private Vector3 EventPositionForLocalPosition(WaterOnTerrainSFX.IntVector v)
{
Rect rect = this.GridCellRect(this.SampleGridToWorldGrid(v));
Vector3 position = base.transform.position;
position.x = Mathf.Clamp(position.x, rect.xMin, rect.xMax);
position.z = Mathf.Clamp(position.z, rect.yMin, rect.yMax);
return(position);
}
public void DrawDebug()
{
if (WaterOnTerrainSFX.cellTexture == null)
{
WaterOnTerrainSFX.CreateDebugTextures();
}
if (Camera.main != null)
{
Vector2 vector = new Vector2(110f, (float)(Camera.main.pixelHeight - 110));
Vector2 vector2 = vector - new Vector2(105f, 105f);
GUI.Box(new Rect(vector2.x, vector2.y - 35f, 210f, 245f), "Water On Terrain");
GUI.Label(new Rect(vector2.x, vector2.y - 10f, 210f, 35f), string.Format("Wetness: {0:f2}", WaterOnTerrainSFX.Wetness));
float num = 10f * this.gridCellSize * Mathf.Sqrt(2f);
float d = 100f / num;
float num2 = 0f;
float num3 = 0f;
for (int i = 0; i < 21; i++)
{
for (int j = 0; j < 21; j++)
{
num2 = Mathf.Max(num2, this.ScoreForSource(new WaterOnTerrainSFX.IntVector(i, j), null));
num3 = Mathf.Max(num3, this.sampleGrid[i, j].gradient);
}
}
float num4 = (num2 <= 0f) ? 0f : (1f / num2);
float num5 = (num3 <= 0f) ? 0f : (1f / num3);
Matrix4x4 matrix4x = Matrix4x4.TRS(vector, Quaternion.Euler(0f, 0f, -LocalPlayer.Transform.eulerAngles.y), new Vector3(1f, -1f, 1f) * d);
matrix4x *= Matrix4x4.TRS(new Vector3(-LocalPlayer.Transform.position.x, -LocalPlayer.Transform.position.z, 0f), Quaternion.identity, Vector3.one);
Matrix4x4 matrix = GUI.matrix;
Color color = GUI.color;
GUI.matrix *= matrix4x;
for (int k = 0; k < 21; k++)
{
for (int l = 0; l < 21; l++)
{
WaterOnTerrainSFX.IntVector intVector = new WaterOnTerrainSFX.IntVector(k, l);
GUI.color = new Color(0f, this.sampleGrid[k, l].gradient * num5, this.ScoreForSource(intVector, null) * num4, 0.5f);
GUI.DrawTexture(this.GridCellRect(this.SampleGridToWorldGrid(intVector)), WaterOnTerrainSFX.cellTexture);
}
}
GUI.matrix = matrix;
GUI.color = color;
if (this.centreSource.IsPlaying())
{
this.DrawSource(this.centreSource, matrix4x);
}
for (int m = 0; m < this.sources.Count; m++)
{
this.DrawSource(this.sources[m], matrix4x);
}
}
}
private void CacheGradients(WaterOnTerrainSFX.IntVector basePosition, WaterOnTerrainSFX.IntVector start, WaterOnTerrainSFX.IntVector end)
{
for (int i = start.x; i < end.x; i++)
{
for (int j = start.y; j < end.y; j++)
{
WaterOnTerrainSFX.IntVector b = new WaterOnTerrainSFX.IntVector(i, j) - WaterOnTerrainSFX.SAMPLE_GRID_CENTRE;
Vector3 position = this.GridCellCentre(basePosition + b);
position = Terrain.activeTerrain.transform.InverseTransformPoint(position);
TerrainData terrainData = Terrain.activeTerrain.terrainData;
position.x /= terrainData.size.x;
position.z /= terrainData.size.z;
this.sampleGrid[i, j].gradient = terrainData.GetSteepness(position.x, position.z);
}
}
}
private float ScoreForSource(WaterOnTerrainSFX.IntVector position, WaterOnTerrainSFX.Source source)
{
float num = 0f;
if (WaterOnTerrainSFX.IsWithinSampleGrid(position))
{
num = this.sampleGrid[position.x, position.y].score;
for (int i = 0; i < this.sources.Count; i++)
