Adds Flight Controls (partially addresses #15)

.gitignore

@@ -2,6 +2,7 @@ bazel-*
 
 # KSP2
 lib/ksp2
+*.log
 
 # Visual Studio
 .vs/

service/spacecenter/src/Control.cs

@@ -0,0 +1,233 @@
+using System;
+using KSP.Sim.impl;
+using KSP.Sim.State;
+
+using KRPC.Service;
+using KRPC.Service.Attributes;
+using KRPC.Utils;
+
+// NOTE: This is basically just a reimplementation of KSP.Sim.impl/VesselVehicle with KRPC
+// bindings. Implemented for consistency with krpc1. Also note that SpaceWarp
+// VesselVehicleExtensions also provides something similar.
+namespace KRPC2.SpaceCenter
+{
+    /// <summary>
+    /// Used to manipulate the controls of a vessel. This includes adjusting the
+    /// throttle, enabling/disabling systems such as SAS and RCS, or altering the
+    /// direction in which the vessel is pointing.
+    /// Obtained by calling <see cref="Vessel.Control"/>.
+    /// </summary>
+    /// <remarks>
+    /// Control inputs (such as pitch, yaw and roll) are instantaneous (the same
+    /// as tapping a button)
+    /// </remarks>
+    [KRPCClass(Service = "SpaceCenter2", GameScene = GameScene.Flight)]
+    public class Control : Equatable<Control>
+    {
+        readonly Guid vesselId;
+
+        internal Control(VesselComponent vessel)
+        {
+            // TODO: Don't hold on to vessel, object. Instead lookup from scope
+            // by ID. See the setter for this property.
+            InternalVessel = vessel;
+            vesselId = vessel.GlobalId;
+        }
+
+        /// <summary>
+        /// Returns true if the vesselIds are equal.
+        /// </summary>
+        public override bool Equals(Control other)
+        {
+            return !ReferenceEquals(other, null) && vesselId == other.vesselId;
+        }
+
+        /// <summary>
+        /// Hash code for the object.
+        /// </summary>
+        public override int GetHashCode()
+        {
+            return vesselId.GetHashCode();
+        }
+
+        /// <summary>
+        /// The KSP vessel object.
+        /// </summary>
+        public VesselComponent InternalVessel { get; private set; }
+
+        private void AtomicSet(FlightCtrlStateIncremental flightControlUpdate)
+        {
+            InternalVessel.ApplyFlightCtrlState(flightControlUpdate);
+        }
+
+        /// <summary>
+        /// The state of the throttle. A value between 0 and 1.
+        /// </summary>
+        [KRPCProperty]
+        public float Throttle
+        {
+            get
+            {
+                return InternalVessel.flightCtrlState.mainThrottle;
+            }
+            set
+            {
+                var incremental = new FlightCtrlStateIncremental()
+                {
+                    mainThrottle = value
+                };
+                AtomicSet(incremental);
+            }
+        }
+
+        /// <summary>
+        /// Instantaneous change to the roll control, and current roll state. A value between -1 and 1.
+        /// </summary>
+        /// <remarks>
+        /// Reading this value provides the instantaneous roll control value.
+        /// Setting this value is the same as tapping q/e in stock KSP2.
+        /// The roll experienced by the vehicle will be RollTrim + Roll. KSP
+        /// will internally clamp this value between -1 and 1.
+        /// </remarks>
+        [KRPCProperty]
+        public float Roll
+        {
+            get
+            {
+                return InternalVessel.flightCtrlState.roll;
+            }
+            set
+            {
+                var incremental = new FlightCtrlStateIncremental()
+                {
+                    roll = value
+                };
+                AtomicSet(incremental);
+            }
+        }
+
+        /// <summary>
+        /// Instantaneous change to the yaw control, and current yaw state. A value between -1 and 1.
+        /// </summary>
+        /// <remarks>
+        /// Reading this value provides the instantaneous yaw control value.
+        /// Setting this value is the same as tapping a/d in stock KSP2.
+        /// The yaw experienced by the vehicle will be YawTrim + Yaw. KSP
+        /// will internally clamp this value between -1 and 1.
+        /// </remarks>
+        [KRPCProperty]
+        public float Yaw
+        {
+            get
+            {
+                return InternalVessel.flightCtrlState.yaw;
