private ConvexHull2Test()
{
_pointCloud1 = new Vertices(PointCount);
for (int i = 0; i < PointCount; i++)
{
float x = Rand.RandomFloat(-10, 10);
float y = Rand.RandomFloat(-10, 10);
_pointCloud1.Add(new Vector2(x, y));
}
_pointCloud2 = new Vertices(_pointCloud1);
_pointCloud3 = new Vertices(_pointCloud1);
//Melkman DOES NOT work on point clouds. It only works on simple polygons.
_pointCloud1.Translate(new Vector2(-20, 30));
_melkman = Melkman.GetConvexHull(_pointCloud1);
//Giftwrap works on point clouds
_pointCloud2.Translate(new Vector2(20, 30));
_giftWrap = GiftWrap.GetConvexHull(_pointCloud2);
//Chain hull also works on point clouds
_pointCloud3.Translate(new Vector2(20, 10));
_chainHull = ChainHull.GetConvexHull(_pointCloud3);
}
private void canvas_MouseUp(object sender, MouseEventArgs e)
{
List <Vertices> _verts;
Vertices vrts = new Vertices();
for (int i = 0; i < v.Count; i++)
{
vrts.Add(new Vector2((float)v[i].x, (float)v[i].y));
}
try
{
_verts = FarseerPhysics.Common.Decomposition.Triangulate.ConvexPartition(vrts, FarseerPhysics.Common.Decomposition.TriangulationAlgorithm.Bayazit);
if (_verts.Count == 0)
{
Vertices hull = Melkman.GetConvexHull(vrts);
v.Clear();
for (int i = 0; i < hull.Count; i++)
{
v.Add(new Vector(hull[i].X, hull[i].Y));
}
}
}
catch
{
try
{
Vertices hull = Melkman.GetConvexHull(vrts);
v.Clear();
for (int i = 0; i < hull.Count; i++)
{
v.Add(new Vector(hull[i].X, hull[i].Y));
}
}
catch
{
v.Clear();
}
}
}
public static Fixture CreatePolygon(Texture2D texture, Vector2 scaling, BodyType bodyType, Vector2 position, float density)
{
uint[] data = new uint[texture.Width * texture.Height];
texture.GetData(data);
Vertices vertices = PolygonTools.CreatePolygon(data, texture.Width, texture.Height, true);
var polygonOffset = new Vector2(-texture.Width / 2, -texture.Height / 2);
vertices.Translate(ref polygonOffset);
Vector2 scale = new Vector2(0.01f, 0.01f) * scaling;
vertices.Scale(ref scale);
Vertices temp = Melkman.GetConvexHull(vertices);
Fixture fixture = FixtureFactory.CreatePolygon(Level.Physics, temp, density);
fixture.Body.BodyType = bodyType;
fixture.Body.Position = ToMeter(position);
return(fixture);
}
// Anything that is a fixture must have an object type for collision logic purposes
/*public enum ObjectTypes
* {
* Bot = 1,
* Weapon = 2, // Since weapons will be fixtures, they too need an object type.
* Bullet = 3,
* Wall = 4
* }*/
public SPRWorld(World world, int currentLevel)
{
int botHalfWidth = 31; // Half the bot's width (e.g. the distance from the centroid to the edge)
m_World = world;
this.m_Entities = new SortedDictionary <ulong, Entity>();
// Make polygons out of weapons and anything that needs collision.
// NOTE: Stores the convex hull for each item, since collision detection
// relies upon these verticies being convex polygons.
String[] toPreload = new String[] { "Gun", "Axe", "Shield" };
foreach (String texture in toPreload)
{
Texture2D a = TextureStatic.Get(texture);
uint[] data = new uint[a.Width * a.Height];
a.GetData <uint>(data);
Vertices v = Melkman.GetConvexHull(PolygonTools.CreatePolygon(data, a.Width, a.Height));
Vector2 scale = new Vector2(Settings.MetersPerPixel, Settings.MetersPerPixel);
v.Scale(ref scale);
if (!computedSpritePolygons.ContainsKey(texture))
{
computedSpritePolygons.Add(texture, v);
}
}
//walls
Vector2[] outer = { new Vector2(0, 0) * Settings.MetersPerPixel, new Vector2(0, 1920) * Settings.MetersPerPixel, new Vector2(1080, 1920) * Settings.MetersPerPixel, new Vector2(1080, 0) * Settings.MetersPerPixel };
Vector2[] inner = { new Vector2(200, 200) * Settings.MetersPerPixel, new Vector2(200, 1720) * Settings.MetersPerPixel, new Vector2(880, 1720) * Settings.MetersPerPixel, new Vector2(880, 200) * Settings.MetersPerPixel };
FixtureFactory.CreateRectangle(world, 1920 * Settings.MetersPerPixel, 200 * Settings.MetersPerPixel, 1f, new Vector2(960, 100) * Settings.MetersPerPixel, "Wall").Body.BodyType = BodyType.Static;
FixtureFactory.CreateRectangle(world, 200 * Settings.MetersPerPixel, 1080 * Settings.MetersPerPixel, 1f, new Vector2(100, 540) * Settings.MetersPerPixel, "Wall").Body.BodyType = BodyType.Static;
FixtureFactory.CreateRectangle(world, 1920 * Settings.MetersPerPixel, 200 * Settings.MetersPerPixel, 1f, new Vector2(960, 980) * Settings.MetersPerPixel, "Wall").Body.BodyType = BodyType.Static;
FixtureFactory.CreateRectangle(world, 200 * Settings.MetersPerPixel, 1080 * Settings.MetersPerPixel, 1f, new Vector2(1820, 540) * Settings.MetersPerPixel, "Wall").Body.BodyType = BodyType.Static;
Vector2[] edges = { new Vector2(-botHalfWidth, -botHalfWidth) * Settings.MetersPerPixel, new Vector2(botHalfWidth, -botHalfWidth) * Settings.MetersPerPixel, new Vector2(botHalfWidth, botHalfWidth) * Settings.MetersPerPixel, new Vector2(-botHalfWidth, botHalfWidth) * Settings.MetersPerPixel };
this.battle = new Battle(this, botHalfWidth, world, currentLevel);
GameWorld.audio.SongPlay("sprbattle");
}
