/// <summary>
/// Update game state and all content. Should be called once every redraw, possibly called
/// more often than the draws but only if it exceeds time between frame draws.
/// </summary>
/// <param name="gameTime">Current time information of the application</param>
protected override void Update(GameTime gameTime)
{
int nVertCtr, nPolyCtr, nTestCtr;
List <Vector2> VertList = new List <Vector2>();
MouseState CurrMouse = Mouse.GetState();
Vector2 MousePt;
Color NewColor;
MousePt.X = CurrMouse.X;
MousePt.Y = CurrMouse.Y;
if ((CurrMouse.LeftButton == ButtonState.Pressed) && (cPriorMouse.LeftButton == ButtonState.Released))
{
//Mouse was just clicked, see if its in range of a vertex
for (nPolyCtr = 0; nPolyCtr < cPolyList.Count; nPolyCtr++)
{
VertList.Clear();
VertList.AddRange(cPolyList[nPolyCtr].GetVertexes(false));
for (nVertCtr = 0; nVertCtr < VertList.Count; nVertCtr++)
{
if (MGMath.IsPointInCircle(MousePt, VertList[nVertCtr], CIRCLERADIUS) == true)
{
cMousePoly = cPolyList[nPolyCtr];
cMouseVertIdx = nVertCtr;
break;
}
}
}
for (nPolyCtr = 0; cMousePoly == null && nPolyCtr < cPolyList.Count; nPolyCtr++)
{
if (MGMath.PointInConvexPolygon(MousePt, cPolyList[nPolyCtr].GetVertexes(false)) == true)
{
cMovePoly = cPolyList[nPolyCtr];
cMoveStart = MousePt;
break;
}
}
}
else if ((CurrMouse.LeftButton == ButtonState.Released) && (CurrMouse.RightButton == ButtonState.Pressed) && (cPriorMouse.RightButton == ButtonState.Released))
{
//Mouse was just clicked, see if its in range of a vertex
for (nPolyCtr = 0; cMousePoly == null && nPolyCtr < cPolyList.Count; nPolyCtr++)
{
if (MGMath.PointInConvexPolygon(MousePt, cPolyList[nPolyCtr].GetVertexes(false)) == true)
{
cMousePoly = cPolyList[nPolyCtr];
cMoveStart = MousePt;
break;
}
}
}
if ((CurrMouse.LeftButton == ButtonState.Released) && (CurrMouse.RightButton == ButtonState.Released) && ((cPriorMouse.LeftButton == ButtonState.Pressed) || (cPriorMouse.RightButton == ButtonState.Pressed)))
{
//Mouse was just released
cMousePoly = null;
cMovePoly = null;
}
if ((CurrMouse.LeftButton == ButtonState.Pressed) && (cMousePoly != null))
{
//Update the position of the selected vertex
cMousePoly.UpdateVertex(cMouseVertIdx, MousePt);
}
if ((CurrMouse.LeftButton == ButtonState.Pressed) && (cMovePoly != null))
{
//Update the position of the selected polygon
cMovePoly.MoveShape(MousePt - cMoveStart);
cMoveStart = MousePt;
}
if ((CurrMouse.LeftButton == ButtonState.Released) && (CurrMouse.RightButton == ButtonState.Pressed) && (cMousePoly != null))
{
//Update the rotation of the selected vertex
cMousePoly.RotateShape = MGMath.GetAngleFromPoints(cMoveStart, MousePt);
}
cPriorMouse = CurrMouse;
//Check if the polygons are colliding and make them red
for (nPolyCtr = 0; nPolyCtr < cPolyList.Count; nPolyCtr++)
{
//Reset the background color
NewColor = cPolyList[nPolyCtr].LineColor;
NewColor.R = 0;
cPolyList[nPolyCtr].LineColor = NewColor;
for (nTestCtr = 0; nTestCtr < cPolyList.Count; nTestCtr++)
{
if (nPolyCtr == nTestCtr) //Can't collide with itself
{
continue;
}
if (cPolyList[nPolyCtr].TestCollision(cPolyList[nTestCtr]) == true)
{
NewColor = cPolyList[nPolyCtr].LineColor;
NewColor.R = 255;
cPolyList[nPolyCtr].LineColor = NewColor;
}
}
}
cDevConsole.Update(gameTime);
//Use monogame update
base.Update(gameTime);
}
