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Initial files
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Perttu Ahola
commit
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358
src/player.cpp
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358
src/player.cpp
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/*
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(c) 2010 Perttu Ahola <celeron55@gmail.com>
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*/
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#include "player.h"
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#include "map.h"
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#include "connection.h"
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#include "constants.h"
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Player::Player():
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touching_ground(false),
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inventory(PLAYER_INVENTORY_SIZE),
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peer_id(PEER_ID_NEW),
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m_speed(0,0,0),
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m_position(0,0,0)
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{
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updateName("<not set>");
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}
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Player::~Player()
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{
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}
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void Player::move(f32 dtime, Map &map)
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{
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v3f position = getPosition();
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v3f oldpos = position;
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v3s16 oldpos_i = floatToInt(oldpos);
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/*std::cout<<"oldpos_i=("<<oldpos_i.X<<","<<oldpos_i.Y<<","
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<<oldpos_i.Z<<")"<<std::endl;*/
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position += m_speed * dtime;
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// Skip collision detection if player is non-local
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if(isLocal() == false)
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{
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setPosition(position);
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return;
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}
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/*
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Collision detection
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*/
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v3s16 pos_i = floatToInt(position);
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// The frame length is limited to the player going 0.1*BS per call
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f32 d = (float)BS * 0.15;
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#define PLAYER_RADIUS (BS*0.3)
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#define PLAYER_HEIGHT (BS*1.7)
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core::aabbox3d<f32> playerbox(
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position.X - PLAYER_RADIUS,
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position.Y - 0.0,
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position.Z - PLAYER_RADIUS,
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position.X + PLAYER_RADIUS,
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position.Y + PLAYER_HEIGHT,
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position.Z + PLAYER_RADIUS
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);
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core::aabbox3d<f32> playerbox_old(
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oldpos.X - PLAYER_RADIUS,
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oldpos.Y - 0.0,
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oldpos.Z - PLAYER_RADIUS,
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oldpos.X + PLAYER_RADIUS,
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oldpos.Y + PLAYER_HEIGHT,
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oldpos.Z + PLAYER_RADIUS
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);
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//hilightboxes.push_back(playerbox);
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touching_ground = false;
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/*std::cout<<"Checking collisions for ("
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<<oldpos_i.X<<","<<oldpos_i.Y<<","<<oldpos_i.Z
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<<") -> ("
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<<pos_i.X<<","<<pos_i.Y<<","<<pos_i.Z
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<<"):"<<std::endl;*/
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for(s16 y = oldpos_i.Y - 1; y <= oldpos_i.Y + 2; y++){
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for(s16 z = oldpos_i.Z - 1; z <= oldpos_i.Z + 1; z++){
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for(s16 x = oldpos_i.X - 1; x <= oldpos_i.X + 1; x++){
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//std::cout<<"with ("<<x<<","<<y<<","<<z<<"): ";
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try{
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if(map.getNode(v3s16(x,y,z)).d == MATERIAL_AIR){
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//std::cout<<"air."<<std::endl;
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continue;
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}
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}
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catch(InvalidPositionException &e)
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{
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// Doing nothing here will block the player from
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// walking over map borders
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}
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core::aabbox3d<f32> nodebox = Map::getNodeBox(
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v3s16(x,y,z));
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// See if the player is touching ground
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if(
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fabs(nodebox.MaxEdge.Y-playerbox.MinEdge.Y) < d
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&& nodebox.MaxEdge.X-d > playerbox.MinEdge.X
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&& nodebox.MinEdge.X+d < playerbox.MaxEdge.X
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&& nodebox.MaxEdge.Z-d > playerbox.MinEdge.Z
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&& nodebox.MinEdge.Z+d < playerbox.MaxEdge.Z
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){
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touching_ground = true;
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}
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if(playerbox.intersectsWithBox(nodebox))
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{
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v3f dirs[3] = {
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v3f(0,0,1), // back
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v3f(0,1,0), // top
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v3f(1,0,0), // right
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};
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for(u16 i=0; i<3; i++)
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{
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f32 nodemax = nodebox.MaxEdge.dotProduct(dirs[i]);
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f32 nodemin = nodebox.MinEdge.dotProduct(dirs[i]);
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f32 playermax = playerbox.MaxEdge.dotProduct(dirs[i]);
