589 lines
23 KiB
C#
589 lines
23 KiB
C#
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using UnityEngine;
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// Sci-Fi Ship Controller. Copyright (c) 2018-2023 SCSM Pty Ltd. All rights reserved.
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namespace SciFiShipController
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{
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/// <summary>
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/// Class containing data for a thruster.
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/// </summary>
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[System.Serializable]
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public class Thruster
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{
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#region Public variables
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// IMPORTANT - when changing this section also update SetClassDefault()
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// Also update ClassName(ClassName className) Clone Constructor (if there is one)
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/// <summary>
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/// The name of the thruster.
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/// </summary>
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public string name;
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/// <summary>
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/// The maximum thrust force of this thruster in newtons.
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/// </summary>
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public float maxThrust;
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/// <summary>
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/// The amount of available power being supplied to the thruster.
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/// </summary>
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[Range(0f, 1f)] public float throttle;
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/// <summary>
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/// Position of the thruster in local space relative to the pivot point of the ship. This is the position where the thrust force will be applied at.
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/// </summary>
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public Vector3 relativePosition;
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/// <summary>
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/// The local space direction of thrust provided by the thruster. If you modify this, call Initialise().
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/// </summary>
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public Vector3 thrustDirection;
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/// <summary>
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/// The current thruster input (from 0 to 1).
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/// </summary>
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public float currentInput;
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/// <summary>
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/// The use of this thruster in terms of force. This defines what inputs control the thruster. 0 - none. 1 - forwards thrust. 2 - backwards thrust. 3 - upwards thrust. 4 - downwards thrust. 5 - rightwards thrust. 6 - leftwards thrust.
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/// If you modify this, call ReinitialiseInputVariables() on the ship this thruster is attached to.
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/// </summary>
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public int forceUse;
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/// <summary>
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/// The primary use of this thruster in terms of a moment (turning force). This defines what inputs control the thruster. 0 - none. 1 - positive roll. 2 - negative roll. 3 - positive pitch. 4 - negative pitch. 5 - positive yaw. 6 - negative yaw.
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/// If you modify this, call ReinitialiseInputVariables() on the ship this thruster is attached to.
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/// </summary>
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public int primaryMomentUse;
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/// <summary>
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/// The secondary use of this thruster in terms of a moment (turning force). This defines what inputs control the thruster. 0 - none. 1 - positive roll. 2 - negative roll. 3 - positive pitch. 4 - negative pitch. 5 - positive yaw. 6 - negative yaw.
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/// If you modify this, call ReinitialiseInputVariables() on the ship this thruster is attached to.
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/// </summary>
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public int secondaryMomentUse;
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/// <summary>
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/// The index of the damage region this thruster is associated with. When the damage model of the ship is set to simple, this
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/// is irrelevant. A negative value means it is associated with no damage region (so the thruster's performance will not be
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/// affected by damage). When the damage model of the ship is set to progressive, a value of zero means it is
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/// associated with the main damage region. When the damage model of the ship is set to localised, a zero or positive value
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/// indicates which damage region it is associated with (using a zero-based indexing system).
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/// </summary>
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public int damageRegionIndex;
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/// <summary>
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/// When minEffectsRate > 0 and throttle > 0 the effects fire when thruster input is 0.
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/// The limitEffectsOnY and Z settings are still honoured when this is true.
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/// </summary>
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public bool isMinEffectsAlwaysOn;
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/// <summary>
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/// The minimum (i.e. when its health reaches zero) performance level of this thruster. The performance level affects how much
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/// thrust is produced by this thruster. At a performance level of one it produces the maxThrust value. At a performance level of
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/// zero it produces no thrust.
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/// </summary>
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[Range(0f, 1f)] public float minPerformance;
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/// <summary>
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/// The starting health value of this thruster.
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/// </summary>
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public float startingHealth;
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/// <summary>
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/// The 0.0-1.0 value that indicates the minimum normalised amount of any particle or sound effects that are
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/// applied when a non-zero thrustinput is received for this thruster. Default is 0. If the full
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/// particle emission rate should be applied when any input is received, set the value to 1.0.
