663 lines
22 KiB
C#
663 lines
22 KiB
C#
using Barotrauma.Networking;
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using FarseerPhysics;
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using Microsoft.Xna.Framework;
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using Microsoft.Xna.Framework.Graphics;
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.Linq;
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using System.Text;
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using System.Xml.Linq;
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using Voronoi2;
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namespace Barotrauma.Items.Components
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{
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class Steering : Powered, IServerSerializable, IClientSerializable
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{
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private const float AutopilotRayCastInterval = 0.5f;
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private Vector2 currVelocity;
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private Vector2 targetVelocity;
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private GUITickBox autopilotTickBox, maintainPosTickBox;
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private GUITickBox levelEndTickBox, levelStartTickBox;
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private bool autoPilot;
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private Vector2? posToMaintain;
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private SteeringPath steeringPath;
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private PathFinder pathFinder;
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private float networkUpdateTimer;
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private bool unsentChanges;
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private float autopilotRayCastTimer;
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private Vector2 avoidStrength;
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private float neutralBallastLevel;
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public bool AutoPilot
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{
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get { return autoPilot; }
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set
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{
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if (value == autoPilot) return;
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autoPilot = value;
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autopilotTickBox.Selected = value;
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maintainPosTickBox.Enabled = autoPilot;
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levelEndTickBox.Enabled = autoPilot;
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levelStartTickBox.Enabled = autoPilot;
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if (autoPilot)
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{
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if (pathFinder == null) pathFinder = new PathFinder(WayPoint.WayPointList, false);
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ToggleMaintainPosition(maintainPosTickBox);
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}
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else
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{
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maintainPosTickBox.Selected = false;
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levelEndTickBox.Selected = false;
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levelStartTickBox.Selected = false;
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posToMaintain = null;
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}
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}
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}
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public bool MaintainPos
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{
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get { return maintainPosTickBox.Selected; }
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set { maintainPosTickBox.Selected = value; }
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}
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[Editable, HasDefaultValue(0.5f, true)]
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public float NeutralBallastLevel
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{
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get { return neutralBallastLevel; }
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set
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{
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neutralBallastLevel = MathHelper.Clamp(value, 0.0f, 1.0f);
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}
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}
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public Vector2 TargetVelocity
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{
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get { return targetVelocity;}
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set
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{
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if (!MathUtils.IsValid(value)) return;
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targetVelocity.X = MathHelper.Clamp(value.X, -100.0f, 100.0f);
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targetVelocity.Y = MathHelper.Clamp(value.Y, -100.0f, 100.0f);
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}
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}
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public SteeringPath SteeringPath
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{
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get { return steeringPath; }
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}
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public Steering(Item item, XElement element)
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: base(item, element)
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{
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IsActive = true;
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autopilotTickBox = new GUITickBox(new Rectangle(0,25,20,20), "Autopilot", Alignment.TopLeft, GuiFrame);
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autopilotTickBox.OnSelected = (GUITickBox box) =>
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{
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AutoPilot = box.Selected;
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unsentChanges = true;
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return true;
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};
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maintainPosTickBox = new GUITickBox(new Rectangle(5, 50, 15, 15), "Maintain position", Alignment.TopLeft, GUI.SmallFont, GuiFrame);
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maintainPosTickBox.Enabled = false;
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maintainPosTickBox.OnSelected = ToggleMaintainPosition;
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levelStartTickBox = new GUITickBox(
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new Rectangle(5, 70, 15, 15),
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GameMain.GameSession == null ? "" : ToolBox.LimitString(GameMain.GameSession.StartLocation.Name, 20),
