public void add(InPlay obj)
{
bool haveAdded = false;
if (!AdditionalMath.contains(Area, obj.getRekt()) && parent != null)
{
parent.add(obj);
return;
}
for (int x = 0; x < 2; x++)
{
for (int y = 0; y < 2; y++)
{
RectangleF rect = obj.getRekt();
if (AdditionalMath.contains(innerQuads[x, y], rect))
{
haveAdded = true;
if (children[x, y] == null && Area.Height * Area.Width * .25 > minimum)
{
children[x, y] = new QuadNode(this, innerQuads[x, y], minimum, quadLevel + 1);
}
children[x, y].add(obj);
}
}
}
if (!haveAdded)
{
dict.Add(obj);
}
}
public void operateCollisions(GameObject obj, int x)
{
for (int y = x + 1; y < objects.Count; y++)
{
GameObject obj2 = objects.ElementAt(y);
RectangleF rekt1 = obj.getRekt();
RectangleF rekt2 = obj2.getRekt();
if (AdditionalMath.intersects(rekt1, rekt2))
{
obj.collision(obj2);
}
}
}
public void collision(InPlay other)
{
GameObject obj = (GameObject)other;
string nome = "player";
if (obj.getName().GetHashCode() == nome.GetHashCode())
{
inPlatCounter++;
//Console.WriteLine("Collision between " + name + " and " + obj.getName() + " " + inPlatCounter);
}
RectangleF rect = obj.getRekt();
RectangleF overside = gravityZone(rect.Height, rect.Width);
RectangleF under_side = underside(rect.Height, rect.Width);
bool inPlat = AdditionalMath.intersects(overside, rect); /*&& platform.Contains(rect)*/;
bool underPlat = AdditionalMath.intersects(under_side, rect);
if (underPlat)
{
obj.removeForce("speed up");
RectangleF newRect = new RectangleF(rect.X, under_side.Y - under_side.Height, rect.Width, rect.Height);
obj.setRekt(newRect);
}
if (inPlat)
{
//Console.WriteLine("Actually in Plat");
obj.InPlat = true;
rect = new RectangleF(rect.X, hitbox.Y + rect.Height, rect.Width, rect.Height);
obj.setRekt(rect);
obj.removeForce("gravity");
Vector v = obj.getVelocity();
double[] comps = v.getComponent();
comps[1] = 0;
v.setComponent(comps);
if (Universe.keysDown[0] && obj.getName().Equals("player"))
{
obj.addForce(new Vector(1000, Math.PI / 2, VectorType.FORCE, "jump up"));
}
//Console.WriteLine(obj.getVelocityMagnitude() + "-speed");
if (Math.Abs(obj.getVelocityMagnitude()) > .3)
{
//Console.WriteLine(obj.getName() + " friction direction " + (obj.getVelocityDirection() + Math.PI));
obj.addForce(new Vector(kineticFriction * Universe.g * obj.getMass(), obj.getVelocityDirection() + Math.PI, VectorType.FRICTION, "friction with " + name));
}
else
{
obj.removeForce("friction with " + name);
}
}
}
public void collisions()
{
List <InPlay> allPossibleCollisions = new List <InPlay>();
queueUpInPlays(allPossibleCollisions);
for (int x = 0; x < dict.Count; x++)
{
for (int y = x + 1; y < allPossibleCollisions.Count; y++)
{
InPlay obj1 = dict.ElementAt(x);
InPlay obj2 = allPossibleCollisions.ElementAt(y);
if (obj1 is GameObject && obj2 is GameObject)
{
if (AdditionalMath.intersects(obj1.getRekt(), obj2.getRekt()))
{
obj1.collision(obj2);
}
}
else
{
//Console.WriteLine("Comparison between {0} and {1}", obj1.toString(), obj2.toString());
if (obj1 is Platform)
{
Platform plat = (Platform)(obj1);
RectangleF rect = obj2.getRekt();
RectangleF overside = plat.gravityZone(rect.Height, rect.Width);
