openspades/Sources/Client/Client_Update.cpp

/*
 Copyright (c) 2013 yvt
 based on code of pysnip (c) Mathias Kaerlev 2011-2012.
 
 This file is part of OpenSpades.
 
 OpenSpades 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 3 of the License, or
 (at your option) any later version.
 
 OpenSpades 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 OpenSpades.  If not, see <http://www.gnu.org/licenses/>.
 
 */

#include "Client.h"

#include <Core/ConcurrentDispatch.h>
#include <Core/Settings.h>
#include <Core/Strings.h>

#include "IAudioChunk.h"
#include "IAudioDevice.h"

#include "ClientUI.h"
#include "PaletteView.h"
#include "LimboView.h"
#include "MapView.h"
#include "Corpse.h"
#include "ClientPlayer.h"
#include "ILocalEntity.h"
#include "ChatWindow.h"
#include "CenterMessageView.h"
#include "Tracer.h"
#include "FallingBlock.h"
#include "HurtRingView.h"

#include "World.h"
#include "Weapon.h"
#include "GameMap.h"
#include "Grenade.h"

#include "NetClient.h"

DEFINE_SPADES_SETTING(cg_ragdoll, "1");
SPADES_SETTING(cg_blood);
DEFINE_SPADES_SETTING(cg_ejectBrass, "1");

SPADES_SETTING(cg_alerts);
SPADES_SETTING(cg_centerMessage);

SPADES_SETTING(cg_shake);

namespace spades {
	namespace client {
		
#pragma mark - World States
		
		float Client::GetSprintState() {
			if(!world) return 0.f;
			if(!world->GetLocalPlayer())
				return 0.f;
			
			ClientPlayer *p = clientPlayers[(int)world->GetLocalPlayerIndex()];
			if(!p)
				return 0.f;
			return p->GetSprintState();
		}
		
		float Client::GetAimDownState() {
			if(!world) return 0.f;
			if(!world->GetLocalPlayer())
				return 0.f;
			
			ClientPlayer *p = clientPlayers[(int)world->GetLocalPlayerIndex()];
			if(!p)
				return 0.f;
			return p->GetAimDownState();
		}
		
#pragma mark - World Actions
		/** Captures the color of the block player is looking at. */
		void Client::CaptureColor() {
			if(!world) return;
			Player *p = world->GetLocalPlayer();
			if(!p) return;
			if(!p->IsAlive()) return;
			
			IntVector3 outBlockCoord;
			uint32_t col;
			if(!world->GetMap()->CastRay(p->GetEye(),
										 p->GetFront(),
										 256.f, outBlockCoord)){
				auto c = world->GetFogColor();
				col = c.x | c.y<<8 | c.z<<16;
			}else{
				col = world->GetMap()->GetColorWrapped(outBlockCoord.x,
																outBlockCoord.y,
																outBlockCoord.z);
			}
			
			IntVector3 colV;
			colV.x = (uint8_t)(col);
			colV.y = (uint8_t)(col >> 8);
			colV.z = (uint8_t)(col >> 16);
			
			p->SetHeldBlockColor(colV);
			net->SendHeldBlockColor();
		}
		
		void Client::SetSelectedTool(Player::ToolType type, bool quiet) {
			if(type == world->GetLocalPlayer()->GetTool())
				return;
			lastTool = world->GetLocalPlayer()->GetTool();
			hasLastTool = true;
			
			world->GetLocalPlayer()->SetTool(type);
			net->SendTool();
			
			if(!quiet) {
				Handle<IAudioChunk> c = audioDevice->RegisterSound("Sounds/Weapons/SwitchLocal.wav");
				audioDevice->PlayLocal(c, MakeVector3(.4f, -.3f, .5f),
									   AudioParam());
			}
		}
		
#pragma mark - World Update
		
		void Client::UpdateWorld(float dt) {
			SPADES_MARK_FUNCTION();
			
			Player* player = world->GetLocalPlayer();
			
			if(player){
				
				// disable input when UI is open
				if(scriptedUI->NeedsInput()) {
					weapInput.primary = false;
					if(player->GetTeamId() >= 2 || player->GetTool() != Player::ToolWeapon) {
						weapInput.secondary = false;
					}
					playerInput = PlayerInput();
				}
				
				if(player->GetTeamId() >= 2) {
					UpdateLocalSpectator(dt);
				}else{
					UpdateLocalPlayer(dt);
				}
			}
			
#if 0
			// dynamic time step
			// physics diverges from server
			world->Advance(dt);
#else
			// accurately resembles server's physics
			// but not smooth
			if(dt > 0.f)
				worldSubFrame += dt;
			
			float frameStep = 1.f / 60.f;
			while(worldSubFrame >= frameStep){
				world->Advance(frameStep);
				worldSubFrame -= frameStep;
			}
#endif
			
			// update player view (doesn't affect physics/game logics)
			for(size_t i = 0; i < clientPlayers.size(); i++){
				if(clientPlayers[i]){
					clientPlayers[i]->Update(dt);
				}
			}
			
			// corpse never accesses audio nor renderer, so
			// we can do it in the separate thread
			class CorpseUpdateDispatch: public ConcurrentDispatch{
				Client *client;
				float dt;
			public:
				CorpseUpdateDispatch(Client *c, float dt):
				client(c), dt(dt){}
				virtual void Run(){
					for(auto& c: client->corpses){
						for(int i = 0; i < 4; i++)
							c->Update(dt / 4.f);
					}
				}
			};
			CorpseUpdateDispatch corpseDispatch(this, dt);
			corpseDispatch.Start();
			
