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Diffstat (limited to 'Stars45/DropShipAI.cpp')
-rw-r--r-- | Stars45/DropShipAI.cpp | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/Stars45/DropShipAI.cpp b/Stars45/DropShipAI.cpp new file mode 100644 index 0000000..e8356a5 --- /dev/null +++ b/Stars45/DropShipAI.cpp @@ -0,0 +1,146 @@ +/* Starshatter OpenSource Distribution + Copyright (c) 1997-2004, Destroyer Studios LLC. + All Rights Reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + * Neither the name "Destroyer Studios" nor the names of its contributors + may be used to endorse or promote products derived from this software + without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE + LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + POSSIBILITY OF SUCH DAMAGE. + + SUBSYSTEM: Stars.exe + FILE: DropShipAI.cpp + AUTHOR: John DiCamillo + + + OVERVIEW + ======== + Drop Ship (orbit/surface and surface/orbit) AI class +*/ + +#include "MemDebug.h" +#include "DropShipAI.h" +#include "TacticalAI.h" +#include "Ship.h" +#include "ShipCtrl.h" +#include "Drive.h" +#include "Sim.h" +#include "StarSystem.h" +#include "KeyMap.h" + +#include "Game.h" + +// +----------------------------------------------------------------------+ + +DropShipAI::DropShipAI(Ship* s) + : ShipAI(s) +{ + seek_gain = 20; + seek_damp = 0.5; + + delete tactical; + tactical = 0; +} + +DropShipAI::~DropShipAI() +{ +} + +// +--------------------------------------------------------------------+ + +void +DropShipAI::FindObjective() +{ + distance = 0; + + if (!ship) return; + + Sim* sim = Sim::GetSim(); + SimRegion* self_rgn = ship->GetRegion(); + + // if making orbit, go up: + if (self_rgn->Type() == Sim::AIR_SPACE) { + obj_w = self->Location() + Point(0, 1e3, 0); + } + + // if breaking orbit, head for terrain region: + else { + SimRegion* dst_rgn = sim->FindNearestTerrainRegion(ship); + Point dst = dst_rgn->GetOrbitalRegion()->Location() - + self_rgn->GetOrbitalRegion()->Location() + + Point(0, 0, -1e6); + + obj_w = dst.OtherHand(); + } + + // distance from self to navpt: + distance = Point(obj_w - self->Location()).length(); + + // transform into camera coords: + objective = Transform(obj_w); + objective.Normalize(); +} + +// +--------------------------------------------------------------------+ + +void +DropShipAI::Navigator() +{ + accumulator.Clear(); + magnitude = 0; + + if (other) + ship->SetFLCSMode(Ship::FLCS_AUTO); + else + ship->SetFLCSMode(Ship::FLCS_MANUAL); + + Accumulate(AvoidCollision()); + Accumulate(Seek(objective)); + + // are we being asked to flee? + if (fabs(accumulator.yaw) == 1.0 && accumulator.pitch == 0.0) { + accumulator.pitch = -0.7f; + accumulator.yaw *= 0.25f; + } + + self->ApplyRoll((float) (accumulator.yaw * -0.4)); + self->ApplyYaw((float) (accumulator.yaw * 0.2)); + + if (fabs(accumulator.yaw) > 0.5 && fabs(accumulator.pitch) < 0.1) + accumulator.pitch -= 0.1f; + + if (accumulator.pitch != 0) + self->ApplyPitch((float) accumulator.pitch); + + // if not turning, roll to orient with world coords: + if (fabs(accumulator.yaw) < 0.1) { + Point vrt = ((Camera*) &(self->Cam()))->vrt(); + double deflection = vrt.y; + if (deflection != 0) { + double theta = asin(deflection/vrt.length()); + self->ApplyRoll(-theta); + } + } + + ship->SetThrottle(100); + ship->ExecFLCSFrame(); +} + |