/// <summary>
/// default constructor.
/// </summary>
/// <param name="w">world to add this body to (done automatically)</param>
public Body(World w)
{
mAABB = new AABB();
mBaseShape = null;
mGlobalShape = null;
mPointMasses = new List<PointMass>();
mScale = Vector2.One;
mIsStatic = false;
mKinematic = false;
mMaterial = 0;
w.addBody(this);
}
public static void RenderAABB(AABB aabb)
{
float srodekX = (aabb.Max.X - aabb.Min.X)/2 + aabb.Min.X, strodekY = (aabb.Max.Y - aabb.Min.Y)/2 + aabb.Min.Y;
Gl.glPushMatrix();
Gl.glColor3f(0, 0, 1);
Gl.glBegin(Gl.GL_LINES);
//wall
//1
Gl.glVertex2f(aabb.Min.X, aabb.Min.Y);
Gl.glVertex2f(aabb.Min.X, aabb.Max.Y);
//2
Gl.glVertex2f(aabb.Min.X, aabb.Max.Y);
Gl.glVertex2f(aabb.Max.X, aabb.Max.Y);
//3
Gl.glVertex2f(aabb.Max.X, aabb.Max.Y);
Gl.glVertex2f(aabb.Max.X, aabb.Min.Y);
//4
Gl.glVertex2f(aabb.Max.X, aabb.Min.Y);
Gl.glVertex2f(aabb.Min.X, aabb.Min.Y);
//springs
//1
Gl.glVertex2f(aabb.Min.X, aabb.Min.Y);
Gl.glVertex2f(srodekX, strodekY);
//2
Gl.glVertex2f(aabb.Min.X, aabb.Max.Y);
Gl.glVertex2f(srodekX, strodekY);
//3
Gl.glVertex2f(aabb.Max.X, aabb.Max.Y);
Gl.glVertex2f(srodekX, strodekY);
//4
Gl.glVertex2f(aabb.Max.X, aabb.Min.Y);
Gl.glVertex2f(srodekX, strodekY);
Gl.glEnd();
Gl.glPopMatrix();
}
/// <summary>
/// create a body, and set its shape and position immediately - with individual masses for each PointMass.
/// </summary>
/// <param name="w">world to add this body to (done automatically)</param>
/// <param name="shape">closed shape for this body</param>
/// <param name="pointMasses">list of masses for each PointMass</param>
/// <param name="position">global position of the body</param>
/// <param name="angleInRadians">global angle of the body</param>
/// <param name="scale">local scale of the body</param>
/// <param name="kinematic">whether this body is kinematically controlled.</param>
public void Setup(World w, ClosedShape shape, List<float> pointMasses, Vector2 position, float angleInRadians, Vector2 scale, bool kinematic)
{
mAABB = new AABB();
DerivedPos = position;
DerivedAngle = angleInRadians;
mLastAngle = DerivedAngle;
mScale = scale;
mMaterial = 0;
mIsStatic = false;
mKinematic = kinematic;
mPointMasses = new List<PointMass>();
setShape(shape);
for (int i = 0; i < mPointMasses.Count; i++)
mPointMasses [i].Mass = pointMasses [i];
updateAABB(0f, true);
w.addBody(this);
}
/// <summary>
/// create a body, and set its shape and position immediately
/// </summary>
/// <param name="w">world to add this body to (done automatically)</param>
/// <param name="shape">closed shape for this body</param>
/// <param name="massPerPoint">mass for each PointMass to be created</param>
/// <param name="position">global position of the body</param>
/// <param name="angleInRadians">global angle of the body</param>
/// <param name="scale">local scale of the body</param>
/// <param name="kinematic">whether this body is kinematically controlled</param>
public void Setup(World w, ClosedShape shape, float massPerPoint, Vector2 position, float angleInRadians, Vector2 scale, bool kinematic)
{
mAABB = new AABB();
DerivedPos = position;
DerivedAngle = angleInRadians;
mLastAngle = DerivedAngle;
mScale = scale;
mMaterial = 0;
mIsStatic = float.IsPositiveInfinity(massPerPoint);
mKinematic = kinematic;
mPointMasses = new List<PointMass>();
setShape(shape);
for (int i = 0; i < mPointMasses.Count; i++)
mPointMasses [i].Mass = massPerPoint;
updateAABB(0f, true);
w.addBody(this);
List<Vector2> points = new List<Vector2>();
foreach (PointMass m in mPointMasses)
{
points.Add(m.Position);
}
}
public bool intersects(ref AABB box)
{
// X overlap check.
bool overlapX = ((Min.x <= box.Max.x) && (Max.x >= box.Min.x));
bool overlapY = ((Min.y <= box.Max.y) && (Max.y >= box.Min.y));
return (overlapX && overlapY);
}
public void setWorldLimits(Vector2 min, Vector2 max)
{
mWorldLimits = new AABB(ref min, ref max);
mWorldSize = max - min;
mWorldGridStep = mWorldSize / 32;
}
public bool intersects(ref AABB box)
{
// X overlap check.
bool overlapX = ((Min.X <= box.Max.X) && (Max.X >= box.Min.X));
bool overlapY = ((Min.Y <= box.Max.Y) && (Max.Y >= box.Min.Y));
return (overlapX && overlapY);
}
