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-rw-r--r--Stars45/SeekerAI.cpp314
1 files changed, 157 insertions, 157 deletions
diff --git a/Stars45/SeekerAI.cpp b/Stars45/SeekerAI.cpp
index c57219c..86e027f 100644
--- a/Stars45/SeekerAI.cpp
+++ b/Stars45/SeekerAI.cpp
@@ -1,15 +1,15 @@
/* Project Starshatter 4.5
- Destroyer Studios LLC
- Copyright © 1997-2004. All Rights Reserved.
+ Destroyer Studios LLC
+ Copyright © 1997-2004. All Rights Reserved.
- SUBSYSTEM: Stars.exe
- FILE: SeekerAI.cpp
- AUTHOR: John DiCamillo
+ SUBSYSTEM: Stars.exe
+ FILE: SeekerAI.cpp
+ AUTHOR: John DiCamillo
- OVERVIEW
- ========
- Seeker Missile (low-level) Artificial Intelligence class
+ OVERVIEW
+ ========
+ Seeker Missile (low-level) Artificial Intelligence class
*/
#include "MemDebug.h"
@@ -24,13 +24,13 @@
// +----------------------------------------------------------------------+
SeekerAI::SeekerAI(SimObject* s)
- : SteerAI(s), shot((Shot*) s), orig_target(0),
- pursuit(1), delay(0), overshot(false)
+: SteerAI(s), shot((Shot*) s), orig_target(0),
+pursuit(1), delay(0), overshot(false)
{
- ai_type = SEEKER;
+ ai_type = SEEKER;
- seek_gain = 25;
- seek_damp = 0.55;
+ seek_gain = 25;
+ seek_damp = 0.55;
}
@@ -38,10 +38,10 @@ SeekerAI::SeekerAI(SimObject* s)
SeekerAI::~SeekerAI()
{
- if (shot) {
- if (shot->Owner())
- ((Ship*) shot->Owner())->SetMissileEta(shot->Identity(), 0);
- }
+ if (shot) {
+ if (shot->Owner())
+ ((Ship*) shot->Owner())->SetMissileEta(shot->Identity(), 0);
+ }
}
// +--------------------------------------------------------------------+
@@ -49,11 +49,11 @@ SeekerAI::~SeekerAI()
void
SeekerAI::ExecFrame(double seconds)
{
- // setup:
- FindObjective();
+ // setup:
+ FindObjective();
- // adaptive behavior:
- Navigator();
+ // adaptive behavior:
+ Navigator();
}
// +--------------------------------------------------------------------+
@@ -61,116 +61,116 @@ SeekerAI::ExecFrame(double seconds)
void
SeekerAI::Navigator()
{
- if (delay > 0) {
- delay -= Game::FrameTime();
- }
- else {
- Steer s = SeekTarget();
- self->ApplyYaw((float) s.yaw);
- self->ApplyPitch((float) s.pitch);
- }
+ if (delay > 0) {
+ delay -= Game::FrameTime();
+ }
+ else {
+ Steer s = SeekTarget();
+ self->ApplyYaw((float) s.yaw);
+ self->ApplyPitch((float) s.pitch);
+ }
}
void
SeekerAI::SetTarget(SimObject* targ, System* sub)
{
- if (!orig_target && targ && targ->Type() == SimObject::SIM_SHIP) {
- orig_target = (Ship*) targ;
- Observe(orig_target);
- }
+ if (!orig_target && targ && targ->Type() == SimObject::SIM_SHIP) {
+ orig_target = (Ship*) targ;
+ Observe(orig_target);
+ }
- SteerAI::SetTarget(targ, sub);
+ SteerAI::SetTarget(targ, sub);
- if (!target) {
- shot->SetEta(0);
+ if (!target) {
+ shot->SetEta(0);
- if (shot->Owner())
- ((Ship*) shot->Owner())->SetMissileEta(shot->Identity(), 0);
- }
+ if (shot->Owner())
+ ((Ship*) shot->Owner())->SetMissileEta(shot->Identity(), 0);
+ }
}
void
SeekerAI::FindObjective()
{
- if (!shot || !target) return;
-
- if (target->Life() == 0) {
- if (target != orig_target)
- SetTarget(orig_target,0);
- else
- SetTarget(0,0);
-
- return;
- }
-
- Point tloc = target->Location();
- tloc = Transform(tloc);
-
- // seeker head limit of 45 degrees:
- if (tloc.z < 0 || tloc.z < fabs(tloc.x) || tloc.z < fabs(tloc.y)) {
- overshot = true;
- SetTarget(0,0);
- return;
- }
-
- // distance from self to target:
- distance = Point(target->Location() - self->Location()).length();
-
- // are we being spoofed?
- CheckDecoys(distance);
-
- Point cv = ClosingVelocity();
-
- // time to reach target:
- double time = distance / cv.length();
- double predict = time;
- if (predict > 15)
- predict = 15;
-
- // pure pursuit:
- if (pursuit == 1 || time < 0.1) {
- obj_w = target->Location();
- }
-
- // lead pursuit:
- else {
- // where the target will be when we reach it:
- Point run_vec = target->Velocity();
- obj_w = target->Location() + (run_vec * predict);
- }
-
- // subsystem offset:
- if (subtarget) {
- Point offset = target->Location() - subtarget->MountLocation();
- obj_w -= offset;
- }
- else if (target->Type() == SimObject::SIM_SHIP) {
- Ship* tgt_ship = (Ship*) target;
-
- if (tgt_ship->IsGroundUnit())
- obj_w += Point(0,150,0);
- }
-
-
- distance = Point(obj_w - self->Location()).length();
- time = distance / cv.length();
-
- // where we will be when the target gets there:
- if (predict > 0.1 && predict < 15) {
- Point self_dest = self->Location() + cv * predict;
- Point err = obj_w - self_dest;
-
- obj_w += err;
- }
-
- // transform into camera coords:
- objective = Transform(obj_w);
- objective.Normalize();
-
- shot->SetEta((int) time);
-
- if (shot->Owner())
- ((Ship*) shot->Owner())->SetMissileEta(shot->Identity(), (int) time);
+ if (!shot || !target) return;
+
+ if (target->Life() == 0) {
+ if (target != orig_target)
+ SetTarget(orig_target,0);
+ else
+ SetTarget(0,0);
+
+ return;
+ }
+
+ Point tloc = target->Location();
+ tloc = Transform(tloc);
+
+ // seeker head limit of 45 degrees:
+ if (tloc.z < 0 || tloc.z < fabs(tloc.x) || tloc.z < fabs(tloc.y)) {
+ overshot = true;
+ SetTarget(0,0);
+ return;
+ }
+
+ // distance from self to target:
+ distance = Point(target->Location() - self->Location()).length();
+
+ // are we being spoofed?
