Add IDropAction and related stuff

7 files changed, 229 insertions, 17 deletions

diff --git a/src/defaultsettings.cpp b/src/defaultsettings.cpp
index 20a6dc0a8..a1e3ff998 100644
--- a/src/defaultsettings.cpp
+++ b/src/defaultsettings.cpp
@@ -35,6 +35,7 @@ void set_default_settings(Settings *settings)
 	settings->setDefault("keymap_right", "KEY_KEY_D");
 	settings->setDefault("keymap_jump", "KEY_SPACE");
 	settings->setDefault("keymap_sneak", "KEY_LSHIFT");
+	settings->setDefault("keymap_drop", "KEY_KEY_Q");
 	settings->setDefault("keymap_inventory", "KEY_KEY_I");
 	settings->setDefault("keymap_special1", "KEY_KEY_E");
 	settings->setDefault("keymap_chat", "KEY_KEY_T");
diff --git a/src/game.cpp b/src/game.cpp
index a7e1ccd82..1c555dbee 100644
--- a/src/game.cpp
+++ b/src/game.cpp
@@ -1215,9 +1215,19 @@ void the_game(
 		input->step(dtime);
 
 		/*
-			Launch menus according to keys
+			Launch menus and trigger stuff according to keys
 		*/
-		if(input->wasKeyDown(getKeySetting("keymap_inventory")))
+		if(input->wasKeyDown(getKeySetting("keymap_drop")))
+		{
+			// drop selected item
+			IDropAction *a = new IDropAction();
+			a->count = 0;
+			a->from_inv = "current_player";
+			a->from_list = "main";
+			a->from_i = g_selected_item;
+			client.inventoryAction(a);
+		}
+		else if(input->wasKeyDown(getKeySetting("keymap_inventory")))
 		{
 			infostream<<"the_game: "
 					<<"Launching inventory"<<std::endl;
diff --git a/src/guiKeyChangeMenu.cpp b/src/guiKeyChangeMenu.cpp
index 4a92e61e9..01f583a01 100644
--- a/src/guiKeyChangeMenu.cpp
+++ b/src/guiKeyChangeMenu.cpp
@@ -206,6 +206,21 @@ void GUIKeyChangeMenu::regenerateGui(v2u32 screensize)
 	{
 		core::rect < s32 > rect(0, 0, 100, 20);
 		rect += topleft + v2s32(offset.X, offset.Y);
+		Environment->addStaticText(wgettext("Drop"), rect, false, true, this, -1);
+		//t->setTextAlignment(gui::EGUIA_CENTER, gui::EGUIA_UPPERLEFT);
+	}
+
+	{
+		core::rect < s32 > rect(0, 0, 100, 30);
+		rect += topleft + v2s32(offset.X + 105, offset.Y - 5);
+		this->dropbtn = Environment->addButton(rect, this, GUI_ID_KEY_DROP_BUTTON,
+				wgettext(key_drop.name()));
+	}
+
+	offset += v2s32(0, 25);
+	{
+		core::rect < s32 > rect(0, 0, 100, 20);
+		rect += topleft + v2s32(offset.X, offset.Y);
 		Environment->addStaticText(wgettext("Inventory"),
 				rect, false, true, this, -1);
 		//t->setTextAlignment(gui::EGUIA_CENTER, gui::EGUIA_UPPERLEFT);
@@ -352,6 +367,7 @@ bool GUIKeyChangeMenu::acceptInput()
 	g_settings->set("keymap_right", key_right.sym());
 	g_settings->set("keymap_jump", key_jump.sym());
 	g_settings->set("keymap_sneak", key_sneak.sym());
+	g_settings->set("keymap_drop", key_drop.sym());
 	g_settings->set("keymap_inventory", key_inventory.sym());
 	g_settings->set("keymap_chat", key_chat.sym());
 	g_settings->set("keymap_cmd", key_cmd.sym());
@@ -371,6 +387,7 @@ void GUIKeyChangeMenu::init_keys()
 	key_right = getKeySetting("keymap_right");
 	key_jump = getKeySetting("keymap_jump");
 	key_sneak = getKeySetting("keymap_sneak");
+	key_drop = getKeySetting("keymap_drop");
 	key_inventory = getKeySetting("keymap_inventory");
 	key_chat = getKeySetting("keymap_chat");
 	key_cmd = getKeySetting("keymap_cmd");
@@ -407,6 +424,9 @@ bool GUIKeyChangeMenu::resetMenu()
 		case GUI_ID_KEY_SNEAK_BUTTON:
 			this->sneak->setText(wgettext(key_sneak.name()));
 			break;
+		case GUI_ID_KEY_DROP_BUTTON:
+			this->dropbtn->setText(wgettext(key_drop.name()));
+			break;
 		case GUI_ID_KEY_INVENTORY_BUTTON:
 			this->inventory->setText(
 					wgettext(key_inventory.name()));
@@ -476,6 +496,11 @@ bool GUIKeyChangeMenu::OnEvent(const SEvent& event)
 			this->sneak->setText(wgettext(kp.name()));
 			this->key_sneak = kp;
 		}
+		else if (activeKey == GUI_ID_KEY_DROP_BUTTON)
+		{
+			this->dropbtn->setText(wgettext(kp.name()));
+			this->key_drop = kp;
+		}
 		else if (activeKey == GUI_ID_KEY_INVENTORY_BUTTON)
 		{
 			this->inventory->setText(wgettext(kp.name()));
@@ -590,6 +615,11 @@ bool GUIKeyChangeMenu::OnEvent(const SEvent& event)
 				activeKey = event.GUIEvent.Caller->getID();
 				this->jump->setText(wgettext("press Key"));
 				break;
+			case GUI_ID_KEY_DROP_BUTTON:
+				resetMenu();
+				activeKey = event.GUIEvent.Caller->getID();
+				this->dropbtn->setText(wgettext("press Key"));
+				break;
 			case GUI_ID_KEY_CHAT_BUTTON:
 				resetMenu();
 				activeKey = event.GUIEvent.Caller->getID();
diff --git a/src/guiKeyChangeMenu.h b/src/guiKeyChangeMenu.h
index 2e8773a77..a3d8b4743 100644
--- a/src/guiKeyChangeMenu.h
+++ b/src/guiKeyChangeMenu.h
@@ -45,6 +45,7 @@ enum
 	GUI_ID_KEY_CHAT_BUTTON,
 	GUI_ID_KEY_CMD_BUTTON,
 	GUI_ID_KEY_SNEAK_BUTTON,
+	GUI_ID_KEY_DROP_BUTTON,
 	GUI_ID_KEY_INVENTORY_BUTTON,
 	GUI_ID_KEY_DUMP_BUTTON,
 	GUI_ID_KEY_RANGE_BUTTON
@@ -82,6 +83,7 @@ private:
 	gui::IGUIButton *use;
 	gui::IGUIButton *sneak;
 	gui::IGUIButton *jump;
+	gui::IGUIButton *dropbtn;
 	gui::IGUIButton *inventory;
 	gui::IGUIButton *fly;
 	gui::IGUIButton *fast;
@@ -98,6 +100,7 @@ private:
 	KeyPress key_use;
 	KeyPress key_sneak;
 	KeyPress key_jump;
+	KeyPress key_drop;
 	KeyPress key_inventory;
 	KeyPress key_fly;
 	KeyPress key_fast;
diff --git a/src/inventory.cpp b/src/inventory.cpp
index c7dd2a87b..f3b81090b 100644
--- a/src/inventory.cpp
+++ b/src/inventory.cpp
@@ -27,6 +27,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "content_mapnode.h"
 #include "content_inventory.h"
 #include "content_sao.h"
+#include "environment.h"
+#include "mapblock.h"
 #include "player.h"
 #include "log.h"
 #include "nodedef.h"
@@ -173,7 +175,7 @@ std::string InventoryItem::getItemString() {
 	return os.str();
 }
 
