void TriangulateWater()
{
foreach (Direction dir in Direction.directions)
{
Edge edge = GetEdge(dir);
Edge rightEdge = GetEdge(dir.Clockwise);
Edge leftEdge = GetEdge(dir.CounterClockwise);
WaterVertex left = new WaterVertex(ground[dir.CounterClockwise][3]);
WaterVertex right = new WaterVertex(ground[dir][3]);
if (rightEdge != null && rightEdge.water != null)
{
right = rightEdge.water[dir.Clockwise][0];
}
if (leftEdge != null && leftEdge.water != null)
{
left = leftEdge.water[dir.CounterClockwise][1];
}
if (edge != null && edge.water != null)
{
left = edge.water[dir][0];
right = edge.water[dir][1];
}
chunk.water.AddTriangle(waterCenter, left, right);
}
}
/// <summary>
/// Initialize vertex positions.
/// </summary>
void InitVertices(HexWorld world)
{
center = new GroundVertex(this, Random.insideUnitCircle / 5f);
ground = new Vertices <GroundVertex>();
river = new Vertices <RiverVertex>();
riverCenter = new RiverVertex(center);
waterCenter = new WaterVertex(center);
foreach (Direction dir in Direction.directions)
{
float centerHexOuterRadius = world.RiverWidth / HexWorld.COS_30 * 0.5f;
Vector2 edgeLeft = world.LeftVertex(dir);
Vector2 edgeMid = world.MiddleVertex(dir);
Vector2 edgeRight = world.RightVertex(dir);
Vector2 riverEdgeLeft = edgeMid + (edgeLeft - edgeRight).normalized * world.RiverWidth * 0.5f;
Vector2 riverEdgeRight = edgeMid + (edgeRight - edgeLeft).normalized * world.RiverWidth * 0.5f;
Vector2 a = edgeMid.normalized * centerHexOuterRadius + center.localPos;
Vector2 b = edgeLeft.normalized * world.RiverWidth + center.localPos;
Vector2 c = b + (edgeRight.normalized * world.RiverWidth + center.localPos - b) * 0.5f;
ground[dir] = new GroundVertex[] {
new GroundVertex(this, riverEdgeLeft),
new GroundVertex(this, edgeMid),
new GroundVertex(this, riverEdgeRight),
new GroundVertex(this, edgeRight),
new GroundVertex(this, b),
new GroundVertex(this, c),
new GroundVertex(this, a)
};
}
foreach (Direction dir in Direction.directions)
{
river[dir] = new RiverVertex[] {
new RiverVertex(ground[dir][0]),
new RiverVertex(ground[dir][2]),
new RiverVertex(ground[dir][4]),
new RiverVertex(ground[dir.Clockwise][4]),
new RiverVertex(ground[dir][6])
};
}
}
public void RefreshWater(bool refreshNeighbors)
{
if (water == null)
{
return;
}
Edge bottomLeft = Lower.GetEdge(Upstream.CounterClockwise);
Edge topLeft = Upper.GetEdge(Upstream.Opposite.Clockwise);
Edge bottomRight = Lower.GetEdge(Upstream.Clockwise);
Edge topRight = Upper.GetEdge(Upstream.Opposite.CounterClockwise);
switch (Type)
{
case EdgeType.LAND:
case EdgeType.WATER:
water[Upstream] = new WaterVertex[]
{
new WaterVertex(Lower, (bottomLeft == null || bottomLeft.Type != EdgeType.SHORE? ground[Upstream][0].GlobalPos : bottomLeft.water[Upstream.CounterClockwise][1].GlobalPos) - Lower.position),
new WaterVertex(Lower, (bottomRight == null || bottomRight.Type != EdgeType.SHORE? ground[Upstream][4].GlobalPos : bottomRight.water[Upstream.Clockwise][0].GlobalPos) - Lower.position)
};
water[Upstream.Opposite] = new WaterVertex[]
{
new WaterVertex(Upper, (topRight == null || topRight.Type != EdgeType.SHORE? ground[Upstream.Opposite][0].GlobalPos : topRight.water[Upstream.Opposite.CounterClockwise][1].GlobalPos) - Upper.position),
new WaterVertex(Upper, (topLeft == null || topLeft.Type != EdgeType.SHORE? ground[Upstream.Opposite][4].GlobalPos : topLeft.water[Upstream.Opposite.Clockwise][0].GlobalPos) - Upper.position)
};
break;
case EdgeType.SHORE:
water[Upstream.Opposite] = new WaterVertex[]
{
new WaterVertex(Lower, ground[Upstream][4].GlobalPos + Lerp(Lower.WaterLevel) - Lower.position, new Vector2(1f, 1f)),
new WaterVertex(Lower, ground[Upstream][0].GlobalPos + Lerp(Lower.WaterLevel) - Lower.position, new Vector2(0f, 1f))
};
water[Upstream] = new WaterVertex[]
{
new WaterVertex(Lower, (bottomLeft == null || bottomLeft.Type != EdgeType.SHORE? chunk.world.LeftShoreVertex(this) : chunk.world.ShoreVertex(this, bottomLeft)) - Lower.position, new Vector2(0f, 0f)),
new WaterVertex(Lower, (bottomRight == null || bottomRight.Type != EdgeType.SHORE? chunk.world.RightShoreVertex(this) : chunk.world.ShoreVertex(bottomRight, this)) - Lower.position, new Vector2(1f, 0f))
};
shore = new WaterVertex[]
{
new WaterVertex(Lower, ground[Upstream][1].GlobalPos + Lerp(Lower.WaterLevel) - Lower.position),
new WaterVertex(Lower, ground[Upstream][3].GlobalPos + Lerp(Lower.WaterLevel) - Lower.position)
};
shore[0].uv = new Vector2(1f, 1f);
shore[1].uv = new Vector2(0f, 1f);
if (refreshNeighbors)
{
if (bottomLeft != null)
{
bottomLeft.RefreshWater(false);
}
if (bottomRight != null)
{
bottomRight.RefreshWater(false);
}
}
break;
}
}