+ CheckDecoys(distance);
+
+ Point cv = ClosingVelocity();
+
+ // time to reach target:
+ double time = distance / cv.length();
+ double predict = time;
+ if (predict > 15)
+ predict = 15;
+
+ // pure pursuit:
+ if (pursuit == 1 || time < 0.1) {
+ obj_w = target->Location();
+ }
+
+ // lead pursuit:
+ else {
+ // where the target will be when we reach it:
+ Point run_vec = target->Velocity();
+ obj_w = target->Location() + (run_vec * predict);
+ }
+
+ // subsystem offset:
+ if (subtarget) {
+ Point offset = target->Location() - subtarget->MountLocation();
+ obj_w -= offset;
+ }
+ else if (target->Type() == SimObject::SIM_SHIP) {
+ Ship* tgt_ship = (Ship*) target;
+
+ if (tgt_ship->IsGroundUnit())
+ obj_w += Point(0,150,0);
+ }
+
+
+ distance = Point(obj_w - self->Location()).length();
+ time = distance / cv.length();
+
+ // where we will be when the target gets there:
+ if (predict > 0.1 && predict < 15) {
+ Point self_dest = self->Location() + cv * predict;
+ Point err = obj_w - self_dest;
+
+ obj_w += err;
+ }
+
+ // transform into camera coords:
+ objective = Transform(obj_w);
+ objective.Normalize();
+
+ shot->SetEta((int) time);
+
+ if (shot->Owner())
+ ((Ship*) shot->Owner())->SetMissileEta(shot->Identity(), (int) time);
}
// +--------------------------------------------------------------------+
@@ -178,30 +178,30 @@ SeekerAI::FindObjective()
void
SeekerAI::CheckDecoys(double target_distance)
{
- // if the assigned target has the burner lit,
- // ignore the decoys:
- if (orig_target && orig_target->Augmenter()) {
- SetTarget(orig_target);
- return;
- }
-
- if (target &&
- target == orig_target &&
- orig_target->GetActiveDecoys().size()) {
-
- ListIter<Shot> decoy = orig_target->GetActiveDecoys();
-
- while (++decoy) {
- double decoy_distance = Point(decoy->Location() - self->Location()).length();
-
- if (decoy_distance < target_distance) {
- if (rand() < 1600) {
- SetTarget(decoy.value(), 0);
- return;
- }
- }
- }
- }
+ // if the assigned target has the burner lit,
+ // ignore the decoys:
+ if (orig_target && orig_target->Augmenter()) {
+ SetTarget(orig_target);
+ return;
+ }
+
+ if (target &&
+ target == orig_target &&
+ orig_target->GetActiveDecoys().size()) {
+
+ ListIter<Shot> decoy = orig_target->GetActiveDecoys();
+
+ while (++decoy) {
+ double decoy_distance = Point(decoy->Location() - self->Location()).length();
+
+ if (decoy_distance < target_distance) {
+ if (rand() < 1600) {
+ SetTarget(decoy.value(), 0);
+ return;
+ }
+ }
+ }
+ }
}
// +--------------------------------------------------------------------+
@@ -209,7 +209,7 @@ SeekerAI::CheckDecoys(double target_distance)
bool
SeekerAI::Overshot()
{
- return overshot;
+ return overshot;
}
// +--------------------------------------------------------------------+
@@ -217,7 +217,7 @@ SeekerAI::Overshot()
Steer
SeekerAI::AvoidCollision()
{
- return Steer();
+ return Steer();
}
// +--------------------------------------------------------------------+
@@ -225,10 +225,10 @@ SeekerAI::AvoidCollision()
Steer
SeekerAI::SeekTarget()
{
- if (!self || !target || Overshot())
- return Steer();
+ if (!self || !target || Overshot())
+ return Steer();
- return Seek(objective);
+ return Seek(objective);
}
// +--------------------------------------------------------------------+
@@ -236,22 +236,22 @@ SeekerAI::SeekTarget()
bool
SeekerAI::Update(SimObject* obj)
{
- if (obj == target) {
- if (obj->Type() == SimObject::SIM_SHOT && orig_target != 0)
- target = orig_target;
- }
+ if (obj == target) {
+ if (obj->Type() == SimObject::SIM_SHOT && orig_target != 0)
+ target = orig_target;
+ }
- if (obj == orig_target)
- orig_target = 0;
+ if (obj == orig_target)
+ orig_target = 0;
- return SteerAI::Update(obj);
+ return SteerAI::Update(obj);
}
const char*
SeekerAI::GetObserverName() const
{
- static char name[64];
- sprintf(name, "SeekerAI(%s)", self->Name());
- return name;
+ static char name[64];
+ sprintf(name, "SeekerAI(%s)", self->Name());
+ return name;
}
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