VertexPos3Col4[] BuildTerrainBorders(TerrainMap map, ref int totalTriangles)
{
TileDrawInfo drawInfo = new TileDrawInfo();
int lengthX = map.Width;
int lengthY = map.Length;
VertexPos3Col4[] vertices = new VertexPos3Col4[lengthX * lengthY * 4];
int index = 0;
for (int x = 0; x < lengthX; x++)
{
for (int y = 0; y < lengthY; y++)
{
Tile tile = map[x, y];
drawInfo.CurrentTile = tile;
drawInfo.MapX = x;
drawInfo.MapY = y;
RenderTileBorders(drawInfo, vertices, index);
index += 4;
}
} // end for
totalTriangles += drawInfo.TotalTriangles;
return(vertices);
}
void RenderTileBorders(TileDrawInfo drawInfo, VertexPos3Col4[] vertices, int index)
{
Tile tile = drawInfo.CurrentTile;
float x = tile.X;
float y = tile.Y;
float height = tile.Height;
FastColour colour = new FastColour(150, 150, 150);
vertices[index] = new VertexPos3Col4(x, height, y + 0.5f, colour);
vertices[index + 1] = new VertexPos3Col4(x + 0.5f, height, y, colour);
vertices[index + 2] = new VertexPos3Col4(x + tileWidth, height, y + 0.5f, colour);
vertices[index + 3] = new VertexPos3Col4(x + 0.5f, height, y + tileWidth, colour);
drawInfo.TotalTriangles += 2;
}