			// local entities should be done in the client thread
			{
				decltype(localEntities)::iterator it;
				std::vector<decltype(it)> its;
				for(it = localEntities.begin(); it != localEntities.end(); it++){
					if(!(*it)->Update(dt))
						its.push_back(it);
				}
				for(size_t i = 0; i < its.size(); i++){
					localEntities.erase(its[i]);
				}
			}
			
			corpseDispatch.Join();

			if(grenadeVibration > 0.f){
				grenadeVibration -= dt;
				if(grenadeVibration < 0.f)
					grenadeVibration = 0.f;
			}

			if(grenadeVibrationSlow > 0.f){
				grenadeVibrationSlow -= dt;
				if(grenadeVibrationSlow < 0.f)
					grenadeVibrationSlow = 0.f;
			}
			
			if(hitFeedbackIconState > 0.f) {
				hitFeedbackIconState -= dt * 4.f;
				if(hitFeedbackIconState < 0.f)
					hitFeedbackIconState = 0.f;
			}
			
			if(time > lastPosSentTime + 1.f &&
			   world->GetLocalPlayer()){
				Player *p = world->GetLocalPlayer();
				if(p->IsAlive() && p->GetTeamId() < 2){
					net->SendPosition();
					lastPosSentTime = time;
				}
			}
			
		}
		
		/** Handles movement of spectating local player. */
		void Client::UpdateLocalSpectator(float dt) {
			SPADES_MARK_FUNCTION();
			
			Vector3 lastPos = followPos;
			followVel *= powf(.3f, dt);
			followPos += followVel * dt;
			
			if(followPos.x < 0.f) {
				followVel.x = fabsf(followVel.x) * 0.2f;
				followPos = lastPos + followVel * dt;
			}
			if(followPos.y < 0.f) {
				followVel.y = fabsf(followVel.y) * 0.2f;
				followPos = lastPos + followVel * dt;
			}
			if(followPos.x > (float)GetWorld()->GetMap()->Width()) {
				followVel.x = fabsf(followVel.x) * -0.2f;
				followPos = lastPos + followVel * dt;
			}
			if(followPos.y > (float)GetWorld()->GetMap()->Height()) {
				followVel.y = fabsf(followVel.y) * -0.2f;
				followPos = lastPos + followVel * dt;
			}
			
			GameMap::RayCastResult minResult;
			float minDist = 1.e+10f;
			Vector3 minShift;
			
			// check collision
			if(followVel.GetLength() < .01){
				followPos = lastPos;
				followVel *= 0.f;
			}else{
				for(int sx = -1; sx <= 1; sx ++)
					for(int sy = -1; sy <= 1; sy++)
						for(int sz = -1; sz <= 1; sz++){
							GameMap::RayCastResult result;
							Vector3 shift = {sx*.1f, sy*.1f,sz*.1f};
							result = map->CastRay2(lastPos+shift, followPos - lastPos,
												   256);
							if(result.hit && !result.startSolid &&
							   Vector3::Dot(result.hitPos - followPos - shift,
											followPos - lastPos) < 0.f){
								   
								   float dist =  Vector3::Dot(result.hitPos - followPos - shift,
															  (followPos - lastPos).Normalize());
								   if(dist < minDist){
									   minResult = result;
									   minDist = dist;
									   minShift = shift;
								   }
							   }
						}
				
			}
			if(minDist < 1.e+9f){
				GameMap::RayCastResult result = minResult;
				Vector3 shift = minShift;
				followPos = result.hitPos - shift;
				followPos.x += result.normal.x * .02f;
				followPos.y += result.normal.y * .02f;
				followPos.z += result.normal.z * .02f;
				
				// bounce
				Vector3 norm = {(float)result.normal.x,
					(float)result.normal.y,
					(float)result.normal.z};
				float dot = Vector3::Dot(followVel, norm);
				followVel -= norm * (dot * 1.2f);
			}
			
			// acceleration
			Vector3 front;
			Vector3 up = {0, 0, -1};
			
			front.x = -cosf(followYaw) * cosf(followPitch);
			front.y = -sinf(followYaw) * cosf(followPitch);
			front.z = sinf(followPitch);
			
			Vector3 right = -Vector3::Cross(up, front).Normalize();
			Vector3 up2 = Vector3::Cross(right, front).Normalize();
			
			float scale = 10.f * dt;
			if(playerInput.sprint){
				scale *= 3.f;
			}
			front *= scale;
			right *= scale;
			up2 *= scale;
			
			if(playerInput.moveForward){
				followVel += front;
			}else if(playerInput.moveBackward){
				followVel -= front;
			}
			if(playerInput.moveLeft){
				followVel -= right;
			}else if(playerInput.moveRight){
				followVel += right;
			}
			if(playerInput.jump){
				followVel += up2;
			}else if(playerInput.crouch){
				followVel -= up2;
			}
			
			SPAssert(followVel.GetLength() < 100.f);
		}
		
		/** Handles movement of joined local player. */
		void Client::UpdateLocalPlayer(float dt) {
			SPADES_MARK_FUNCTION();
			
			auto *player = world->GetLocalPlayer();
			