RectangleF underside = plat.gravityZone(rect.Height, rect.Width);
if (AdditionalMath.intersects(rect, overside))
{
plat.collision(obj2);
}
}
if (obj2 is Platform)
{
Platform plat = (Platform)(obj2);
RectangleF rect = obj1.getRekt();
RectangleF overside = plat.gravityZone(rect.Height, rect.Width);
RectangleF underside = plat.gravityZone(rect.Height, rect.Width);
if (AdditionalMath.intersects(rect, overside))
{
plat.collision(obj1);
}
}
}
}
}
}
public bool operatePlats(GameObject obj)
{
bool inAnyPlat = false;
foreach (Platform plat in platforms)
{
RectangleF rect = obj.getRekt();
RectangleF platform = plat.getRekt();
RectangleF gravityZone = plat.gravityZone(rect.Height, rect.Width);
RectangleF underside = plat.underside(rect.Height, rect.Width);
bool inPlat = AdditionalMath.contains(gravityZone, rect); /*&& platform.Contains(rect)*/;
bool underPlat = AdditionalMath.contains(underside, rect);
if (underPlat)
{
obj.removeForce("speed up");
RectangleF newRect = new RectangleF(rect.X, underside.Y - underside.Height, rect.Width, rect.Height);
obj.setRekt(newRect);
}
if (inPlat)
{
inAnyPlat = true;
rect = new RectangleF(rect.X, platform.Y + rect.Height, rect.Width, rect.Height);
obj.setRekt(rect);
obj.removeForce("gravity");
Vector v = obj.getVelocity();
double[] comps = v.getComponent();
comps[1] = 0;
v.setComponent(comps);
if (keysDown[0] && obj.getName().Equals("player"))
{
obj.addForce(new Vector(1000, Math.PI / 2, VectorType.FORCE, "jump up"));
}
if (Math.Abs(obj.getVelocityMagnitude()) > .3)
{
//Console.WriteLine(obj.getName() + " friction direction " + (obj.getVelocityDirection() + Math.PI));
obj.addForce(new Vector(plat.getKineticFriction() * g * obj.getMass(), obj.getVelocityDirection() + Math.PI, VectorType.FRICTION, "friction with " + plat.getName()));
}
else
{
obj.removeForce("friction with " + plat.getName());
}
}
}
return(inAnyPlat);
}
public void traverse(ObjectDelegate del, List <QuadNode> queue, bool movementChange)
{
for (int a = 0; a < dict.Count; a++)
{
InPlay obj = dict.ElementAt(a);
del(obj);
if (movementChange && !AdditionalMath.contains(Area, obj.getRekt()))
{
if (parent != null)
{
dict.Remove(obj);
parent.add(obj);
}
}
for (int x = 0; x < 2; x++)
{
for (int y = 0; y < 2; y++)
{
if (movementChange && AdditionalMath.contains(innerQuads[x, y], obj.getRekt()))
{
if (children[x, y] == null)
{
children[x, y] = new QuadNode(this, innerQuads[x, y], minimum, quadLevel + 1);
}
children[x, y].add(obj);
dict.Remove(obj);
}
}
}
}
for (int x = 0; x < 2; x++)
{
for (int y = 0; y < 2; y++)
{
if (children[x, y] != null)
{
queue.Add(children[x, y]);
}
}
}
}
public void collision(InPlay otherOne)
{
if (otherOne is GameObject)
{
GameObject other = (GameObject)otherOne;
double[] components = velocity.getComponent();
double[] theirComponents = other.velocity.getComponent();
double momentumX = components[0] * mass + theirComponents[0] * other.mass;
double momentumY = components[1] * mass + theirComponents[1] * other.mass;
double ourXVelocity, ourYVelocity, theirXVelocity, theirYVelocity;
if (other.elastic || elastic)
{
//kinetic energy when only taking into account velocity in the x direction
