lua: hud library

res/layouts/inventory.xml.lua

@@ -9,7 +9,3 @@ end
 function inventory_share_func(invid, slotid)
     inventory.set(invid, slotid, 0, 0)
 end
-
-function inventory_reposition()
-    return 10, gui.get_viewport()[2] - document.root.size[2] - 100
-end

src/frontend/InventoryView.cpp

@@ -310,6 +310,11 @@ std::shared_ptr<Inventory> InventoryView::getInventory() const {
     return inventory;
 }
 
+
+size_t InventoryView::getSlotsCount() const {
+    return slots.size();
+}
+
 void InventoryView::bind(
     std::shared_ptr<Inventory> inventory,
     LevelFrontend* frontend, 

src/frontend/InventoryView.h

@@ -117,6 +117,8 @@ public:
 
     std::shared_ptr<Inventory> getInventory() const;
 
+    size_t getSlotsCount() const;
+
     static void createReaders(gui::UiXmlReader& reader);
 
     static const int SLOT_INTERVAL = 4;

src/frontend/hud.cpp

@@ -48,6 +48,7 @@
 #include "../core_defs.h"
 #include "../items/ItemDef.h"
 #include "../items/Inventory.h"
+#include "../items/Inventories.h"
 #include "../logic/scripting/scripting.h"
 
 using namespace gui;
@@ -94,7 +95,7 @@ std::shared_ptr<gui::UINode> HudElement::getNode() const {
     return node;
 }
 
-std::shared_ptr<UINode> HudRenderer::createDebugPanel(Engine* engine) {
+std::shared_ptr<UINode> Hud::createDebugPanel(Engine* engine) {
     auto level = frontend->getLevel();
 
     auto panel = std::make_shared<Panel>(glm::vec2(250, 200), glm::vec4(5.0f), 2.0f);
@@ -204,7 +205,7 @@ std::shared_ptr<UINode> HudRenderer::createDebugPanel(Engine* engine) {
     return panel;
 }
 
-std::shared_ptr<InventoryView> HudRenderer::createContentAccess() {
+std::shared_ptr<InventoryView> Hud::createContentAccess() {
     auto level = frontend->getLevel();
     auto content = level->content;
     auto indices = content->getIndices();
@@ -234,7 +235,7 @@ std::shared_ptr<InventoryView> HudRenderer::createContentAccess() {
     return view;
 }
 
-std::shared_ptr<InventoryView> HudRenderer::createHotbar() {
+std::shared_ptr<InventoryView> Hud::createHotbar() {
     auto level = frontend->getLevel();
     auto player = level->player;
     auto inventory = player->getInventory();
@@ -250,7 +251,7 @@ std::shared_ptr<InventoryView> HudRenderer::createHotbar() {
     return view;
 }
 
-HudRenderer::HudRenderer(Engine* engine, LevelFrontend* frontend) 
+Hud::Hud(Engine* engine, LevelFrontend* frontend) 
     : assets(engine->getAssets()), 
       gui(engine->getGUI()),
       frontend(frontend)
@@ -300,7 +301,7 @@ HudRenderer::HudRenderer(Engine* engine, LevelFrontend* frontend)
     gui->add(grabbedItemView);
 }
 
-HudRenderer::~HudRenderer() {
+Hud::~Hud() {
     // removing all controlled ui
     gui->remove(grabbedItemView);
     for (auto& element : elements) {
@@ -312,13 +313,13 @@ HudRenderer::~HudRenderer() {
     gui->remove(debugPanel);
 }
 
-void HudRenderer::drawDebug(int fps){
+void Hud::drawDebug(int fps){
     this->fps = fps;
     fpsMin = min(fps, fpsMin);
     fpsMax = max(fps, fpsMax);
 }
 
-void HudRenderer::update(bool visible) {
+void Hud::update(bool visible) {
     auto level = frontend->getLevel();
     auto player = level->player;
     auto menu = gui->getMenu();
@@ -391,7 +392,7 @@ void HudRenderer::update(bool visible) {
 /** 
  * Show inventory on the screen and turn on inventory mode blocking movement
  */
-void HudRenderer::openInventory() {
+void Hud::openInventory() {
     auto level = frontend->getLevel();
     auto player = level->player;
     auto inventory = player->getInventory();
@@ -404,17 +405,48 @@ void HudRenderer::openInventory() {
     add(HudElement(hud_element_mode::inventory_bound, inventoryDocument, inventoryView, false));
 }
 