			PlayerInput inp = playerInput;
			WeaponInput winp = weapInput;
			
			// weapon/tools are disabled while/soon after sprinting
			if(GetSprintState() > 0.001f) {
				winp.primary = false;
				winp.secondary = false;
			}
			
			// don't allow to stand up when ceilings are too low
			if(inp.crouch == false){
				if(player->GetInput().crouch){
					if(!player->TryUncrouch(false)){
						inp.crouch = true;
					}
				}
			}
			
			// don't allow jumping in the air
			if(inp.jump){
				if(!player->IsOnGroundOrWade())
					inp.jump = false;
			}
			
			// weapon/tools are disabled while changing tools
			if(clientPlayers[world->GetLocalPlayerIndex()]->IsChangingTool()) {
				winp.primary = false;
				winp.secondary = false;
			}
			
			// disable weapon while reloading (except shotgun)
			if(player->GetTool() == Player::ToolWeapon &&
			   player->IsAwaitingReloadCompletion() &&
			   !player->GetWeapon()->IsReloadSlow()) {
				winp.primary = false;
			}
			
			player->SetInput(inp);
			player->SetWeaponInput(winp);
			
			//send player input
			// FIXME: send only there are any changed?
			net->SendPlayerInput(inp);
			net->SendWeaponInput(winp);
			
			if(hasDelayedReload) {
				world->GetLocalPlayer()->Reload();
				net->SendReload();
				hasDelayedReload = false;
			}
			
			//PlayerInput actualInput = player->GetInput();
			WeaponInput actualWeapInput = player->GetWeaponInput();
			
			if(actualWeapInput.secondary &&
			   player->IsToolWeapon() &&
			   player->IsAlive()){
			}else{
				if(player->IsToolWeapon()){
					// there is a possibility that player has respawned or something.
					// stop aiming down
					weapInput.secondary = false;
				}
			}
			
			// is the selected tool no longer usable (ex. out of ammo)?
			if(!player->IsToolSelectable(player->GetTool())) {
				// release mouse button before auto-switching tools
				winp.primary = false;
				winp.secondary = false;
				weapInput = winp;
				net->SendWeaponInput(weapInput);
				actualWeapInput = winp = player->GetWeaponInput();
				
				// select another tool
				Player::ToolType t = player->GetTool();
				do{
					switch(t){
						case Player::ToolSpade:
							t = Player::ToolGrenade;
							break;
						case Player::ToolBlock:
							t = Player::ToolSpade;
							break;
						case Player::ToolWeapon:
							t = Player::ToolBlock;
							break;
						case Player::ToolGrenade:
							t = Player::ToolWeapon;
							break;
					}
				}while(!world->GetLocalPlayer()->IsToolSelectable(t));
				SetSelectedTool(t);
			}
			
			// send orientation
			Vector3 curFront = player->GetFront();
			if(curFront.x != lastFront.x ||
			   curFront.y != lastFront.y ||
			   curFront.z != lastFront.z) {
				lastFront = curFront;
				net->SendOrientation(curFront);
			}
			
			lastKills = world->GetPlayerPersistent(player->GetId()).kills;
			
			// show block count when building block lines.
			if(player->IsAlive() &&
			   player->GetTool() == Player::ToolBlock &&
			   player->GetWeaponInput().secondary &&
			   player->IsBlockCursorDragging()) {
				if(player->IsBlockCursorActive()) {
					auto blocks = std::move
					(world->CubeLine(player->GetBlockCursorDragPos(),
									 player->GetBlockCursorPos(),
									 256));
					auto msg = _TrN("Client",
									"{0} block", "{0} blocks",
									blocks.size());
					AlertType type =
					static_cast<int>(blocks.size()) > player->GetNumBlocks() ?
					AlertType::Warning : AlertType::Notice;
					ShowAlert(msg, type, 0.f, true);
				}else{
					// invalid
					auto msg = _Tr("Client", "-- blocks");
					AlertType type = AlertType::Warning;
					ShowAlert(msg, type, 0.f, true);
				}
			}
			
			if(player->IsAlive())
				lastAliveTime = time;
			
			if(player->GetHealth() < lastHealth){
				// ouch!
				lastHealth = player->GetHealth();
				lastHurtTime = world->GetTime();
				
				Handle<IAudioChunk> c;
				switch((mt_engine_client() >> 3) & 3){
					case 0:
						c = audioDevice->RegisterSound("Sounds/Weapons/Impacts/FleshLocal1.wav");
						break;
					case 1:
						c = audioDevice->RegisterSound("Sounds/Weapons/Impacts/FleshLocal2.wav");
						break;
					case 2:
						c = audioDevice->RegisterSound("Sounds/Weapons/Impacts/FleshLocal3.wav");
						break;
					case 3:
						c = audioDevice->RegisterSound("Sounds/Weapons/Impacts/FleshLocal4.wav");
						break;
				}
				audioDevice->PlayLocal(c, AudioParam());
				
				float hpper = player->GetHealth() / 100.f;
				int cnt = 18 - (int)(player->GetHealth() / 100.f * 8.f);
				hurtSprites.resize(std::max(cnt, 6));
				for(size_t i = 0; i < hurtSprites.size(); i++) {
					HurtSprite& spr = hurtSprites[i];
					spr.angle = GetRandom() * (2.f * static_cast<float>(M_PI));
					spr.scale = .2f + GetRandom() * GetRandom() * .7f;
					spr.horzShift = GetRandom();
					spr.strength = .3f + GetRandom() * .7f;
					if(hpper > .5f) {
						spr.strength *= 1.5f - hpper;
					}
				}
				
