Mf::Scalar d = 50.0;
// spring:
- //current.force += -15.0 * x - 1.5 * current.velocity;
- force = -20.0 * (mag - d) * (x / mag) - 2.0 * state.velocity;
+ //mState.force += -15.0 * x - 1.5 * mState.velocity;
+ force = SCALAR(-10.0) * (mag - d) * (x / mag) - 2.0 * state.velocity;
return force;
}
Mf::Vector2 location;
};
-struct WindResistenceForce
+struct ResistanceForce
{
+ explicit ResistanceForce(Mf::Scalar scale = 1.0) :
+ k(scale) {}
+
const Mf::Vector2& operator () (const Mf::LinearState<2>& state)
{
- force = -2.0 * state.velocity;
+ force = -k * state.velocity;
return force;
}
private:
- Mf::Vector2 force;
+ Mf::Vector2 force;
+ Mf::Scalar k;
};
tilemap(name),
animation(name)
{
- current.init();
+ mState.init();
- current.mass = 1.0;
- current.inverseMass = 1.0 / current.mass;
+ mState.mass = 1.0;
+ mState.inverseMass = 1.0 / mState.mass;
- // gravity
- current.force = Mf::Vector2(0.0, 000.0);
- current.forces.push_back(SpringForce(Mf::Vector2(500.0, 200.0)));
- current.forces.push_back(WindResistenceForce());
- current.forces.push_back(Mf::LinearState<2>::GravityForce(-2000.0));
+ // forces
+ mState.force = Mf::Vector2(0.0, 0.0);
+ //mState.forces.push_back(SpringForce(Mf::Vector2(500.0, 200.0)));
+ mState.forces.push_back(ResistanceForce(2.0));
+ //mState.forces.push_back(Mf::LinearState<2>::GravityForce(-100.0));
// starting position
- current.position = Mf::Vector2(64.0, 64.0);
- current.momentum = Mf::Vector2(0.0, 0.0);
- current.recalculate();
+ mState.position = Mf::Vector2(64.0, 64.0);
+ mState.momentum = Mf::Vector2(0.0, 0.0);
+ mState.recalculate();
- previous = current;
+ mPrevState = mState;
}
void Character::update(Mf::Scalar t, Mf::Scalar dt)
{
- previous = current;
-
- //Mf::Vector2 x = current.position - Mf::Vector2(500.0, 200.0);
- //Mf::Scalar mag = x.length();
- //Mf::Scalar d = 50.0;
+ Mf::RigidBody2::update(t, dt); // update physics
- //// gravity:
- //current.force = Mf::Vector2(0.0, -2000.0);
- //// spring:
- ////current.force += -15.0 * x - 1.5 * current.velocity;
- //current.force += -20.0 * (mag - d) * (x / mag) - 2.0 * current.velocity;
- //// internal:
- //current.force += userForce;
- //current.recalculate();
- //std::cout << "force: " << current.momentum << std::endl;
-
- //Mf::euler<State,Derivative>(current, t, dt);
+ animation.update(t, dt);
- //current.force = Mf::Vector2(0.0, -2000.0);
- current.force = userForce;
- current.integrate(t, dt);
+ Mf::Vector3 center(mState.position[0], mState.position[1], z);
+ Mf::Vector3 a(mState.position[0] - 16.0, mState.position[1] - 16.0, z);
+ Mf::Vector3 b(mState.position[0] + 16.0, mState.position[1] + 16.0, z);
- animation.update(t, dt);
+ mAabb.init(a, b);
+ mSphere.init(center, a);
}
void Character::draw(Mf::Scalar alpha) const
{
