def colHandler(ship, contact):
pos = ship.getPos()
elasticity = 2.5
#mass1 = ship.getMass()
#mass2 = collider.getMass()
vel1 = ship.getVel()
normal = tupleNormalize(tupleSegment(pos, contact))
force = (scaleTuple(normal,
-elasticity * (1 / 2.) * dotProduct(vel1, normal)))
ship.applyForce(force)
ship.setPos(addTuples(ship.getPos(), scaleTuple(normal, -.1)))
ship.getCollisions().remove(contact)
def limitVelocity(self):
shipVel = self.getVel()
newVelScalar = tupleLength(shipVel)
if newVelScalar > Ship.SPEED_MAX:
newVelScale = Ship.SPEED_MAX / newVelScalar
newVel = scaleTuple(shipVel, newVelScale)
self.setVel(newVel)
def applyGravity(self, ship, deltaTime):
distance = tupleDistance(ship.getPos(),
vec3ToTuple(self.planet.getPos()))
if distance > Game.GRAVITY_DISTANCE: return
gravity = Game.GRAVITY / distance
gravityVector = tupleNormalize(
tupleSegment(ship.getPos(), vec3ToTuple(self.planet.getPos())))
gravityVector = scaleTuple(gravityVector, gravity * deltaTime)
ship.applyForce(gravityVector)
def applyGravity(self, ship, deltaTime):
distance = tupleDistance(
ship.getPos(),
vec3ToTuple( self.planet.getPos() )
)
if distance > Game.GRAVITY_DISTANCE: return
gravity = Game.GRAVITY/distance
gravityVector = tupleNormalize(
tupleSegment(
ship.getPos(),
vec3ToTuple( self.planet.getPos() )
)
)
gravityVector = scaleTuple( gravityVector, gravity * deltaTime)
ship.applyForce( gravityVector )
def testScaleTuple(self): self.failUnlessEqual( scaleTuple( (1, -4), 3 ), (3, -12) )
def testScaleTuple(self):
self.failUnlessEqual(scaleTuple((1, -4), 3), (3, -12))