			}else{
				lastHealth = player->GetHealth();
			}
			
			inp.jump = false;
		}
		
		
#pragma mark - IWorldListener Handlers
		
		void Client::PlayerObjectSet(int id) {
			if(clientPlayers[id]){
				clientPlayers[id]->Invalidate();
				clientPlayers[id] = nullptr;
			}
			
			Player *p = world->GetPlayer(id);
			if(p)
				clientPlayers[id].Set(new ClientPlayer(p, this), false);
		}
		
		void Client::PlayerJumped(spades::client::Player *p){
			SPADES_MARK_FUNCTION();
			
			if(!IsMuted()){
				
				Handle<IAudioChunk> c = p->GetWade() ?
				audioDevice->RegisterSound("Sounds/Player/WaterJump.wav"):
				audioDevice->RegisterSound("Sounds/Player/Jump.wav");
				audioDevice->Play(c, p->GetOrigin(),
								  AudioParam());
			}
		}
		
		void Client::PlayerLanded(spades::client::Player *p,
								  bool hurt) {
			SPADES_MARK_FUNCTION();
			
			if(!IsMuted()){
				Handle<IAudioChunk> c;
				if(hurt)
					c = audioDevice->RegisterSound("Sounds/Player/FallHurt.wav");
				else if(p->GetWade())
					c = audioDevice->RegisterSound("Sounds/Player/WaterLand.wav");
				else
					c = audioDevice->RegisterSound("Sounds/Player/Land.wav");
				audioDevice->Play(c, p->GetOrigin(),
								  AudioParam());
			}
		}
		
		void Client::PlayerMadeFootstep(spades::client::Player *p){
			SPADES_MARK_FUNCTION();
			
			if(!IsMuted()){
				const char *snds[] = {
					"Sounds/Player/Footstep1.wav",
					"Sounds/Player/Footstep2.wav",
					"Sounds/Player/Footstep3.wav",
					"Sounds/Player/Footstep4.wav",
					"Sounds/Player/Footstep5.wav",
					"Sounds/Player/Footstep6.wav",
					"Sounds/Player/Footstep7.wav",
					"Sounds/Player/Footstep8.wav"
				};
				const char *rsnds[] = {
					"Sounds/Player/Run1.wav",
					"Sounds/Player/Run2.wav",
					"Sounds/Player/Run3.wav",
					"Sounds/Player/Run4.wav",
					"Sounds/Player/Run5.wav",
					"Sounds/Player/Run6.wav",
					"Sounds/Player/Run7.wav",
					"Sounds/Player/Run8.wav",
					"Sounds/Player/Run9.wav",
					"Sounds/Player/Run10.wav",
					"Sounds/Player/Run11.wav",
					"Sounds/Player/Run12.wav",
				};
				const char *wsnds[] = {
					"Sounds/Player/Wade1.wav",
					"Sounds/Player/Wade2.wav",
					"Sounds/Player/Wade3.wav",
					"Sounds/Player/Wade4.wav",
					"Sounds/Player/Wade5.wav",
					"Sounds/Player/Wade6.wav",
					"Sounds/Player/Wade7.wav",
					"Sounds/Player/Wade8.wav"
				};
				bool sprinting = clientPlayers[p->GetId()] ? clientPlayers[p->GetId()]->GetSprintState() > 0.5f : false;
				Handle<IAudioChunk> c = p->GetWade() ?
				audioDevice->RegisterSound(wsnds[(mt_engine_client() >> 8) % 8]):
				audioDevice->RegisterSound(snds[(mt_engine_client() >> 8) % 8]);
				audioDevice->Play(c, p->GetOrigin(),
								  AudioParam());
				if(sprinting && !p->GetWade()) {
					AudioParam param;
					param.volume *= clientPlayers[p->GetId()]->GetSprintState();
					c = audioDevice->RegisterSound(rsnds[(mt_engine_client() >> 8) % 12]);
					audioDevice->Play(c, p->GetOrigin(),
									  param);
				}
			}
		}
		
		void Client::PlayerFiredWeapon(spades::client::Player *p) {
			SPADES_MARK_FUNCTION();
			
			if(p == world->GetLocalPlayer()){
				localFireVibrationTime = time;
			}
			
			clientPlayers[p->GetId()]->FiredWeapon();
		}
		void Client::PlayerDryFiredWeapon(spades::client::Player *p) {
			SPADES_MARK_FUNCTION();
			
			if(!IsMuted()){
				bool isLocal = p == world->GetLocalPlayer();
				Handle<IAudioChunk> c = audioDevice->RegisterSound("Sounds/Weapons/DryFire.wav");
				if(isLocal)
					audioDevice->PlayLocal(c, MakeVector3(.4f, -.3f, .5f),
										   AudioParam());
				else
					audioDevice->Play(c, p->GetEye() + p->GetFront() * 0.5f
									  - p->GetUp() * .3f
									  + p->GetRight() * .4f,
									  AudioParam());
			}
		}
		
		void Client::PlayerReloadingWeapon(spades::client::Player *p) {
			SPADES_MARK_FUNCTION();
			
