private void CreateFloor()
{
// static ground object.
GameObject ground = new GameObject ();
ClosedShape groundShape = new ClosedShape ();
groundShape.begin();
groundShape.addVertex(new Vector2(-10f, -2f));
groundShape.addVertex(new Vector2(-10f, 2f));
groundShape.addVertex(new Vector2(10f, 2f));
groundShape.addVertex(new Vector2(10f, -2f));
groundShape.finish();
// make the body.
Body groundBody = new Body();
groundBody.Setup(_world, groundShape, float.PositiveInfinity, new Vector2(0f, -5f), 0f, Vector2.one, false);
}
private void CreateFloor()
{
// static ground object.
GameObject ground = new GameObject();
ClosedShape groundShape = new ClosedShape();
groundShape.begin();
groundShape.addVertex(new Vector2(-10f, -2f));
groundShape.addVertex(new Vector2(-10f, 2f));
groundShape.addVertex(new Vector2(10f, 2f));
groundShape.addVertex(new Vector2(10f, -2f));
groundShape.finish();
// make the body.
Body groundBody = new Body();
groundBody.Setup(_world, groundShape, float.PositiveInfinity, new Vector2(0f, -5f), 0f, Vector2.one, false);
}
private void Start()
{
this.shape = GetComponent <Shape> ();
SpriteRenderer sprite = gameObject.GetComponent <SpriteRenderer>();
PolygonCollider2D col = gameObject.AddComponent <PolygonCollider2D>();
Vector2[] points = col.points;
Destroy(col);
ClosedShape shape = new ClosedShape();
shape.begin();
int i = this.shape.Points.Length - 1, l = 0;
for (; i > l; i -= detail)
{
shape.addVertex(this.shape.Points[i]);
}
if (i != l)
{
shape.addVertex(this.shape.Points[0]);
}
shape.finish();
switch (type)
{
case JellyType.Spring:
AddSpringBody(shape);
break;
case JellyType.Pressure:
AddPressureBody(shape);
break;
}
_spriteTexture = sprite.sprite.texture;
sprite.enabled = false;
}
private void Start()
{
this.shape = GetComponent<Shape> ();
SpriteRenderer sprite = gameObject.GetComponent<SpriteRenderer>();
PolygonCollider2D col = gameObject.AddComponent<PolygonCollider2D>();
Vector2[] points = col.points;
Destroy(col);
ClosedShape shape = new ClosedShape();
shape.begin();
int i = this.shape.Points.Length-1, l = 0;
for(;i>l;i-=detail)
{
shape.addVertex( this.shape.Points[i]);
}
if(i!=l)
{
shape.addVertex(this.shape.Points[0]);
}
shape.finish();
switch (type)
{
case JellyType.Spring:
AddSpringBody(shape);
break;
case JellyType.Pressure:
AddPressureBody(shape);
break;
}
_spriteTexture = sprite.sprite.texture;
sprite.enabled = false;
}
/// <summary>
/// Allows the game to perform any initialization it needs to before starting to run.
/// This is where it can query for any required services and load any non-graphic
/// related content. Calling base.Initialize will enumerate through any components
/// and initialize them as well.
/// </summary>
protected override void Initialize()
{
#if XBOX360
graphics.PreferredBackBufferWidth = this.Window.ClientBounds.Width;
graphics.PreferredBackBufferHeight = this.Window.ClientBounds.Height;
graphics.PreferMultiSampling = true;
#else
graphics.PreferredBackBufferWidth = 800;
graphics.PreferredBackBufferHeight = 600;
#endif
graphics.ApplyChanges();
screenWidth = graphics.GraphicsDevice.Viewport.Width;
screenHeight = graphics.GraphicsDevice.Viewport.Height;
// setup camera
cameraPos = new Vector3(-2f, -15f, 25f);
cameraLookVector = Vector3.Forward;
// basic effect used for drawing all objects, based on vertexcolor.
lineEffect = new BasicEffect(graphics.GraphicsDevice, null);
lineEffect.LightingEnabled = false;
lineEffect.VertexColorEnabled = true;
lineEffect.Alpha = 1.0f;
// initialize physics world
mWorld = new World();
// lists to keep track of bodies.
mSpringBodies = new List<DraggableSpringBody>();
mPressureBodies = new List<DraggablePressureBody>();
mStaticBodies = new List<Body>();
// STATIC COLLISION SHAPE
// all Closed Shape objects are assumed to be a list of lines going from point to point, with the last point
// connecting back to the first point to close the shape. This is a simple rectangle to represent the ground for this demo.
// ClosedShape objects are automatically "centered" when you call finish(), and that center becomes the center when
// setting the position of the object.
ClosedShape stat = new ClosedShape();
stat.begin();
stat.addVertex(new Vector2(-20f,-1f));
stat.addVertex(new Vector2(-20f, 1f));
stat.addVertex(new Vector2(20f, 1f));
stat.addVertex(new Vector2(20f, -1f));
stat.finish();
// creating the body. Since this is a static body, we can use the base class Body.
// setting the mass per point to PositiveInfinity makes it immobile / static.
Body b = new Body(mWorld, stat, float.PositiveInfinity, new Vector2(0f, -19f), 0, Vector2.One, false);
mStaticBodies.Add(b);
// this is a more complex body, in the shape of a capital "I", and connected with many internal springs.
