Navigating the board

states/game.lua

@@ -1,7 +1,15 @@
 function stateGame()
 	local board = Board.new()
 
-	function _enter()
+	local selectedId = 1
+
+	function drawSelectedTile()
+		local x, y = board:draw_coords(selectedId)
+		local w = board:getTileWidth()
+		rect2(x-1, y-1, w+2, w+2, 6)
+	end
+
+	local function _enter()
 		-- Create a board
 		repeat
 			board:reset()
@@ -41,14 +49,34 @@ function stateGame()
 		printh(board:tostring())
 	end
 
+	local function _draw()
+		board:draw()
+		drawSelectedTile()
+	end
+
+	local function _update()
+		local size = board:getSize()
+		local x, y = board:idx_xy(selectedId)
+		if btnp(UP) then
+			y -= 1
+		elseif btnp(DOWN) then
+			y += 1
+		elseif btnp(LEFT) then
+			x -= 1
+		elseif btnp(RIGHT) then
+			x += 1
+		end
+		printh(x.." "..y)
+		if (x<1) x=size
+		if (x>size) x=1
+		if (y<1) y=size
+		if (y>size) y=1
+		selectedId = board:xy_idx(x, y)
+	end
+
 	return {
 		_enter = _enter,
-		_update = function()
-
-		end,
-
-		_draw = function()
-			board:draw()
-		end,
+		_update = _update,
+		_draw = _draw,
 	}
 end

states/menu.lua

@@ -1,7 +1,7 @@
 function stateMenu()
 	local selected = 1
 
-	function onBtnDraw(btn)
+	local function onBtnDraw(btn)
 		if selected == btn.data.i then
 			btn.color = 7
 		end
@@ -18,7 +18,7 @@ function stateMenu()
 			onDraw=onBtnDraw})
 	}
 
-	function _enter()
+	local function _enter()
 
 	end
 

states/rules.lua

@@ -3,11 +3,11 @@ function stateRules()
 	local fade = split"0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,2,4,9,10,9,4,2,1"
 	local color = 1
 
-	function blink(x,y,w,h)
+	local function blink(x,y,w,h)
 		rect2(x,y,w,h,fade[color])
 	end
 
-	function goBack()
+	local function goBack()
 		setState(states.menu)
 	end