move repeatedly in direction

input.lua

@@ -3,8 +3,48 @@ Input = {}
 Input.playermovekeys = { up = "up", down = "down", left = "left", right = "right" }
 Input.playerswitchkeys = { ["1"] = "1", ["2"] = "2", ["3"] = "3"}
 Input.colorfromkey = {"red", "green", "blue"}
+Input.moveRepeatDelay = .28
+Input.moveRepeatInterval = .09
+Input.heldMoveKey = nil
+Input.moveRepeatElapsed = 0
+Input.moveRepeatStarted = false
 
 function Input:handler(dt)
+	local key = self.heldMoveKey
+	if key and not love.keyboard.isDown(key) then
+		key = nil
+		for _, candidate in ipairs({"up", "down", "left", "right"}) do
+			if love.keyboard.isDown(candidate) then key = candidate; break end
+		end
+		self.heldMoveKey = key
+		self.moveRepeatElapsed = 0
+		self.moveRepeatStarted = false
+	end
+
+	if not key then return nil end
+	self.moveRepeatElapsed = self.moveRepeatElapsed + dt
+	if not self.moveRepeatStarted then
+		if self.moveRepeatElapsed >= self.moveRepeatDelay then
+			self.moveRepeatElapsed = 0
+			self.moveRepeatStarted = true
+			return key
+		end
+	elseif self.moveRepeatElapsed >= self.moveRepeatInterval then
+		self.moveRepeatElapsed = 0
+		return key
+	end
+end
+
+function Input:beginMove(key)
+	self.heldMoveKey = key
+	self.moveRepeatElapsed = 0
+	self.moveRepeatStarted = false
+end
+
+function Input:stopMoveRepeat()
+	self.heldMoveKey = nil
+	self.moveRepeatElapsed = 0
+	self.moveRepeatStarted = false
 
 end
 
@@ -24,4 +64,4 @@ end
 
 function Input.playerColor(key)
 	return Input.colorfromkey[tonumber(key)]
-end
+end