- Mf::Vector2 position = cml::lerp(previous.position, current.position, alpha);
+ //Mf::Vector2 position = cml::lerp(mPrevState.position, mState.position, alpha);
+ Mf::State2 state = getState(alpha);
+ Mf::Vector2 position = state.position;
//glColor3f(1.0f, 1.0f, 1.0f);
tilemap.bind();
Tilemap::Orientation orientation = Tilemap::NORMAL;
- if (current.velocity[0] < 0.0) orientation = Tilemap::REVERSE;
+ if (mState.velocity[0] < 0.0) orientation = Tilemap::REVERSE;
Mf::Scalar coords[8];
tilemap.getTileCoords(frame, coords, orientation);
}
+int Character::getOctant(const Mf::Aabb& aabb) const
+{
+ int octantNum = -1;
+
+ Mf::Plane::Halfspace halfspace;
+
+ Mf::Plane xy = aabb.getPlaneXY();
+ halfspace = xy.intersects(mSphere);
+ if (halfspace == Mf::Plane::INTERSECT)
+ {
+ halfspace = xy.intersects(mAabb);
+ }
+
+ if (halfspace == Mf::Plane::POSITIVE)
+ {
+ Mf::Plane xz = aabb.getPlaneXZ();
+ halfspace = xz.intersects(mSphere);
+ if (halfspace == Mf::Plane::INTERSECT)
+ {
+ halfspace = xz.intersects(mAabb);
+ }
+
+ if (halfspace == Mf::Plane::POSITIVE)
+ {
+ Mf::Plane yz = aabb.getPlaneYZ();
+ halfspace = yz.intersects(mSphere);
+ if (halfspace == Mf::Plane::INTERSECT)
+ {
+ halfspace = yz.intersects(mAabb);
+ }
+
+ if (halfspace == Mf::Plane::POSITIVE)
+ {
+ octantNum = 2;
+ }
+ else if (halfspace == Mf::Plane::NEGATIVE)
+ {
+ octantNum = 3;
+ }
+ }
+ else if (halfspace == Mf::Plane::NEGATIVE)
+ {
+ Mf::Plane yz = aabb.getPlaneYZ();
+ halfspace = yz.intersects(mSphere);
+ if (halfspace == Mf::Plane::INTERSECT)
+ {
+ halfspace = yz.intersects(mAabb);
+ }
+
+ if (halfspace == Mf::Plane::POSITIVE)
+ {
+ octantNum = 1;
+ }
+ else if (halfspace == Mf::Plane::NEGATIVE)
+ {
+ octantNum = 0;
+ }
+ }
+ }
+ else if (halfspace == Mf::Plane::NEGATIVE)
+ {
+ Mf::Plane xz = aabb.getPlaneXZ();
+ halfspace = xz.intersects(mSphere);
+ if (halfspace == Mf::Plane::INTERSECT)
+ {
+ halfspace = xz.intersects(mAabb);
+ }
+
+ if (halfspace == Mf::Plane::POSITIVE)
+ {
+ Mf::Plane yz = aabb.getPlaneYZ();
+ halfspace = yz.intersects(mSphere);
+ if (halfspace == Mf::Plane::INTERSECT)
+ {
+ halfspace = yz.intersects(mAabb);
+ }
+
+ if (halfspace == Mf::Plane::POSITIVE)
+ {
+ octantNum = 6;
+ }
+ else if (halfspace == Mf::Plane::NEGATIVE)
+ {
+ octantNum = 7;
+ }
+ }
+ else if (halfspace == Mf::Plane::NEGATIVE)
+ {
+ Mf::Plane yz = aabb.getPlaneYZ();
+ halfspace = yz.intersects(mSphere);
+ if (halfspace == Mf::Plane::INTERSECT)
+ {
+ halfspace = yz.intersects(mAabb);
+ }
+
+ if (halfspace == Mf::Plane::POSITIVE)
+ {
+ octantNum = 5;
+ }
+ else if (halfspace == Mf::Plane::NEGATIVE)
+ {
+ octantNum = 4;
+ }
+ }
+ }
+
+ return octantNum;
+}
+
+
/** vim: set ts=4 sw=4 tw=80: *************************************************/
projects / chaz / yoink / blobdiff