-ServerActiveObject* InventoryItem::createSAO(ServerEnvironment *env, u16 id, v3f pos)
+ServerActiveObject* InventoryItem::createSAO(ServerEnvironment *env, v3f pos)
 {
 	/*
 		Create an ItemSAO
@@ -307,14 +309,14 @@ video::ITexture * CraftItem::getImage() const
 }
 #endif
 
-ServerActiveObject* CraftItem::createSAO(ServerEnvironment *env, u16 id, v3f pos)
+ServerActiveObject* CraftItem::createSAO(ServerEnvironment *env, v3f pos)
 {
 	// Special cases
 	ServerActiveObject *obj = item_craft_create_object(m_subname, env, pos);
 	if(obj)
 		return obj;
 	// Default
-	return InventoryItem::createSAO(env, id, pos);
+	return InventoryItem::createSAO(env, pos);
 }
 
 u16 CraftItem::getDropCount() const
@@ -884,6 +886,10 @@ InventoryAction * InventoryAction::deSerialize(std::istream &is)
 	{
 		a = new IMoveAction(is);
 	}
+	else if(type == "Drop")
+	{
+		a = new IDropAction(is);
+	}
 
 	return a;
 }
@@ -918,7 +924,8 @@ IMoveAction::IMoveAction(std::istream &is)
 	to_i = stoi(ts);
 }
 
