public static void EnsureTilesLoaded()
{
if (PoolTiles != null)
{
return;
}
PoolTiles = new Modelled3DFloorTile[16];
for (int i = 0; i < 16; i++)
{
using (var file = File.Open($"Content/3D/floor/pool_hq_{i}.obj", FileMode.Open, FileAccess.Read, FileShare.Read))
{
var obj = new OBJ(file);
PoolTiles[i] = new Modelled3DFloorTile(obj, "pool.png");
}
}
CornerTiles = new Modelled3DFloorTile[4];
for (int i = 0; i < 4; i++)
{
using (var file = File.Open($"Content/3D/floor/poolcorner_hq_{i}.obj", FileMode.Open, FileAccess.Read, FileShare.Read))
{
var obj = new OBJ(file);
CornerTiles[i] = new Modelled3DFloorTile(obj, "pool.png");
}
}
}
protected void AppendTile(List <int> inds, List <TerrainParallaxVertex> verts, Modelled3DFloorTile tile, ushort index)
{
var tileBaseX = index % Bp.Width;
var tileBaseY = index / Bp.Width;
var baseInd = verts.Count;
var srcInds = tile.Indices;
var indLength = srcInds.Length;
for (int i = 0; i < indLength; i++)
{
inds.Add(srcInds[i] + baseInd);
}
var baseX = (int)Math.Max(1, Math.Min(Bp.Width - 1, tileBaseX));
var baseY = (int)Math.Max(1, Math.Min(Bp.Height - 1, tileBaseY));
var nextX = (int)Math.Max(1, Math.Min(Bp.Width - 1, tileBaseX + 1));
var nextY = (int)Math.Max(1, Math.Min(Bp.Height - 1, tileBaseY + 1));
var Altitude = Bp.Altitude;
var by = (baseY % Bp.Height) * Bp.Width;
var bx = (baseX % Bp.Width);
var ny = (nextY % Bp.Height) * Bp.Width;
var nx = (nextX % Bp.Width);
float h00 = Altitude[(by + bx)];
float h01 = Altitude[(ny + bx)];
float h10 = Altitude[(by + nx)];
float h11 = Altitude[(ny + nx)];
var tFactor = Bp.TerrainFactor;
var srcVerts = tile.Vertices;
for (int i = 0; i < srcVerts.Length; i++)
{
var vert = srcVerts[i];
var xLerp = vert.Position.X;
var yLerp = vert.Position.Z;
float xl1 = xLerp * h10 + (1 - xLerp) * h00;
float xl2 = xLerp * h11 + (1 - xLerp) * h01;
var yOff = (yLerp * xl2 + (1 - yLerp) * xl1) * tFactor;
vert.Position = (vert.Position + new Microsoft.Xna.Framework.Vector3(tileBaseX, yOff, tileBaseY)) * 3f;
verts.Add(vert);
}
}