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/// </summary>
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[Range(0f, 1f)] public float minEffectsRate;
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/// <summary>
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/// Does the amount of throttle available affect the minEffectsRate?
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/// </summary>
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public bool isThrottleMinEffects;
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/// <summary>
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/// Limit when the effects are used for this thruster based on the speed of the
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/// ship along the local Z axis (forward or backward)
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/// </summary>
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public bool limitEffectsOnZ;
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/// <summary>
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/// The minimum speed in m/s on the local z-axis the ship must be travelling at before
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/// the effects will activate
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/// </summary>
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[Range(-5000f, 5000f)] public float minEffectsOnZ;
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/// <summary>
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/// The maximum speed in m/s on the local z-axis the ship can be travelling for the
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/// the effects to be active
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/// </summary>
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[Range(-5000f, 5000f)] public float maxEffectsOnZ;
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/// <summary>
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/// Limit when the effects are used for this thruster based on the speed of the
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/// ship along the local Y axis (up or down)
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/// </summary>
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public bool limitEffectsOnY;
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/// <summary>
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/// The minimum speed in m/s on the local y-axis the ship must be travelling at before
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/// the effects will activate
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/// </summary>
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[Range(-5000f, 5000f)] public float minEffectsOnY;
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/// <summary>
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/// The maximum speed in m/s on the local y-axis the ship can be travelling for the
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/// the effects to be active
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/// </summary>
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[Range(-5000f, 5000f)] public float maxEffectsOnY;
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/// <summary>
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/// Whether the thruster is shown as expanded in the inspector window of the editor.
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/// </summary>
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public bool showInEditor;
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/// <summary>
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/// Whether the thruster node is shown as selected in the scene view of the editor.
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/// </summary>
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public bool selectedInSceneView;
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/// <summary>
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/// Whether the gizmos for this thruster are shown in the scene view of the editor
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/// </summary>
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public bool showGizmosInSceneView;
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/// <summary>
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/// The number of seconds it takes for this thruster to go from minimum to maximum power.
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/// Also known as Throttle Up Time.
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/// </summary>
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[Range(0f,30f)] public float rampUpDuration;
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/// <summary>
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/// The number of seconds it takes for this thruster to go from maximum to minimum power.
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/// </summary>
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[Range(0f, 30f)] public float rampDownDuration;
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/// <summary>
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/// The amount of fuel available - range 0.0 (empty) to 100.0 (full).
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/// At runtime call either thruster.SetFuelLevel(..) or shipInstance.SetFuelLevel(..)
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/// </summary>
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[Range(0f, 100f)] public float fuelLevel;
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/// <summary>
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/// The rate fuel is consumed per second. If rate is 0, fuel is unlimited
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/// </summary>
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[Range(0f, 20f)] public float fuelBurnRate;
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/// <summary>
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/// The heat of the thruster or engine - range 0.0 (starting temp) to 100.0 (max temp).
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/// At runtime call either thruster.SetHeatLevel(..) or shipInstance.SetHeatLevel(..)
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/// </summary>
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[Range(0f, 100f)] public float heatLevel;
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/// <summary>
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/// The rate heat is added per second. If rate is 0, heat level never changes.
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/// </summary>
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[Range(0f, 20f)] public float heatUpRate;
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/// <summary>
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/// The rate heat is removed per second. This is the rate the thruster cools when not in use.
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/// </summary>
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[Range(0f, 20f)] public float heatDownRate;
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/// <summary>
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/// The heat level that the thruster will begin to overheat and start producing less thrust.
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/// </summary>
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[Range(50f, 100f)] public float overHeatThreshold;
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/// <summary>
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/// When the thruster reaches max heat level of 100, will the thruster be inoperable
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/// until it is repaired?