			clientPlayers[p->GetId()]->ReloadingWeapon();
		}
		
		void Client::PlayerReloadedWeapon(spades::client::Player *p){
			SPADES_MARK_FUNCTION();
			
			
			clientPlayers[p->GetId()]->ReloadedWeapon();
		}
		
		void Client::PlayerChangedTool(spades::client::Player *p){
			SPADES_MARK_FUNCTION();
			
			if(!IsMuted()){
				bool isLocal = p == world->GetLocalPlayer();
				Handle<IAudioChunk> c;
				if(isLocal){
					// played by ClientPlayer::Update
					return;
				}else{
					c = audioDevice->RegisterSound("Sounds/Weapons/Switch.wav");
				}
				if(isLocal)
					audioDevice->PlayLocal(c, MakeVector3(.4f, -.3f, .5f),
										   AudioParam());
				else
					audioDevice->Play(c, p->GetEye() + p->GetFront() * 0.5f
									  - p->GetUp() * .3f
									  + p->GetRight() * .4f,
									  AudioParam());
			}
		}
		
		void Client::PlayerRestocked(spades::client::Player *p){
			if(!IsMuted()){
				bool isLocal = p == world->GetLocalPlayer();
				Handle<IAudioChunk> c = isLocal ?
				audioDevice->RegisterSound("Sounds/Weapons/RestockLocal.wav"):
				audioDevice->RegisterSound("Sounds/Weapons/Restock.wav");
				if(isLocal)
					audioDevice->PlayLocal(c, MakeVector3(.4f, -.3f, .5f),
										   AudioParam());
				else
					audioDevice->Play(c, p->GetEye() + p->GetFront() * 0.5f
									  - p->GetUp() * .3f
									  + p->GetRight() * .4f,
									  AudioParam());
			}
		}
		
		void Client::PlayerThrownGrenade(spades::client::Player *p, Grenade *g){
			SPADES_MARK_FUNCTION();
			
			if(!IsMuted()){
				bool isLocal = p == world->GetLocalPlayer();
				Handle<IAudioChunk> c = audioDevice->RegisterSound("Sounds/Weapons/Grenade/Throw.wav");
				
				if(g && isLocal){
					net->SendGrenade(g);
				}
				
				if(isLocal)
					audioDevice->PlayLocal(c, MakeVector3(.4f, 0.1f, .3f),
										   AudioParam());
				else
					audioDevice->Play(c, p->GetEye() + p->GetFront() * 0.5f
									  - p->GetUp() * .2f
									  + p->GetRight() * .3f,
									  AudioParam());
			}
		}
		
		void Client::PlayerMissedSpade(spades::client::Player *p){
			SPADES_MARK_FUNCTION();
			
			if(!IsMuted()){
				bool isLocal = p == world->GetLocalPlayer();
				Handle<IAudioChunk> c = audioDevice->RegisterSound("Sounds/Weapons/Spade/Miss.wav");
				if(isLocal)
					audioDevice->PlayLocal(c, MakeVector3(.2f, -.1f, 0.7f),
										   AudioParam());
				else
					audioDevice->Play(c, p->GetOrigin() + p->GetFront() * 0.8f
									  - p->GetUp() * .2f,
									  AudioParam());
			}
		}
		
		void Client::PlayerHitBlockWithSpade(spades::client::Player *p,
											 Vector3 hitPos,
											 IntVector3 blockPos,
											 IntVector3 normal){
			SPADES_MARK_FUNCTION();
			
			uint32_t col = map->GetColor(blockPos.x, blockPos.y, blockPos.z);
			IntVector3 colV = {(uint8_t)col,
				(uint8_t)(col >> 8), (uint8_t)(col >> 16)};
			Vector3 shiftedHitPos = hitPos;
			shiftedHitPos.x += normal.x * .05f;
			shiftedHitPos.y += normal.y * .05f;
			shiftedHitPos.z += normal.z * .05f;
			
			EmitBlockFragments(shiftedHitPos, colV);
			
			if(p == world->GetLocalPlayer()){
				localFireVibrationTime = time;
			}
			
			if(!IsMuted()){
				bool isLocal = p == world->GetLocalPlayer();
				Handle<IAudioChunk> c = audioDevice->RegisterSound("Sounds/Weapons/Spade/HitBlock.wav");
				if(isLocal)
					audioDevice->PlayLocal(c, MakeVector3(.1f, -.1f, 1.2f),
										   AudioParam());
				else
					audioDevice->Play(c, p->GetOrigin() + p->GetFront() * 0.5f
									  - p->GetUp() * .2f,
									  AudioParam());
			}
		}
		
		void Client::PlayerKilledPlayer(spades::client::Player *killer,
										spades::client::Player *victim,
										KillType kt) {
			// play hit sound
			if(kt == KillTypeWeapon ||
			   kt == KillTypeHeadshot) {
				// don't play on local: see BullethitPlayer
				if(victim != world->GetLocalPlayer()) {
					if(!IsMuted()){
						Handle<IAudioChunk> c;
						switch(mt_engine_client()%3){
							case 0:
								c = audioDevice->RegisterSound("Sounds/Weapons/Impacts/Flesh1.wav");
								break;
							case 1:
								c = audioDevice->RegisterSound("Sounds/Weapons/Impacts/Flesh2.wav");
								break;
							case 2:
								c = audioDevice->RegisterSound("Sounds/Weapons/Impacts/Flesh3.wav");
								break;
						}
						AudioParam param;
						param.volume = 4.f;
						audioDevice->Play(c, victim->GetEye(), param);
					}
				}
			}
			
