|
public CreateFixture ( |
||
| def | The fixture definition. | |
| Результат | ||
public Projectile(Player creator, float x, float y, float width, float height)
: base(creator, 0, 0)
{
/* Create New Projectile Body */
BodyDef def = new BodyDef();
def.IsBullet = true;
def.Position = creator.body.GetPosition() + new Vec2(x, y);
projectile = creator.body.GetWorld().CreateBody(def);
/* Create a fixture for the projectile */
PolygonDef fixdef = new PolygonDef();
fixdef.Density = 1.0f;
fixdef.SetAsBox(width / 2, height / 2);
fixdef.Filter.GroupIndex = creator.ID;
fixture = projectile.CreateFixture(fixdef);
fixture.Filter.CategoryBits = 0x0004;
fixture.Filter.MaskBits = 0xFFFF;
/* Made a 2nd fixture, one to observe all collisions */
fixdef.IsSensor = true;
fix2 = projectile.CreateFixture(fixdef);
fix2.UserData = this;
/* Finally, give this projectile some mass */
projectile.SetMassFromShapes();
/* Also, make sure we destroy the projectile when it is time */
this.OnDestroy += Cleanup;
}
public Breakable()
{
// Ground body
{
BodyDef bd = new BodyDef();
Body ground = _world.CreateBody(bd);
PolygonShape shape = new PolygonShape();
shape.SetAsEdge(new Vec2(-40.0f, 0.0f), new Vec2(40.0f, 0.0f));
ground.CreateFixture(shape, 0);
}
// Breakable dynamic body
{
BodyDef bd = new BodyDef();
bd.Position.Set(0.0f, 40.0f);
bd.Angle = 0.25f * Box2DX.Common.Settings.PI;
_body1 = _world.CreateBody(bd);
_shape1.SetAsBox(0.5f, 0.5f, new Vec2(-0.5f, 0.0f), 0.0f);
_piece1 = _body1.CreateFixture(_shape1, 1.0f);
_shape2.SetAsBox(0.5f, 0.5f, new Vec2(0.5f, 0.0f), 0.0f);
_piece2 = _body1.CreateFixture(_shape2, 1.0f);
}
_break = false;
_broke = false;
}
public TheoJansen()
{
_offset.Set(0.0f, 8.0f);
_motorSpeed = 2.0f;
_motorOn = true;
Vec2 pivot = new Vec2(0.0f, 0.8f);
// Ground
{
BodyDef bd = new BodyDef();
Body ground = _world.CreateBody(bd);
PolygonShape shape = new PolygonShape();
shape.SetAsEdge(new Vec2(-50.0f, 0.0f), new Vec2(50.0f, 0.0f));
ground.CreateFixture(shape, 0);
shape.SetAsEdge(new Vec2(-50.0f, 0.0f), new Vec2(-50.0f, 10.0f));
ground.CreateFixture(shape, 0);
shape.SetAsEdge(new Vec2(50.0f, 0.0f), new Vec2(50.0f, 10.0f));
ground.CreateFixture(shape, 0);
}
// Balls
for (int i = 0; i < 40; ++i)
{
CircleShape shape = new CircleShape();
shape._radius = 0.25f;
BodyDef bd = new BodyDef();
bd.Position.Set(-40.0f + 2.0f * i, 0.5f);
Body body = _world.CreateBody(bd);
body.CreateFixture(shape, 1.0f);
}
// Chassis
{
PolygonShape shape = new PolygonShape();
shape.SetAsBox(2.5f, 1.0f);
FixtureDef sd = new FixtureDef();
sd.Density = 1.0f;
sd.Shape = shape;
sd.Filter.GroupIndex = -1;
BodyDef bd = new BodyDef();
bd.Position = pivot + _offset;
_chassis = _world.CreateBody(bd);
_chassis.CreateFixture(sd);
}
{
CircleShape shape = new CircleShape();
shape._radius = 1.6f;
