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

126 lines
2.8 KiB
C++
Raw Normal View History

/* copyright (c) 2007 magnus auvinen, see licence.txt for more info */
#include <engine/config.h>
#include <engine/server.h>
#include <game/generated/protocol.h>
#include <game/server/gamecontext.h>
#include "light.h"
#include <game/mapitems.h>
//////////////////////////////////////////////////
// CLight
//////////////////////////////////////////////////
CLight::CLight(CGameWorld *pGameWorld, vec2 Pos, float Rotation, int Length)
: CEntity(pGameWorld, NETOBJTYPE_LASER)
{
m_Tick=(Server()->TickSpeed()*0.15f);
m_Pos = Pos;
m_Rotation = Rotation;
m_Length = Length;
m_EvalTick = Server()->Tick();
GameWorld()->InsertEntity(this);
Step();
}
bool CLight::HitCharacter()
{
std::list < CCharacter * > HitCharacters = GameServer()->m_World.IntersectedCharacters(m_Pos, m_To, 0.0f, 0);
if(HitCharacters.empty()) return false;
for(std::list < CCharacter * >::iterator i = HitCharacters.begin(); i != HitCharacters.end(); i++) {
CCharacter * Char = *i;
Char->Freeze(Server()->TickSpeed()*3);
}
return true;
}
void CLight::Move()
{
if (m_Speed != 0)
{
if ((m_CurveLength>=m_Length && m_Speed>0) || (m_CurveLength<=0 && m_Speed<0))
m_Speed=-m_Speed;
m_CurveLength+=m_Speed*m_Tick + m_LengthL;
m_LengthL=0;
if (m_CurveLength>m_Length)
{
m_LengthL=m_CurveLength-m_Length;
m_CurveLength=m_Length;
}
else if(m_CurveLength<0)
{
m_LengthL=0+m_CurveLength;
m_CurveLength=0;
}
}
if(m_RotationSpeed < 0)
m_Rotation += (pi/360);
else if(m_RotationSpeed)
m_Rotation -= (pi/360);
if (m_Rotation>pi*2)
m_Rotation-=pi*2;
else if(m_Rotation<0)
m_Rotation+=pi*2;
}
void CLight::Step()
{
Move();
vec2 dir(sin(m_Rotation), cos(m_Rotation));
vec2 to2 = m_Pos + normalize(dir)*m_CurveLength;
GameServer()->Collision()->IntersectNoLaser(m_Pos, to2, &m_To,0 );
}
void CLight::Reset()
{
GameServer()->m_World.DestroyEntity(this);
}
void CLight::Tick()
{
if (Server()->Tick()%int(m_Tick)==0)
{
m_EvalTick=Server()->Tick();
int index = GameServer()->Collision()->IsCp(m_Pos.x,m_Pos.y);
if (index)
{
m_Core=GameServer()->Collision()->CpSpeed(index);
}
m_Pos+=m_Core;
if(!m_RotationSpeed) Step();
}
for (int i = 0; i < absolute(m_RotationSpeed); ++i)
{
Step();
HitCharacter();
}
HitCharacter();
return;
}
void CLight::Snap(int snapping_client)
{
if(NetworkClipped(snapping_client,m_Pos) && NetworkClipped(snapping_client,m_To))
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_To.x;
pObj->m_FromY = (int)m_To.y;
int StartTick = m_EvalTick;
if (StartTick<Server()->Tick()-4)
StartTick=Server()->Tick()-4;
else if (StartTick>Server()->Tick())
StartTick=Server()->Tick();
pObj->m_StartTick = StartTick;
}