From 3da02b2aa5375dc4aea98a82e744599623a6b6cb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Juhani=20Krekel=C3=A4?= <juhani@krekelä.fi>
Date: Sat, 29 Jun 2019 11:21:09 +0300
Subject: [PATCH] Move in one direction by holding down the key

---
 bundle/main.lua | 88 +++++++++++++++++++++++++++++--------------------
 1 file changed, 53 insertions(+), 35 deletions(-)

diff --git a/bundle/main.lua b/bundle/main.lua
index a10b33a..a40e898 100644
--- a/bundle/main.lua
+++ b/bundle/main.lua
@@ -12,6 +12,10 @@ local player_x = nil
 local player_y = nil
 local player_direction = nil
 
+local last_key_pressed = nil
+local last_direction_moved = nil
+local move_repeat_counter = nil
+
 -- ------------------------------------------------------------------
 -- Cavern generation
 -- ------------------------------------------------------------------
@@ -510,63 +514,77 @@ function movePlayer(direction)
 end
 
 -- ------------------------------------------------------------------
--- Callbacks
+-- Gameloop functions
 -- ------------------------------------------------------------------
-
-function love.load()
-	math.randomseed(os.time())
-
+function newGame()
 	generateCavern()
 	spawnPlayer()
 	generateVisibilityMap()
 	initializeRememberedCavern()
 end
 
+function step(direction)
+	if last_direction_moved == direction then
+		-- Repeat faster after the initial threshold for repetition has been met
+		move_repeat_counter = 0.1
+	else
+		last_direction_moved = direction
+		move_repeat_counter = 0.3
+	end
+
+	rememberVisible()
+	movePlayer(direction)
+	generateVisibilityMap()
+end
+
+-- ------------------------------------------------------------------
+-- Callbacks
+-- ------------------------------------------------------------------
+
+function love.load()
+	math.randomseed(os.time())
+
+	newGame()
+end
+
 function love.update(dt)
+	if move_repeat_counter ~= nil and move_repeat_counter > 0 then
+		move_repeat_counter = move_repeat_counter - dt
+		if move_repeat_counter <= 0 then
+			step(last_direction_moved)
+		end
+	end
 end
 
 function love.keypressed(key)
+	last_key_pressed = key
 	if key == 'r' then
-		generateCavern()
-		spawnPlayer()
-		generateVisibilityMap()
-		initializeRememberedCavern()
+		newGame()
 	elseif key == 'i' then
-		rememberVisible()
-		movePlayer(directions.up)
-		generateVisibilityMap()
+		step(directions.up)
 	elseif key == 'j' then
-		rememberVisible()
-		movePlayer(directions.left)
-		generateVisibilityMap()
+		step(directions.left)
 	elseif key == 'k' then
-		rememberVisible()
-		movePlayer(directions.down)
-		generateVisibilityMap()
+		step(directions.down)
 	elseif key == 'l' then
-		rememberVisible()
-		movePlayer(directions.right)
-		generateVisibilityMap()
+		step(directions.right)
 	elseif key == 'u' then
-		rememberVisible()
-		movePlayer(directions.upleft)
-		generateVisibilityMap()
+		step(directions.upleft)
 	elseif key == 'm' then
-		rememberVisible()
-		movePlayer(directions.downleft)
-		generateVisibilityMap()
+		step(directions.downleft)
 	elseif key == '.' then
-		rememberVisible()
-		movePlayer(directions.downright)
-		generateVisibilityMap()
+		step(directions.downright)
 	elseif key == 'o' then
-		rememberVisible()
-		movePlayer(directions.upright)
-		generateVisibilityMap()
+		step(directions.upright)
 	elseif key == 'q' then
 		love.event.quit()
-	else
-		display_inputinfo_counter = 1
+	end
+end
+
+function love.keyreleased(key)
+	if last_key_pressed == key then
+		last_direction_moved = nil
+		move_repeat_counter = nil
 	end
 end