public Objects(World world, Vector2 startPosition, Vector2 endPosition, int count, float radius, ObjectType type)
{
_bodies = new List <Body>(count);
CollidesWith = Category.All;
CollisionCategories = Category.All;
// Physics
for (int i = 0; i < count; i++)
{
switch (type)
{
case ObjectType.Circle:
_bodies.Add(BodyFactory.CreateCircle(world, radius, 1f));
break;
case ObjectType.Rectangle:
_bodies.Add(BodyFactory.CreateRectangle(world, radius, radius, 1f));
break;
case ObjectType.Star:
_bodies.Add(BodyFactory.CreateGear(world, radius, 10, 0f, 1f, 1f));
break;
case ObjectType.Gear:
_bodies.Add(BodyFactory.CreateGear(world, radius, 10, 100f, 1f, 1f));
break;
}
}
for (int i = 0; i < _bodies.Count; i++)
{
Body body = _bodies[i];
body.BodyType = BodyType.Dynamic;
body.Position = Vector2.Lerp(startPosition, endPosition, i / (float)(count - 1));
body.Restitution = 0.7f;
body.Friction = 0.2f;
}
//GFX
switch (type)
{
case ObjectType.Circle:
_object = new Sprite(ContentWrapper.CircleTexture(radius, ContentWrapper.Gold, ContentWrapper.Grey));
break;
case ObjectType.Rectangle:
_object = new Sprite(ContentWrapper.PolygonTexture(PolygonUtils.CreateRectangle(radius / 2f, radius / 2f), ContentWrapper.Red, ContentWrapper.Grey));
break;
case ObjectType.Star:
_object = new Sprite(ContentWrapper.PolygonTexture(PolygonUtils.CreateGear(radius, 10, 0f, 1f), ContentWrapper.Brown, ContentWrapper.Black));
break;
case ObjectType.Gear:
_object = new Sprite(ContentWrapper.PolygonTexture(PolygonUtils.CreateGear(radius, 10, 100f, 1f), ContentWrapper.Orange, ContentWrapper.Grey));
break;
}
}
public override void Initialize()
{
Vector2 trans = new Vector2();
_polygons = new List <Vertices>();
_polygons.Add(PolygonUtils.CreateGear(5f, 10, 0f, 6f));
_polygons.Add(PolygonUtils.CreateGear(4f, 15, 100f, 3f));
trans.X = 0f;
trans.Y = 8f;
_polygons[0].Translate(ref trans);
_polygons[1].Translate(ref trans);
_polygons.Add(PolygonUtils.CreateGear(5f, 10, 50f, 5f));
trans.X = 22f;
trans.Y = 17f;
_polygons[2].Translate(ref trans);
AddRectangle(5, 10);
AddCircle(5, 32);
trans.X = -20f;
trans.Y = 8f;
_polygons[3].Translate(ref trans);
trans.Y = 20f;
_polygons[4].Translate(ref trans);
_polygons.Add(PolygonUtils.CreateRectangle(5f, 5f));
_polygons.Add(PolygonUtils.CreateRectangle(5f, 5f));
trans.X = 0f;
trans.Y = 27f;
_polygons[5].Translate(ref trans);
_polygons[6].Translate(ref trans);
_polygons.Add(PolygonUtils.CreateRectangle(5f, 5f));
_polygons.Add(PolygonUtils.CreateRectangle(5f, 5f));
trans.Y = 40f;
_polygons[7].Translate(ref trans);
trans.X = 5f;
_polygons[8].Translate(ref trans);
_polygons.Add(PolygonUtils.CreateRectangle(5f, 5f));
_polygons.Add(PolygonUtils.CreateRectangle(5f, 5f));
trans.Y = 35f;
trans.X = 20f;
_polygons[9].Translate(ref trans);
trans.Y = 45f;
trans.X = 25f;
_polygons[10].Translate(ref trans);
_subject = _polygons[5];
_clip = _polygons[6];
base.Initialize();
}
public static Body CreateGear(World world, float radius, int numberOfTeeth, float tipPercentage, float toothHeight, float density, Vector2 position = new Vector2(), float rotation = 0, BodyType bodyType = BodyType.Static, object userData = null)
{
Vertices gearPolygon = PolygonUtils.CreateGear(radius, numberOfTeeth, tipPercentage, toothHeight);
//Gears can in some cases be convex
if (!gearPolygon.IsConvex())
{
//Decompose the gear:
List <Vertices> list = Triangulate.ConvexPartition(gearPolygon, TriangulationAlgorithm.Earclip);
return(CreateCompoundPolygon(world, list, density, position, rotation, bodyType, userData));
}
return(CreatePolygon(world, gearPolygon, density, position, rotation, bodyType, userData));
}