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Alignment.TopLeft, GUI.SmallFont, GuiFrame);
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levelStartTickBox.Enabled = false;
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levelStartTickBox.OnSelected = SelectDestination;
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levelEndTickBox = new GUITickBox(
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new Rectangle(5, 90, 15, 15),
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GameMain.GameSession == null ? "" : ToolBox.LimitString(GameMain.GameSession.EndLocation.Name, 20),
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Alignment.TopLeft, GUI.SmallFont, GuiFrame);
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levelEndTickBox.Enabled = false;
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levelEndTickBox.OnSelected = SelectDestination;
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}
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public override void Update(float deltaTime, Camera cam)
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{
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if (unsentChanges)
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{
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networkUpdateTimer -= deltaTime;
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if (networkUpdateTimer <= 0.0f)
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{
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if (GameMain.Client != null)
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{
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item.CreateClientEvent(this);
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correctionTimer = CorrectionDelay;
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}
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else if (GameMain.Server != null)
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{
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item.CreateServerEvent(this);
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}
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networkUpdateTimer = 0.5f;
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unsentChanges = false;
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}
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}
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if (voltage < minVoltage && powerConsumption > 0.0f) return;
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if (autoPilot)
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{
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UpdateAutoPilot(deltaTime);
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}
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item.SendSignal(0, targetVelocity.X.ToString(CultureInfo.InvariantCulture), "velocity_x_out", null);
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float targetLevel = -targetVelocity.Y;
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targetLevel += (neutralBallastLevel - 0.5f) * 100.0f;
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item.SendSignal(0, targetLevel.ToString(CultureInfo.InvariantCulture), "velocity_y_out", null);
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voltage -= deltaTime;
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}
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public override void DrawHUD(SpriteBatch spriteBatch, Character character)
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{
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//if (voltage < minVoltage) return;
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int width = GuiFrame.Rect.Width, height = GuiFrame.Rect.Height;
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int x = GuiFrame.Rect.X;
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int y = GuiFrame.Rect.Y;
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GuiFrame.Draw(spriteBatch);
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if (voltage < minVoltage && powerConsumption > 0.0f) return;
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Rectangle velRect = new Rectangle(x + 20, y + 20, width - 40, height - 40);
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//GUI.DrawRectangle(spriteBatch, velRect, Color.White, false);
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if (item.Submarine != null && Level.Loaded != null)
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{
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Vector2 realWorldVelocity = ConvertUnits.ToDisplayUnits(item.Submarine.Velocity * Physics.DisplayToRealWorldRatio) * 3.6f;
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float realWorldDepth = Math.Abs(item.Submarine.Position.Y - Level.Loaded.Size.Y) * Physics.DisplayToRealWorldRatio;
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GUI.DrawString(spriteBatch, new Vector2(x + 20, y + height - 65),
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"Velocity: " + (int)realWorldVelocity.X + " km/h", Color.LightGreen, null, 0, GUI.SmallFont);
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GUI.DrawString(spriteBatch, new Vector2(x + 20, y + height - 50),
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"Descent velocity: " + -(int)realWorldVelocity.Y + " km/h", Color.LightGreen, null, 0, GUI.SmallFont);
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GUI.DrawString(spriteBatch, new Vector2(x + 20, y + height - 30),
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"Depth: " + (int)realWorldDepth + " m", Color.LightGreen, null, 0, GUI.SmallFont);
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}
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GUI.DrawLine(spriteBatch,
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new Vector2(velRect.Center.X,velRect.Center.Y),
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new Vector2(velRect.Center.X + currVelocity.X, velRect.Center.Y - currVelocity.Y),
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Color.Gray);
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Vector2 targetVelPos = new Vector2(velRect.Center.X + targetVelocity.X, velRect.Center.Y - targetVelocity.Y);
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GUI.DrawLine(spriteBatch,
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new Vector2(velRect.Center.X, velRect.Center.Y),
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targetVelPos,
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Color.LightGray);
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GUI.DrawRectangle(spriteBatch, new Rectangle((int)targetVelPos.X - 5, (int)targetVelPos.Y - 5, 10, 10), Color.White);
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if (Vector2.Distance(PlayerInput.MousePosition, new Vector2(velRect.Center.X, velRect.Center.Y)) < 200.0f)
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{
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GUI.DrawRectangle(spriteBatch, new Rectangle((int)targetVelPos.X -10, (int)targetVelPos.Y - 10, 20, 20), Color.Red);
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}
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}
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public override void AddToGUIUpdateList()
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{
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GuiFrame.AddToGUIUpdateList();
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}
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public override void UpdateHUD(Character character)
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{
