public void LoadContent(ContentManager cm, Ground land, Camera cam)
{
fx = cm.Load<Effect>("bbEffect");
treeTexture = cm.Load<Texture2D>("tree");
treeMap = cm.Load<Texture2D>("treeMap");
Locations = new List<Vector3>();
GenerateTreePositions(land);
List2Buffer(cam.device);
}
private void GenerateTreePositions(Ground land)
{
Color[] treeMapColors = new Color[treeMap.Width * treeMap.Height];
treeMap.GetData(treeMapColors);
int[,] noiseData = new int[treeMap.Width, treeMap.Height];
for (int x = 0; x < treeMap.Width; x++)
for (int y = 0; y < treeMap.Height; y++)
noiseData[x, y] = treeMapColors[y + x * treeMap.Height].R;
Random random = new Random();
float steep = (float)Math.Cos(MathHelper.ToRadians(15));
for (int x = 0; x < land.Width; x++)
{
for (int y = 0; y < land.Length; y++)
{
float alt = land.Height(x, y);
if ((alt < 8) || (alt > 14)) continue;
float level = Vector3.Dot(land.Vertices[x + y * land.Width].Normal, Vector3.Up);
if (level < steep) continue;
float relx = (float)x / (float)land.Width;
float rely = (float)y / (float)land.Length;
float noise = noiseData[(int)(relx * treeMap.Width), (int)(rely * treeMap.Height)];
float treeDensity;
if (noise > 200)
treeDensity = 5;
else if (noise > 150)
treeDensity = 4;
else if (noise > 100)
treeDensity = 3;
else
treeDensity = 0;
for (int currDetail = 0; currDetail < treeDensity; currDetail++)
{
float rand1 = (float)random.Next(1000) / 1000.0f;
float rand2 = (float)random.Next(1000) / 1000.0f;
Vector3 treePos = new Vector3((float)x - rand1, alt, -(float)y - rand2);
Locations.Add(treePos);
}
}
}
}
protected override void Initialize()
{
Window.Title = "3D Project";
//IsMouseVisible = true;
graphics.PreferredBackBufferWidth = 1280;
graphics.PreferredBackBufferHeight = 1024;
graphics.ApplyChanges();
land = new Ground("x6");
camera = new Camera();
dome = new Sky();
trees = new Forest();
this.Components.Add(new FrameRateCounter(this));
this.Components.Add(new ShowFPS(this));
base.Initialize();
}
