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ship.cc
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/*
ship.cc
(c) Richard Thrippleton
Licensing terms are in the 'LICENSE' file
If that file is not included with this source then permission is not given to use this source in any way whatsoever.
*/
#include <stdio.h>
#include "calc.h"
#include "error.h"
#include "frag.h"
#include "database.h"
#include "planet.h"
#include "equip.h"
#include "server.h"
#include "alliance.h"
#include "constants.h"
#include "protocol.h"
#include "player.h"
#include "ship.h"
ship::ship(cord loc,ship* lshp,alliance* tali,int aity)
{
self=-1;
if(!tali)
throw error("Null alliance given");
if(!lshp)
throw error("Null ship template given");
*this=*lshp;
vel.ang=calc::rnd(360);
vel.rad=0;
this->loc=loc;
this->all=tali;
mlck=true;
crip=false;
ply=NULL;
this->aity=aity;
resequip();
if(freemass()<=0)
{
error::debug(cls,freemass());
}
}
ship::ship()
{
self=-1;
ply=NULL;
}
ship::~ship()
{
if(self>=0 && self<ISIZE)
ships[self]=NULL;
for(int i=0;i<ISIZE;i++)
{
if(ships[i])
{
if(ships[i]->enem==this)
ships[i]->enem=NULL;
if(ships[i]->frnd==this)
ships[i]->frnd=NULL;
}
}
frag::notifydelete(this);
if(ply)
ply->notifydelete();
}
void ship::init()
{
for(int i=0;i<ISIZE;i++)
ships[i]=NULL;
}
void ship::loadlib()
{
char obnm[33]; //Object name
for(int i=0;i<LIBSIZE;i++)
{
try
{
lib[i]=new ship();
try
{
sprintf(obnm,"ShipLib%hd",i);
database::switchobj(obnm);
lib[i]->load();
lib[i]->typ=i;
}
catch(error it)
{
if(lib[i])
delete lib[i];
lib[i]=NULL;
}
}
catch(error it)
{
lib[i]=NULL;
}
}
}
void ship::purgeall()
{
for(int i=0;i<ISIZE;i++)
if(ships[i])
delete ships[i];
}
void ship::simulateall()
{
for(int i=0;i<ISIZE;i++)
{
if(ships[i])
{
ships[i]->physics();
ships[i]->maintain();
}
}
}
void ship::behaveall()
{
mstr=(mstr+1)%1000; //Increment the master strobe
for(int i=0;i<ISIZE;i++)
{
if(ships[i] && !ships[i]->crip) //Ships that exist and are non-crippled should do behaviour
ships[i]->behave();
}
for(int i=0,j=0;i<10;i++)
{
j=(mstr*(i+1))%ISIZE;
if(ships[j] && !ships[j]->crip) //Non-crippled ships need masslock checking periodically
ships[j]->mlck=planet::masslock(ships[j]->loc);
}
}
void ship::saveall()
{
char obsc[16]; //Object name scratchpad
for(int i=0;i<ISIZE;i++)
{
if(ships[i])
{
sprintf(obsc,"Ship%hd",i);
database::putobject(obsc);
ships[i]->save();
}
}
}
void ship::loadall()
{
char obsc[16]; //Object name scratchpad
for(int i=0;i<ISIZE;i++)
{
try
{
new ship(i);
}
catch(error it)
{
}
}
for(int i=0;i<ISIZE;i++)
{
try
{
if(ships[i])
{
sprintf(obsc,"Ship%hd",i);
database::switchobj(obsc);
ships[i]->loadlink();
}
}
catch(error it)
{
}
}
}
ship* ship::get(int indx)
{
if(indx>=0 && indx<ISIZE)
