public override bool FrameRenderingQueued(FrameEventArgs evt)
{
if (this.mode != Mode.Normal)
{
// fire ray
Ray ray;
ray = TrayManager.GetCursorRay(Camera);
var rayResult = this.terrainGroup.RayIntersects(ray);
if (rayResult.Hit)
{
this.editMarker.IsVisible = true;
this.editNode.Position = rayResult.Position;
// figure out which terrains this affects
List <Axiom.Components.Terrain.Terrain> terrainList;
var brushSizeWorldSpace = TerrainWorldSize * this.brushSizeTerrainSpace;
var sphere = new Sphere(rayResult.Position, brushSizeWorldSpace);
this.terrainGroup.SphereIntersects(sphere, out terrainList);
foreach (var ti in terrainList)
{
DoTerrainModify(ti, rayResult.Position, evt.TimeSinceLastFrame);
}
}
else
{
this.editMarker.IsVisible = false;
}
}
if (!this.fly)
{
// clamp to terrain
var camPos = Camera.Position;
var ray = new Ray(new Vector3(camPos.x, this.terrainPos.y + 10000, camPos.z), Vector3.NegativeUnitY);
TerrainGroup.RayResult rayResult = this.terrainGroup.RayIntersects(ray);
Real distanceAboveTerrain = 50;
Real fallSpeed = 300;
Real newy = camPos.y;
if (rayResult.Hit)
{
if (camPos.y > rayResult.Position.y + distanceAboveTerrain)
{
this.fallVelocity += evt.TimeSinceLastFrame * 20;
this.fallVelocity = Utility.Min(this.fallVelocity, fallSpeed);
newy = camPos.y - this.fallVelocity * evt.TimeSinceLastFrame;
}
newy = Utility.Max(rayResult.Position.y + distanceAboveTerrain, newy);
Camera.Position = new Vector3(camPos.x, newy, camPos.z);
}
}
if (this.heightUpdateCountDown > 0)
{
this.heightUpdateCountDown -= evt.TimeSinceLastFrame;
if (this.heightUpdateCountDown <= 0)
{
this.terrainGroup.Update();
this.heightUpdateCountDown = 0;
}
}
if (this.terrainGroup.IsDerivedDataUpdateInProgress)
{
TrayManager.MoveWidgetToTray(this.infoLabel, TrayLocation.Top, 0);
this.infoLabel.Show();
if (this.terrainsImported)
{
this.infoLabel.Caption = "Building terrain, please wait...";
}
else
{
this.infoLabel.Caption = "Updating textures, patience...";
}
}
else
{
TrayManager.RemoveWidgetFromTray(this.infoLabel);
this.infoLabel.Hide();
if (this.terrainsImported)
{
SaveTerrains(true);
this.terrainsImported = false;
}
}
return(base.FrameRenderingQueued(evt));
}