public HeightmapRenderer(WorldRenderer In, HeightMap For)
{
_in = In;
_for = For;
_p2d = new Perlin2D(100);
_renchunks = new RenderChunk[NUM_RENDER_CHUNKS] [];
for (int i = 0; i < _renchunks.Length; ++i) {
_renchunks [i] = new RenderChunk[NUM_RENDER_CHUNKS];
}
}
void Render(WorldRenderer WR, float X, float Y, int Pass)
{
GL.EnableClientState(ArrayCap.VertexArray);
GL.EnableClientState(ArrayCap.ColorArray);
GL.EnableClientState(ArrayCap.NormalArray);
int mincx = Floor(X / CHUNK_SIZE) - VIEW_DIST;
int mincy = Floor(Y / CHUNK_SIZE) - VIEW_DIST;
for (int cx = mincx; cx < mincx + VIEW_DIST + VIEW_DIST + 1; ++cx) {
for (int cy = mincy; cy < mincy + VIEW_DIST + VIEW_DIST + 1; ++cy) {
if (InFrustrum(cx, cy)) {
int cox = cx - mincx;
int coy = cy - mincy;
cox = Abs(cox - VIEW_DIST);
coy = Abs(coy - VIEW_DIST);
int d = 1;//(int)(Math.Sqrt(cox * cox + coy * coy));
int LOD = 32;
LOD >>= d;
if (LOD < 1)
LOD = 1;
int x = cx % NUM_RENDER_CHUNKS;
int y = cy % NUM_RENDER_CHUNKS;
if (x < 0)
x += NUM_RENDER_CHUNKS;
if (y < 0)
y += NUM_RENDER_CHUNKS;
if (_renchunks [x] [y] == null || _renchunks [x] [y].X != cx || _renchunks [x] [y].Y != cy || _renchunks [x] [y].LOD != LOD)
_renchunks [x] [y] = new RenderChunk(_for, _p2d, cx, cy, LOD);
switch (Pass) {
case PASS_GROUND:
_renchunks [x] [y].Render(WR);
break;
case PASS_WATER:
_renchunks [x] [y].RenderWater(WR);
break;
default:
throw new ArgumentException("Pass " + Pass + " out of range");
}
}
}
}
GL.DisableClientState(ArrayCap.VertexArray);
GL.DisableClientState(ArrayCap.NormalArray);
GL.DisableClientState(ArrayCap.ColorArray);
}