minetest/src/script/cpp_api/s_client.cpp

/*
Minetest
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
Copyright (C) 2017 nerzhul, Loic Blot <loic.blot@unix-experience.fr>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/

#include "s_client.h"
#include "s_internal.h"
#include "client.h"
#include "common/c_converter.h"
#include "common/c_content.h"
#include "s_item.h"

void ScriptApiClient::on_shutdown()
{
	SCRIPTAPI_PRECHECKHEADER

	// Get registered shutdown hooks
	lua_getglobal(L, "core");
	lua_getfield(L, -1, "registered_on_shutdown");
	// Call callbacks
	runCallbacks(0, RUN_CALLBACKS_MODE_FIRST);
}

bool ScriptApiClient::on_sending_message(const std::string &message)
{
	SCRIPTAPI_PRECHECKHEADER

	// Get core.registered_on_chat_messages
	lua_getglobal(L, "core");
	lua_getfield(L, -1, "registered_on_sending_chat_message");
	// Call callbacks
	lua_pushstring(L, message.c_str());
	runCallbacks(1, RUN_CALLBACKS_MODE_OR_SC);
	bool ate = lua_toboolean(L, -1);
	return ate;
}

bool ScriptApiClient::on_receiving_message(const std::string &message)
{
	SCRIPTAPI_PRECHECKHEADER

	// Get core.registered_on_chat_messages
	lua_getglobal(L, "core");
	lua_getfield(L, -1, "registered_on_receiving_chat_message");
	// Call callbacks
	lua_pushstring(L, message.c_str());
	runCallbacks(1, RUN_CALLBACKS_MODE_OR_SC);
	bool ate = lua_toboolean(L, -1);
	return ate;
}

void ScriptApiClient::on_damage_taken(int32_t damage_amount)
{
	SCRIPTAPI_PRECHECKHEADER

	// Get core.registered_on_chat_messages
	lua_getglobal(L, "core");
	lua_getfield(L, -1, "registered_on_damage_taken");
	// Call callbacks
	lua_pushinteger(L, damage_amount);
	runCallbacks(1, RUN_CALLBACKS_MODE_OR_SC);
}

void ScriptApiClient::on_hp_modification(int32_t newhp)
{
	SCRIPTAPI_PRECHECKHEADER

	// Get core.registered_on_chat_messages
	lua_getglobal(L, "core");
	lua_getfield(L, -1, "registered_on_hp_modification");
	// Call callbacks
	lua_pushinteger(L, newhp);
	runCallbacks(1, RUN_CALLBACKS_MODE_OR_SC);
}

void ScriptApiClient::on_death()
{
	SCRIPTAPI_PRECHECKHEADER

	// Get registered shutdown hooks
	lua_getglobal(L, "core");
	lua_getfield(L, -1, "registered_on_death");
	// Call callbacks
	runCallbacks(0, RUN_CALLBACKS_MODE_FIRST);
}

void ScriptApiClient::environment_step(float dtime)
{
	SCRIPTAPI_PRECHECKHEADER

	// Get core.registered_globalsteps
	lua_getglobal(L, "core");
	lua_getfield(L, -1, "registered_globalsteps");
	// Call callbacks
	lua_pushnumber(L, dtime);
	try {
		runCallbacks(1, RUN_CALLBACKS_MODE_FIRST);
	} catch (LuaError &e) {
		getClient()->setFatalError(std::string("Client environment_step: ") + e.what() + "\n"
				+ script_get_backtrace(L));
	}
}

void ScriptApiClient::on_formspec_input(const std::string &formname,
	const StringMap &fields)
{
	SCRIPTAPI_PRECHECKHEADER

	// Get core.registered_on_chat_messages
	lua_getglobal(L, "core");
	lua_getfield(L, -1, "registered_on_formspec_input");
	// Call callbacks
	// param 1
	lua_pushstring(L, formname.c_str());
	// param 2
	lua_newtable(L);
	StringMap::const_iterator it;
	for (it = fields.begin(); it != fields.end(); ++it) {
		const std::string &name = it->first;
		const std::string &value = it->second;
		lua_pushstring(L, name.c_str());
		lua_pushlstring(L, value.c_str(), value.size());
		lua_settable(L, -3);
	}
	runCallbacks(2, RUN_CALLBACKS_MODE_OR_SC);
}

bool ScriptApiClient::on_dignode(v3s16 p, MapNode node)
{
	SCRIPTAPI_PRECHECKHEADER

	const NodeDefManager *ndef = getClient()->ndef();

	// Get core.registered_on_dignode
	lua_getglobal(L, "core");
	lua_getfield(L, -1, "registered_on_dignode");

	// Push data
	push_v3s16(L, p);
	pushnode(L, node, ndef);

	// Call functions
	runCallbacks(2, RUN_CALLBACKS_MODE_OR);
	return lua_toboolean(L, -1);
}

bool ScriptApiClient::on_punchnode(v3s16 p, MapNode node)
{
	SCRIPTAPI_PRECHECKHEADER

	const NodeDefManager *ndef = getClient()->ndef();

	// Get core.registered_on_punchgnode
	lua_getglobal(L, "core");
	lua_getfield(L, -1, "registered_on_punchnode");

	// Push data
	push_v3s16(L, p);
	pushnode(L, node, ndef);

	// Call functions
	runCallbacks(2, RUN_CALLBACKS_MODE_OR);
	bool blocked = lua_toboolean(L, -1);
	return blocked;
}

bool ScriptApiClient::on_placenode(const PointedThing &pointed, const ItemDefinition &item)
{
	SCRIPTAPI_PRECHECKHEADER

	// Get core.registered_on_placenode
	lua_getglobal(L, "core");
	lua_getfield(L, -1, "registered_on_placenode");

	// Push data
	push_pointed_thing(L, pointed, true);
	push_item_definition(L, item);

	// Call functions
	runCallbacks(2, RUN_CALLBACKS_MODE_OR);
	return lua_toboolean(L, -1);
}

bool ScriptApiClient::on_item_use(const ItemStack &item, const PointedThing &pointed)
{
	SCRIPTAPI_PRECHECKHEADER

	// Get core.registered_on_item_use
	lua_getglobal(L, "core");
	lua_getfield(L, -1, "registered_on_item_use");

	// Push data
	LuaItemStack::create(L, item);
	push_pointed_thing(L, pointed, true);

	// Call functions
	runCallbacks(2, RUN_CALLBACKS_MODE_OR);
	return lua_toboolean(L, -1);
}

bool ScriptApiClient::on_inventory_open(Inventory *inventory)
{
	SCRIPTAPI_PRECHECKHEADER

	lua_getglobal(L, "core");
	lua_getfield(L, -1, "registered_on_inventory_open");

	std::vector<const InventoryList*> lists = inventory->getLists();
	std::vector<const InventoryList*>::iterator iter = lists.begin();
	lua_createtable(L, 0, lists.size());
	for (; iter != lists.end(); iter++) {
		const char* name = (*iter)->getName().c_str();
		lua_pushstring(L, name);
		push_inventory_list(L, inventory, name);
		lua_rawset(L, -3);
	}

	runCallbacks(1, RUN_CALLBACKS_MODE_OR);
	return lua_toboolean(L, -1);
}

void ScriptApiClient::setEnv(ClientEnvironment *env)
{
	ScriptApiBase::setEnv(env);
}