float HeightDifference(Vector2 cell, FluxMode mode)
{
switch (mode)
{
case FluxMode.LeftFlux:
if ((int)cell.x - 1 < 0)
{
return(0);
}
return(grid[(int)cell.x, (int)cell.y].terrainHeight + grid[(int)cell.x, (int)cell.y].waterHeight - grid[(int)cell.x - 1, (int)cell.y].terrainHeight - grid[(int)cell.x - 1, (int)cell.y].waterHeight);
case FluxMode.RightFlux:
if ((int)cell.x + 1 >= size)
{
return(0);
}
return(grid[(int)cell.x, (int)cell.y].terrainHeight + grid[(int)cell.x, (int)cell.y].waterHeight - grid[(int)cell.x + 1, (int)cell.y].terrainHeight - grid[(int)cell.x + 1, (int)cell.y].waterHeight);
case FluxMode.UpFlux:
if ((int)cell.y - 1 < 0)
{
return(0);
}
return(grid[(int)cell.x, (int)cell.y].terrainHeight + grid[(int)cell.x, (int)cell.y].waterHeight - grid[(int)cell.x, (int)cell.y - 1].terrainHeight - grid[(int)cell.x, (int)cell.y - 1].waterHeight);
case FluxMode.DownFlux:
if ((int)cell.y + 1 >= size)
{
return(0);
}
return(grid[(int)cell.x, (int)cell.y].terrainHeight + grid[(int)cell.x, (int)cell.y].waterHeight - grid[(int)cell.x, (int)cell.y + 1].terrainHeight - grid[(int)cell.x, (int)cell.y + 1].waterHeight);
default:
return(0);
}
}
float GetFlux(Vector2 cell, FluxMode mode, float Δt)
{
switch (mode)
{
case FluxMode.LeftFlux:
return(Mathf.Max(0,
grid[(int)cell.x, (int)cell.y].outflowFlux[(int)FluxMode.LeftFlux] + Δt * (pipeLength * pipeLength) * ((Physics.gravity.y * HeightDifference(cell, FluxMode.LeftFlux)) / pipeLength)));
case FluxMode.RightFlux:
return(Mathf.Max(0,
grid[(int)cell.x, (int)cell.y].outflowFlux[(int)FluxMode.RightFlux] + Δt * (pipeLength * pipeLength) * ((Physics.gravity.y * HeightDifference(cell, FluxMode.RightFlux)) / pipeLength)));
case FluxMode.UpFlux:
return(Mathf.Max(0,
grid[(int)cell.x, (int)cell.y].outflowFlux[(int)FluxMode.UpFlux] + Δt * (pipeLength * pipeLength) * ((Physics.gravity.y * HeightDifference(cell, FluxMode.UpFlux)) / pipeLength)));
case FluxMode.DownFlux:
return(Mathf.Max(0,
grid[(int)cell.x, (int)cell.y].outflowFlux[(int)FluxMode.DownFlux] + Δt * (pipeLength * pipeLength) * ((Physics.gravity.y * HeightDifference(cell, FluxMode.DownFlux)) / pipeLength)));
default:
return(0);
}
}