ClosedShape shape = new ClosedShape();
shape.begin();
shape.addVertex(new Vector2(-1.5f, 2.0f));
shape.addVertex(new Vector2(-0.5f, 2.0f));
shape.addVertex(new Vector2(0.5f, 2.0f));
shape.addVertex(new Vector2(1.5f, 2.0f));
shape.addVertex(new Vector2(1.5f, 1.0f));
shape.addVertex(new Vector2(0.5f, 1.0f));
shape.addVertex(new Vector2(0.5f, -1.0f));
shape.addVertex(new Vector2(1.5f, -1.0f));
shape.addVertex(new Vector2(1.5f, -2.0f));
shape.addVertex(new Vector2(0.5f, -2.0f));
shape.addVertex(new Vector2(-0.5f, -2.0f));
shape.addVertex(new Vector2(-1.5f, -2.0f));
shape.addVertex(new Vector2(-1.5f, -1.0f));
shape.addVertex(new Vector2(-0.5f, -1.0f));
shape.addVertex(new Vector2(-0.5f, 1.0f));
shape.addVertex(new Vector2(-1.5f, 1.0f));
shape.finish();
// draggablespringbody is an inherited version of SpringBody that includes polygons for visualization, and the
// ability to drag the body around the screen with the cursor.
for (int x = -8; x <= 8; x += 4)
{
DraggableSpringBody body = new DraggableSpringBody(mWorld, shape, 1f, 150.0f, 5.0f, 300.0f, 15.0f, new Vector2(x, 0), 0.0f, Vector2.One);
body.addInternalSpring(0, 14, 300.0f, 10.0f);
body.addInternalSpring(1, 14, 300.0f, 10.0f);
body.addInternalSpring(1, 15, 300.0f, 10.0f);
body.addInternalSpring(1, 5, 300.0f, 10.0f);
body.addInternalSpring(2, 14, 300.0f, 10.0f);
body.addInternalSpring(2, 5, 300.0f, 10.0f);
body.addInternalSpring(1, 5, 300.0f, 10.0f);
body.addInternalSpring(14, 5, 300.0f, 10.0f);
body.addInternalSpring(2, 4, 300.0f, 10.0f);
body.addInternalSpring(3, 5, 300.0f, 10.0f);
body.addInternalSpring(14, 6, 300.0f, 10.0f);
body.addInternalSpring(5, 13, 300.0f, 10.0f);
body.addInternalSpring(13, 6, 300.0f, 10.0f);
body.addInternalSpring(12, 10, 300.0f, 10.0f);
body.addInternalSpring(13, 11, 300.0f, 10.0f);
body.addInternalSpring(13, 10, 300.0f, 10.0f);
body.addInternalSpring(13, 9, 300.0f, 10.0f);
body.addInternalSpring(6, 10, 300.0f, 10.0f);
body.addInternalSpring(6, 9, 300.0f, 10.0f);
body.addInternalSpring(6, 8, 300.0f, 10.0f);
body.addInternalSpring(7, 9, 300.0f, 10.0f);
// polygons!
body.addTriangle(0, 15, 1);
body.addTriangle(1, 15, 14);
body.addTriangle(1, 14, 5);
body.addTriangle(1, 5, 2);
body.addTriangle(2, 5, 4);
body.addTriangle(2, 4, 3);
body.addTriangle(14, 13, 6);
body.addTriangle(14, 6, 5);
body.addTriangle(12, 11, 10);
body.addTriangle(12, 10, 13);
body.addTriangle(13, 10, 9);
body.addTriangle(13, 9, 6);
body.addTriangle(6, 9, 8);
body.addTriangle(6, 8, 7);
body.finalizeTriangles(Color.SpringGreen, Color.Navy);
mSpringBodies.Add(body);
}
// pressure body. similar to a SpringBody, but with internal pressurized gas to help maintain shape.
JelloPhysics.ClosedShape ball = new ClosedShape();
ball.begin();
for (int i = 0; i < 360; i += 20)
{
ball.addVertex(new Vector2((float)Math.Cos(MathHelper.ToRadians((float)-i)), (float)Math.Sin(MathHelper.ToRadians((float)-i))));
}
ball.finish();
// make many of these.
for (int x = -10; x <= 10; x+=5)
{
DraggablePressureBody pb = new DraggablePressureBody(mWorld, ball, 1.0f, 40.0f, 10.0f, 1.0f, 300.0f, 20.0f, new Vector2(x, -12), 0, Vector2.One);
pb.addTriangle(0, 10, 9);
pb.addTriangle(0, 9, 1);
pb.addTriangle(1, 9, 8);
pb.addTriangle(1, 8, 2);
pb.addTriangle(2, 8, 7);
pb.addTriangle(2, 7, 3);
pb.addTriangle(3, 7, 6);
pb.addTriangle(3, 6, 4);
pb.addTriangle(4, 6, 5);
pb.addTriangle(17, 10, 0);
pb.addTriangle(17, 11, 10);
pb.addTriangle(16, 11, 17);
pb.addTriangle(16, 12, 11);
pb.addTriangle(15, 12, 16);
pb.addTriangle(15, 13, 12);
pb.addTriangle(14, 12, 15);
pb.addTriangle(14, 13, 12);
pb.finalizeTriangles((x==-10) ? Color.Teal : Color.Maroon);
mPressureBodies.Add(pb);
}
// default cursor position, etc.
mCursorPos = new Vector2(cameraPos.X, cameraPos.Y);
base.Initialize();
}