button)
if type(button) == "number" then
button = flagToButton[button]
else
button = string.lower(button)
end

local key = module._buttonToKey[button]
if not inputStates[key] then
-- no entry, assume no input
Expand All @@ -101,6 +116,12 @@ function module.buttonIsPressed(button)
end

function module.buttonJustPressed(button)
if type(button) == "number" then
button = flagToButton[button]
else
button = string.lower(button)
end

local key = module._buttonToKey[button]
if not inputStates[key] then
-- no entry, assume no input
Expand All @@ -111,6 +132,12 @@ function module.buttonJustPressed(button)
end

function module.buttonJustReleased(button)
if type(button) == "number" then
button = flagToButton[button]
else
button = string.lower(button)
end

local key = module._buttonToKey[button]
if not inputStates[key] then
-- no entry, assume no input
Expand All @@ -120,10 +147,25 @@ function module.buttonJustReleased(button)
return inputStates[key] == JUST_RELEASED
end

function module.getButtonState(button)
local key = module._buttonToKey[button]
local value = inputStates[key]
return value == PRESSED, value == PRESSED, value == JUST_RELEASED
function module.getButtonState()
local current, pressed, released = 0, 0, 0

for mask, button in pairs(flagToButton) do
local key = module._buttonToKey[button]
local value = inputStates[key]

if value == PRESSED then
current = current + mask

elseif value == JUST_PRESSED then
pressed = pressed + mask

elseif value == JUST_RELEASED then
released = released + mask
end
end

return current, pressed, released
end

function module.isCrankDocked()
Expand Down