-void IMoveAction::apply(InventoryContext *c, InventoryManager *mgr)
+void IMoveAction::apply(InventoryContext *c, InventoryManager *mgr,
+		ServerEnvironment *env)
 {
 	Inventory *inv_from = mgr->getInventory(c, from_inv);
 	Inventory *inv_to = mgr->getInventory(c, to_inv);
@@ -1022,6 +1029,100 @@ void IMoveAction::apply(InventoryContext *c, InventoryManager *mgr)
 			<<std::endl;
 }
 
+IDropAction::IDropAction(std::istream &is)
+{
+	std::string ts;
+
+	std::getline(is, ts, ' ');
+	count = stoi(ts);
+
+	std::getline(is, from_inv, ' ');
+
+	std::getline(is, from_list, ' ');
+
+	std::getline(is, ts, ' ');
+	from_i = stoi(ts);
+}
+
+void IDropAction::apply(InventoryContext *c, InventoryManager *mgr,
+		ServerEnvironment *env)
+{
+	Inventory *inv_from = mgr->getInventory(c, from_inv);
+	
+	if(!inv_from){
+		infostream<<"IDropAction::apply(): FAIL: source inventory not found: "
+				<<"context=["<<describeC(c)<<"], from_inv=\""<<from_inv<<"\""<<std::endl;
+		return;
+	}
+
+	InventoryList *list_from = inv_from->getList(from_list);
+
+	/*
+		If a list doesn't exist or the source item doesn't exist
+	*/
+	if(!list_from){
+		infostream<<"IDropAction::apply(): FAIL: source list not found: "
+				<<"context=["<<describeC(c)<<"], from_inv=\""<<from_inv<<"\""
+				<<", from_list=\""<<from_list<<"\""<<std::endl;
+		return;
+	}
+	if(list_from->getItem(from_i) == NULL)
+	{
+		infostream<<"IDropAction::apply(): FAIL: source item not found: "
+				<<"context=["<<describeC(c)<<"], from_inv=\""<<from_inv<<"\""
+				<<", from_list=\""<<from_list<<"\""
+				<<" from_i="<<from_i<<std::endl;
+		return;
+	}
+
+	v3f pos = c->current_player->getPosition();
+	pos.Y += 0.5*BS;
+	v3s16 blockpos = getNodeBlockPos(floatToInt(pos, BS));
+
+	/*
+		Ensure that the block is loaded so that the item
+		can properly be added to the static list too
+	*/
+	MapBlock *block = env->getMap().emergeBlock(blockpos, false);
+	if(block==NULL)
+	{
+		infostream<<"IDropAction::apply(): FAIL: block not found: "
+				<<blockpos.X<<","<<blockpos.Y<<","<<blockpos.Z
+				<<std::endl;
+		return;
+	}
+
+	// Take item from source list
+	if(count == 0)
+		count = list_from->getItem(from_i)->getDropCount();
+	InventoryItem *item1 = list_from->takeItem(from_i, count);
+
+	// Create an active object
+	ServerActiveObject *obj = item1->createSAO(env, pos);
+	if(obj == NULL)
+	{
+		infostream<<"IDropAction::apply(): item resulted in NULL object, "
+			<<"not placing onto map"
+			<<std::endl;
+	}
+	else
+	{
+		// Add the object to the environment
+		env->addActiveObject(obj);
+
+		infostream<<"Dropped object"<<std::endl;
+	}
+
+	mgr->inventoryModified(c, from_inv);
+
+	infostream<<"IDropAction::apply(): dropped "
+			<<"["<<describeC(c)<<"]"
+			<<" from inv=\""<<from_inv<<"\""
+			<<" list=\""<<from_list<<"\""
+			<<" i="<<from_i
+			<<std::endl;
+}
+
 /*
 	Craft checking system
 */
diff --git a/src/inventory.h b/src/inventory.h
index d6049f52f..441b2ca4d 100644
--- a/src/inventory.h
+++ b/src/inventory.h
@@ -62,7 +62,7 @@ public:
 	// Returns the string used for inventory
 	virtual std::string getItemString();
 	// Creates an object from the item, to be placed in the world.
-	virtual ServerActiveObject* createSAO(ServerEnvironment *env, u16 id, v3f pos);
+	virtual ServerActiveObject* createSAO(ServerEnvironment *env, v3f pos);
 	// Gets amount of items that dropping one SAO will decrement
 	virtual u16 getDropCount() const { return getCount(); }
 
@@ -252,7 +252,7 @@ public:
 		return os.str();
 	}
 
-	ServerActiveObject* createSAO(ServerEnvironment *env, u16 id, v3f pos);
+	ServerActiveObject* createSAO(ServerEnvironment *env, v3f pos);
 	u16 getDropCount() const;
 
 	virtual bool addableTo(const InventoryItem *other) const
@@ -535,6 +535,7 @@ public:
 };
 