{
if(ships[indx])
return ships[indx];
else
return NULL;
}
else
{
return NULL;
}
}
ship* ship::libget(int indx)
{
if(indx>=0 && indx<LIBSIZE)
{
if(lib[indx])
return lib[indx];
else
return NULL;
}
else
{
return NULL;
}
}
bool ship::freeslot()
{
for(int i=0;(i<(ISIZE-server::ISIZE));i++)
if(!ships[i])
return true;
return false;
}
void ship::turn(int dir)
{
if(pow && pow->cap>0)
{
if(dir==+1)
vel.ang+=trn;
if(dir==-1)
vel.ang-=trn;
if(vel.ang>=360)
vel.ang-=360;
if(vel.ang<0)
vel.ang+=360;
}
}
void ship::accel(int dir,bool wrp)
{
int pcon; //Power consumption
double nsp; //New speed
nsp=vel.rad;
//Handle acceleration while at warp
if(vel.rad>99)
{
if(dir==+1)
nsp=vel.rad+awp;
if(dir==-1)
nsp=vel.rad-awp;
if(nsp<100)
if(wrp)
nsp=mip;
else
nsp=100;
}
//Handle acceleration if currently at impulse
//if(vel.rad<=mip)
else
{
if(dir==+1)
{
nsp=vel.rad+aip;
}
if(dir==-1)
{
nsp=vel.rad-aip;
}
if(nsp>mip)
{
if(wrp)
nsp=100;
else
nsp=mip;
}
}
if(nsp>mip && nsp<100)
nsp=mip;
if(nsp>mwp)
nsp=mwp;
if(nsp<-(mip/3)) //Prevent going faster backwards than reverse speed
nsp=-mip/3;
if(nsp<0 && !wrp && vel.rad>=0) //Prevent moving into reverse if transition not specified
nsp=0;
if(nsp>=100)
pcon=(int)(((vel.rad-nsp)*mss)/2000);
else
pcon=(int)(((vel.rad-nsp)*mss)/2);
if(pcon<0)
pcon=-pcon;
if((nsp>=100 && vel.rad<100) || (nsp<100 && vel.rad>=100))
pcon=0;
if(pow && pow->cap>=pcon)
{
pow->cap-=pcon;
vel.rad=nsp;
}
}
void ship::shoot(bool torp)
{
pol ptmp;
vect vtmp; //Temporaries for calculations
vect corr; //Correction vector
pol ptrg; //Polar to target
double dis; //Distance to target
vect vtrg; //Vector to target
cord cemt; //Location to emit frag at
pol pemt; //Polar velocity to emit frag at
vect vemt; //Vector to emit frag at
double dif; //Angle difference
long rng; //Range
bool can; //Can shoot from this slot?
equip* lnch; //Equipment doing the launching
if(!see(enem))
return;
if(vel.rad>=100)
return;
rng=0;
for(int i=0;i<32;i++)
{
if(slots[i].item && ((torp && slots[i].item->typ==equip::LAUNCHER) || (!torp && slots[i].item->typ==equip::PHASER)))
{
lnch=slots[i].item;
vtrg.xx=enem->loc.x-loc.x;
vtrg.yy=enem->loc.y-loc.y;
ptrg=vtrg.topol();
dis=ptrg.rad;
can=false;
if(lnch->typ==equip::PHASER)
{
rng=lnch->rng*lnch->trck;
if(lnch->trck)
{
corr.xx=((enem->mov.xx-mov.xx)*(ptrg.rad/lnch->trck));
corr.yy=((enem->mov.yy-mov.yy)*(ptrg.rad/lnch->trck));
if(vtrg.xx && corr.xx*10/vtrg.xx<10)
vtrg.xx+=corr.xx;
if(vtrg.yy && corr.yy*10/vtrg.yy<10)
vtrg.yy+=corr.yy;
ptrg=vtrg.topol();
ptrg.rad=dis;
}
}
if(lnch->typ==equip::LAUNCHER)
rng=((lnch->rng*lnch->rng)/2)*lnch->trck;
if(ptrg.rad<=rng)
can=true;
if(can)
{
dif=ptrg.ang-(vel.ang+slots[i].face);
if(dif>180)
dif=dif-360;
if(dif<-180)
