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/* Project Starshatter 4.5
Destroyer Studios LLC
Copyright © 1997-2004. All Rights Reserved.
SUBSYSTEM: Stars
FILE: ShipKiller.cpp
AUTHOR: John DiCamillo
OVERVIEW
========
ShipKiller class implementation
*/
#include "MemDebug.h"
#include "ShipKiller.h"
#include "Sim.h"
#include "Ship.h"
#include "ShipDesign.h"
#include "System.h"
#include "Weapon.h"
#include "Shot.h"
#include "Explosion.h"
#include "Debris.h"
#include "HUDSounds.h"
#include "Solid.h"
#include "Random.h"
// +----------------------------------------------------------------------+
ShipKiller::ShipKiller(Ship* s)
: ship(s), DEATH_CAM_LINGER(5.0f), time(0.0f), exp_time(0.0f), exp_index(0)
{
}
ShipKiller::~ShipKiller()
{
}
// +----------------------------------------------------------------------+
inline int random_index()
{
return (int) (rand()/3277);
}
// +----------------------------------------------------------------------+
void
ShipKiller::BeginDeathSpiral()
{
if (!ship) return;
// shut down all ship systems:
ListIter<System> iter = ship->Systems();
while (++iter) {
iter->PowerOff();
iter->SetPowerLevel(0);
if (iter->Type() == System::WEAPON) {
Weapon* gun = (Weapon*) iter.value();
for (int i = 0; i < Weapon::MAX_BARRELS; i++) {
Shot* beam = gun->GetBeam(i);
if (beam)
beam->Destroy();
}
}
}
if (ship->GetShieldRep())
ship->GetShieldRep()->Hide();
Sim* sim = Sim::GetSim();
const ShipDesign* design = ship->Design();
float time_to_go = design->death_spiral_time;
time = DEATH_CAM_LINGER + time_to_go;
loc = ship->Location() + ship->Velocity() * (time_to_go-1.0f);
if (rand() < 16000)
loc += ship->BeamLine() * -3 * ship->Radius();
else
loc += ship->BeamLine() * 3 * ship->Radius();
if (rand() < 8000)
loc += ship->LiftLine() * -1 * ship->Radius();
else
loc += ship->LiftLine() * 2 * ship->Radius();
// stop on crash:
if (ship->IsGroundUnit() || (ship->IsAirborne() && ship->AltitudeAGL() < ship->Radius()*2)) {
time = DEATH_CAM_LINGER;
loc = ship->Location() + Point(6*ship->Radius(), 7*ship->Radius(), 8*ship->Radius());
ship->SetVelocity(Point(0,0,0));
}
// else, slow tumble:
else {
Point torque = RandomVector(ship->Mass()/7);
ship->ApplyTorque(torque);
for (int i = 0; i < 5; i++) {
exp_index = random_index() % ShipDesign::MAX_EXPLOSIONS;
if (design->explosion[exp_index].type > 0 && !design->explosion[exp_index].final)
break;
}
float exp_scale = design->explosion_scale;
if (exp_scale <= 0)
exp_scale = design->scale;
exp_time = design->explosion[exp_index].time;
if (design->explosion[exp_index].type > 0) {
Point exp_loc = ship->Location() + (design->explosion[exp_index].loc * ship->Cam().Orientation());
sim->CreateExplosion(exp_loc,
ship->Velocity(),
design->explosion[exp_index].type,
(float) ship->Radius(),
exp_scale,
ship->GetRegion(),
ship);
}
}
ship->SetControls(0);
ship->SetupAgility();
}
// +----------------------------------------------------------------------+
void
ShipKiller::ExecFrame(double seconds)
{
Sim* sim = Sim::GetSim();
const ShipDesign* design = ship->Design();
time -= (float) seconds;
exp_time -= (float) seconds;
float exp_scale = design->explosion_scale;
if (exp_scale <= 0)
exp_scale = design->scale;
if (exp_time < 0) {
exp_index++;
if (exp_index >= ShipDesign::MAX_EXPLOSIONS || design->explosion[exp_index].final)
exp_index = 0;
exp_time = design->explosion[exp_index].time;
if (design->explosion[exp_index].type > 0) {
Point exp_loc = ship->Location() + (design->explosion[exp_index].loc * ship->Cam().Orientation());
sim->CreateExplosion(exp_loc,
ship->Velocity(),
design->explosion[exp_index].type,
(float) ship->Radius(),
exp_scale,
ship->GetRegion(),
ship);
}
}
if (time < DEATH_CAM_LINGER) {
for (int i = 0; i < ShipDesign::MAX_EXPLOSIONS; i++) {
if (design->explosion[i].final) {
Point exp_loc = ship->Location() + (design->explosion[i].loc * ship->Cam().Orientation());
sim->CreateExplosion(exp_loc,
ship->Velocity(),
design->explosion[i].type,
(float) ship->Radius(),
exp_scale,
ship->GetRegion());
}
}
for (int i = 0; i < ShipDesign::MAX_DEBRIS; i++) {
if (design->debris[i].model) {
Point debris_loc = ship->Location() + (design->debris[i].loc * ship->Cam().Orientation());
Point debris_vel = debris_loc - ship->Location();
debris_vel.Normalize();
if (design->debris[i].speed > 0)
debris_vel *= design->debris[i].speed;
else
debris_vel *= 200;
if (ship->IsGroundUnit()) {
debris_vel *= 2;
if (debris_vel.y < 0)
debris_vel.y *= -1;
}
for (int n = 0; n < design->debris[i].count; n++) {
Debris* debris = sim->CreateDebris(debris_loc,
debris_vel + ship->Velocity(),
design->debris[i].model,
design->debris[i].mass,
ship->GetRegion());
debris->SetLife(design->debris[i].life);
debris->SetDrag(design->debris[i].drag);
if (n == 0) {
debris->CloneCam(ship->Cam());
debris->MoveTo(debris_loc);
}
for (int fire = 0; fire < 5; fire++) {
if (design->debris[i].fire_loc[fire] == Vec3(0,0,0))
continue;
Point fire_loc = debris->Location() + (design->debris[i].fire_loc[fire] * debris->Cam().Orientation());
if (design->debris[i].fire_type > 0) {
sim->CreateExplosion(fire_loc,
ship->Velocity(),
design->debris[i].fire_type,
exp_scale,
exp_scale,
ship->GetRegion(),
debris);
}
else {
sim->CreateExplosion(fire_loc,
ship->Velocity(),
Explosion::SMALL_FIRE,
exp_scale,
exp_scale,
ship->GetRegion(),
debris);
sim->CreateExplosion(fire_loc,
ship->Velocity(),
Explosion::SMOKE_TRAIL,
exp_scale * 0.25f,
exp_scale * 0.25f,
ship->GetRegion(),
debris);
}
}
if (n+1 < design->debris[i].count) {
debris_vel = RandomVector(1);
if (design->debris[i].speed > 0)
debris_vel *= design->debris[i].speed * Random(0.8, 1.2);
else
debris_vel *= 300 + rand()/50;
}
}
}
}
if (ship == sim->GetPlayerShip())
HUDSounds::StopSound(HUDSounds::SND_RED_ALERT);
sim->CreateSplashDamage(ship);
ship->Destroy(); // CAREFUL!!! This will also delete this object!
}
}
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