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f32 playermin = playerbox.MinEdge.dotProduct(dirs[i]);
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f32 playermax_old = playerbox_old.MaxEdge.dotProduct(dirs[i]);
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f32 playermin_old = playerbox_old.MinEdge.dotProduct(dirs[i]);
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bool main_edge_collides =
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((nodemax > playermin && nodemax <= playermin_old + d
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&& m_speed.dotProduct(dirs[i]) < 0)
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||
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(nodemin < playermax && nodemin >= playermax_old - d
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&& m_speed.dotProduct(dirs[i]) > 0));
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bool other_edges_collide = true;
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for(u16 j=0; j<3; j++)
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{
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if(j == i)
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continue;
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f32 nodemax = nodebox.MaxEdge.dotProduct(dirs[j]);
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f32 nodemin = nodebox.MinEdge.dotProduct(dirs[j]);
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f32 playermax = playerbox.MaxEdge.dotProduct(dirs[j]);
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f32 playermin = playerbox.MinEdge.dotProduct(dirs[j]);
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if(!(nodemax - d > playermin && nodemin + d < playermax))
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{
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other_edges_collide = false;
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break;
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}
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}
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if(main_edge_collides && other_edges_collide)
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{
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m_speed -= m_speed.dotProduct(dirs[i]) * dirs[i];
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position -= position.dotProduct(dirs[i]) * dirs[i];
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position += oldpos.dotProduct(dirs[i]) * dirs[i];
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}
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}
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} // if(playerbox.intersectsWithBox(nodebox))
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} // for x
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} // for z
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} // for y
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setPosition(position);
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}
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// Y direction is ignored
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void Player::accelerate(v3f target_speed, f32 max_increase)
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{
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if(m_speed.X < target_speed.X - max_increase)
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m_speed.X += max_increase;
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else if(m_speed.X > target_speed.X + max_increase)
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m_speed.X -= max_increase;
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else if(m_speed.X < target_speed.X)
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m_speed.X = target_speed.X;
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else if(m_speed.X > target_speed.X)
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m_speed.X = target_speed.X;
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if(m_speed.Z < target_speed.Z - max_increase)
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m_speed.Z += max_increase;
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else if(m_speed.Z > target_speed.Z + max_increase)
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m_speed.Z -= max_increase;
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else if(m_speed.Z < target_speed.Z)
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m_speed.Z = target_speed.Z;
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else if(m_speed.Z > target_speed.Z)
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m_speed.Z = target_speed.Z;
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}
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/*
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RemotePlayer
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*/
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RemotePlayer::RemotePlayer(
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scene::ISceneNode* parent,
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IrrlichtDevice *device,
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s32 id):
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scene::ISceneNode(parent, (device==NULL)?NULL:device->getSceneManager(), id),
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m_text(NULL)
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{
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m_box = core::aabbox3d<f32>(-BS/2,0,-BS/2,BS/2,BS*2,BS/2);
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if(parent != NULL && device != NULL)
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{
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// ISceneNode stores a member called SceneManager
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scene::ISceneManager* mgr = SceneManager;
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video::IVideoDriver* driver = mgr->getVideoDriver();
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gui::IGUIEnvironment* gui = device->getGUIEnvironment();
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// Add a text node for showing the name
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wchar_t wname[1] = {0};
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m_text = mgr->addTextSceneNode(gui->getBuiltInFont(),
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wname, video::SColor(255,255,255,255), this);
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m_text->setPosition(v3f(0, (f32)BS*2.1, 0));
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// Attach a simple mesh to the player for showing an image
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scene::SMesh *mesh = new scene::SMesh();
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{ // Front
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scene::IMeshBuffer *buf = new scene::SMeshBuffer();
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video::SColor c(255,255,255,255);
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video::S3DVertex vertices[4] =
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{
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video::S3DVertex(-BS/2,0,0, 0,0,0, c, 0,1),
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video::S3DVertex(BS/2,0,0, 0,0,0, c, 1,1),
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video::S3DVertex(BS/2,BS*2,0, 0,0,0, c, 1,0),
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video::S3DVertex(-BS/2,BS*2,0, 0,0,0, c, 0,0),
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};
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u16 indices[] = {0,1,2,2,3,0};
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buf->append(vertices, 4, indices, 6);
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// Set material
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buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
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//buf->getMaterial().setFlag(video::EMF_BACK_FACE_CULLING, false);
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buf->getMaterial().setTexture(0, driver->getTexture("../data/player.png"));
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buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