dif=dif+360;
if(dif>(lnch->acov) || dif<-(lnch->acov))
can=false;
if(dif>(lnch->acov) || dif<-(lnch->acov))
can=false;
if(lnch->typ==equip::PHASER && pow->cap<lnch->pow)
can=false;
if(lnch->typ==equip::LAUNCHER && !(slots[i].cap>0))
can=false;
if(slots[i].rdy!=0)
can=false;
}
if(can)
{
uncloak();
ptmp=slots[i].pos;
ptmp.ang=(ptmp.ang+vel.ang);
if(ptmp.ang>=360)
ptmp.ang-=360;
vtmp=ptmp.tovect();
cemt.x=vtmp.xx+loc.x;
cemt.y=vtmp.yy+loc.y;
if(torp)
{
pemt.ang=slots[i].face+vel.ang; //Sort out the angle a torpedo is shot at
if(pemt.ang>=360)
pemt.ang-=360;
pemt.rad=lnch->trck*2; //and the speed
}
else
{
pemt.ang=ptrg.ang; //velocity of phaser fire emission, towards target at fixed speed for this weapon
pemt.rad=lnch->trck;
}
vemt=pemt.tovect();
vemt.xx+=mov.xx;
vemt.yy+=mov.yy;
if(lnch->typ==equip::PHASER)
{
pow->cap-=lnch->pow;
try
{
new frag(cemt,frag::ENERGY,lnch->spr,lnch->col,enem,this,vemt,((ptrg.ang+5)/10),lnch->pow,0,lnch->rng);
}
catch(error it)
{
}
}
if(lnch->typ==equip::LAUNCHER)
{
slots[i].cap--;
try
{
new frag(cemt,frag::HOMER,lnch->spr,lnch->col,enem,this,vemt,0,lnch->pow,lnch->trck,lnch->rng);
}
catch(error it)
{
}
}
server::registernoise(this,lnch->snd);
slots[i].rdy=lnch->rdy;
if(torp)
break;
}
}
}
}
bool ship::see(ship* tshp)
{
double rng; //Effective range
if(!tshp) //Null ship
return false;
if(tshp==this) //Can always see self
return true;
if(sens) //Set the sensor range, or default if no sensor suite
rng=sens->item->rng;
else
rng=1000;
if(tshp->vel.rad<20) //Slower ships less visible
rng-=(((rng/2)*(20-tshp->vel.rad))/20);
if(tshp->clk && tshp->clk->cap==tshp->clk->item->cap) //Cloaked ships even less visible
rng/=8;
if((tshp->loc.x-loc.x)>rng) //Bounds checking
return false;
if((tshp->loc.x-loc.x)<-rng)
return false;
if((tshp->loc.y-loc.y)>rng)
return false;
if((tshp->loc.y-loc.y)<-rng)
return false;
return true;
}
bool ship::see(planet* tpln)
{
double rng; //Effective range
if(!tpln) //Null planet
return false;
if(sens) //Set the sensor range, or default if no sensor suite
rng=sens->item->rng;
else
rng=1000;
if(tpln->typ==planet::STAR) //Can always see stars
return true;
if((tpln->loc.x-loc.x)>rng) //Bounds checking
return false;
if((tpln->loc.x-loc.x)<-rng)
return false;
if((tpln->loc.y-loc.y)>rng)
return false;
if((tpln->loc.y-loc.y)<-rng)
return false;
return true;
}
bool ship::see(frag* tfrg)
{
double rng; //Effective range
if(!tfrg) //Null frag
return false;
if(sens) //Set the sensor range, or default if no sensor suite
rng=sens->item->rng;
else
rng=1000;
if(tfrg->trg==this || tfrg->own==this) //For bandwidth spamming reasons, only see frags when really close unless they concern you
{
if((tfrg->loc.x-loc.x)>rng)
return false;