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GuiFrame.Update(1.0f / 60.0f);
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if (Vector2.Distance(PlayerInput.MousePosition, new Vector2(GuiFrame.Rect.Center.X, GuiFrame.Rect.Center.Y)) < 200.0f)
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{
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if (PlayerInput.LeftButtonHeld())
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{
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TargetVelocity = PlayerInput.MousePosition - new Vector2(GuiFrame.Rect.Center.X, GuiFrame.Rect.Center.Y);
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targetVelocity.Y = -targetVelocity.Y;
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unsentChanges = true;
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}
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}
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}
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private void UpdateAutoPilot(float deltaTime)
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{
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if (posToMaintain != null)
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{
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SteerTowardsPosition((Vector2)posToMaintain);
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return;
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}
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autopilotRayCastTimer -= deltaTime;
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steeringPath.CheckProgress(ConvertUnits.ToSimUnits(item.Submarine.WorldPosition), 10.0f);
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if (autopilotRayCastTimer <= 0.0f && steeringPath.NextNode != null)
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{
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Vector2 diff = Vector2.Normalize(ConvertUnits.ToSimUnits(steeringPath.NextNode.Position - item.Submarine.WorldPosition));
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bool nextVisible = true;
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for (int x = -1; x < 2; x += 2)
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{
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for (int y = -1; y < 2; y += 2)
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{
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Vector2 cornerPos =
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new Vector2(item.Submarine.Borders.Width * x, item.Submarine.Borders.Height * y) / 2.0f;
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cornerPos = ConvertUnits.ToSimUnits(cornerPos * 1.2f + item.Submarine.WorldPosition);
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float dist = Vector2.Distance(cornerPos, steeringPath.NextNode.SimPosition);
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if (Submarine.PickBody(cornerPos, cornerPos + diff * dist, null, Physics.CollisionLevel) == null) continue;
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nextVisible = false;
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x = 2;
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y = 2;
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}
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}
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if (nextVisible) steeringPath.SkipToNextNode();
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autopilotRayCastTimer = AutopilotRayCastInterval;
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}
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if (steeringPath.CurrentNode != null)
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{
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SteerTowardsPosition(steeringPath.CurrentNode.WorldPosition);
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}
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float avoidRadius = Math.Max(item.Submarine.Borders.Width, item.Submarine.Borders.Height) * 2.0f;
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avoidRadius = Math.Max(avoidRadius, 2000.0f);
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Vector2 newAvoidStrength = Vector2.Zero;
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//steer away from nearby walls
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var closeCells = Level.Loaded.GetCells(item.Submarine.WorldPosition, 4);
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foreach (VoronoiCell cell in closeCells)
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{
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foreach (GraphEdge edge in cell.edges)
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{
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var intersection = MathUtils.GetLineIntersection(edge.point1, edge.point2, item.Submarine.WorldPosition, cell.Center);
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if (intersection != null)
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{
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Vector2 diff = item.Submarine.WorldPosition - (Vector2)intersection;
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//far enough -> ignore
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if (diff.Length() > avoidRadius) continue;
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float dot = item.Submarine.Velocity == Vector2.Zero ?
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0.0f : Vector2.Dot(item.Submarine.Velocity, -Vector2.Normalize(diff));
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//not heading towards the wall -> ignore
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if (dot < 0.5) continue;
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Vector2 change = (Vector2.Normalize(diff) * Math.Max((avoidRadius - diff.Length()), 0.0f)) / avoidRadius;
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newAvoidStrength += change * dot;
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}
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}
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}
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avoidStrength = Vector2.Lerp(avoidStrength, newAvoidStrength, deltaTime * 10.0f);
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targetVelocity += avoidStrength * 100.0f;
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//steer away from other subs
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foreach (Submarine sub in Submarine.Loaded)
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{
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if (sub == item.Submarine) continue;
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if (item.Submarine.DockedTo.Contains(sub)) continue;
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float thisSize = Math.Max(item.Submarine.Borders.Width, item.Submarine.Borders.Height);
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float otherSize = Math.Max(sub.Borders.Width, sub.Borders.Height);
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Vector2 diff = item.Submarine.WorldPosition - sub.WorldPosition;
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float dist = diff == Vector2.Zero ? 0.0f : diff.Length();
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//far enough -> ignore
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if (dist > thisSize + otherSize) continue;
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diff = Vector2.Normalize(diff);
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float dot = item.Submarine.Velocity == Vector2.Zero ?
