Lerp() public static method

public static Lerp ( float start, float end, float value ) : float
start float
end float
value float
return float
Example #1
0
        private float AnimationCurveCompletionPerc(float origPercentage)
        {
            switch (AnimationCurve)
            {
            case AnimationCurves.Linear:
            {
                return(Mathfx.Lerp(0, 1, origPercentage));
            }

            case AnimationCurves.Elastic:
            {
                return(Mathfx.Berp(0, 1, origPercentage));
            }

            case AnimationCurves.Bounce:
            {
                return(Mathfx.Bounce(origPercentage));
            }

            case AnimationCurves.EaseInOut:
            default:
            {
                return(Mathfx.Hermite(0, 1, origPercentage));
            }
            }
        }
Example #2
0
    /// <summary>
    /// Return value based on curve from Mathfx class.
    /// </summary>
    /// <returns>The value.</returns>
    /// <param name="animationCurve">Animation curve.</param>
    /// <param name="start">Start.</param>
    /// <param name="end">End.</param>
    /// <param name="t">T.</param>
    public static float CurvedValue(AnimationCurveEnum animationCurve, float start, float end, float t)
    {
        switch (animationCurve)
        {
        case AnimationCurveEnum.Hermite:
            return(Mathfx.Hermite(start, end, t));

        case AnimationCurveEnum.Sinerp:
            return(Mathfx.Sinerp(start, end, t));

        case AnimationCurveEnum.Coserp:
            return(Mathfx.Coserp(start, end, t));

        case AnimationCurveEnum.Berp:
            return(Mathfx.Berp(start, end, t));

        case AnimationCurveEnum.Bounce:
            return(start + ((end - start) * Mathfx.Bounce(t)));

        case AnimationCurveEnum.Lerp:
            return(Mathfx.Lerp(start, end, t));

        case AnimationCurveEnum.Clerp:
            return(Mathfx.Clerp(start, end, t));

        default:
            return(0);
        }
    }
    private float DoLerp()
    {
        switch (this._currentLerpType)
        {
        case LerpType.Lerp: return(Mathfx.Lerp(this.From, this.To, this.LerpZeroToOne));

        case LerpType.Hermite: return(Mathfx.Lerp(this.From, this.To, this.LerpZeroToOne));

        case LerpType.Sinerp: return(Mathfx.Sinerp(this.From, this.To, this.LerpZeroToOne));

        case LerpType.Coserp: return(Mathfx.Coserp(this.From, this.To, this.LerpZeroToOne));

        case LerpType.Berp: return(Mathfx.Berp(this.From, this.To, this.LerpZeroToOne));

        case LerpType.Smoothstep: return(Mathfx.SmoothStep(this.From, this.To, this.LerpZeroToOne));

        case LerpType.Clerp: return(Mathfx.Clerp(this.From, this.To, this.LerpZeroToOne));

        default: throw new ArgumentOutOfRangeException();
        }
    }
Example #4
0
        public double FromSurfaceTTA(double ApA, double alpha, double gturn_curve, double surface_vel)
        {
            var t      = 0.0;
            var v      = new Vector3d(0, surface_vel);
            var h      = (double)VSL.Altitude.Absolute;
            var m      = (double)VSL.Physics.M;
            var eStats = VSL.Engines.NoActiveEngines?
                         VSL.Engines.GetNearestEnginedStageStats() :
                         VSL.Engines.GetEnginesStats(VSL.Engines.Active);
            var mT    = eStats.MaxThrust;
            var mflow = eStats.MaxMassFlow;
            var mTm   = mT.magnitude * Mathfx.Lerp(0.6, 0.95, Utils.ClampH(
                                                       VSL.Torque.AngularAcceleration(eStats.TorqueInfo.Torque + VSL.Torque.RCSLimits.Max + VSL.Torque.WheelsLimits.Max).magnitude, 1));
            var s        = VSL.Geometry.AreaInDirection(mT);
            var R        = Body.Radius;
            var thrust   = true;
            var throttle = 1.0;

//			var alpha0 = alpha; //debug
            while (v.x >= 0)
            {
                var atmF = Utils.Clamp(h / Body.atmosphereDepth, 0, 1);
                if (thrust)
                {
                    double apaT;
                    var    apa  = freeclimb_altitude(m, s, h, v.x, v.y, DeltaTime * 4, out apaT);
                    var    dapa = (ApA - apa) * gturn_curve;
                    var    arc  = (alpha - v.y * apaT / (R + (h + apa) / 2)) * (R + apa);
                    var    vv   = Utils.ClampL(dapa, 0);
                    var    hv   = Utils.ClampL(arc - dapa, 0) * Utils.Clamp((h - VSL.Altitude.Absolute) / GLB.ORB.GTurnOffset, 0, 1);
                    if (h < Body.atmosphereDepth)
                    {
                        hv *= Math.Sqrt(atmF);
                    }
                    var angle = Math.Atan2(vv, hv);
                    throttle = ThrottleControl.NextThrottle((float)(Math.Sqrt(vv * vv + hv * hv) * Globals.Instance.ORB.Dist2VelF * VSL.Physics.StG / Utils.G0),
                                                            (float)throttle, (float)m, (float)mTm, 0);
                    var v_throttle = Math.Sin(angle);
                    v.x += (mTm * v_throttle * throttle / m - G(h, v.y)) * DeltaTime;
                    var h_throttle = 0.0;
                    if (arc > 0)
                    {
                        h_throttle = Math.Cos(angle);
                        v.y       += (mTm * h_throttle * throttle / m) * DeltaTime;
                    }
                    thrust = ApA - apa > GLB.ORB.Dtol && arc > GLB.ORB.Dtol;
                    if (!CheatOptions.InfinitePropellant)
                    {
                        var dm = mflow * (h_throttle + v_throttle) * throttle * DeltaTime;
                        if (m < dm)
                        {
                            thrust = false; continue;
                        }
                        m -= dm;
                    }
//					Utils.Log("apaT {}, dapa {}, arc {}, throttle {}, h-thr {}, v-thr {}", apaT, dapa, arc, throttle);//debug
                }
                else
                {
                    v.x -= G(h, v.y) * DeltaTime;
                }
                if (h < Body.atmosphereDepth)
                {
                    var y  = v.y - surface_vel * (1 - atmF);
                    var vm = Math.Sqrt(v.x * v.x + y * y);
                    var D  = drag(s, h, vm) / m * DeltaTime / vm;
                    v.x -= v.x * D;
                    v.y -= y * D;
                }
                alpha -= v.y * DeltaTime / Body.Radius;
                h     += v.x * DeltaTime;
                t     += DeltaTime;
//				Utils.Log("v.v {}, v.h {}, drag {}, h {}, hmove {}", v.x, v.y, drag(s, h, vm)/m, h, hmove);//debug
//				DebugUtils.CSV("LambertSolver", t, v.x, v.y, (alpha0-alpha)*(R+h), h, m, mTm*throttle, throttle, Math.Atan2(v.x, v.y)*Mathf.Rad2Deg);//debug
            }
            return(t - DeltaTime / 2);
        }