if((tfrg->loc.x-loc.x)<-rng)
return false;
if((tfrg->loc.y-loc.y)>rng)
return false;
if((tfrg->loc.y-loc.y)<-rng)
return false;
}
else
{
if((tfrg->loc.x-loc.x)>500)
return false;
if((tfrg->loc.x-loc.x)<-500)
return false;
if((tfrg->loc.y-loc.y)>500)
return false;
if((tfrg->loc.y-loc.y)<-500)
return false;
}
return true;
}
int ship::interact(char* txt,short cmod,short opr,ship* mshp)
{
char spd[32]; //Speed
if(!(mshp && mshp->ply))
return -1;
switch(cmod)
{
case CMOD_STAT:
case CMOD_SCAN:
if(opr==-1)
{
if(mshp->see(this))
{
txt+=sprintf(txt,"%s\n",cls);
if(mshp->all->opposes(all))
txt+=sprintf(txt,"Alignment:%s [hostile]\n",all->nam);
else
txt+=sprintf(txt,"Alignment:%s\n",all->nam);
if(ply)
txt+=sprintf(txt,"Commanded by %s\n",ply->nam);
if(shd && shd->cap>0)
txt+=sprintf(txt,"\nShields: Raised\n");
else
txt+=sprintf(txt,"\nShields: Down\n");
calc::getspeed(mwp,spd);
txt+=sprintf(txt,"Maximum velocity: %s\n",spd);
if(shd)
txt+=sprintf(txt,"Shield capability: %ld\n",shd->item->cap);
else
txt+=sprintf(txt,"No shields");
if(pow)
txt+=sprintf(txt,"Maximum power capacity: %ld\n",pow->item->cap);
else
txt+=sprintf(txt,"No power plant");
if(ful)
txt+=sprintf(txt,"Maximum fuel storage: %ld\n",ful->item->cap);
else
txt+=sprintf(txt,"No fuel storage");
txt+=sprintf(txt,"\nAvailable mass: %hd\n",freemass());
if(this==mshp)
{
// txt+=sprintf(txt,"\nAvailable mass: %hd\n",freemass());
txt+=sprintf(txt,"\nCredits: %ld\n",ply->cashi);
}
if(this==mshp->enem)
txt+=sprintf(txt,"\n[1] Lay in an intercept course\n");
return spr;
}
else
{
txt+=sprintf(txt,"Target not visible\n");
if(this==mshp->enem)
txt+=sprintf(txt,"\n[1] Lay in an intercept course\n");
return -1;
}
}
if(opr==1 && this==mshp->enem)
{
mshp->aity=AI_AUTOPILOT;
}
break;
case CMOD_EQUIP:
if(!(esel>=0 && esel<32 && slots[esel].item))
{
esel=-1;
for(int i=0;i<32;i++)
{
if(slots[i].item)
{
esel=i;
break;
}
}
}
if(opr==-1)
{
txt+=sprintf(txt,"Internal systems\n\n");
for(int i=0;i<32;i++)
{
if(slots[i].item)
{
if(slots[i].item->typ==equip::LAUNCHER)
if(i==esel)
txt+=sprintf(txt,">%s [%ld]<\n",slots[i].item->nam,slots[i].cap);
else
txt+=sprintf(txt," %s [%ld]\n",slots[i].item->nam,slots[i].cap);
else if(slots[i].item->typ==equip::FUELTANK && slots[i].cap==0)
if(i==esel)
txt+=sprintf(txt,">%s< [empty]\n",slots[i].item->nam);
else
txt+=sprintf(txt," %s [empty]\n",slots[i].item->nam);
else
if(i==esel)
txt+=sprintf(txt,">%s<\n",slots[i].item->nam);
else
txt+=sprintf(txt," %s\n",slots[i].item->nam);
}
else
{
if(slots[i].pos.rad>=0)
{
if(slots[i].face<=90 || slots[i].face>=270)
txt+=sprintf(txt," <Free forward port>\n");
else
txt+=sprintf(txt," <Free rear port>\n");
}
}
}
txt+=sprintf(txt,"\n");
if(shd)