{
if (this.sources[i] != source)
{
float t = (float)((position - this.sources[i].localPosition).squareMagnitude / 5);
num *= Mathf.Lerp(0.1f, 1f, t);
}
}
}
return(num);
}
private void MoveSampleGridEntries(WaterOnTerrainSFX.IntVector offset)
{
WaterOnTerrainSFX.IntVector intVector;
WaterOnTerrainSFX.IntVector intVector2;
WaterOnTerrainSFX.IntVector intVector3;
if (offset.x <= 0)
{
intVector.x = 0;
intVector2.x = 21 + offset.x;
intVector3.x = 1;
}
else
{
intVector.x = 20;
intVector2.x = offset.x - 1;
intVector3.x = -1;
}
if (offset.y <= 0)
{
intVector.y = 0;
intVector2.y = 21 + offset.y;
intVector3.y = 1;
}
else
{
intVector.y = 20;
intVector2.y = offset.y - 1;
intVector3.y = -1;
}
for (int num = intVector.x; num != intVector2.x; num += intVector3.x)
{
for (int num2 = intVector.y; num2 != intVector2.y; num2 += intVector3.y)
{
this.sampleGrid[num, num2] = this.sampleGrid[num - offset.x, num2 - offset.y];
}
}
}
private float GradientForLocalPosition(WaterOnTerrainSFX.IntVector v)
{
return(this.sampleGrid[v.x, v.y].gradient);
}
private void UpdateSources()
{
float num = this.maximumScore / 5f;
int i = 0;
while (i < this.sources.Count)
{
WaterOnTerrainSFX.Source source = this.sources[i];
WaterOnTerrainSFX.IntVector localPosition = source.localPosition;
float num2 = this.ScoreForSource(source.localPosition, source);
for (int j = 0; j < WaterOnTerrainSFX.NEIGHBOURS.Length; j++)
{
WaterOnTerrainSFX.IntVector intVector = source.localPosition + WaterOnTerrainSFX.NEIGHBOURS[j];
float num3 = this.ScoreForSource(intVector, source);
if (num3 > num2)
{
num2 = num3;
localPosition = intVector;
}
}
if (num2 > num)
{
source.localPosition = localPosition;
source.SetGradient(this.GradientForLocalPosition(source.localPosition));
i++;
}
else
{
this.StopSource(i);
}
}
if (!this.centreSource.IsPlaying())
{
this.centreSource.Start(this.eventDescription, this.gradientParameterIndex, this.wetnessParameterIndex, WaterOnTerrainSFX.SAMPLE_GRID_CENTRE, base.transform.position, this.GradientForLocalPosition(WaterOnTerrainSFX.SAMPLE_GRID_CENTRE));
}
while (this.sourcePool.Count > 0)
{
WaterOnTerrainSFX.IntVector intVector2 = new WaterOnTerrainSFX.IntVector(0, 0);
float num4 = num;
WaterOnTerrainSFX.IntVector intVector3;
intVector3.x = 0;
while (intVector3.x < 21)
{
intVector3.y = 0;
while (intVector3.y < 21)
{
float num5 = this.ScoreForSource(intVector3, null);
if (num5 > num4)
{
num4 = num5;
intVector2 = intVector3;
}
intVector3.y++;
}
intVector3.x++;
}
if (num4 <= num)
{
break;
}
WaterOnTerrainSFX.Source source2 = this.sourcePool.Pop();
source2.Start(this.eventDescription, this.gradientParameterIndex, this.wetnessParameterIndex, intVector2, this.EventPositionForLocalPosition(intVector2), this.GradientForLocalPosition(intVector2));
this.sources.Add(source2);
}
float distance = Time.deltaTime * this.sourceSpeed;
this.centreSource.UpdateEvent(base.transform.position, float.MaxValue, WaterOnTerrainSFX.Wetness);
for (int k = 0; k < this.sources.Count; k++)
{
WaterOnTerrainSFX.Source source3 = this.sources[k];
source3.UpdateEvent(this.EventPositionForLocalPosition(source3.localPosition), distance, WaterOnTerrainSFX.Wetness);