 #define IACTION_MOVE 0
+#define IACTION_DROP 1
 
 struct InventoryAction
 {
@@ -542,7 +543,8 @@ struct InventoryAction
 	
 	virtual u16 getType() const = 0;
 	virtual void serialize(std::ostream &os) const = 0;
-	virtual void apply(InventoryContext *c, InventoryManager *mgr) = 0;
+	virtual void apply(InventoryContext *c, InventoryManager *mgr,
+			ServerEnvironment *env) = 0;
 };
 
 struct IMoveAction : public InventoryAction
@@ -582,7 +584,42 @@ struct IMoveAction : public InventoryAction
 		os<<to_i;
 	}
 
-	void apply(InventoryContext *c, InventoryManager *mgr);
+	void apply(InventoryContext *c, InventoryManager *mgr,
+			ServerEnvironment *env);
+};
+
+struct IDropAction : public InventoryAction
+{
+	// count=0 means "everything"
+	u16 count;
+	std::string from_inv;
+	std::string from_list;
+	s16 from_i;
+	
+	IDropAction()
+	{
+		count = 0;
+		from_i = -1;
+	}
+	
+	IDropAction(std::istream &is);
+
+	u16 getType() const
+	{
+		return IACTION_DROP;
+	}
+
+	void serialize(std::ostream &os) const
+	{
+		os<<"Drop ";
+		os<<count<<" ";
+		os<<from_inv<<" ";
+		os<<from_list<<" ";
+		os<<from_i;
+	}
+
+	void apply(InventoryContext *c, InventoryManager *mgr,
+			ServerEnvironment *env);
 };
 
 /*
diff --git a/src/server.cpp b/src/server.cpp
index 7581f7a2b..66cc099e3 100644
--- a/src/server.cpp
+++ b/src/server.cpp
@@ -3032,7 +3032,7 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
 				/*
 					Create the object
 				*/
-				ServerActiveObject *obj = item->createSAO(m_env, 0, pos);
+				ServerActiveObject *obj = item->createSAO(m_env, pos);
 
 				if(obj == NULL)
 				{
@@ -3243,7 +3243,7 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
 				// Disallow moving items if not allowed to build
 				else if((getPlayerPrivs(player) & PRIV_BUILD) == 0)
 				{
-					return;
+					disable_action = true;
 				}
 				// if it's a locking chest, only allow the owner or server admins to move items
 				else if (ma->from_inv != "current_player" && (getPlayerPrivs(player) & PRIV_SERVER) == 0)
@@ -3260,7 +3260,7 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
 						if(meta && meta->typeId() == LEGN(m_nodedef, "CONTENT_LOCKABLE_CHEST")) {
 							LockingChestNodeMetadata *lcm = (LockingChestNodeMetadata*)meta;
 							if (lcm->getOwner() != player->getName())
-								return;
+								disable_action = true;
 						}
 					}
 				}
@@ -3278,7 +3278,36 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
 						if(meta && meta->typeId() == LEGN(m_nodedef, "CONTENT_LOCKABLE_CHEST")) {
 							LockingChestNodeMetadata *lcm = (LockingChestNodeMetadata*)meta;
 							if (lcm->getOwner() != player->getName())
-								return;
+								disable_action = true;
+						}
+					}
+				}
+			}
+
+			if(a->getType() == IACTION_DROP)
+			{
+				IDropAction *da = (IDropAction*)a;
+				// Disallow dropping items if not allowed to build
+				if((getPlayerPrivs(player) & PRIV_BUILD) == 0)
+				{
+					disable_action = true;
+				}
+				// if it's a locking chest, only allow the owner or server admins to drop items
+				else if (da->from_inv != "current_player" && (getPlayerPrivs(player) & PRIV_SERVER) == 0)
+				{
+					Strfnd fn(da->from_inv);
+					std::string id0 = fn.next(":");
+					if(id0 == "nodemeta")
+					{
+						v3s16 p;
+						p.X = stoi(fn.next(","));
+						p.Y = stoi(fn.next(","));
+						p.Z = stoi(fn.next(","));
+						NodeMetadata *meta = m_env->getMap().getNodeMetadata(p);
+						if(meta && meta->typeId() == LEGN(m_nodedef, "CONTENT_LOCKABLE_CHEST")) {
+							LockingChestNodeMetadata *lcm = (LockingChestNodeMetadata*)meta;
+							if (lcm->getOwner() != player->getName())
+								disable_action = true;
 						}
 					}
 				}
@@ -3287,9 +3316,7 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
 			if(disable_action == false)
 			{
 				// Feed action to player inventory
-				a->apply(&c, this);
-				// Eat the action
-				delete a;
+				a->apply(&c, this, m_env);
 			}
 			else
 			{
@@ -3297,6 +3324,9 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
 				UpdateCrafting(player->peer_id);
 				SendInventory(player->peer_id);
 			}
+
+			// Eat the action
+			delete a;
 		}
 		else
 		{