Replace hotbar_itemcount by hotbar_source

doc/lua_api.md

@@ -8494,7 +8494,7 @@ child will follow movement and rotation of that bone.
 * `get_inventory()`: returns an `InvRef` for players, otherwise returns `nil`
 * `get_wield_list()`: returns the name of the inventory list the wielded item
    is in.
-* `get_wield_index()`: returns the wield list index of the wielded item (starting with 1)
+* `get_wield_index()`: returns the index of the wielded item in the wield list
 * `get_wielded_item()`: returns a copy of the wielded item as an `ItemStack`
 * `set_wielded_item(item)`: replaces the wielded item, returns `true` if
   successful.
@@ -8870,8 +8870,16 @@ child will follow movement and rotation of that bone.
 * `hud_set_hotbar_itemcount(count)`: sets number of items in builtin hotbar
     * `count`: number of items, must be between `1` and `32`
     * If `count` exceeds the `"main"` list size, the list size will be used instead.
-* `hud_get_hotbar_itemcount()`: returns number of visible items
-    * This value is also clamped by the `"main"` list size.
+    * equal `set_hotbar_source({{list = "main", length = count}})`
+* `hud_get_hotbar_itemcount()`: returns number of selectable items
+* `get_hotbar_source()` returns used `hotbar_source`
+* `set_hotbar_source({{list = "main", length = 6, offset = 24}, {list = "bag1", length = 4}, ...})`
+    * Sets inventory lists for the player to use in hotbar(s) and to select the wield item from.
+      `list` is a player inventory list
+      `length` is the amount of inventory slots
+      `offset` adjusts starting inventory position, 0 if not specified
+    * Note: Do not use this together with mods that rely on a fixed wield list and list size.
+      All mods should use `get_wield_list()` and `get_wield_index()` to get the wield position.
 * `hud_set_hotbar_image(texturename)`
     * sets background image for hotbar
 * `hud_get_hotbar_image()`: returns texturename

games/devtest/mods/testhud/init.lua

@@ -212,63 +212,104 @@ core.register_chatcommand("zoomfov", {
 
 local hud_hotbar_defs = {
 	{
-		type = "hotbar",
-		position = {x=0.2, y=0.5},
-		direction = 0,
-		alignment = {x=1, y=-1},
-	},
-	{
-		type = "hotbar",
-		position = {x=0.2, y=0.5},
-		direction = 2,
-		alignment = {x=1, y=1},
+		{
+			type = "hotbar",
+			position = {x=0.2, y=0.5},
+			direction = 1,
+			alignment = {x=1, y=-1},
+		},
+		{
+			type = "hotbar",
+			position = {x=0.2, y=0.5},
+			direction = 3,
+			alignment = {x=1, y=1},
+		},
+		{
+			type = "hotbar",
+			position = {x=0.7, y=0.5},
+			direction = 0,
+			offset = {x=140, y=20},
+			alignment = {x=-1, y=-1},
+		},
+		{
+			type = "hotbar",
+			position = {x=0.7, y=0.5},
+			direction = 2,
+			offset = {x=140, y=20},
+			alignment = {x=-1, y=1},
+		},
 	},
 	{
-		type = "hotbar",
-		position = {x=0.7, y=0.5},
-		direction = 0,
-		offset = {x=140, y=20},
-		alignment = {x=-1, y=-1},
-	},
-	{
-		type = "hotbar",
-		position = {x=0.7, y=0.5},
-		direction = 2,
-		offset = {x=140, y=20},
-		alignment = {x=-1, y=1},
-	},
+		hotbar_source = {
+			{list = "craft", length = 4, offset = 3},
+			{list = "main", length = 5, offset = 0},
+			{list = "main", length = 2, offset = 4},
+			{list = "craft", length = 4, offset = 3},
+		},
+		hotbar_image = "default_stone.png^[opacity:150",
+		{
+			type = "hotbar",
+			position = {x=0.5, y=0.8},
+			direction = 1,
+		},
+		{
+			type = "hotbar",
+			position = {x=0.2, y=0.5},
+			direction = 2,
+		},
+		{
+			type = "hotbar",
+			position = {x=0.8, y=0.5},
+			direction = 3,
+		},
+	}
 }
 
 
 local player_hud_hotbars= {}
 core.register_chatcommand("hudhotbars", {
 	description = "Shows some test Lua HUD elements of type hotbar. " ..
-			"(add: Adds elements (default). remove: Removes elements)",
-	params = "[ add | remove ]",
-	func = function(name, params)
+			"(Cycles between tests for: none, aligned all direction and offset," ..
+			"changed hotbar_source all direction and hotbar image)",
+	func = function(name)
 		local player = core.get_player_by_name(name)
 		if not player then
 			return false, "No player."
 		end
 
 		local id_table = player_hud_hotbars[name]
 		if not id_table then
-			id_table = {}
+			id_table = {mode = 0}
 			player_hud_hotbars[name] = id_table
 		end
 
