//Adds a mesh of spring joints in one of 2 configurations
//Both softbody style objects, bridges and ropes can be made using this method
//very demanding on the cpu
public void AddSpringJointGrid(Vector2 pos, int size, int _x, int _y, bool staticTopRow, Texture2D tex, bool isCircle, bool allToAll, float stiff, float rest, float damp, String name = "Spring")
{
Object[,] objs = new Object[_x, _y];
//SpringJoint[] springs = new SpringJoint[2 * size * (size - 1)];
SpringJoint spring = new SpringJoint();
bool isStatic = staticTopRow;
Random ran = new Random((int)DateTime.Now.Ticks * 100);
bool bridge;
if (_y == 1)
{
bridge = true;
}
else
{
bridge = false;
}
for (int y = 0; y < _y; y++)
{
//objs[0, y] = AddBox("Spring" + mSpringJointList.Count + 1, (pos.X + (spring.RestLength + 1f) * x), (pos.Y + (spring.RestLength + 1f) * y), size, size, Color.SeaGreen, 0.3f, 15f,true, true, true);
for (int x = 0; x < _x; x++)
{
if (tex != null)
{
objs[x, y] = AddBox(name, (pos.X + (tex.Height) * x), (pos.Y + (tex.Height) * y), tex, 0.01f, 3f, isStatic, !isStatic, true);
if (isCircle)
{
objs[x, y].HitBox = new Circle(new Vector2(pos.X, pos.Y), tex.Width / 2, objs[x, y]);
}
if (isStatic)
{
objs[x, y].HitBox = null;
}
}
else
{
if (x == 0 && staticTopRow || x == _x - 1 && staticTopRow)
{
isStatic = true;
}
else
{
isStatic = false;
}
objs[x, y] = AddBox(name, (pos.X + (size) * x), (pos.Y + (size) * y), size - 1, size - 1, Color.Green * 0.4f, 0.0f, 30f, isStatic, !false, true, false);
objs[x, y].SetFriction(0, 0);
if (isCircle)
{
objs[x, y].HitBox = new Circle(new Vector2(pos.X, pos.Y), size / 2, objs[x, y]);
}
if (x == (int)(_x / 2) || x == (int)(1) || x == (int)(_x - 2))
{
if (y == 0)
{
objs[x, y].Pathable = true;
}
}
}
//if (allToAll) objs[x, y].Renderable = false;
//objs[x, y] = AddBox(name, (pos.X + (spring.RestLength + 0f) * x), (pos.Y + (spring.RestLength + 0f) * y),texList[2], 0.5f, 10, isStatic, false, true);
}
// isStatic = false;
}
int count = 0;
if (_x == 1 || _y == 1 || !allToAll)
{
#region crosshatch joints
for (int x = 0; x < _x; x++)
{
for (int y = 0; y < _y; y++)
{
if (x != _x - 1)
{
spring = new SpringJoint(stiff, (objs[x, y].Position - objs[x + 1, y].Position).Length() + rest, damp);
spring.BodyA = objs[x, y];
spring.BodyB = objs[x + 1, y];
spring.IsBridge = bridge;
mSpringJointList.Add(spring);
count++;
}
if (y != _y - 1)
{
spring = new SpringJoint(20, (objs[x, y].Position - objs[x, y + 1].Position).Length() + rest, damp);
spring.BodyA = objs[x, y];
spring.BodyB = objs[x, y + 1];
spring.IsBridge = bridge;
mSpringJointList.Add(spring);
count++;
}
if (y < _y - 1 && x < _x - 1)
{
spring = new SpringJoint(20, (objs[x, y].Position - objs[x + 1, y + 1].Position).Length() + rest, damp);
spring.BodyA = objs[x, y];
spring.BodyB = objs[x + 1, y + 1];
spring.IsBridge = bridge;
mSpringJointList.Add(spring);
count++;
}
if (y > 0 && x < _x - 1)
{
spring = new SpringJoint(20, (objs[x, y].Position - objs[x + 1, y - 1].Position).Length() + rest, damp);
spring.BodyA = objs[x, y];
spring.BodyB = objs[x + 1, y - 1];
spring.IsBridge = bridge;
mSpringJointList.Add(spring);
count++;
}
}
}
#endregion
}
else
{
#region all to all joints
foreach (Object body in objs)
{
foreach (Object body2 in objs)
{
if (body == body2)
{
continue;
}
spring = new SpringJoint(stiff, (body.Position - body2.Position).Length(), damp);
spring.IsBridge = bridge;
if ((body.Position - body2.Position) * Vector2.UnitX == Vector2.Zero) //
{
spring.RestLength = (body.Position - body2.Position).Length() + rest;
spring.Stiffness = stiff / 10;
}
else
{
spring.Dampen = damp * 50;
}
spring.BodyA = body;
spring.BodyB = body2;
mSpringJointList.Add(spring);
count++;
}
}
#endregion
}
}
