/* -----------------------------
* Main method
*-----------------------------*/
public bool DrawMap(Rect area)
{
bool r = false;
GUI.BeginGroup(area);
area = new Rect(Vector2.zero, area.size);
// update the pixel absolute to relative convert variable
PATR = -(centerPixel - (area.size / 2f).ToVector2d() - area.position.ToVector2d());
var mousePos = Event.current.mousePosition.ToVector2d();
var delta = new Vector2d(Event.current.delta.x, Event.current.delta.y);
if (Event.current.type != EventType.Layout)
{
GeoMousePosition = GM.MetersToLatLon(GM.PixelsToMeters(RelativeToAbsolute(mousePos), Zoom));
}
switch (Event.current.type)
{
case EventType.Repaint:
{
// Draw the tiles
DrawTiles(area);
// Draw the GeoShapes
DrawGeometries(area);
// Draw the Resources
DrawResources(area);
if (selectedGeometry != null && selectedGeometry.Points.Count > 0)
{
var pixels = PixelsToRelative(LatLonToPixels(selectedGeometry.Points)).ConvertAll(p => p.ToVector2());
var v2mousepos = mousePos.ToVector2();
// Find the closest index
var min = pixels.Min(p => (p - v2mousepos).magnitude);
var closest = pixels.FindIndex(p => (p - v2mousepos).magnitude == min);
// Fix the previous and next
var prev = closest == 0 ? pixels.Count - 1 : closest - 1;
var next = (closest + 1) % pixels.Count;
// Calculate the normal to both adjacent axis to closest point
var c = pixels[closest];
var v1 = (pixels[closest] - pixels[prev]).normalized;
var v2 = (pixels[closest] - pixels[next]).normalized;
var closestNormal = (v1 + v2).normalized;
var convex = Vector3.Cross(v1, v2).z > 0;
var mouseVector = (v2mousepos - c);
var left = Vector3.Cross(closestNormal, mouseVector).z > 0;
Handles.DrawLine(pixels[closest], v2mousepos);
if ((left && convex) || (!left && !convex))
{
Handles.DrawLine(pixels[prev], v2mousepos);
}
else
{
Handles.DrawLine(pixels[next], v2mousepos);
}
}
}
break;
case EventType.ScrollWheel:
{
// Changezoom
Zoom += Mathf.FloorToInt(-Event.current.delta.y / 3f);
Event.current.Use();
}
break;
case EventType.MouseDrag:
{
// MoveLatLon or center var
if (area.Contains(Event.current.mousePosition))
{
if (selectedGeometry != null)
{
var pixels = LatLonToPixels(selectedGeometry.Points);
// If there's a point, move the point
if (selectedPoint != -1)
{
pixels[selectedPoint] += delta;
}
// Otherwise, move the pixel
else
{
pixels = pixels.ConvertAll(p => p + delta);
}
// Then update the points
selectedGeometry.Points = PixelsToLatLon(pixels);
}
else
{
Center = GM.MetersToLatLon(GM.PixelsToMeters(centerPixel - delta, Zoom));
}
Event.current.Use();
}
}
break;
case EventType.MouseDown:
{
selectedGeometry = Geometries.Find(g =>
{
List <Vector2d> points = PixelsToRelative(LatLonToPixels(g.Points))
.ConvertAll(p => p - Event.current.mousePosition.ToVector2d());
selectedPoint = points.FindIndex(p => p.magnitude < SelectPointDistance);
var marginMeters = (GM.PixelsToMeters(-PATR, Zoom) - GM.PixelsToMeters(-PATR + new Vector2d(SelectPointDistance, 0), Zoom)).magnitude;
var i = g.InsideMargin(GeoMousePosition, (float)marginMeters);
return(i || selectedPoint != -1);
});
if (area.Contains(Event.current.mousePosition))
{
GUI.FocusControl(null);
r = true;
}
}
break;
}
GUI.EndGroup();
return(r);
}