FixtureDef sd = new FixtureDef();
sd.Density = 1.0f;
sd.Shape = shape;
sd.Filter.GroupIndex = -1;
BodyDef bd = new BodyDef();
bd.Position = pivot + _offset;
_wheel = _world.CreateBody(bd);
_wheel.CreateFixture(sd);
}
{
RevoluteJointDef jd = new RevoluteJointDef();
jd.Initialize(_wheel, _chassis, pivot + _offset);
jd.CollideConnected = false;
jd.MotorSpeed = _motorSpeed;
jd.MaxMotorTorque = 400.0f;
jd.EnableMotor = _motorOn;
_motorJoint = (RevoluteJoint)_world.CreateJoint(jd);
}
Vec2 wheelAnchor;
wheelAnchor = pivot + new Vec2(0.0f, -0.8f);
CreateLeg(-1.0f, wheelAnchor);
CreateLeg(1.0f, wheelAnchor);
_wheel.SetTransform(_wheel.GetPosition(), 120.0f * Box2DX.Common.Settings.PI / 180.0f);
CreateLeg(-1.0f, wheelAnchor);
CreateLeg(1.0f, wheelAnchor);
_wheel.SetTransform(_wheel.GetPosition(), -120.0f * Box2DX.Common.Settings.PI / 180.0f);
CreateLeg(-1.0f, wheelAnchor);
CreateLeg(1.0f, wheelAnchor);
}
private void AddBoundaryBlock(Body groundBody, float x, float y, float width, float height)
{
// Define the ground box shape.
PolygonDef groundShapeDef = new PolygonDef();
groundShapeDef.SetAsBox(width/2, height/2, new Vec2(x, y), 0);
// Add the ground shape to the ground body.
Fixture fix = groundBody.CreateFixture(groundShapeDef);
fix.UserData = this;
fix.Filter.CategoryBits = 0x0001;
}
public override void Keyboard(System.Windows.Forms.Keys key)
{
switch (key)
{
case System.Windows.Forms.Keys.B:
if (_bullet != null)
{
_world.DestroyBody(_bullet);
_bullet = null;
}
{
CircleDef sd = new CircleDef();
sd.Density = 20.0f;
sd.Radius = 0.25f;
sd.Restitution = 0.05f;
BodyDef bd = new BodyDef();
bd.IsBullet = true;
bd.Position.Set(-31.0f, 5.0f);
_bullet = _world.CreateBody(bd);
_bullet.CreateFixture(sd);
_bullet.SetMassFromShapes();
_bullet.SetLinearVelocity(new Vec2(400.0f, 0.0f));
}
break;
}
}
private void InitPhysics(BattleArena arena)
{
// Define the dynamic body. We set its position and call the body factory.
BodyDef bodyDef = new BodyDef();
bodyDef.Position.Set(0.0f, 4.0f);
body = arena.world.CreateBody(bodyDef);
// Define another box shape for our dynamic body.
PolygonDef shapeDef = new PolygonDef();
shapeDef.SetAsBox(Pokemon.Width / 2, Pokemon.Height / 2);
// Set the box density to be non-zero, so it will be dynamic.
shapeDef.Density = 1.0f;
// Override the default friction.
//shapeDef.Friction = 2f;
// Add the shape to the body.
Fixture fix = body.CreateFixture(shapeDef);
fix.Density = 1;
fix.Friction = 0.3f;
fix.Restitution = 0.1f;
fix.UserData = this;
fix.Filter.GroupIndex = this.ID;
fix.Filter.CategoryBits = 0x0002;
if (Pokemon.Types.Contains(PokemonType.Ghost)){
fix.Filter.MaskBits = 0xFFFF - 0x0002;
} else {
fix.Filter.MaskBits = 0xFFFF;
}
// Now tell the dynamic body to compute it's mass properties base
// on its shape.
