func NewPhysicsCircle(static bool) *Physics {
var body *chipmunk.Body
shape := chipmunk.NewCircle(vect.Vector_Zero, 1)
if static {
body = chipmunk.NewBodyStatic()
} else {
body = chipmunk.NewBody(1, shape.ShapeClass.Moment(1))
}
p := &Physics{BaseComponent: NewComponent(), Body: body, Box: shape.GetAsBox(), Shape: shape}
body.AddShape(shape)
return p
}
func addBall() {
x := rand.Intn(350-115) + 115
ball := chipmunk.NewCircle(vect.Vector_Zero, float32(ballRadius))
ball.SetElasticity(0.95)
body := chipmunk.NewBody(vect.Float(ballMass), ball.Moment(float32(ballMass)))
body.SetPosition(vect.Vect{vect.Float(x), 600.0})
body.SetAngle(vect.Float(rand.Float32() * 2 * math.Pi))
body.AddShape(ball)
space.AddBody(body)
balls = append(balls, ball)
}
func NewPhysics(static bool, space *chipmunk.Space) *Physics {
var body *chipmunk.Body
box := chipmunk.NewBox(vect.Vect{0, 0}, vect.Float(1), vect.Float(1))
if static {
body = chipmunk.NewBodyStatic()
} else {
body = chipmunk.NewBody(1, box.Moment(1))
}
p := &Physics{BaseComponent: NewComponent(), Space: space, Body: body, Box: box.GetAsBox(), Shape: box}
body.AddShape(box)
return p
}
func NewPhysicsShape(static bool, space *chipmunk.Space, shape *chipmunk.Shape) *Physics {
var body *chipmunk.Body
if static {
body = chipmunk.NewBodyStatic()
//s := chipmunk.NewBox(vect.Vect{-100, -10}, 200, 5)
//body.AddShape(s)
//p := &Physics{BaseComponent: NewComponent(), Space: space, Body: body, Box: s.GetAsBox(), Shape: s}
//return p
} else {
body = chipmunk.NewBody(1, shape.ShapeClass.Moment(1))
}
body.AddShape(shape)
p := &Physics{BaseComponent: NewComponent(), Space: space, Body: body, Box: shape.GetAsBox(), Shape: shape}
return p
}
func NewPhysicsShapes(static bool, shapes []*chipmunk.Shape) *Physics {
var body *chipmunk.Body
if static {
body = chipmunk.NewBodyStatic()
} else {
moment := vect.Float(0)
for _, shape := range shapes {
moment += shape.Moment(1)
}
body = chipmunk.NewBody(1, moment)
}
p := &Physics{BaseComponent: NewComponent(), Body: body, Box: nil, Shape: nil}
for _, shape := range shapes {
body.AddShape(shape)
}
return p
}