minetest/src/clientobject.cpp

/*
Minetest-c55
Copyright (C) 2010-2011 celeron55, Perttu Ahola <celeron55@gmail.com>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 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 General Public License for more details.

You should have received a copy of the GNU 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 "clientobject.h"
#include "debug.h"
#include "porting.h"
#include "constants.h"
#include "utility.h"

ClientActiveObject::ClientActiveObject(u16 id):
	ActiveObject(id)
{
}

ClientActiveObject::~ClientActiveObject()
{
	removeFromScene();
}

ClientActiveObject* ClientActiveObject::create(u8 type)
{
	if(type == ACTIVEOBJECT_TYPE_INVALID)
	{
		dstream<<"ClientActiveObject::create(): passed "
				<<"ACTIVEOBJECT_TYPE_INVALID"<<std::endl;
		return NULL;
	}
	else if(type == ACTIVEOBJECT_TYPE_TEST)
	{
		dstream<<"ClientActiveObject::create(): passed "
				<<"ACTIVEOBJECT_TYPE_TEST"<<std::endl;
		return new TestCAO(0);
	}
	else if(type == ACTIVEOBJECT_TYPE_LUA)
	{
		dstream<<"ClientActiveObject::create(): passed "
				<<"ACTIVEOBJECT_TYPE_LUA"<<std::endl;
		return NULL;
	}
	else
	{
		dstream<<"ClientActiveObject::create(): passed "
				<<"unknown type="<<type<<std::endl;
		return NULL;
	}
}

/*
	TestCAO
*/

TestCAO::TestCAO(u16 id):
	ClientActiveObject(id),
	m_node(NULL),
	m_position(v3f(0,10*BS,0))
{
}

TestCAO::~TestCAO()
{
}

void TestCAO::addToScene(scene::ISceneManager *smgr)
{
	if(m_node != NULL)
		return;
	
	video::IVideoDriver* driver = smgr->getVideoDriver();
	
	scene::SMesh *mesh = new scene::SMesh();
	scene::IMeshBuffer *buf = new scene::SMeshBuffer();
	video::SColor c(255,255,255,255);
	video::S3DVertex vertices[4] =
	{
		video::S3DVertex(-BS/2,-BS/4,0, 0,0,0, c, 0,1),
		video::S3DVertex(BS/2,-BS/4,0, 0,0,0, c, 1,1),
		video::S3DVertex(BS/2,BS/4,0, 0,0,0, c, 1,0),
		video::S3DVertex(-BS/2,BS/4,0, 0,0,0, c, 0,0),
	};
	u16 indices[] = {0,1,2,2,3,0};
	buf->append(vertices, 4, indices, 6);
	// Set material
	buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
	buf->getMaterial().setFlag(video::EMF_BACK_FACE_CULLING, false);
	buf->getMaterial().setTexture
			(0, driver->getTexture(porting::getDataPath("rat.png").c_str()));
	buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
	buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
	buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
	// Add to mesh
	mesh->addMeshBuffer(buf);
	buf->drop();
	m_node = smgr->addMeshSceneNode(mesh, NULL);
	mesh->drop();
	updateNodePos();
}

void TestCAO::removeFromScene()
{
	if(m_node == NULL)
		return;

	m_node->remove();
	m_node = NULL;
}

void TestCAO::updateLight(u8 light_at_pos)
{
}

v3s16 TestCAO::getLightPosition()
{
	return floatToInt(m_position, BS);
}

void TestCAO::updateNodePos()
{
	if(m_node == NULL)
		return;

	m_node->setPosition(m_position);
	//m_node->setRotation(v3f(0, 45, 0));
}

void TestCAO::step(float dtime)
{
	if(m_node)
	{
		v3f rot = m_node->getRotation();
		//dstream<<"dtime="<<dtime<<", rot.Y="<<rot.Y<<std::endl;
		rot.Y += dtime * 180;
		m_node->setRotation(rot);
	}
}

void TestCAO::processMessage(const std::string &data)
{
	//dstream<<"TestCAO: Got data: "<<data<<std::endl;
	std::istringstream is(data, std::ios::binary);
	u16 cmd;
	is>>cmd;
	if(cmd == 0)
	{
		v3f newpos;
		is>>newpos.X;
		is>>newpos.Y;
		is>>newpos.Z;
		m_position = newpos;
		updateNodePos();
	}
}