			// begin following
			if(victim == world->GetLocalPlayer()){
				followingPlayerId = victim->GetId();
				
				Vector3 v = -victim->GetFront();
				followYaw = atan2(v.y, v.x);
				followPitch = 30.f * M_PI /180.f;
			}
			
			// emit blood (also for local player)
			// FIXME: emiting blood for either
			// client-side or server-side hit?
			switch(kt){
				case KillTypeGrenade:
				case KillTypeHeadshot:
				case KillTypeMelee:
				case KillTypeWeapon:
					Bleed(victim->GetEye());
					break;
				default:
					break;
			}
			
			// create ragdoll corpse
			if(cg_ragdoll && victim->GetTeamId() < 2){
				Corpse *corp;
				corp = new Corpse(renderer, map, victim);
				if(victim == world->GetLocalPlayer())
					lastMyCorpse = corp;
				if(killer != victim && kt != KillTypeGrenade){
					Vector3 dir = victim->GetPosition() - killer->GetPosition();
					dir = dir.Normalize();
					if(kt == KillTypeMelee){
						dir *= 6.f;
					}else{
						if(killer->GetWeapon()->GetWeaponType() == SMG_WEAPON){
							dir *= 2.8f;
						}else if(killer->GetWeapon()->GetWeaponType() == SHOTGUN_WEAPON){
							dir *= 4.5f;
						}else{
							dir *= 3.5f;
						}
					}
					corp->AddImpulse(dir);
				}else if(kt == KillTypeGrenade){
					corp->AddImpulse(MakeVector3(0, 0, -4.f - GetRandom() * 4.f));
				}
				corp->AddImpulse(victim->GetVelocty() * 32.f);
				corpses.emplace_back(corp);
				
				if(corpses.size() > corpseHardLimit){
					corpses.pop_front();
				}else if(corpses.size() > corpseSoftLimit){
					RemoveInvisibleCorpses();
				}
			}
			
			// add chat message
			std::string s;
			s = ChatWindow::TeamColorMessage(killer->GetName(), killer->GetTeamId());
			
			std::string cause;
			bool ff = killer->GetTeamId() == victim->GetTeamId();
			if(killer == victim)
				ff = false;
			
			cause = " [";
			Weapon* w = killer ? killer->GetWeapon() : nullptr;	//only used in case of KillTypeWeapon
			cause += ChatWindow::killImage( kt, w ? w->GetWeaponType() : RIFLE_WEAPON );
			cause += "] ";
			
			if(ff)
				s += ChatWindow::ColoredMessage(cause, MsgColorRed);
			else if (killer == world->GetLocalPlayer() || victim == world->GetLocalPlayer())
				s += ChatWindow::ColoredMessage(cause, MsgColorBlack);
			else
				s += cause;
			
			if(killer != victim){
				s += ChatWindow::TeamColorMessage(victim->GetName(), victim->GetTeamId());
			}
			
			killfeedWindow->AddMessage(s);
			
			// log to netlog
			if(killer != victim) {
				NetLog("%s (%s)%s%s (%s)",
					   killer->GetName().c_str(),
					   world->GetTeam(killer->GetTeamId()).name.c_str(),
					   cause.c_str(),
					   victim->GetName().c_str(),
					   world->GetTeam(victim->GetTeamId()).name.c_str());
			}else{
				NetLog("%s (%s)%s",
					   killer->GetName().c_str(),
					   world->GetTeam(killer->GetTeamId()).name.c_str(),
					   cause.c_str());
			}
			
			// show big message if player is involved
			if(victim != killer){
				Player* local = world->GetLocalPlayer();
				if(killer == local || victim == local){
					std::string msg;
					if( killer == local ) {
						if ((int)cg_centerMessage == 2) msg = _Tr("Client", "You have killed {0}", victim->GetName());
					} else {
						msg = _Tr("Client", "You were killed by {0}", killer->GetName());
					}
					centerMessageView->AddMessage(msg);
				}
			}
		}
		
		void Client::BulletHitPlayer(spades::client::Player *hurtPlayer,
									 HitType type,
									 spades::Vector3 hitPos,
									 spades::client::Player *by) {
			SPADES_MARK_FUNCTION();
			
			SPAssert(type != HitTypeBlock);
			
			// don't bleed local player
			if(hurtPlayer != world->GetLocalPlayer() ||
			   ShouldRenderInThirdPersonView()){
				Bleed(hitPos);
			}
			
			if(hurtPlayer == world->GetLocalPlayer()){
				// don't player hit sound now;
				// local bullet impact sound is
				// played by checking the decrease of HP
				return;
			}
			
			if(!IsMuted()){
				if(type == HitTypeMelee){
					Handle<IAudioChunk> c =
					audioDevice->RegisterSound("Sounds/Weapons/Spade/HitPlayer.wav");
					audioDevice->Play(c, hitPos,
									  AudioParam());
				}else{
					Handle<IAudioChunk> c;
					switch((mt_engine_client()>>6)%3){
						case 0:
							c = audioDevice->RegisterSound("Sounds/Weapons/Impacts/Flesh1.wav");
							break;
						case 1:
							c = audioDevice->RegisterSound("Sounds/Weapons/Impacts/Flesh2.wav");
							break;
						case 2:
							c = audioDevice->RegisterSound("Sounds/Weapons/Impacts/Flesh3.wav");
							break;
					}
					AudioParam param;
					param.volume = 4.f;
					audioDevice->Play(c, hitPos,
									  param);
				}
			}
			