double xJoules = .5 * Math.Pow(components[0], 2) * mass + .5 * Math.Pow(theirComponents[0], 2) * other.mass;
//formula I figured out
double a = .5 * (other.mass + other.mass * other.mass / mass);
double b = -momentumX * other.mass / mass;
double c = .5 * momentumX * momentumX / mass - xJoules;
double[] theirPossibleVxs = AdditionalMath.quadraticFormula(a, b, c);
if (Math.Round(theirPossibleVxs[0], 5) == Math.Round(theirComponents[0], 5))
{
theirXVelocity = theirPossibleVxs[1];
}
else
{
theirXVelocity = theirPossibleVxs[0];
if (Double.IsNaN(theirXVelocity))
{
theirXVelocity = 0;
}
}
double yJoules = .5 * Math.Pow(components[1], 2) * mass + .5 * Math.Pow(theirComponents[1], 2) * other.mass;
double aa = .5 * (other.mass + other.mass * other.mass / mass);
double bb = -momentumY * other.mass / mass;
double cc = .5 * momentumY * momentumY / mass - yJoules;
//formula I figured out don't question it
double[] theirPossibleVys = AdditionalMath.quadraticFormula(aa, bb, cc);
if (Math.Round(theirPossibleVys[0], 5) == Math.Round(theirComponents[1], 5))
{
theirYVelocity = theirPossibleVys[1];
}
else
{
theirYVelocity = theirPossibleVys[0];
if (Double.IsNaN(theirYVelocity))
{
theirYVelocity = 0;
}
}
ourYVelocity = (momentumY - theirYVelocity * other.mass) / mass;
ourXVelocity = (momentumX - theirXVelocity * other.mass) / mass;
}
else
{
ourXVelocity = theirXVelocity = momentumX / (mass + other.mass);
ourYVelocity = theirYVelocity = momentumY / (mass + other.mass);
}
double velocityMag = Math.Sqrt(Math.Pow(ourXVelocity, 2) + Math.Pow(ourYVelocity, 2));
double otherVelocityMag = Math.Sqrt(Math.Pow(theirXVelocity, 2) + Math.Pow(theirYVelocity, 2));
double otherDirection = Math.Atan2(theirYVelocity, theirXVelocity);
double direction = Math.Atan2(ourYVelocity, ourXVelocity);
velocity = new Vector(velocityMag, direction, VectorType.VELOCITY, "velocity");
other.velocity = new Vector(otherVelocityMag, otherDirection, VectorType.VELOCITY, "velocity");
if (momentumX > 0)
{
if (rekt.X < other.rekt.X)
{
float change = ((rekt.X + rekt.Width) - other.rekt.X) / 2;
rekt = new RectangleF(rekt.X - change, rekt.Y, rekt.Width, rekt.Height);
other.rekt = new RectangleF(other.rekt.X + change, other.rekt.Y, other.rekt.Width, other.rekt.Height);
}
if (rekt.X > other.rekt.X)
{
float change = ((other.rekt.X + other.rekt.Width) - rekt.X) / 2;
other.rekt = new RectangleF(other.rekt.X - change, other.rekt.Y, other.rekt.Width, other.rekt.Height);
rekt = new RectangleF(rekt.X + change, rekt.Y, rekt.Width, rekt.Height);
}
}
if (momentumY > 0)
{
if (rekt.Y < other.rekt.Y)
{
float change = (rekt.Y - (other.rekt.Y - other.rekt.Height)) / 2;
other.rekt = new RectangleF(other.rekt.X, other.rekt.Y + change, other.rekt.Width, other.rekt.Height);
rekt = new RectangleF(rekt.X + change, rekt.Y - change, rekt.Width, rekt.Height);
}
if (rekt.Y > other.rekt.Y)
{
float change = (other.rekt.Y - (rekt.Y - rekt.Height)) / 2;
other.rekt = new RectangleF(other.rekt.X, other.rekt.Y - change, other.rekt.Width, other.rekt.Height);
rekt = new RectangleF(rekt.X + change, rekt.Y + change, rekt.Width, rekt.Height);
}
}
}
}