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/// </summary>
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public bool isBurnoutOnMaxHeat;
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#endregion
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#region Public Properties
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/// <summary>
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/// The current performance level of this thruster (determined by the Health value). The performance level affects how much
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/// thrust is produced by this thruster. At a performance level of one it produces the maxThrust value. At a performance level
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/// of zero it produces no thrust. The value will zero if the fuelLevel is 0.
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/// </summary>
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public float CurrentPerformance { get; private set; }
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/// <summary>
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/// Current fuel level - range 0.0 (empty) to 100.0 (full)
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/// </summary>
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public float FuelLevel { get { return fuelLevel; } }
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/// <summary>
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/// Current heat level - range 0.0 (starting temp) to 100.0 (max temp).
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/// </summary>
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public float HeatLevel { get { return heatLevel; } }
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/// <summary>
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/// The current health value of this thruster.
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/// </summary>
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public float Health
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{
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get { return health; }
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set
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{
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// Update the health value
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health = value;
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// Update the current performance value
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UpdateThrusterPerformance();
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}
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}
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/// <summary>
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/// The normalised local space direction of thrust provided by the thruster.
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/// </summary>
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public Vector3 thrustDirectionNormalised { get; private set; }
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#endregion
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#region Private variables
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private float health;
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private float previousInput;
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private float throttleDeltaAmount; // the amount to throttle down by
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private float startInput; // used with
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private float currentTargetInput;
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private float smoothTimer;
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private float rampTargetDuration;
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private bool isRampDown;
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#endregion
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#region Constructors
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// Class constructor
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public Thruster()
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{
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SetClassDefaults();
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}
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// Copy constructor
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public Thruster(Thruster thruster)
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{
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if (thruster == null) { SetClassDefaults(); }
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else
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{
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this.name = thruster.name;
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this.maxThrust = thruster.maxThrust;
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this.throttle = thruster.throttle;
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this.relativePosition = thruster.relativePosition;
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this.thrustDirection = thruster.thrustDirection;
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this.currentInput = thruster.currentInput;
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this.forceUse = thruster.forceUse;
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this.primaryMomentUse = thruster.primaryMomentUse;
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this.secondaryMomentUse = thruster.secondaryMomentUse;
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this.damageRegionIndex = thruster.damageRegionIndex;
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this.minPerformance = thruster.minPerformance;
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this.startingHealth = thruster.startingHealth;
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this.Health = thruster.Health;
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this.showInEditor = thruster.showInEditor;
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this.selectedInSceneView = thruster.selectedInSceneView;
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this.showGizmosInSceneView = thruster.showGizmosInSceneView;
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this.minEffectsRate = thruster.minEffectsRate;
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this.isThrottleMinEffects = thruster.isThrottleMinEffects;
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this.isMinEffectsAlwaysOn = thruster.isMinEffectsAlwaysOn;
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this.limitEffectsOnZ = thruster.limitEffectsOnZ;
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this.minEffectsOnZ = thruster.minEffectsOnZ;
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this.maxEffectsOnZ = thruster.maxEffectsOnZ;
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this.limitEffectsOnY = thruster.limitEffectsOnY;
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this.minEffectsOnY = thruster.minEffectsOnY;
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this.maxEffectsOnY = thruster.maxEffectsOnY;
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this.rampUpDuration = thruster.rampUpDuration;
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this.rampDownDuration = thruster.rampDownDuration;
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this.fuelLevel = thruster.fuelLevel;
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this.fuelBurnRate = thruster.fuelBurnRate;
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this.heatLevel = thruster.heatLevel;
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this.heatUpRate = thruster.heatUpRate;
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this.heatDownRate = thruster.heatDownRate;
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this.overHeatThreshold = thruster.overHeatThreshold;
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this.isBurnoutOnMaxHeat = thruster.isBurnoutOnMaxHeat;
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this.Initialise();
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}
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}
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#endregion
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#region Private or Internal Methods
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/// <summary>
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/// Reset thruster ramp up/down varibles.
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/// Used with SmoothThrusterInput(..)
