// Sets up terrain, texture, ...
private float[,] CreateTerrain(Texture2D heightMap)
{
float minimumHeight = 0;
float maximumHeight = 255;
int width = heightMap.Width;
int height = heightMap.Height;
boundingBox = new BoundingBox(
new Vector3(-width / 2, maximumHeight - minimumHeight, -height / 2),
new Vector3(width / 2, maximumHeight - minimumHeight, height / 2));
Color[] heightMapColors = new Color[width * height];
heightMap.GetData<Color>(heightMapColors);
// Setup height data from heightmap
float[,] heightData = new float[width, height];
for (int x = 0; x < width; ++x)
{
for (int y = 0; y < height; ++y)
{
heightData[x, y] = heightMapColors[x + y * width].R;
if (heightData[x, y] < minimumHeight)
minimumHeight = heightData[x, y];
if (heightData[x, y] > maximumHeight)
maximumHeight = heightData[x, y];
}
}
for (int x = 0; x < width; ++x)
for (int y = 0; y < height; ++y)
heightData[x, y] = (heightData[x, y] - minimumHeight) / (maximumHeight - minimumHeight) * 30;
// Setup Physics
heightMapInfo = new HeightMapInfo(heightData, 1);
if (heightMapObject != null)
{
heightMapObject.DisableComponent();
heightMapObject = null;
}
heightMapObject = new HeightMapObject(
heightMapInfo,
new Vector2(heightMapInfo.Width / 2, -heightMapInfo.Height / 2 + heightMapInfo.Height));
return heightData;
}
// Rebuilds the HeightMapObject from the given heights
void CreatePhysicsHeightmap(float[,] heights)
{
// If the physics object has been created already with previous settings...
if (physicsHeightmap != null)
{
// And there is a physics simulator available
Physics p = Engine.Services.GetService<Physics>();
if (p != null)
{
// Disable old height map object and remove it from engine
physicsHeightmap.Body.DisableBody();
p.PhysicsSystem.RemoveBody(physicsHeightmap.Body);
physicsHeightmap.DisableComponent();
}
}
// Create new HeightMapObject
physicsHeightmap = new HeightMapObject(new HeightMapInfo(heights, 1),
new Vector2(-1.0f, -1.0f));
}
