private void Start()
{
if (this._GPUParticleSystem == null)
{
this._GPUParticleSystem = UnityEngine.Object.FindObjectOfType <WaveParticlesSystemGPU>();
}
this._UseBuiltinParticleSystem = (this._UnityParticleSystem == null);
this._WaterComponent = this._GPUParticleSystem.GetComponent <Water>();
this.OnValidate();
Vector2 vector = ShipBowWavesEmitter.GetVector2(base.transform.position);
Vector2 previousFrameBowPosition = vector + this._WaterComponent.SurfaceOffset;
this._PreviousFrameBowPosition = previousFrameBowPosition;
}
private void LateUpdate()
{
Vector2 a = ShipBowWavesEmitter.GetVector2(base.transform.position);
Vector2 vector = a + this._WaterComponent.SurfaceOffset;
Vector2 vector2 = vector - this._PreviousFrameBowPosition;
Vector2 normalized = ShipBowWavesEmitter.GetVector2(base.transform.forward).normalized;
this._PreviousFrameBowPosition = vector;
float num = vector2.x * normalized.x + vector2.y * normalized.y;
if (num < 0f)
{
return;
}
float num2 = num;
this._TotalBowDeltaMagnitude += num2;
if (this._TotalBowDeltaMagnitude >= this._Space)
{
float time = Time.time;
float num3 = time - this._LastBowEmitTime;
this._LastBowEmitTime = time;
float num4 = this._TotalBowDeltaMagnitude / num3;
if (num4 >= this._MaxShipSpeed)
{
num4 = this._MaxShipSpeed;
}
float d = this._WaveSpeed * num4;
Vector2 a2 = new Vector2(normalized.x * this._AngleCos - normalized.y * this._AngleSin, normalized.x * this._AngleSin + normalized.y * this._AngleCos);
Vector2 a3 = new Vector2(normalized.x * this._AngleCos + normalized.y * this._AngleSin, normalized.y * this._AngleCos - normalized.x * this._AngleSin);
Vector2 normalized2 = ShipBowWavesEmitter.GetVector2(base.transform.right).normalized;
for (;;)
{
this._TotalBowDeltaMagnitude -= this._Space;
if (this._AdvancedEmissionPositioning)
{
float y = this._WaterComponent.transform.position.y + this._WaterComponent.GetHeightAt(a.x, a.y, time);
RaycastHit raycastHit;
if (!this._ShipCollider.Raycast(new Ray(new Vector3(a.x, y, a.y), new Vector3(-normalized.x, 0f, -normalized.y)), out raycastHit, 100f))
{
break;
}
a = ShipBowWavesEmitter.GetVector2(raycastHit.point) + normalized * this._AdvancedEmissionOffset;
}
Vector2 horizontalDisplacementAt = this._WaterComponent.GetHorizontalDisplacementAt(a.x, a.y, time);
a.x -= horizontalDisplacementAt.x;
a.y -= horizontalDisplacementAt.y;
if (this._UseBuiltinParticleSystem)
{
this._GPUParticleSystem.EmitParticle(new WaveParticlesSystemGPU.ParticleData
{
Position = a + normalized2 * this._LeftRightSpace,
Direction = a3 * d,
Amplitude = this._Amplitude,
Wavelength = this._Wavelength,
InitialLifetime = this._Lifetime,
Lifetime = this._Lifetime,
Foam = this._Foam,
UvOffsetPack = (float)UnityEngine.Random.Range(0, this._GPUParticleSystem.FoamAtlasHeight) / (float)this._GPUParticleSystem.FoamAtlasHeight * 16f + (float)UnityEngine.Random.Range(this._MinTextureIndex, this._MaxTextureIndex) / (float)this._GPUParticleSystem.FoamAtlasWidth,
TrailCalming = this._TrailCalming,
TrailFoam = this._TrailFoam
});
this._GPUParticleSystem.EmitParticle(new WaveParticlesSystemGPU.ParticleData
{
Position = a + normalized2 * -this._LeftRightSpace,
Direction = a2 * d,
Amplitude = this._Amplitude,
Wavelength = this._Wavelength,
InitialLifetime = this._Lifetime,
Lifetime = this._Lifetime,
Foam = this._Foam,
UvOffsetPack = (float)UnityEngine.Random.Range(0, this._GPUParticleSystem.FoamAtlasHeight) / (float)this._GPUParticleSystem.FoamAtlasHeight * 16f + (float)UnityEngine.Random.Range(this._MinTextureIndex, this._MaxTextureIndex) / (float)this._GPUParticleSystem.FoamAtlasWidth,
TrailCalming = this._TrailCalming,
TrailFoam = this._TrailFoam
});
}
else
{
ParticleSystem.EmitParams emitParams = default(ParticleSystem.EmitParams);
emitParams.position = new Vector3(a.x + normalized2.x * this._LeftRightSpace, this._WaterComponent.transform.position.y, a.y + normalized2.y * this._LeftRightSpace);
emitParams.velocity = new Vector3(a3.x, 0f, a3.y) * d;
this._UnityParticleSystem.Emit(emitParams, 1);
emitParams.position = new Vector3(a.x + normalized2.x * -this._LeftRightSpace, emitParams.position.y, a.y + normalized2.y * -this._LeftRightSpace);
emitParams.velocity = new Vector3(a2.x, 0f, a2.y) * d;
this._UnityParticleSystem.Emit(emitParams, 1);
}
if (this._TotalBowDeltaMagnitude < this._Space)
{
return;
}
}
return;
}
}