Display number of found treasures in GUI

mods/lzr_gui/init.lua

@@ -5,6 +5,59 @@ lzr_gui = {}
 
 local hud_ids = {}
 
+lzr_gui.hide_treasure_status = function(player)
+	local name = player:get_player_name()
+	if hud_ids[name].treasures_img then
+		player:hud_remove(hud_ids[name].treasures_img)
+		hud_ids[name].treasures_img = nil
+	end
+	if hud_ids[name].treasures_cnt then
+		player:hud_remove(hud_ids[name].treasures_cnt)
+		hud_ids[name].treasures_cnt = nil
+	end
+end
+
+lzr_gui.update_treasure_status = function(player, treasures, total_treasures)
+	local name = player:get_player_name()
+	if not hud_ids[name].treasures_img then
+		local id = player:hud_add({
+			hud_elem_type = "image",
+			position = { x = 1, y = 1 },
+			name = "treasure_img",
+			text = "lzr_treasure_gold_block.png",
+			alignment = { x = -1, y = -1 },
+			offset = { x = -10, y = -20 },
+			scale = { x = 3, y = 3 },
+			size = { x = 3, y = 3 },
+			z_index = 0,
+		})
+		hud_ids[name].treasures_img = id
+	end
+	local treasure_text = S("@1 / @2", treasures, total_treasures)
+	local color = 0xFFFFFFFF
+	if treasures >= total_treasures then
+		color = 0xFF00FF00
+	end
+	if not hud_ids[name].treasures_cnt then
+		local id = player:hud_add({
+			hud_elem_type = "text",
+			position = { x = 1, y = 1 },
+			name = "treasure_cnt",
+			text = treasure_text,
+			number = color,
+			alignment = { x = -1, y = -1 },
+			offset = { x = -70, y = -20 },
+			scale = { x = 100, y = 100 },
+			size = { x = 3, y = 3 },
+			z_index = 0,
+		})
+		hud_ids[name].treasures_cnt = id
+	else
+		player:hud_change(hud_ids[name].treasures_cnt, "text", treasure_text)
+		player:hud_change(hud_ids[name].treasures_cnt, "number", color)
+	end
+end
+
 lzr_gui.set_play_gui = function(player)
 	player:hud_set_hotbar_itemcount(3)
 	player:hud_set_hotbar_image("lzr_gui_hotbar_3.png")
@@ -31,6 +84,17 @@ lzr_gui.set_editor_gui = function(player)
 	})
 	local name = player:get_player_name()
 	hud_ids[name].editor_mode = id
+	lzr_gui.hide_treasure_status(player)
+end
+lzr_gui.set_menu_gui = function(player)
+	player:hud_set_hotbar_itemcount(3)
+	player:hud_set_hotbar_image("lzr_gui_hotbar_3.png")
+	local name = player:get_player_name()
+	if hud_ids[name].editor_mode then
+		player:hud_remove(hud_ids[name].editor_mode)
+		hud_ids[name].editor_mode = nil
+	end
+	lzr_gui.hide_treasure_status(player)
 end
 
 minetest.register_on_joinplayer(function(player)

mods/lzr_laser/physics.lua

@@ -231,12 +231,17 @@ function lzr_laser.check_detectors_in_area(pos1, pos2)
 	return true
 end
 
--- Return true if there are no unopened treasures remaining
+-- Returns true if there are no unclaimed treasures remaining
 function lzr_laser.check_treasures_in_area(pos1, pos2)
 	local closed_chests = minetest.find_nodes_in_area(pos1, pos2, {"group:chest_closed"})
 	return #closed_chests > 0
 end
 
+-- Returns the number of treasures found in current level
+function lzr_laser.count_found_treasures(pos1, pos2)
+	return #minetest.find_nodes_in_area(pos1, pos2, {"group:chest_open"})
+end
+
 -- Returns true if player has no detectors in inventory
 function lzr_laser.check_inventory_detectors(player, detector_placed)
 	local inv = player:get_inventory()

mods/lzr_levels/init.lua

@@ -25,6 +25,12 @@ local set_level_size = function(new_size)
 	minetest.log("verbose", "[lzr_levels] Level size set to: "..minetest.pos_to_string(new_size))
 end
 
