protected virtual void RenderToolCircle(Viewport viewport, Component_Terrain terrain, Vector2 center)
{
var radius = Component_Scene_DocumentWindow.TerrainToolRadius;
const double step = Math.PI / 32;
Vector3 lastPos = Vector3.Zero;
for (double angle = 0; angle <= Math.PI * 2 + step / 2; angle += step)
{
var pos = new Vector3(
center.X + Math.Cos(angle) * radius,
center.Y + Math.Sin(angle) * radius, 0);
pos.Z = terrain.GetHeight(pos.ToVector2(), false);
if (angle != 0)
{
viewport.Simple3DRenderer.AddLine(lastPos + new Vector3(0, 0, toolRenderOffset), pos + new Vector3(0, 0, toolRenderOffset));
}
lastPos = pos;
}
}
protected virtual void RenderToolLine(Viewport viewport, Component_Terrain terrain, Vector2 start, Vector2 end, int stepCount)
{
Vector2 diff = end - start;
Vector2 dir = diff;
var len = dir.Normalize();
Vector3 lastPos = Vector3.Zero;
for (int n = 0; n <= stepCount; n++)
{
Vector3 pos = new Vector3(
start.X + dir.X * ((float)n / stepCount * len),
start.Y + dir.Y * ((float)n / stepCount * len), 0);
pos.Z = terrain.GetHeight(pos.ToVector2(), false);
//if( selectedTerrain.HeightmapTerrainManager != null && HeightmapTerrainManager.Instance != null )
//{
// float z;
// if( HeightmapTerrainManager.Instance.GetHeight( pos.ToVector2(), false, out z ) )
// pos.Z = z;
// else
// pos.Z = float.MinValue;
//}
//else
// pos.Z = selectedTerrain.GetHeight( pos.ToVector2(), false );
if (n != 0)
{
if (lastPos.Z != double.MinValue && pos.Z != double.MinValue)
{
viewport.Simple3DRenderer.AddLine(lastPos + new Vector3(0, 0, toolRenderOffset), pos + new Vector3(0, 0, toolRenderOffset));
}
}
lastPos = pos;
}
}
