public GameObject(uint id, Vector2f position, Vector2f size, double weight,
Vector2f colliderOffset, bool isSolid, bool isStatic)
{
Init();
ID = id;
Body = new PhysicalModel(position, size, weight, colliderOffset, isSolid, isStatic);
}
private void ChangeVelocity(PhysicalModel first, PhysicalModel second)
{
var ox = (first.Incircle.Center - second.Incircle.Center).Normalize();
var oy = ox.Orthogonal();
var v1x = first.Velocity.ProectionTo(ox).X / ox.X;
var v1y = first.Velocity - first.Velocity.ProectionTo(ox);
var v2x = second.Velocity.ProectionTo(ox).X / ox.X;
var v2y = second.Velocity - second.Velocity.ProectionTo(ox);
var m1 = first.Weight;
var m2 = second.Weight;
var newV1x = ((m1 - m2) * v1x + 2 * m2 * v2x) / (m1 + m2);
var newV2x = ((m2 - m1) * v2x + 2 * m1 * v1x) / (m1 + m2);
// if one of the objects is static
// it will just reflect non-static object speed
newV1x = Double.IsNaN(newV1x) ? -v1x * StaticResistance : newV1x;
newV2x = Double.IsNaN(newV2x) ? -v2x * StaticResistance : newV2x;
newV1x = Double.IsNaN(newV1x) ? 0 : newV1x;
newV2x = Double.IsNaN(newV2x) ? 0 : newV2x;
first.Velocity = ox.Normalize() * (float)newV1x + v1y;
second.Velocity = ox.Normalize() * (float)newV2x + v2y;
}
public GameObject(uint id, Vector2f position, Vector2f size, double weight,
Vector2f colliderOffset, bool isSolid, bool isStatic)
{
Init();
ID = id;
Body = new PhysicalModel(position, size, weight, colliderOffset, isSolid, isStatic);
}
public Camera(Vector2f position)
{
Body = new PhysicalModel(position, new Vector2f(), 0, false, true);
Lighting = new List <Light>();
LockOffset = new Vector2f();
ReactionSpeed = 1.0f;
myActionScripts = new List <IActionScript>();
myKeyboardScripts = new List <IKeyboardScript>();
myCollisionScripts = new List <ICollisionScript>();
}
public Camera(Vector2f position)
{
Body = new PhysicalModel(position, new Vector2f(), 0, false, true);
Lighting = new List<Light>();
LockOffset = new Vector2f();
ReactionSpeed = 1.0f;
myActionScripts = new List<IActionScript>();
myKeyboardScripts = new List<IKeyboardScript>();
myCollisionScripts = new List<ICollisionScript>();
}
private void UpdatePosition(PhysicalModel body)
{
body.Position += body.Velocity;
// check if solid object is outside map borders
if (body.IsSolid)
{
var target = body.Collider;
var x = Math.Max(Math.Min(body.Collider.Position.X, master.Size.X - body.Collider.Size.X), 0);
var y = Math.Max(Math.Min(body.Collider.Position.Y, master.Size.Y - body.Collider.Size.Y), 0);
body.Position = new Vector2f(x, y) - body.ColliderOffset;
}
}
private bool AreIntersect(PhysicalModel first, PhysicalModel second)
{
switch (mode)
{
case PhysicsMode.Incircle:
return(first.Incircle.Intersects(second.Incircle));
case PhysicsMode.Сircumcircle:
return(first.Circumcircle.Intersects(second.Circumcircle));
default:
return(first.Collider.Intersects(second.Collider));
}
}
private Vector2f GetDelta(PhysicalModel first, PhysicalModel second)
{
switch (mode)
{
case PhysicsMode.Incircle:
return(RoundShape.GetEjectingVector(first.Incircle, second.Incircle));
case PhysicsMode.Сircumcircle:
return(RoundShape.GetEjectingVector(first.Circumcircle, second.Circumcircle));
default:
return(AABB.GetEjectingVector(first.Collider, second.Collider));
}
}
private void ChangeVelocity(PhysicalModel first, PhysicalModel second)
{
var ox = (first.Incircle.Center - second.Incircle.Center).Normalize();
var oy = ox.Orthogonal();
var v1x = first.Velocity.ProectionTo(ox).X / ox.X;
var v1y = first.Velocity - first.Velocity.ProectionTo(ox);
var v2x = second.Velocity.ProectionTo(ox).X / ox.X;
var v2y = second.Velocity - second.Velocity.ProectionTo(ox);
var m1 = first.Weight;
var m2 = second.Weight;
var newV1x = ((m1 - m2) * v1x + 2 * m2 * v2x) / (m1 + m2);
var newV2x = ((m2 - m1) * v2x + 2 * m1 * v1x) / (m1 + m2);
// if one of the objects is static
// it will just reflect non-static object speed
newV1x = Double.IsNaN(newV1x) ? -v1x * StaticResistance : newV1x;
newV2x = Double.IsNaN(newV2x) ? -v2x * StaticResistance : newV2x;
newV1x = Double.IsNaN(newV1x) ? 0 : newV1x;
newV2x = Double.IsNaN(newV2x) ? 0 : newV2x;
first.Velocity = ox.Normalize() * (float)newV1x + v1y;
second.Velocity = ox.Normalize() * (float)newV2x + v2y;
}
private bool AreIntersect(PhysicalModel first, PhysicalModel second)
{
switch (mode)
{
case PhysicsMode.Incircle:
return first.Incircle.Intersects(second.Incircle);
case PhysicsMode.Сircumcircle:
return first.Circumcircle.Intersects(second.Circumcircle);
default:
return first.Collider.Intersects(second.Collider);
}
}
private void UpdatePosition(PhysicalModel body)
{
body.Position += body.Velocity;
// check if solid object is outside map borders
if (body.IsSolid)
{
var target = body.Collider;
var x = Math.Max(Math.Min(body.Collider.Position.X, master.Size.X - body.Collider.Size.X), 0);
var y = Math.Max(Math.Min(body.Collider.Position.Y, master.Size.Y - body.Collider.Size.Y), 0);
body.Position = new Vector2f(x, y) - body.ColliderOffset;
}
}
private Vector2f GetDelta(PhysicalModel first, PhysicalModel second)
{
switch (mode)
{
case PhysicsMode.Incircle:
return RoundShape.GetEjectingVector(first.Incircle, second.Incircle);
case PhysicsMode.Сircumcircle:
return RoundShape.GetEjectingVector(first.Circumcircle, second.Circumcircle);
default:
return AABB.GetEjectingVector(first.Collider, second.Collider);
}
}