+/**
+ * Show player inventory + block UI
+ * @param block world position of the open block
+ * @param doc block UI document (root element must be an InventoryView)
+ * @param blockinv block inventory. 
+ * In case of nullptr a new virtual inventory will be created
+ */
+void Hud::openInventory(glm::ivec3 block, UiDocument* doc, std::shared_ptr<Inventory> blockinv) {
+    auto level = frontend->getLevel();
+    blockUI = std::dynamic_pointer_cast<InventoryView>(doc->getRoot());
+    if (blockUI == nullptr) {
+        throw std::runtime_error("block UI root element must be 'inventory'");
+    }
+    openInventory();
+    if (blockinv == nullptr) {
+        blockinv = level->inventories->createVirtual(blockUI->getSlotsCount());
+    }
+    blockUI->bind(blockinv, frontend, interaction.get());
+    add(HudElement(hud_element_mode::inventory_bound, doc, blockUI, false));
+}
+
 /**
  * Hide inventory and turn off inventory mode
  */
-void HudRenderer::closeInventory() {
+void Hud::closeInventory() {
+    auto level = frontend->getLevel();
+
     inventoryOpen = false;
     ItemStack& grabbed = interaction->getGrabbedItem();
     grabbed.clear();
     inventoryView = nullptr;
+    if (blockUI) {
+        auto blockinv = blockUI->getInventory();
+        // todo: do it automatically
+        if (blockinv->isVirtual()) {
+            level->inventories->remove(blockinv->getId());   
+        }
+        blockUI = nullptr;
+    }
 }
 
-void HudRenderer::add(HudElement element) {
+void Hud::add(HudElement element) {
     gui->add(element.getNode());
     auto invview = std::dynamic_pointer_cast<InventoryView>(element.getNode());
     auto document = element.getDocument();
@@ -429,7 +461,7 @@ void HudRenderer::add(HudElement element) {
     elements.push_back(element);
 }
 
-void HudRenderer::remove(HudElement& element) {
+void Hud::remove(HudElement& element) {
     auto document = element.getDocument();
     if (document) {
         Inventory* inventory = nullptr;
@@ -442,7 +474,7 @@ void HudRenderer::remove(HudElement& element) {
     gui->remove(element.getNode());
 }
 
-void HudRenderer::draw(const GfxContext& ctx){
+void Hud::draw(const GfxContext& ctx){
     auto level = frontend->getLevel();
     auto player = level->player;
 
@@ -499,24 +531,24 @@ void HudRenderer::draw(const GfxContext& ctx){
         contentAccessPanel->setCoord(glm::vec2(width-caWidth, 0));
 
         glm::vec2 invSize = inventoryView->getSize();
-        //inventoryView->setCoord(glm::vec2(
-        //    glm::min(width/2-invSize.x/2, width-caWidth-10-invSize.x), 
-        //    height/2-invSize.y/2
-        //));
+        inventoryView->setCoord(glm::vec2(
+            glm::min(width/2-invSize.x/2, width-caWidth-10-invSize.x), 
+            height/2-invSize.y/2
+        ));
     }
     grabbedItemView->setCoord(glm::vec2(Events::cursor));
     batch->render();
 }
 
-bool HudRenderer::isInventoryOpen() const {
+bool Hud::isInventoryOpen() const {
     return inventoryOpen;
 }
 
-bool HudRenderer::isPause() const {
+bool Hud::isPause() const {
     return pause;
 }
 
-void HudRenderer::setPause(bool pause) {
+void Hud::setPause(bool pause) {
     if (this->pause == pause) {
         return;
     }

src/frontend/hud.h

@@ -16,6 +16,7 @@ class Player;
 class Level;
 class Engine;
 class SlotView;
+class Inventory;
 class InventoryView;
 class LevelFrontend;
 class UiDocument;
@@ -59,7 +60,7 @@ public:
 	}
 };
 
-class HudRenderer {
+class Hud {
     Assets* assets;
 	std::unique_ptr<Camera> uicamera;
 
@@ -83,13 +84,15 @@ class HudRenderer {
 	std::vector<HudElement> elements;
 
     std::shared_ptr<InventoryView> inventoryView = nullptr;
+	std::shared_ptr<InventoryView> blockUI = nullptr;
+	glm::ivec3 currentblock {};
 
     std::shared_ptr<gui::UINode> createDebugPanel(Engine* engine);
     std::shared_ptr<InventoryView> createContentAccess();
     std::shared_ptr<InventoryView> createHotbar();
 public:
-	HudRenderer(Engine* engine, LevelFrontend* frontend);
-	~HudRenderer();
+	Hud(Engine* engine, LevelFrontend* frontend);
+	~Hud();
 
 	void update(bool hudVisible);
 	void draw(const GfxContext& context);
@@ -100,6 +103,7 @@ public:
     void setPause(bool pause);
 
     void openInventory();
+	void openInventory(glm::ivec3 block, UiDocument* doc, std::shared_ptr<Inventory> blockInv);
     void closeInventory();
 
 	void add(HudElement element);

src/frontend/screens.cpp

@@ -21,6 +21,7 @@
 #include "../objects/Player.h"
 #include "../logic/ChunksController.h"
 #include "../logic/LevelController.h"
+#include "../logic/scripting/scripting_frontend.h"
 #include "../voxels/Chunks.h"
 #include "../voxels/Chunk.h"
 #include "../engine.h"
@@ -87,7 +88,7 @@ LevelScreen::LevelScreen(Engine* engine, Level* level)
     : Screen(engine), 
       level(level),
       frontend(std::make_unique<LevelFrontend>(level, engine->getAssets())),
-      hud(std::make_unique<HudRenderer>(engine, frontend.get())),
+      hud(std::make_unique<Hud>(engine, frontend.get())),
       worldRenderer(std::make_unique<WorldRenderer>(engine, frontend.get())),
       controller(std::make_unique<LevelController>(engine->getSettings(), level)) {
 