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/// </summary>
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private void ResetThrusterDamping()
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{
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smoothTimer = 0f;
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rampTargetDuration = 0f;
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throttleDeltaAmount = 0f;
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currentTargetInput = 0f;
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previousInput = 0f;
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startInput = 0f;
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isRampDown = false;
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}
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/// <summary>
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/// Check if we need to burn fuel on this thruster. If there is no fuel
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/// available or the burn rate is 0, then do nothing.
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/// </summary>
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/// <param name="dTime"></param>
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internal void BurnFuel(float dTime)
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{
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if (fuelLevel > 0f && fuelBurnRate > 0f && currentInput > 0f)
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{
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// Burn fuel independently to the health level. A damaged thruster will burn the same
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// amount of fuel but produce less thrust
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SetFuelLevel(fuelLevel - (currentInput * fuelBurnRate * dTime));
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}
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}
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/// <summary>
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/// Check if we need to change the heat level on this thruster. If
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/// heat up rate is 0, then do nothing.
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/// </summary>
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/// <param name="dTime"></param>
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internal void ManageHeat (float dTime)
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{
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if (heatUpRate > 0f)
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{
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|||
|
|
// Heat or cool thruster independently to the health level.
|
|||
|
|
if (currentInput > 0f)
|
|||
|
|
{
|
|||
|
|
// Heating up
|
|||
|
|
if (heatLevel < 100f)
|
|||
|
|
{
|
|||
|
|
SetHeatLevel(heatLevel + (currentInput * heatUpRate * dTime));
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
// Only cool down if not burnt out
|
|||
|
|
else if (heatDownRate > 0f && (!isBurnoutOnMaxHeat || heatLevel < 100f))
|
|||
|
|
{
|
|||
|
|
// Cooling down
|
|||
|
|
SetHeatLevel(heatLevel - (heatDownRate * dTime));
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
#endregion
|
|||
|
|
|
|||
|
|
#region Public Non-Static Methods
|
|||
|
|
|
|||
|
|
public void SetClassDefaults()
|
|||
|
|
{
|
|||
|
|
this.name = "Thruster";
|
|||
|
|
this.maxThrust = 100000f;
|
|||
|
|
this.throttle = 1f;
|
|||
|
|
this.relativePosition = Vector3.zero;
|
|||
|
|
this.thrustDirection = Vector3.forward;
|
|||
|
|
this.currentInput = 0f;
|
|||
|
|
this.forceUse = 1;
|
|||
|
|
this.primaryMomentUse = 0;
|
|||
|
|
this.secondaryMomentUse = 0;
|
|||
|
|
this.damageRegionIndex = -1;
|
|||
|
|
this.minPerformance = 0.25f;
|
|||
|
|
this.startingHealth = 100f;
|
|||
|
|
this.Health = 100f;
|
|||
|
|
this.showInEditor = true;
|
|||
|
|
this.selectedInSceneView = false;
|
|||
|
|
this.showGizmosInSceneView = true;
|
|||
|
|
this.minEffectsRate = 0f;
|
|||
|
|
this.isThrottleMinEffects = false;
|
|||
|
|
this.isMinEffectsAlwaysOn = false;
|
|||
|
|
this.limitEffectsOnZ = false;
|
|||
|
|
this.minEffectsOnZ = -5000f;
|
|||
|
|
this.maxEffectsOnZ = 5000f;
|
|||
|
|
this.limitEffectsOnY = false;
|
|||
|
|
this.minEffectsOnY = -5000f;
|
|||
|
|
this.maxEffectsOnY = 5000f;
|
|||
|
|
this.rampUpDuration = 0f;
|
|||
|
|
this.rampDownDuration = 0f;
|
|||
|
|
this.fuelLevel = 100f;
|
|||
|
|
this.fuelBurnRate = 0f;
|
|||
|
|
this.heatLevel = 0f;
|
|||
|
|
this.heatUpRate = 0f;
|
|||
|
|
this.heatDownRate = 2f;
|
|||
|
|
this.overHeatThreshold = 80f;
|
|||
|
|
this.isBurnoutOnMaxHeat = false;
|
|||
|
|
this.Initialise();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Initialises data for the thruster. This does some precalculation to allow for performance improvements.