+local get_max_treasures = function()
+	if current_level then
+		return level_data[current_level].treasures
+	end
+end
+
 -- Mod storage for game progress
 local mod_storage = minetest.get_mod_storage()
 
@@ -65,14 +71,19 @@ local analyze_levels = function()
 		local schem = minetest.read_schematic(filepath, {write_yslice_prob="none"})
 		assert(schem, "Could not load level file: "..filename)
 		level_data[l].contains_rotatable_block = false
+		level_data[l].treasures = 0
 		level_data[l].size = schem.size
 		local size = level_data[l].size
 		for d=1, #schem.data do
 			local nodename = schem.data[d].name
 			local is_rotatable = minetest.get_item_group(nodename, "rotatable") == 1
+			local treasure = minetest.get_item_group(nodename, "chest_closed") > 0
 			if is_rotatable then
 				level_data[l].contains_rotatable_block = true
 			end
+			if treasure then
+				level_data[l].treasures = level_data[l].treasures + 1
+			end
 			if nodename == "lzr_teleporter:teleporter_off" then
 				local start = flat_index_to_pos(d, size)
 				start = vector.add(start, vector.new(0, 0.5, 0))
@@ -155,10 +166,14 @@ local emerge_callback = function(blockpos, action, calls_remaining, param)
 					player:set_look_horizontal(param.yaw)
 					player:set_look_vertical(0)
 				end
-			end
-			if param.level then
-				lzr_messages.show_message(player, lzr_levels.get_level_name(param.level), 3)
-				minetest.sound_play({name = "lzr_levels_level_enter", gain = 1}, {to_player=player:get_player_name()}, true)
+				local gs = lzr_gamestate.get_state()
+				if gs == lzr_gamestate.LEVEL then
+					lzr_gui.update_treasure_status(player, 0, get_max_treasures())
+				end
+				if param.level then
+					lzr_messages.show_message(player, lzr_levels.get_level_name(param.level), 3)
+					minetest.sound_play({name = "lzr_levels_level_enter", gain = 1}, {to_player=player:get_player_name()}, true)
+				end
 			end
 			minetest.log("action", "[lzr_levels] Room emerge callback done")
 		end
@@ -380,6 +395,13 @@ function lzr_levels.restart_level()
 	end
 end
 
+-- To be called when a treasure has been found (only in game mode LEVEL!)
+function lzr_levels.found_treasure()
+	local treasures = lzr_laser.count_found_treasures(lzr_globals.PLAYFIELD_START, lzr_globals.PLAYFIELD_END)
+	local player = get_singleplayer()
+	lzr_gui.update_treasure_status(player, treasures, get_max_treasures())
+end
+
 minetest.register_chatcommand("restart", {
 	privs = {},
 	params = "",

mods/lzr_menu/init.lua

@@ -68,7 +68,7 @@ lzr_gamestate.register_on_enter_state(function(state)
 	if state == lzr_gamestate.MENU then
 		local player = minetest.get_player_by_name("singleplayer")
 		lzr_player.set_play_inventory(player)
-		lzr_gui.set_play_gui(player)
+		lzr_gui.set_menu_gui(player)
 	end
 end)
 

mods/lzr_treasure/init.lua

@@ -31,6 +31,7 @@ local register_chest = function(id, def)
 			minetest.log("action", "[lzr_treasure] "..puncher:get_player_name().." opens "..node.name.." at "..minetest.pos_to_string(pos))
 			minetest.set_node(pos, {name="lzr_treasure:chest_"..id.."_open_"..treasure_id, param2=node.param2})
 			minetest.sound_play({name=sound_open, gain=0.5}, {pos=pos}, true)
+			lzr_levels.found_treasure()
 			local timer = minetest.get_node_timer(pos)
 			timer:start(1)
 		end,