}
}
public void Start(EventDescription eventDescription, int gradientParameterIndex, int wetnessParameterIndex, WaterOnTerrainSFX.IntVector localPosition, Vector3 eventPosition, float gradient)
{
this.localPosition = localPosition;
this.eventPosition = eventPosition;
this.gradientParameterIndex = gradientParameterIndex;
this.wetnessParameterIndex = wetnessParameterIndex;
UnityUtil.ERRCHECK(eventDescription.createInstance(out this.eventInstance));
UnityUtil.ERRCHECK(this.eventInstance.set3DAttributes(eventPosition.to3DAttributes()));
this.SetGradient(gradient);
UnityUtil.ERRCHECK(this.eventInstance.start());
}
private Rect GridCellRect(WaterOnTerrainSFX.IntVector v)
{
return(new Rect((float)v.x * this.gridCellSize, (float)v.y * this.gridCellSize, this.gridCellSize, this.gridCellSize));
}
private Vector3 GridCellCentre(WaterOnTerrainSFX.IntVector v)
{
return(new Vector3(((float)v.x + 0.5f) * this.gridCellSize, 0f, ((float)v.y + 0.5f) * this.gridCellSize));
}
private void UpdateSampleGrid()
{
WaterOnTerrainSFX.IntVector intVector = new WaterOnTerrainSFX.IntVector(Mathf.FloorToInt(base.transform.position.x / this.gridCellSize), Mathf.FloorToInt(base.transform.position.z / this.gridCellSize));
if (intVector != this.gridPosition)
{
WaterOnTerrainSFX.IntVector intVector2 = intVector - this.gridPosition;
if (Math.Abs(intVector2.x) < 21 && Math.Abs(intVector2.y) < 21)
{
this.MoveSampleGridEntries(-intVector2);
WaterOnTerrainSFX.IntVector intVector3;
WaterOnTerrainSFX.IntVector intVector4;
if (intVector2.x < 0)
{
intVector3.x = 0;
intVector4.x = -intVector2.x;
}
else
{
intVector3.x = 21 - intVector2.x;
intVector4.x = 21;
}
if (intVector2.y < 0)
{
intVector3.y = 0;
intVector4.y = -intVector2.y;
}
else
{
intVector3.y = 21 - intVector2.y;
intVector4.y = 21;
}
this.CacheGradients(intVector, new WaterOnTerrainSFX.IntVector(0, intVector3.y), new WaterOnTerrainSFX.IntVector(21, intVector4.y));
if (intVector3.y > 0)
{
this.CacheGradients(intVector, new WaterOnTerrainSFX.IntVector(intVector3.x, 0), new WaterOnTerrainSFX.IntVector(intVector4.x, intVector3.y));
}
else
{
this.CacheGradients(intVector, new WaterOnTerrainSFX.IntVector(intVector3.x, intVector4.y), new WaterOnTerrainSFX.IntVector(intVector4.x, 21));
}
}
else
{
this.CacheGradients(intVector, new WaterOnTerrainSFX.IntVector(0, 0), new WaterOnTerrainSFX.IntVector(21, 21));
}
this.CalculateSampleGridScores();
int i = 0;
while (i < this.sources.Count)
{
WaterOnTerrainSFX.Source source = this.sources[i];
this.sources[i].localPosition -= intVector2;
int squareMagnitude = (source.localPosition - WaterOnTerrainSFX.SAMPLE_GRID_CENTRE).squareMagnitude;
if (!WaterOnTerrainSFX.IsWithinSampleGrid(source.localPosition) || squareMagnitude > 100)
{
this.StopSource(i);
}
else
{
i++;
}
}
this.gridPosition = intVector;
}
}
private WaterOnTerrainSFX.IntVector SampleGridToWorldGrid(WaterOnTerrainSFX.IntVector v)
{
return(v + this.gridPosition - WaterOnTerrainSFX.SAMPLE_GRID_CENTRE);
}
private static bool IsWithinSampleGrid(WaterOnTerrainSFX.IntVector v)
{
return(v.x >= 0 && v.x < 21 && v.y >= 0 && v.y < 21);
}