private static void NormalizeRect(ref ERectangleF rct)
{
if (rct.Width < 0)
{
rct.Offset(rct.Width, 0);
rct.Width = -rct.Width;
}
if (rct.Height < 0)
{
rct.Offset(0, rct.Height);
rct.Height = -rct.Height;
}
}
public override void SubDraw()
{
ERectangleF rctDraw = m_sp.CalcRectInDrawTarget();
// Matrix QuadMatrix = Matrix.Scaling(rctDraw.Width, rctDraw.Height, 1);
EPointF pntRegOff = m_sp.RegPoint.ToEPointF() / new EPointF(m_sp.SourceRect.Width, m_sp.SourceRect.Height) * new EPointF(rctDraw.Width, rctDraw.Height);
// QuadMatrix.Multiply(Matrix.Translation(-pntRegOff.X, pntRegOff.Y,0));
// QuadMatrix.Multiply(Matrix.RotationZ(-m_sp.Rotation));
// QuadMatrix.Multiply(Matrix.Translation(pntRegOff.X, -pntRegOff.Y,0));
EPoint renderControlSize = new EPoint(800, 600);
EPointF pntLoc = new EPointF(rctDraw.X - renderControlSize.X / 2, rctDraw.Y - renderControlSize.Y / 2);
//QuadMatrix.Multiply(Matrix.Translation(pntLoc.X, -pntLoc.Y, 0f));
int tx = ((MemberSpriteBitmapRenderStrategyA)this.m_sp.Member.RenderStrategy).TextureId;
Gl.glBindTexture(Gl.GL_TEXTURE_2D, tx);
//Gl.glRotatef(m_sp.Rotation, 0, 0, 1);
Gl.glBegin(Gl.GL_QUADS);
if (false)
{
Gl.glTexCoord2f(0, 0); Gl.glVertex3f(-1, -1, 1);
Gl.glTexCoord2f(1, 0); Gl.glVertex3f(1, -1, 1);
Gl.glTexCoord2f(1, 1); Gl.glVertex3f(1, 1, 1);
Gl.glTexCoord2f(0, 1); Gl.glVertex3f(-1, 1, 1);
}
rctDraw = rctDraw * 0.01f;
rctDraw.Offset(-1f, -1f);
// rctDraw.Y = 1f-rctDraw.Y;
Gl.glTexCoord2f(0, 0); Gl.glVertex3f(rctDraw.Left, rctDraw.Top, 1);
Gl.glTexCoord2f(1, 0); Gl.glVertex3f(rctDraw.Right, rctDraw.Top, 1);
Gl.glTexCoord2f(1, 1); Gl.glVertex3f(rctDraw.Right, rctDraw.Bottom, 1);
Gl.glTexCoord2f(0, 1); Gl.glVertex3f(rctDraw.Left, rctDraw.Bottom, 1);
Gl.glEnd();
}
private static void NormalizeRect(ref ERectangleF rct)
{
if (rct.Width < 0)
{
rct.Offset(rct.Width,0);
rct.Width = -rct.Width;
}
if (rct.Height < 0)
{
rct.Offset(0,rct.Height);
rct.Height = -rct.Height;
}
}
public static bool CalcCircleLineCollision(EPointF circleLoc, float radius, EPointF circleMovement, ERectangleF lineRect, out EPointF pntFirstCollision, out EPointF circleLocAtCollision)
{
//first calc two lines parallel with line, at radius distance from it
double dAngleLine = Math.Atan2((double)lineRect.Width, -(double)lineRect.Height);
double dAnglePerp = dAngleLine + Math.PI / 2;
EPointF pntOffset = new EPointF(radius * (float)Math.Sin(dAnglePerp), -radius * (float)Math.Cos(dAnglePerp));
ERectangleF lineRect1 = lineRect;
ERectangleF circleMovementLine = new ERectangleF(circleLoc, new EPointF(circleMovement.X, circleMovement.Y));
float fTimeFirstCollision = 1000;
pntFirstCollision = new EPointF(0, 0);
circleLocAtCollision = new EPointF(0, 0);
for (int i = -1; i < 2; i += 2)
{
ERectangleF lineRectParallel = lineRect.Copy();
lineRectParallel.Offset(pntOffset.X * i, pntOffset.Y * i);
EPointF pntCollision;
if (CalcLineLineCollision(circleMovementLine, lineRectParallel, out pntCollision))
{
EPointF pntDiff = new EPointF(pntCollision.X - circleMovementLine.X, pntCollision.Y - circleMovementLine.Y); //circleMovementLine.Left, pntCollision.Y-circleMovementLine.Top
float fTimeCollision = Endogine.Collision.PointLine.PointIsWhereOnLine(pntDiff, circleMovementLine);
if (fTimeCollision < fTimeFirstCollision)
{
fTimeFirstCollision = fTimeCollision;
pntFirstCollision = new EPointF(pntCollision.X - pntOffset.X * i, pntCollision.Y - pntOffset.Y * i);
circleLocAtCollision = pntCollision;
}
}
}
//also calc circle/circle collision (for line end points)
ArrayList aLocs, aTimes;
EPointF pntLinePointToTest = lineRect.Location;
for (int i = 0; i < 2; i++)
{
if (CalcCircleCircleCollisions(circleLoc, pntLinePointToTest, circleMovement, new EPointF(0, 0), radius, 0, out aLocs, out aTimes))
{
EPointF pntCollision = (EPointF)aLocs[0];
float fTimeCollision = (float)aTimes[0];
if (fTimeCollision < 0)
{
fTimeCollision = (float)aTimes[1];
if (fTimeCollision < 0 || fTimeCollision > 1)
{
continue;
}
pntCollision = (EPointF)aLocs[1];
}
if (fTimeCollision < fTimeFirstCollision)
{
fTimeFirstCollision = fTimeCollision;
pntFirstCollision = pntLinePointToTest;
circleLocAtCollision = new EPointF(circleLoc.X + circleMovement.X * fTimeCollision, circleLoc.Y + circleMovement.Y * fTimeCollision);
}
}
pntLinePointToTest = new EPointF(lineRect.X + lineRect.Width, lineRect.Y + lineRect.Height); //lineRect.Left+lineRect.Width, lineRect.Top
}
if (fTimeFirstCollision <= 1)
{
return(true);
}
return(false);
}