mirror of https://github.com/ZDoom/gzdoom-gles.git
127 lines
2.1 KiB
Plaintext
127 lines
2.1 KiB
Plaintext
class DoomBuilderCamera : Actor
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{
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States
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{
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Spawn:
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TNT1 A 1;
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Stop;
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}
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}
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class SecurityCamera : Actor
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{
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default
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{
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+NOBLOCKMAP
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+NOGRAVITY
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+DONTSPLASH
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RenderStyle "None";
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CameraHeight 0;
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}
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double Center;
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double Acc;
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double Delta;
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double Range;
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override void PostBeginPlay ()
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{
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Super.PostBeginPlay ();
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Center = Angle;
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if (args[2])
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Delta = 360. / (args[2] * TICRATE / 8);
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else
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Delta = 0.;
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if (args[1])
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Delta /= 2;
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Acc = 0.;
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Pitch = clamp(args[0], -89, 89);
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Range = args[1];
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}
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override void Tick ()
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{
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Acc += Delta;
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if (Range != 0)
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Angle = Center + Range * sin(Acc);
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else if (Delta != 0)
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Angle = Acc;
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}
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}
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class AimingCamera : SecurityCamera
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{
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double MaxPitchChange;
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override void PostBeginPlay ()
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{
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int changepitch = args[2];
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args[2] = 0;
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Super.PostBeginPlay ();
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MaxPitchChange = double(changepitch / TICRATE);
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Range /= TICRATE;
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ActorIterator it = ActorIterator.Create(args[3]);
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tracer = it.Next ();
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if (tracer == NULL)
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{
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//Printf ("AimingCamera %d: Can't find TID %d\n", tid, args[3]);
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}
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else
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{ // Don't try for a new target upon losing this one.
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args[3] = 0;
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}
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}
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override void Tick ()
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{
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if (tracer == NULL && args[3] != 0)
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{ // Recheck, in case something with this TID was created since the last time.
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ActorIterator it = ActorIterator.Create(args[3]);
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tracer = it.Next ();
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}
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if (tracer != NULL)
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{
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double dir = deltaangle(angle, AngleTo(tracer));
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double delta = abs(dir);
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if (delta > Range)
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{
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delta = Range;
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}
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if (dir > 0)
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{
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Angle += delta;
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}
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else
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{
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Angle -= delta;
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}
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if (MaxPitchChange != 0)
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{ // Aim camera's pitch; use floats for precision
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Vector2 vect = tracer.Vec2To(self);
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double dz = pos.z - tracer.pos.z - tracer.Height/2;
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double dist = vect.Length();
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double desiredPitch = dist != 0.f ? VectorAngle(dist, dz) : 0.;
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double diff = deltaangle(pitch, desiredPitch);
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if (abs (diff) < MaxPitchChange)
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{
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pitch = desiredPitch;
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}
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else if (diff < 0)
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{
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pitch -= MaxPitchChange;
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}
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else
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{
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pitch += MaxPitchChange;
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}
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}
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}
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}
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}
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