var mass = body.GetMassData();
mass.Mass = Pokemon.Weight;
body.SetMass(mass);
body.SetFixedRotation(true);
}
public void LaunchBomb(Vec2 position, Vec2 velocity)
{
if (_bomb != null)
{
_world.DestroyBody(_bomb);
_bomb = null;
}
BodyDef bd = new BodyDef();
bd.AllowSleep = true;
bd.Position = position;
bd.IsBullet = true;
_bomb = _world.CreateBody(bd);
_bomb.SetLinearVelocity(velocity);
CircleShape circle = new CircleShape();
circle._radius = 0.3f;
FixtureDef fd = new FixtureDef();
fd.Shape = circle;
fd.Density = 20.0f;
fd.Restitution = 0.1f;
Vec2 minV = position - new Vec2(0.3f, 0.3f);
Vec2 maxV = position + new Vec2(0.3f, 0.3f);
AABB aabb = new AABB();
aabb.LowerBound = minV;
aabb.UpperBound = maxV;
_bomb.CreateFixture(fd);
}
public ApplyForce()
{
_world.Gravity = new Vec2(0.0f, 0.0f);
const float k_restitution = 0.4f;
{
BodyDef bd = new BodyDef();
bd.Position.Set(0.0f, 20.0f);
Body ground = _world.CreateBody(bd);
PolygonShape shape = new PolygonShape();
FixtureDef sd = new FixtureDef();
sd.Shape = shape;
sd.Density = 0.0f;
sd.Restitution = k_restitution;
// Left vertical
shape.SetAsEdge(new Vec2(-20.0f, -20.0f), new Vec2(-20.0f, 20.0f));
ground.CreateFixture(sd);
// Right vertical
shape.SetAsEdge(new Vec2(20.0f, -20.0f), new Vec2(20.0f, 20.0f));
ground.CreateFixture(sd);
// Top horizontal
shape.SetAsEdge(new Vec2(-20.0f, 20.0f), new Vec2(20.0f, 20.0f));
ground.CreateFixture(sd);
// Bottom horizontal
shape.SetAsEdge(new Vec2(-20.0f, -20.0f), new Vec2(20.0f, -20.0f));
ground.CreateFixture(sd);
}
{
Transform xf1 = new Transform();
xf1.R.Set(0.3524f * Box2DX.Common.Settings.PI);
xf1.Position = Math.Mul(xf1.R, new Vec2(1.0f, 0.0f));
Vec2[] vertices = new Vec2[3];
vertices[0] = Math.Mul(xf1, new Vec2(-1.0f, 0.0f));
vertices[1] = Math.Mul(xf1, new Vec2(1.0f, 0.0f));
vertices[2] = Math.Mul(xf1, new Vec2(0.0f, 0.5f));
PolygonShape poly1 = new PolygonShape();
poly1.Set(vertices, 3);
FixtureDef sd1 = new FixtureDef();
sd1.Shape = poly1;
sd1.Density = 2.0f;
Transform xf2 = new Transform();
xf2.R.Set(-0.3524f * Box2DX.Common.Settings.PI);
xf2.Position = Math.Mul(xf2.R, new Vec2(-1.0f, 0.0f));
vertices[0] = Math.Mul(xf2, new Vec2(-1.0f, 0.0f));
vertices[1] = Math.Mul(xf2, new Vec2(1.0f, 0.0f));
vertices[2] = Math.Mul(xf2, new Vec2(0.0f, 0.5f));
PolygonShape poly2 = new PolygonShape();
poly2.Set(vertices, 3);
FixtureDef sd2 = new FixtureDef();
sd2.Shape = poly2;
sd2.Density = 2.0f;
BodyDef bd = new BodyDef();
bd.AngularDamping = 2.0f;
bd.LinearDamping = 0.1f;
bd.Position.Set(0.0f, 2.0f);
bd.Angle = Box2DX.Common.Settings.PI;
_body = _world.CreateBody(bd);
_body.CreateFixture(sd1);
_body.CreateFixture(sd2);
}
}