			if(by == world->GetLocalPlayer() &&
			   hurtPlayer){
				net->SendHit(hurtPlayer->GetId(), type);
				
				hitFeedbackIconState = 1.f;
				if(hurtPlayer->GetTeamId() == world->GetLocalPlayer()->GetTeamId()) {
					hitFeedbackFriendly = true;
				}else{
					hitFeedbackFriendly = false;
				}
			}
			
			
			
		}
		
		void Client::BulletHitBlock(Vector3 hitPos,
									IntVector3 blockPos,
									IntVector3 normal){
			SPADES_MARK_FUNCTION();
			
			uint32_t col = map->GetColor(blockPos.x, blockPos.y, blockPos.z);
			IntVector3 colV = {(uint8_t)col,
				(uint8_t)(col >> 8), (uint8_t)(col >> 16)};
			Vector3 shiftedHitPos = hitPos;
			shiftedHitPos.x += normal.x * .05f;
			shiftedHitPos.y += normal.y * .05f;
			shiftedHitPos.z += normal.z * .05f;
			
			if(blockPos.z == 63) {
				BulletHitWaterSurface(shiftedHitPos);
				if(!IsMuted()){
					AudioParam param;
					param.volume = 2.f;
					
					Handle<IAudioChunk> c;
					
					param.pitch = .9f + GetRandom() * 0.2f;
					switch((mt_engine_client() >> 6) & 3){
						case 0:
							c = audioDevice->RegisterSound("Sounds/Weapons/Impacts/Water1.wav");
							break;
						case 1:
							c = audioDevice->RegisterSound("Sounds/Weapons/Impacts/Water2.wav");
							break;
						case 2:
							c = audioDevice->RegisterSound("Sounds/Weapons/Impacts/Water3.wav");
							break;
						case 3:
							c = audioDevice->RegisterSound("Sounds/Weapons/Impacts/Water4.wav");
							break;
					}
					audioDevice->Play(c, shiftedHitPos,
									  param);
				}
			}else{
				EmitBlockFragments(shiftedHitPos, colV);
				
				if(!IsMuted()){
					AudioParam param;
					param.volume = 2.f;
					
					Handle<IAudioChunk> c;
					
					switch((mt_engine_client() >> 6) & 3) {
						case 0:
						case 1:
						case 2:
						case 3:
							c = audioDevice->RegisterSound("Sounds/Weapons/Impacts/Block.wav");
							break;
					}
					audioDevice->Play(c, shiftedHitPos,
									  param);
					
					param.pitch = .9f + GetRandom() * 0.2f;
					param.volume = 2.f;
					switch((mt_engine_client() >> 6) & 3){
						case 0:
							c = audioDevice->RegisterSound("Sounds/Weapons/Impacts/Ricochet1.wav");
							break;
						case 1:
							c = audioDevice->RegisterSound("Sounds/Weapons/Impacts/Ricochet2.wav");
							break;
						case 2:
							c = audioDevice->RegisterSound("Sounds/Weapons/Impacts/Ricochet3.wav");
							break;
						case 3:
							c = audioDevice->RegisterSound("Sounds/Weapons/Impacts/Ricochet4.wav");
							break;
					}
					audioDevice->Play(c, shiftedHitPos,
									  param);
				}
			}
			
			
			
		}
		
		void Client::AddBulletTracer(spades::client::Player *player,
									 spades::Vector3 muzzlePos,
									 spades::Vector3 hitPos) {
			SPADES_MARK_FUNCTION();
			
			Tracer *t;
			float vel;
			switch(player->GetWeapon()->GetWeaponType()) {
				case RIFLE_WEAPON:
					vel = 700.f;
					break;
				case SMG_WEAPON:
					vel = 360.f;
					break;
				case SHOTGUN_WEAPON:
					return;
			}
			t = new Tracer(this, muzzlePos, hitPos, vel);
			AddLocalEntity(t);
		}
		
		void Client::BlocksFell(std::vector<IntVector3> blocks) {
			SPADES_MARK_FUNCTION();
			
			if(blocks.empty())
				return;
			FallingBlock *b = new FallingBlock(this, blocks);
			AddLocalEntity(b);
			
			if(!IsMuted()){
				
				IntVector3 v = blocks[0];
				Vector3 o;
				o.x = v.x; o.y = v.y; o.z = v.z;
				o += .5f;
				