|
|||
|
|
/// Call after modifying thrustDirection.
|
|||
|
|
/// </summary>
|
|||
|
|
public void Initialise()
|
|||
|
|
{
|
|||
|
|
// Calculate normalised vectors
|
|||
|
|
thrustDirectionNormalised = thrustDirection.normalized;
|
|||
|
|
|
|||
|
|
// Reset thruster ramp up/down varibles
|
|||
|
|
ResetThrusterDamping();
|
|||
|
|
|
|||
|
|
UpdateThrusterPerformance();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Is the thruster heat level at or above the over heating threshold?
|
|||
|
|
/// </summary>
|
|||
|
|
/// <returns></returns>
|
|||
|
|
public bool IsThrusterOverheating()
|
|||
|
|
{
|
|||
|
|
return heatLevel >= overHeatThreshold;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Reset the heat level to 0 and reset health
|
|||
|
|
/// </summary>
|
|||
|
|
public void Repair()
|
|||
|
|
{
|
|||
|
|
ResetThrusterDamping();
|
|||
|
|
|
|||
|
|
heatLevel = 0f;
|
|||
|
|
|
|||
|
|
// This will also update the current performance
|
|||
|
|
Health = startingHealth;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Set the new fuel level available to this thruster.
|
|||
|
|
/// Range 0.0 (empty) to 100.0 (full).
|
|||
|
|
/// </summary>
|
|||
|
|
/// <param name="newFuelLevel"></param>
|
|||
|
|
public void SetFuelLevel (float newFuelLevel)
|
|||
|
|
{
|
|||
|
|
if (newFuelLevel < 0f) { newFuelLevel = 0f; }
|
|||
|
|
else if (newFuelLevel > 100f) { newFuelLevel = 100f; }
|
|||
|
|
|
|||
|
|
// Only update the thruster performance if we need to
|
|||
|
|
if (newFuelLevel != fuelLevel && (fuelLevel == 0f || newFuelLevel == 0f))
|
|||
|
|
{
|
|||
|
|
fuelLevel = newFuelLevel;
|
|||
|
|
UpdateThrusterPerformance();
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
fuelLevel = newFuelLevel;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (fuelLevel == 0f) { ResetThrusterDamping(); }
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Set the new heat level on this thruster.
|
|||
|
|
/// Range 0.0 (min) to 100.0 (max).
|
|||
|
|
/// </summary>
|
|||
|
|
/// <param name="newHeatLevel"></param>
|
|||
|
|
public void SetHeatLevel(float newHeatLevel)
|
|||
|
|
{
|
|||
|
|
if (newHeatLevel < 0f) { newHeatLevel = 0f; }
|
|||
|
|
else if (newHeatLevel > 100f) { newHeatLevel = 100f; }
|
|||
|
|
|
|||
|
|
// Only update the thruster performance if we need to
|
|||
|
|
// Update when:
|
|||
|
|
// a) heatLevel will be equal or above the overheat threshold
|
|||
|
|
// b) heatLevel will fallen below the overheat threshold
|
|||
|
|
// c) AND it has changed
|
|||
|
|
if (newHeatLevel != heatLevel && (newHeatLevel >= overHeatThreshold || (newHeatLevel < overHeatThreshold && heatLevel >= overHeatThreshold)))
|
|||
|
|
{
|
|||
|
|
heatLevel = newHeatLevel;
|
|||
|
|
UpdateThrusterPerformance();
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
heatLevel = newHeatLevel;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (heatLevel == 100f) { ResetThrusterDamping(); }
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Smooth or dampen the thruster's currentInput value based on user settings.
|
|||
|
|
/// Throttle up and down time can be set independently for each thruster.