txt+=sprintf(txt,"[1] Toggle shields\n");
if(clk)
txt+=sprintf(txt,"[2] Toggle cloak\n");
txt+=sprintf(txt,"\n[3] Select equipment\n");
txt+=sprintf(txt,"[4] Jettison selection\n");
}
if(opr==1)
if(shd && shd->rdy==-1)
shieldsup();
else
shieldsdown();
if(opr==2)
if(clk && clk->rdy==-1)
cloak();
else
uncloak();
if(opr==3)
{
for(int i=0,j=esel+1;i<32;i++,j++)
{
if(j>=32)
j=0;
if(slots[j].item)
{
esel=j;
break;
}
}
}
if(opr==4)
{
if(esel>=0 && esel<32 && slots[esel].item)
{
if(slots[esel].item->typ==equip::TRANSPORTER)
{
sprintf(txt,"Cannot jettison transporters");
}
else
{
sprintf(txt,"%s jettisoned",slots[esel].item->nam);
slots[esel].item=NULL;
slots[esel].rdy=0;
slots[esel].cap=0;
resequip();
}
}
}
break;
case CMOD_HAIL:
if(crip)
{
if(opr==-1)
{
txt+=sprintf(txt,"Hailing ship\n\n");
txt+=sprintf(txt,"Vessel is disabled\n\n[1] Attempt to recover it");
}
if(opr==1)
{
mshp->transport(this);
enem=NULL;
plnt=NULL;
frnd=mshp;
for(int i=0;i<ISIZE;i++)
if(ships[i] && ships[i]->enem==this)
ships[i]->enem=NULL;
txt+=sprintf(txt,"Vessel successfully acquired");
mshp->ply->transfer(this);
}
}
else
{
if(frnd==mshp)
{
if(opr==-1)
{
txt+=sprintf(txt,"Hailing ship\n\n");
txt+=sprintf(txt,"Vessel is under your command\n\n[1] Transfer to this vessel");
}
if(opr==1)
{
try
{
mshp->transport(this);
mshp->ply->transfer(this);
txt+=sprintf(txt,"Transfer of command successful");
}
catch(error it)
{
try
{
transport(mshp);
mshp->ply->transfer(this);
}
catch(error iti)
{
throw it;
}
}
}
}
else
{
txt+=sprintf(txt,"Hailing ship\n\n");
txt+=sprintf(txt,"No reply");
}
}
break;
case CMOD_WHOIS:
if(ply)
{
txt+=sprintf(txt,"Player: %s\n",ply->nam);
txt+=sprintf(txt,"Alliance: %s\n",all->nam);
return spr;
}
else
txt+=sprintf(txt,"Target not player controlled\n");
break;
}
return -1;
}
int ship::freemass()
{
int out; //Outputted free space
out=mss;
for(int i=0;i<32;i++)
{
if(slots[i].item)
out-=slots[i].item->mss;
}
return out;
}
void ship::cloak()
{
if(clk && clk->rdy!=0)
{
clk->rdy=0;
server::registernoise(this,clk->item->snd);
}
}
void ship::uncloak()
{
if(clk && clk->rdy!=-1)
{
clk->rdy=-1;
if(clk->cap>0)
clk->cap=-clk->cap;
server::registernoise(this,clk->item->snd);
}
}
void ship::shieldsup()
{
if(shd)
shd->rdy=0;
}
void ship::shieldsdown()
{
if(shd)
shd->rdy=-1;
}
void ship::netout(int typ,unsigned char* buf)
{
buf[0]=typ;
buf+=1;
calc::inttodat(ship2pres(self),buf);
buf+=2;
switch(typ)
{
case SERV_SELF:
if(mss>0)
calc::inttodat((100*hul)/mhul,buf);
else
calc::inttodat(0,buf);
buf+=2;
if(pow && pow->cap>0)
calc::inttodat((100*pow->cap)/(pow->item->cap),buf);
else
calc::inttodat(0,buf);
buf+=2;
if(shd && shd->cap>0)
calc::inttodat((100*shd->cap)/(shd->item->cap),buf);
else
calc::inttodat(0,buf);
buf+=2;