@@ -96,6 +97,7 @@ LevelScreen::LevelScreen(Engine* engine, Level* level)
 
     animator.reset(new TextureAnimator());
     animator->addAnimations(engine->getAssets()->getAnimations());
+    scripting::on_frontend_init(hud.get());
 }
 
 LevelScreen::~LevelScreen() {

src/frontend/screens.h

@@ -7,7 +7,7 @@
 class Assets;
 class Level;
 class WorldRenderer;
-class HudRenderer;
+class Hud;
 class Engine;
 class Camera;
 class Batch2D;
@@ -40,7 +40,7 @@ public:
 class LevelScreen : public Screen {
     std::unique_ptr<Level> level;
     std::unique_ptr<LevelFrontend> frontend;
-    std::unique_ptr<HudRenderer> hud;
+    std::unique_ptr<Hud> hud;
     std::unique_ptr<WorldRenderer> worldRenderer;
     std::unique_ptr<LevelController> controller;
     std::unique_ptr<TextureAnimator> animator;

src/items/Inventories.cpp

@@ -33,6 +33,10 @@ void Inventories::store(std::shared_ptr<Inventory> inv) {
     map[inv->getId()] = inv;
 }
 
+void Inventories::remove(int64_t id) {
+    map.erase(id);
+}
+
 std::shared_ptr<Inventory> Inventories::get(int64_t id) {
     auto found = map.find(id);
     if (found == map.end())

src/items/Inventories.h

@@ -30,6 +30,9 @@ public:
     /* Store inventory */
     void store(std::shared_ptr<Inventory> inv);
 
+    /* Remove inventory from map */
+    void remove(int64_t id);
+
     /* Get inventory by id (works with both real and virtual)*/
     std::shared_ptr<Inventory> get(int64_t id);
 

src/logic/scripting/api/libhud.cpp

@@ -0,0 +1,20 @@
+#include "libhud.h"
+
+#include <iostream>
+
+#include "../scripting.h"
+#include "../../../frontend/hud.h"
+
+namespace scripting {
+    extern Hud* hud;
+}
+
+int l_hud_open_inventory(lua_State* L) {
+    scripting::hud->openInventory();
+    return 0;
+}
+
+int l_hud_close_inventory(lua_State* L) {
+    scripting::hud->closeInventory();
+    return 0;
+}

src/logic/scripting/api/libhud.h

@@ -0,0 +1,15 @@
+#ifndef LOGIC_SCRIPTING_API_LIBHUD_H_
+#define LOGIC_SCRIPTING_API_LIBHUD_H_
+
+#include <lua.hpp>
+
+extern int l_hud_open_inventory(lua_State* L);
+extern int l_hud_close_inventory(lua_State* L);
+
+static const luaL_Reg hudlib [] = {
+    {"open_inventory", l_hud_open_inventory},
+    {"close_inventory", l_hud_close_inventory},
+    {NULL, NULL}
+};
+
+#endif // LOGIC_SCRIPTING_API_LIBHUD_H_

src/logic/scripting/scripting.h

@@ -7,8 +7,6 @@
 
 namespace fs = std::filesystem;
 
-class LuaState;
-
 class Engine;
 class Content;
 struct ContentPack;

src/logic/scripting/scripting_frontend.cpp

@@ -0,0 +1,16 @@
+#include "scripting_frontend.h"
+#include "scripting.h"
+
+#include "api/libhud.h"
+#include "LuaState.h"
+
+namespace scripting {
+    extern lua::LuaState* state;
+}
+
+Hud* scripting::hud = nullptr;
+
+void scripting::on_frontend_init(Hud* hud) {
+    scripting::hud = hud;
+    scripting::state->openlib("hud", hudlib, 0);
+}

src/logic/scripting/scripting_frontend.h

@@ -0,0 +1,12 @@
+#ifndef LOGIC_SCRIPTING_SCRIPTING_FRONTEND_H_
+#define LOGIC_SCRIPTING_SCRIPTING_FRONTEND_H_
+
+class Hud;
+
+namespace scripting {
+    extern Hud* hud;
+
+    void on_frontend_init(Hud* hud);
+}
+
+#endif // LOGIC_SCRIPTING_SCRIPTING_FRONTEND_H_