ddnet/src/game/server/entities/plasma.cpp

/* (c) Shereef Marzouk. See "licence DDRace.txt" and the readme.txt in the root of the distribution for more information. */
#include <engine/server.h>
#include <engine/config.h>
#include <game/generated/protocol.h>
#include <game/server/gamecontext.h>
#include <game/server/teams.h>
#include <game/server/gamemodes/DDRace.h>
#include "plasma.h"

const float ACCEL = 1.1f;

CPlasma::CPlasma(CGameWorld *pGameWorld, vec2 Pos, vec2 Dir, bool Freeze,
		bool Explosive, int ResponsibleTeam) :
		CEntity(pGameWorld, CGameWorld::ENTTYPE_LASER)
{
	m_Pos = Pos;
	m_Core = Dir;
	m_Freeze = Freeze;
	m_Explosive = Explosive;
	m_EvalTick = Server()->Tick();
	m_LifeTime = Server()->TickSpeed() * 1.5;
	m_ResponsibleTeam = ResponsibleTeam;
	GameWorld()->InsertEntity(this);
}

bool CPlasma::HitCharacter()
{
	vec2 To2;
	CCharacter *Hit = GameServer()->m_World.IntersectCharacter(m_Pos,
			m_Pos + m_Core, 0.0f, To2);
	if (!Hit)
		return false;

	if (Hit->Team() != m_ResponsibleTeam)
		return false;
	m_Freeze ? Hit->Freeze() : Hit->UnFreeze();
	if (m_Explosive)
		GameServer()->CreateExplosion(m_Pos, -1, WEAPON_GRENADE, true,
				m_ResponsibleTeam, Hit->Teams()->TeamMask(m_ResponsibleTeam));
	GameServer()->m_World.DestroyEntity(this);
	return true;
}

void CPlasma::Move()
{
	m_Pos += m_Core;
	m_Core *= ACCEL;
}

void CPlasma::Reset()
{
	GameServer()->m_World.DestroyEntity(this);
}

void CPlasma::Tick()
{
	if (m_LifeTime == 0)
	{
		Reset();
		return;
	}
	m_LifeTime--;
	Move();
	HitCharacter();

	int Res = 0;
	Res = GameServer()->Collision()->IntersectNoLaser(m_Pos, m_Pos + m_Core, 0,
			0);
	if (Res)
	{
		if (m_Explosive)
			GameServer()->CreateExplosion(
					m_Pos,
					-1,
					WEAPON_GRENADE,
					true,
					m_ResponsibleTeam,
					((CGameControllerDDRace*) GameServer()->m_pController)->m_Teams.TeamMask(
							m_ResponsibleTeam));
		Reset();
	}

}

void CPlasma::Snap(int SnappingClient)
{
	if (NetworkClipped(SnappingClient))
		return;
	CCharacter* SnapChar = GameServer()->GetPlayerChar(SnappingClient);
	int Tick = (Server()->Tick() % Server()->TickSpeed()) % 11;

	if (SnapChar && SnapChar->IsAlive()
			&& (m_Layer == LAYER_SWITCH
					&& !GameServer()->Collision()->m_pSwitchers[m_Number].m_Status[SnapChar->Team()])
			&& (!Tick))
		return;
	if (SnapChar && (SnapChar->Team() != m_ResponsibleTeam)
			&& (!SnapChar->GetPlayer()->m_IsUsingDDRaceClient
					|| (GameServer()->m_apPlayers[SnappingClient]->m_IsUsingDDRaceClient
							&& !GameServer()->m_apPlayers[SnappingClient]->m_ShowOthers)))
		return;
	CNetObj_Laser *pObj = static_cast<CNetObj_Laser *>(Server()->SnapNewItem(
			NETOBJTYPE_LASER, m_ID, sizeof(CNetObj_Laser)));
	pObj->m_X = (int) m_Pos.x;
	pObj->m_Y = (int) m_Pos.y;
	pObj->m_FromX = (int) m_Pos.x;
	pObj->m_FromY = (int) m_Pos.y;
	pObj->m_StartTick = m_EvalTick;
}