Click to switch tiles

states/game.lua

@@ -22,11 +22,26 @@ function state_game()
 		local x, y = board:draw_coords(selected_id)
 		local w = board:get_tile_width()
 		-- fillp(▒)
-		rect2(x-1, y-1, w+1, w+1, 6)
+		rect2(x-1, y-1, w, w, 6)
 		line()
 	 	fillp(█)
 	end
 
+	local mx,mx = 0,0
+	local function update_mouse()
+		-- update mouse position
+		if mx == mouse_x and my == mouse_y then return end
+		mx,my = mouse_x, mouse_y
+		local board_x, board_y = board:draw_coords(1)
+		local tw = board:get_tile_width()
+		local bw = board:get_size()
+		-- pixels coords to grid coords
+		local x = mid(1, (mouse_x - board_x) \ tw + 1, bw)
+		local y = mid(1, (mouse_y - board_y) \ tw + 1, bw)
+		selected_id = board:xy_idx(x,y)
+		printh("x: " .. x .. " y: " .. y .. " id: " .. selected_id)
+	end
+
 	local function _enter(_board)
 		board = _board
 		-- lock the initial tiles
@@ -68,26 +83,35 @@ function state_game()
 	local function _update()
 		local size = board:get_size()
 		local x, y = board:idx_xy(selected_id)
+		local moved = false
 		if btnp(UP) then
+			moved = true
 			y -= 1
 		elseif btnp(DOWN) then
+			moved = true
 			y += 1
 		elseif btnp(LEFT) then
+			moved = true
 			x -= 1
 		elseif btnp(RIGHT) then
+			moved = true
 			x += 1
 		end
+		if moved then
+			selected_id = board:xy_idx(x, y)
+		end
 
-		if btnp(BTN_O) then
+		if btnp(BTN_X) then
 			board:try_flip_tile(selected_id)
 			show_clues()
 		end
 
+		update_mouse()
+
 		if (x<1) x=size
 		if (x>size) x=1
 		if (y<1) y=size
 		if (y>size) y=1
-		selected_id = board:xy_idx(x, y)
 	end
 
 	return {