				Handle<IAudioChunk> c =
				audioDevice->RegisterSound("Sounds/Misc/BlockFall.wav");
				audioDevice->Play(c, o,
								  AudioParam());
			}
		}
		
		void Client::GrenadeBounced(spades::client::Grenade *g){
			SPADES_MARK_FUNCTION();
			
			if(g->GetPosition().z < 63.f){
				if(!IsMuted()){
					Handle<IAudioChunk> c = audioDevice->RegisterSound("Sounds/Weapons/Grenade/Bounce.wav");
					audioDevice->Play(c, g->GetPosition(),
									  AudioParam());
				}
			}
		}
		
		void Client::GrenadeDroppedIntoWater(spades::client::Grenade *g){
			SPADES_MARK_FUNCTION();
			
			if(!IsMuted()){
				Handle<IAudioChunk> c = audioDevice->RegisterSound("Sounds/Weapons/Grenade/DropWater.wav");
				audioDevice->Play(c, g->GetPosition(),
								  AudioParam());
			}
		}
		
		void Client::GrenadeExploded(spades::client::Grenade *g) {
			SPADES_MARK_FUNCTION();
			
			bool inWater = g->GetPosition().z > 63.f;
			
			if(inWater){
				if(!IsMuted()){
					Handle<IAudioChunk> c = audioDevice->RegisterSound("Sounds/Weapons/Grenade/WaterExplode.wav");
					AudioParam param;
					param.volume = 10.f;
					audioDevice->Play(c, g->GetPosition(),
									  param);
					
					c = audioDevice->RegisterSound("Sounds/Weapons/Grenade/WaterExplodeFar.wav");
					param.volume = 6.f;
					param.referenceDistance = 10.f;
					audioDevice->Play(c, g->GetPosition(),
									  param);
					
					
					c = audioDevice->RegisterSound("Sounds/Weapons/Grenade/WaterExplodeStereo.wav");
					param.volume = 2.f;
					audioDevice->Play(c, g->GetPosition(),
									  param);
				}
				
				GrenadeExplosionUnderwater(g->GetPosition());
			}else{
				
				GrenadeExplosion(g->GetPosition());
				
				if(!IsMuted()){
					Handle<IAudioChunk> c, cs;
					
					switch((mt_engine_client() >> 8) & 1){
						case 0:
							c = audioDevice->RegisterSound("Sounds/Weapons/Grenade/Explode1.wav");
							cs = audioDevice->RegisterSound("Sounds/Weapons/Grenade/ExplodeStereo1.wav");
							break;
						case 1:
							c = audioDevice->RegisterSound("Sounds/Weapons/Grenade/Explode2.wav");
							cs = audioDevice->RegisterSound("Sounds/Weapons/Grenade/ExplodeStereo2.wav");
							break;
					}
					
					AudioParam param;
					param.volume = 30.f;
					param.referenceDistance = 5.f;
					audioDevice->Play(c, g->GetPosition(),
									  param);
					
					param.referenceDistance = 1.f;
					audioDevice->Play(cs, g->GetPosition(),
									  param);
					
					c = audioDevice->RegisterSound("Sounds/Weapons/Grenade/ExplodeFar.wav");
					param.volume = 6.f;
					param.referenceDistance = 40.f;
					audioDevice->Play(c, g->GetPosition(),
									  param);
					
					
					c = audioDevice->RegisterSound("Sounds/Weapons/Grenade/ExplodeFarStereo.wav");
					param.referenceDistance = 10.f;
					audioDevice->Play(c, g->GetPosition(),
									  param);
					
					// debri sound
					c = audioDevice->RegisterSound("Sounds/Weapons/Grenade/Debris.wav");
					param.volume = 5.f;
					param.referenceDistance = 3.f;
					IntVector3 outPos;
					Vector3 soundPos = g->GetPosition();
					if(world->GetMap()->CastRay(soundPos,
												MakeVector3(0,0,1),
												8.f, outPos)){
						soundPos.z = (float)outPos.z - .2f;
					}
					audioDevice->Play(c, soundPos,
									  param);
				}
				
			}
		}
		
		void Client::LocalPlayerPulledGrenadePin() {
			SPADES_MARK_FUNCTION();
			
			if(!IsMuted()){
				Handle<IAudioChunk> c = audioDevice->RegisterSound("Sounds/Weapons/Grenade/Fire.wav");
				audioDevice->PlayLocal(c, MakeVector3(.4f, -.3f, .5f),
									   AudioParam());
			}
		}
		
		void Client::LocalPlayerBlockAction(spades::IntVector3 v, BlockActionType type){
			SPADES_MARK_FUNCTION();
			net->SendBlockAction(v, type);
		}
		void Client::LocalPlayerCreatedLineBlock(spades::IntVector3 v1, spades::IntVector3 v2) {
			SPADES_MARK_FUNCTION();
			net->SendBlockLine(v1, v2);
		}
		
		void Client::LocalPlayerHurt(HurtType type,
									 bool sourceGiven,
									 spades::Vector3 source) {
			SPADES_MARK_FUNCTION();
			
			if(sourceGiven){
				Player * p = world->GetLocalPlayer();
				if(!p)
					return;
				Vector3 rel = source - p->GetEye();
				rel.z = 0.f; rel = rel.Normalize();
				hurtRingView->Add(rel);
			}
		}
		
		void Client::LocalPlayerBuildError(BuildFailureReason reason) {
			SPADES_MARK_FUNCTION();
			
			if(!cg_alerts) {
				PlayAlertSound();
				return;
			}
			
			switch(reason) {
				case BuildFailureReason::InsufficientBlocks:
					ShowAlert(_Tr("Client", "Insufficient blocks."),
							  AlertType::Error);
					break;
				case BuildFailureReason::InvalidPosition:
					ShowAlert(_Tr("Client", "You cannot place a block there."),
							  AlertType::Error);
					break;
			}
		}
	}
}