+            }
+            set
+            {
+                var incremental = new FlightCtrlStateIncremental()
+                {
+                    yaw = value
+                };
+                AtomicSet(incremental);
+            }
+        }
+
+        /// <summary>
+        /// Instantaneous change to the pitch control, and current pitch state. A value between -1 and 1.
+        /// </summary>
+        /// <remarks>
+        /// Reading this value provides the instantaneous pitch control value.
+        /// Setting this value is the same as tapping w/s in stock KSP2.
+        /// The pitch experienced by the vehicle will be PitchTrim + Pitch. KSP
+        /// will internally clamp this value between -1 and 1.
+        /// </remarks>
+        [KRPCProperty]
+        public float Pitch
+        {
+            get
+            {
+                return InternalVessel.flightCtrlState.pitch;
+            }
+            set
+            {
+                var incremental = new FlightCtrlStateIncremental()
+                {
+                    pitch = value
+                };
+                AtomicSet(incremental);
+            }
+        }
+
+        /// <summary>
+        /// The state of the roll trim control. A value between -1 and 1.
+        /// </summary>
+        /// <remarks>
+        /// This will set the roll control to have this value as a baseline.
+        /// For an instantaneous roll change, see <see cref="Roll"/>.
+        /// </remarks>
+        [KRPCProperty]
+        public float RollTrim
+        {
+            get
+            {
+                return InternalVessel.flightCtrlState.rollTrim;
+            }
+            set
+            {
+                var incremental = new FlightCtrlStateIncremental()
+                {
+                    rollTrim = value
+                };
+                AtomicSet(incremental);
+            }
+        }
+
+        /// <summary>
+        /// The state of the yaw trim control. A value between -1 and 1.
+        /// </summary>
+        /// <remarks>
+        /// This will set the yaw control to have this value as a baseline.
+        /// For an instantaneous yaw change, see <see cref="Yaw"/>.
+        /// </remarks>
+        [KRPCProperty]
+        public float YawTrim
+        {
+            get
+            {
+                return InternalVessel.flightCtrlState.yawTrim;
+            }
+            set
+            {
+                var incremental = new FlightCtrlStateIncremental()
+                {
+                    yawTrim = value
+                };
+                AtomicSet(incremental);
+            }
+        }
+
+        /// <summary>
+        /// The state of the pitch trim control. A value between -1 and 1.
+        /// </summary>
+        /// <remarks>
+        /// This will set the pitch control to have this value as a baseline.
+        /// For an instantaneous pitch change, see <see cref="Pitch"/>.
+        /// </remarks>
+        [KRPCProperty]
+        public float PitchTrim
+        {
+            get
+            {
+                return InternalVessel.flightCtrlState.pitchTrim;
+            }
+            set
+            {
+                var incremental = new FlightCtrlStateIncremental()
+                {
+                    pitchTrim = value
+                };
+                AtomicSet(incremental);
+            }
+        }
+    }
+}

service/spacecenter/src/Vessel.cs

@@ -1,5 +1,6 @@
 using System;
 using KSP.Sim.impl;
+using KRPC.Service;
 using KRPC.Service.Attributes;
 using KRPC.Utils;
 
@@ -59,5 +60,16 @@ public Orbit Orbit
         {
             get { return new Orbit(InternalVessel); }
         }
+
+        /// <summary>
+        /// Returns a <see cref="Control"/> object that can be used to manipulate
+        /// the vessel's control inputs. For example, its pitch/yaw/roll controls,
+        /// RCS and thrust.
+        /// </summary>
+        [KRPCProperty(GameScene = GameScene.Flight)]
+        public Control Control
+        {
+            get { return new Control(InternalVessel); }
+        }
     }
 }

tools/install.sh

@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 
 set -ev
-bazel build --verbose_failures //:krpc2
+bazel build --verbose_failures //:plugin_files
 rm -rf lib/ksp2/BepInEx/plugins/kRPC2
 rm -f lib/ksp2/BepInEx/config/krpc2.cfg