if(ful && ful->cap>0)
calc::inttodat((100*ful->cap)/(ful->item->cap),buf);
else
calc::inttodat(0,buf);
buf+=2;
if(sens)
calc::longtodat(sens->item->rng,buf);
else
calc::longtodat(0,buf);
buf+=4;
calc::longtodat(LIMIT,buf);
buf+=4;
if(plnt)
{
calc::inttodat(planet2pres(plnt->self),buf);
}
else
{
if(enem)
calc::inttodat(ship2pres(enem->self),buf);
else
calc::inttodat(-1,buf);
}
buf+=2;
calc::inttodat(-1,buf);
buf+=2;
calc::inttodat(-1,buf);
break;
case SERV_NEW:
*buf=PT_SHIP;
buf+=1;
calc::inttodat(spr,buf);
buf+=2;
calc::inttodat(-1,buf);
buf+=2;
break;
case SERV_NAME:
sprintf((char*)buf,"%s",cls);
buf+=64;
sprintf((char*)buf,"%s",all->nam);
buf+=64;
break;
case SERV_UPD:
calc::longtodat(loc.x,buf);
buf+=4;
calc::longtodat(loc.y,buf);
buf+=4;
calc::longtodat(mov.xx,buf);
buf+=4;
calc::longtodat(mov.yy,buf);
buf+=4;
calc::inttodat(vel.ang,buf);
buf+=2;
*buf=0;
buf+=1;
if(clk && clk->item->cap)
{
if(clk->cap>=0)
*buf=100-((100*clk->cap)/clk->item->cap);
else
*buf=100+((100*clk->cap)/clk->item->cap);
}
else
*buf=100;
buf+=1;
break;
default:
break;
}
}
bool ship::colldetect(cord frgl,vect frgv)
{
int rot; //Target rotation
double x1,y1,x2,y2,xx,yy; //Target bounding box
rot=(int)(((vel.ang+5)/10))%36;
xx=(frgv.xx-mov.xx)/2;
yy=(frgv.yy-mov.yy)/2;
if(xx<0)
xx=-xx;
if(yy<0)
yy=-yy;
x1=loc.x-(w[rot]*3)/2-xx;
y1=loc.y-(h[rot]*3)/2-yy;
x2=loc.x+(w[rot]*3)/2+xx;
y2=loc.y+(h[rot]*3)/2+yy;
if(frgl.x>x1 && frgl.x<x2 && frgl.y>y1 && frgl.y<y2)
return true;
else
return false;
}
void ship::hit(int mag,cord frgl,vect frgv,ship* src)
{
cord tmpc;
vect tmpv; //Temporary for working out detonations
int rot; //Target rotation
int ndeb; //Number of debris bits
uncloak();
rot=(int)(((vel.ang+5)/10))%36;
if(shd)
shd->cap-=mag;
server::registershake(this,mag/100);
if(src && enem!=src && !(all->opposes(src->all)) && src->ply)
src->lynch();
if(shd && shd->cap>0)
{
try
{
new frag(frgl,frag::DEBRIS,shd->item->spr,-1,NULL,this,mov,calc::rnd(36),0,0,2);
}
catch(error it)
{
}
}
else
{
if(shd)
shd->cap=0;
frgl.x=(frgl.x+2*loc.x)/3;
frgl.y=(frgl.y+2*loc.y)/3;
for(int i=0;i<5;i++)
{
tmpv=mov;
frgl.x+=calc::rnd(2)-calc::rnd(2);
frgl.y+=calc::rnd(2)-calc::rnd(2);
tmpv.xx+=calc::rnd(2)-calc::rnd(2);
tmpv.yy+=calc::rnd(2)-calc::rnd(2);
try
{
new frag(frgl,frag::DEBRIS,frag::FIRE,-1,NULL,this,tmpv,calc::rnd(36),0,0,calc::rnd(5)+5);
}
catch(error it)
{
}
}
server::registernoise(this,fsnd);
}
if(shd && shd->cap!=-10)
hul-=(mag*4)/(shd->cap+10);
else
hul-=(mag*4)/10;
if(hul<=0)
{
hul=0;
ndeb=mss/8+4;
if(ndeb>70)
ndeb=70;
for(int i=0;i<ndeb;i++)
{
if(i==0 || calc::rnd(5)==0)
{
tmpc=loc;
tmpc.x+=calc::rnd(2*w[rot])-calc::rnd(2*w[rot]);
tmpc.y+=calc::rnd(2*h[rot])-calc::rnd(2*h[rot]);
}
tmpv=mov;
try