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0.0f : Vector2.Dot(Vector2.Normalize(item.Submarine.Velocity), -Vector2.Normalize(diff));
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//heading away -> ignore
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if (dot < 0.0f) continue;
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targetVelocity += diff * 200.0f;
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}
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//clamp velocity magnitude to 100.0f
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float velMagnitude = targetVelocity.Length();
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if (velMagnitude > 100.0f)
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{
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targetVelocity *= 100.0f / velMagnitude;
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}
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}
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private void UpdatePath()
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{
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if (pathFinder == null) pathFinder = new PathFinder(WayPoint.WayPointList, false);
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Vector2 target;
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if (levelEndTickBox.Selected)
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{
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target = ConvertUnits.ToSimUnits(Level.Loaded.EndPosition);
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}
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else
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{
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target = ConvertUnits.ToSimUnits(Level.Loaded.StartPosition);
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}
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steeringPath = pathFinder.FindPath(ConvertUnits.ToSimUnits(item.WorldPosition), target);
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}
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private void SteerTowardsPosition(Vector2 worldPosition)
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{
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float prediction = 10.0f;
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Vector2 futurePosition = ConvertUnits.ToDisplayUnits(item.Submarine.Velocity) * prediction;
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Vector2 targetSpeed = ((worldPosition - item.Submarine.WorldPosition) - futurePosition);
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if (targetSpeed.Length()>500.0f)
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{
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targetSpeed = Vector2.Normalize(targetSpeed);
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TargetVelocity = targetSpeed * 100.0f;
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}
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else
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{
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TargetVelocity = targetSpeed / 5.0f;
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}
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}
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private bool ToggleMaintainPosition(GUITickBox tickBox)
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{
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unsentChanges = true;
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levelStartTickBox.Selected = false;
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levelEndTickBox.Selected = false;
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if (item.Submarine == null)
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{
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posToMaintain = null;
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}
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else
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{
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posToMaintain = item.Submarine.WorldPosition;
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}
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tickBox.Selected = true;
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return true;
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}
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public void SetDestinationLevelStart()
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{
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AutoPilot = true;
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MaintainPos = false;
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posToMaintain = null;
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levelEndTickBox.Selected = false;
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if (!levelStartTickBox.Selected)
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{
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levelStartTickBox.Selected = true;
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UpdatePath();
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}
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}
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public void SetDestinationLevelEnd()
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{
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AutoPilot = false;
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MaintainPos = false;
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posToMaintain = null;
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levelStartTickBox.Selected = false;
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if (!levelEndTickBox.Selected)
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{
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levelEndTickBox.Selected = true;
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UpdatePath();
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}
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}
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private bool SelectDestination(GUITickBox tickBox)
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{
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unsentChanges = true;
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if (tickBox == levelStartTickBox)
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{
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levelEndTickBox.Selected = false;
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}
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else
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{
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levelStartTickBox.Selected = false;
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}
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maintainPosTickBox.Selected = false;
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posToMaintain = null;
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tickBox.Selected = true;
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UpdatePath();
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return true;
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}