|
|||
|
|
/// </summary>
|
|||
|
|
/// <param name="lastFrameTime"></param>
|
|||
|
|
public void SmoothThrusterInput(float lastFrameTime)
|
|||
|
|
{
|
|||
|
|
// Clamp 0.0-1.0
|
|||
|
|
currentInput = currentInput < 0f ? 0f : currentInput > 1f ? 1f : currentInput;
|
|||
|
|
|
|||
|
|
// Apply throttle level
|
|||
|
|
if (throttle < 1f && throttle >= 0f) { currentInput *= throttle; }
|
|||
|
|
|
|||
|
|
// If the ramp up time is not set, simply return the target value
|
|||
|
|
if (rampUpDuration > 0f || rampDownDuration > 0f)
|
|||
|
|
{
|
|||
|
|
// Are we still trying to get to the same target value?
|
|||
|
|
if (currentInput != currentTargetInput)
|
|||
|
|
{
|
|||
|
|
// Target value has changed
|
|||
|
|
currentTargetInput = currentInput;
|
|||
|
|
startInput = previousInput;
|
|||
|
|
smoothTimer = 0f;
|
|||
|
|
|
|||
|
|
// What is the delta between original value and target value?
|
|||
|
|
throttleDeltaAmount = currentTargetInput - previousInput;
|
|||
|
|
|
|||
|
|
// Are we ramping up or down?
|
|||
|
|
isRampDown = throttleDeltaAmount < 0f;
|
|||
|
|
|
|||
|
|
// What is the proportional ramp up duration between original value and target value?
|
|||
|
|
if (isRampDown)
|
|||
|
|
{
|
|||
|
|
throttleDeltaAmount *= -1f;
|
|||
|
|
rampTargetDuration = throttleDeltaAmount * rampDownDuration;
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
rampTargetDuration = throttleDeltaAmount * rampUpDuration;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Do we need to ramp up/down?
|
|||
|
|
if (smoothTimer < rampTargetDuration && rampTargetDuration >= 0f)
|
|||
|
|
{
|
|||
|
|
smoothTimer += lastFrameTime;
|
|||
|
|
|
|||
|
|
// Get the point on the throttle up curve
|
|||
|
|
// y = (e ^ x/a) - 1, where a = duration (in seconds) and x = elapsed time
|
|||
|
|
float rampValue = (float)System.Math.Pow(System.Math.E, smoothTimer / rampTargetDuration) - 1f;
|
|||
|
|
|
|||
|
|
// If close to the target value, set equal to the target value
|
|||
|
|
if (rampValue > 0.999f) { rampValue = 1f; smoothTimer = rampTargetDuration; }
|
|||
|
|
|
|||
|
|
// When throttling up/down, increase/reduce the amount by adding/subtracting the proportion to be reduced from the
|
|||
|
|
// original throttle input amount when the timer started.
|
|||
|
|
currentInput = isRampDown ? startInput - throttleDeltaAmount * rampValue : startInput + throttleDeltaAmount * rampValue;
|
|||
|
|
|
|||
|
|
previousInput = currentInput;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Update the CurrentPerformance value of this thruster. It gets automatically
|
|||
|
|
/// called when the Health is changed and when fuel or heat levels change.
|
|||
|
|
/// </summary>
|
|||
|
|
public void UpdateThrusterPerformance()
|
|||
|
|
{
|
|||
|
|
// Update the current performance value
|
|||
|
|
if (fuelLevel > 0f && heatLevel < 100f)
|
|||
|
|
{
|
|||
|
|
CurrentPerformance = health / startingHealth;
|
|||
|
|
if (heatUpRate > 0f && heatLevel >= overHeatThreshold)
|
|||
|
|
{
|
|||
|
|
CurrentPerformance *= 1f - SSCMath.Normalise(heatLevel, overHeatThreshold, 100f);
|
|||
|
|
}
|
|||
|
|
CurrentPerformance = CurrentPerformance > minPerformance ? CurrentPerformance : minPerformance;
|
|||
|
|
CurrentPerformance = CurrentPerformance < 1f ? CurrentPerformance : 1f;
|
|||
|
|
}
|
|||
|
|
else { CurrentPerformance = 0f; }
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
#endregion
|
|||
|
|
}
|
|||
|
|
}
|