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//buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
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buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
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// Add to mesh
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mesh->addMeshBuffer(buf);
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buf->drop();
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}
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{ // Back
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scene::IMeshBuffer *buf = new scene::SMeshBuffer();
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video::SColor c(255,255,255,255);
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video::S3DVertex vertices[4] =
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{
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video::S3DVertex(BS/2,0,0, 0,0,0, c, 1,1),
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video::S3DVertex(-BS/2,0,0, 0,0,0, c, 0,1),
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video::S3DVertex(-BS/2,BS*2,0, 0,0,0, c, 0,0),
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video::S3DVertex(BS/2,BS*2,0, 0,0,0, c, 1,0),
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};
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u16 indices[] = {0,1,2,2,3,0};
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buf->append(vertices, 4, indices, 6);
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// Set material
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buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
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//buf->getMaterial().setFlag(video::EMF_BACK_FACE_CULLING, false);
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buf->getMaterial().setTexture(0, driver->getTexture("../data/player_back.png"));
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buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
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buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
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// Add to mesh
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mesh->addMeshBuffer(buf);
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buf->drop();
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}
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scene::IMeshSceneNode *node = mgr->addMeshSceneNode(mesh, this);
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mesh->drop();
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node->setPosition(v3f(0,0,0));
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}
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}
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RemotePlayer::~RemotePlayer()
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{
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if(SceneManager != NULL)
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ISceneNode::remove();
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}
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void RemotePlayer::updateName(const char *name)
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{
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Player::updateName(name);
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if(m_text != NULL)
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{
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wchar_t wname[PLAYERNAME_SIZE];
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mbstowcs(wname, m_name, strlen(m_name)+1);
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m_text->setText(wname);
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}
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}
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/*
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LocalPlayer
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*/
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LocalPlayer::LocalPlayer()
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{
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}
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LocalPlayer::~LocalPlayer()
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{
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}
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void LocalPlayer::applyControl(float dtime)
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{
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// Random constants
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#define WALK_ACCELERATION (4.0 * BS)
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#define WALKSPEED_MAX (4.0 * BS)
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f32 walk_acceleration = WALK_ACCELERATION;
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f32 walkspeed_max = WALKSPEED_MAX;
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setPitch(control.pitch);
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setYaw(control.yaw);
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v3f move_direction = v3f(0,0,1);
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move_direction.rotateXZBy(getYaw());
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v3f speed = v3f(0,0,0);
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// Superspeed mode
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bool superspeed = false;
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if(control.superspeed)
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{
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speed += move_direction;
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superspeed = true;
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}
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if(control.up)
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{
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speed += move_direction;
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}
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if(control.down)
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{
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speed -= move_direction;
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}
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if(control.left)
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{
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speed += move_direction.crossProduct(v3f(0,1,0));
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}
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if(control.right)
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{
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speed += move_direction.crossProduct(v3f(0,-1,0));
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}
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if(control.jump)
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{
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if(touching_ground){
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v3f speed = getSpeed();
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speed.Y = 6.5*BS;
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setSpeed(speed);
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}
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}
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// The speed of the player (Y is ignored)
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if(superspeed)
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speed = speed.normalize() * walkspeed_max * 5;
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else
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speed = speed.normalize() * walkspeed_max;
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f32 inc = walk_acceleration * BS * dtime;
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// Accelerate to target speed with maximum increment
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accelerate(speed, inc);
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}
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