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public override void ReceiveSignal(int stepsTaken, string signal, Connection connection, Item source, Character sender, float power=0.0f)
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{
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if (connection.Name == "velocity_in")
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{
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currVelocity = ToolBox.ParseToVector2(signal, false);
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}
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else
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{
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base.ReceiveSignal(stepsTaken, signal, connection, source, sender, power);
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}
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}
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public void ClientWrite(Lidgren.Network.NetBuffer msg, object[] extraData = null)
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{
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msg.Write(autoPilot);
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if (!autoPilot)
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{
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//no need to write steering info if autopilot is controlling
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msg.Write(targetVelocity.X);
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msg.Write(targetVelocity.Y);
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}
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else
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{
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msg.Write(posToMaintain != null);
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if (posToMaintain != null)
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{
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msg.Write(((Vector2)posToMaintain).X);
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msg.Write(((Vector2)posToMaintain).Y);
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}
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else
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{
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msg.Write(levelStartTickBox.Selected);
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}
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}
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}
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public void ServerRead(ClientNetObject type, Lidgren.Network.NetBuffer msg, Barotrauma.Networking.Client c)
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{
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bool autoPilot = msg.ReadBoolean();
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Vector2 newTargetVelocity = targetVelocity;
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bool maintainPos = false;
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Vector2? newPosToMaintain = null;
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bool headingToStart = false;
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if (autoPilot)
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{
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maintainPos = msg.ReadBoolean();
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if (maintainPos)
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{
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newPosToMaintain = new Vector2(
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msg.ReadFloat(),
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msg.ReadFloat());
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}
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else
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{
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headingToStart = msg.ReadBoolean();
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}
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}
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else
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{
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newTargetVelocity = new Vector2(msg.ReadFloat(), msg.ReadFloat());
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}
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if (!item.CanClientAccess(c)) return;
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AutoPilot = autoPilot;
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if (!AutoPilot)
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{
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targetVelocity = newTargetVelocity;
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}
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else
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{
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maintainPosTickBox.Selected = newPosToMaintain != null;
|
|
posToMaintain = newPosToMaintain;
|
|
|
|
if (posToMaintain == null)
|
|
{
|
|
levelStartTickBox.Selected = headingToStart;
|
|
levelEndTickBox.Selected = !headingToStart;
|
|
UpdatePath();
|
|
}
|
|
else
|
|
{
|
|
levelStartTickBox.Selected = false;
|
|
levelEndTickBox.Selected = false;
|
|
}
|
|
}
|
|
|
|
//notify all clients of the changed state
|
|
unsentChanges = true;
|
|
}
|
|
|
|
public void ServerWrite(Lidgren.Network.NetBuffer msg, Barotrauma.Networking.Client c, object[] extraData = null)
|
|
{
|
|
msg.Write(autoPilot);
|
|
|
|
if (!autoPilot)
|
|
{
|
|
//no need to write steering info if autopilot is controlling
|
|
msg.Write(targetVelocity.X);
|
|
msg.Write(targetVelocity.Y);
|
|
}
|
|
else
|
|
{
|
|
msg.Write(posToMaintain != null);
|
|
if (posToMaintain != null)
|
|
{
|
|
msg.Write(((Vector2)posToMaintain).X);
|
|
msg.Write(((Vector2)posToMaintain).Y);
|
|
}
|
|
else
|
|
{
|
|
msg.Write(levelStartTickBox.Selected);
|
|
}
|
|
}
|
|
}
|
|
|
|
public void ClientRead(ServerNetObject type, Lidgren.Network.NetBuffer msg, float sendingTime)
|
|
{
|
|
long msgStartPos = msg.Position;
|
|
|
|
bool autoPilot = msg.ReadBoolean();
|
|
Vector2 newTargetVelocity = targetVelocity;
|
|
bool maintainPos = false;
|
|
Vector2? newPosToMaintain = null;
|
|
bool headingToStart = false;
|
|
|
|
if (autoPilot)
|
|
{
|
|
maintainPos = msg.ReadBoolean();
|
|
if (maintainPos)
|
|
{
|
|
newPosToMaintain = new Vector2(
|
|
msg.ReadFloat(),
|
|
msg.ReadFloat());
|
|
}
|
|
else
|
|
{
|
|
headingToStart = msg.ReadBoolean();
|
|
}
|
|
}
|
|
else
|
|
{
|
|
newTargetVelocity = new Vector2(msg.ReadFloat(), msg.ReadFloat());
|
|
}
|
|
|
|
if (correctionTimer > 0.0f)
|
|
{
|
|
int msgLength = (int)(msg.Position - msgStartPos);
|
|
msg.Position = msgStartPos;
|
|
StartDelayedCorrection(type, msg.ExtractBits(msgLength), sendingTime);
|
|
return;
|
|
}
|
|
|
|
AutoPilot = autoPilot;
|
|
|
|
if (!AutoPilot)
|
|
{
|
|
targetVelocity = newTargetVelocity;
|
|
}
|
|
else
|
|
{
|
|
|
|
maintainPosTickBox.Selected = newPosToMaintain != null;
|
|
posToMaintain = newPosToMaintain;
|
|
|
|
if (posToMaintain == null)
|
|
{
|
|
levelStartTickBox.Selected = headingToStart;
|
|
levelEndTickBox.Selected = !headingToStart;
|
|
UpdatePath();
|
|
}
|
|
else
|
|
{
|
|
levelStartTickBox.Selected = false;
|
|
levelEndTickBox.Selected = false;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|