-		if params == "remove" then
-			for _, id in ipairs(id_table) do
-				player:hud_remove(id)
-			end
+		id_table.mode = (id_table.mode + 1) % (#hud_hotbar_defs + 1)
+
+		-- Reset
+		for _, id in ipairs(id_table) do
+			player:hud_remove(id)
+		end
+		player:hud_set_hotbar_itemcount(8)
+		player:hud_set_hotbar_image("")
+
+		if id_table.mode == 0 then
 			return true, "Hotbars removed."
 		end
 
-		-- params == "add" or default
-		for _, def in ipairs(hud_hotbar_defs) do
+		for _, def in ipairs(hud_hotbar_defs[id_table.mode]) do
 			table.insert(id_table, player:hud_add(def))
 		end
-		return true, #hud_hotbar_defs .." Hotbars added."
+
+		if hud_hotbar_defs[id_table.mode].hotbar_source then
+			player:set_hotbar_source(hud_hotbar_defs[id_table.mode].hotbar_source)
+		end
+
+		if hud_hotbar_defs[id_table.mode].hotbar_image then
+			player:hud_set_hotbar_image(hud_hotbar_defs[id_table.mode].hotbar_image)
+		end
+
+
+		return true, #hud_hotbar_defs[id_table.mode] .." Hotbars added."
 	end
 })
 

games/devtest/mods/unittests/player.lua

@@ -183,9 +183,32 @@ end
 unittests.register("test_player_add_pos", run_player_add_pos_tests, {player=true})
 
 --
--- Hotbar selection clamp
+-- Hotbar Source
 --
-local function run_player_hotbar_clamp_tests(player)
+
+local function table_equals(t1, t2)
+	local keys = {}
+	local checked = {}
+	for k, v in pairs(t1) do
+		if type(v) == "table" then
+			if not (checked[v] or table_equals(v, t2[k])) then
+				return false
+			end
+			checked[v] = true
+		elseif t2[k] ~= v then
+			return false
+		end
+		keys[k] = true
+	end
+	for k, _ in pairs(t2) do
+		if not keys[k] then
+			return false
+		end
+	end
+	return true
+end
+
+local function run_player_hotbar_source_tests(player)
 	local inv = player:get_inventory()
 	local old_inv_size = inv:get_size("main")
 	local old_inv_list = inv:get_list("main") -- Avoid accidentally removing item
@@ -195,15 +218,23 @@ local function run_player_hotbar_clamp_tests(player)
 
 	player:hud_set_hotbar_itemcount(2)
 	assert(player:hud_get_hotbar_itemcount() == 2)
+	assert(table_equals(player:get_hotbar_source(), {{list = "main", length = 2, offset = 0}}))
 
+	-- Test clamp
 	player:hud_set_hotbar_itemcount(6)
 	assert(player:hud_get_hotbar_itemcount() == 5)
+	assert(table_equals(player:get_hotbar_source(), {{list = "main", length = 5, offset = 0}}))
+
+	local hotbar_source = {{list = "test", length = 4, offset = 2}, {list = "myinv", length = 16, offset = 99}}
+	player:set_hotbar_source(hotbar_source)
+	assert(table_equals(player:get_hotbar_source(), hotbar_source))
+	assert(player:hud_get_hotbar_itemcount() == 20)
 
 	inv:set_size("main", old_inv_size)
 	inv:set_list("main", old_inv_list)
 	player:hud_set_hotbar_itemcount(old_bar_size)
 end
-unittests.register("test_player_hotbar_clamp", run_player_hotbar_clamp_tests, {player=true})
+unittests.register("test_player_hotbar_source", run_player_hotbar_source_tests, {player=true})
 
 --
 -- Player GUID

src/client/game.cpp

@@ -1637,7 +1637,7 @@ void Game::processItemSelection(u16 *new_playeritem)
 	LocalPlayer *player = client->getEnv().getLocalPlayer();
 
 	*new_playeritem = player->getWieldIndex();
-	u16 max_item = player->getMaxHotbarItemcount();
+	u16 max_item = player->hotbar_source.getMaxLength();
 	if (max_item == 0)
 		return;
 	max_item -= 1;
@@ -1689,9 +1689,14 @@ void Game::dropSelectedItem(bool single_item)
 	IDropAction *a = new IDropAction();
 	a->count = single_item ? 1 : 0;
 	a->from_inv.setCurrentPlayer();
-	a->from_list = "main";
-	a->from_i = client->getEnv().getLocalPlayer()->getWieldIndex();
-	client->inventoryAction(a);
+
+	LocalPlayer *player = client->getEnv().getLocalPlayer();
+	u16 index;
+	if (player->hotbar_source.getInventoryFromWieldIndex(player->getWieldIndex(),
+			a->from_list, index)) {
+		a->from_i = index;
+		client->inventoryAction(a);
+	}
 }
 
 void Game::openConsole(float scale, const wchar_t *line)