private void Collision_BeanTerrain(object sender, MaterialCollisionArgs e)
{
try
{
// Find the affected bean
Body beanBody = e.GetBody(_material_Bean);
Bean bean = _beans.Where(o => o.PhysicsBody.Equals(beanBody)).FirstOrDefault();
// Inform it
if (bean != null)
{
bean.CollidedGround();
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), this.Title, MessageBoxButton.OK, MessageBoxImage.Error);
}
}
private void Collision_BotFood(object sender, MaterialCollisionArgs e)
{
try
{
Body shipBody = e.GetBody(_material_Bot);
Body mineralBody = e.GetBody(_material_Food);
Swimbot bot = _bots.Where(o => o.PhysicsBody.Equals(shipBody)).FirstOrDefault();
if (bot == null)
{
return;
}
Mineral mineral = _map.GetItem<Mineral>(mineralBody);
if (mineral == null)
{
return;
}
bot.CollidedMineral(mineral);
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), this.Title, MessageBoxButton.OK, MessageBoxImage.Error);
}
}
private void Collision_AsteroidProjectile(object sender, MaterialCollisionArgs e)
{
try
{
Body asteroidBody = e.GetBody(_material_Asteroid);
Body projectileBody = e.GetBody(_material_Projectile);
if (asteroidBody == null || projectileBody == null)
{
return;
}
//NOTE: this.Map_ItemRemoved will dispose the projectile once the map removes it, so get these stats now
double projectileMass = projectileBody.Mass;
Point3D projectilePos = projectileBody.Position;
Vector3D projectileVelocity = projectileBody.Velocity;
// Find and remove the projectile
Projectile projectile = _map.RemoveItem<Projectile>(projectileBody);
if (projectile == null)
{
// Already gone
return;
}
// Damage the asteroid
Asteroid asteroid = _map.GetItem<Asteroid>(asteroidBody);
if (asteroid != null)
{
asteroid.TakeDamage_Projectile(projectileMass, projectilePos, projectileVelocity);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), this.Title, MessageBoxButton.OK, MessageBoxImage.Error);
}
}
private void Collision_AsteroidSwarmBot(object sender, MaterialCollisionArgs e)
{
try
{
Body asteroidBody = e.GetBody(_material_Asteroid);
Body botBody = e.GetBody(_material_SwarmBot);
if (asteroidBody == null || botBody == null)
{
return;
}
//NOTE: this.Map_ItemRemoved will dispose the swarmbot once the map removes it, so get these stats now
double botMass = botBody.Mass;
Point3D botPos = botBody.Position;
Vector3D botVelocity = botBody.Velocity;
// Damage the bot
SwarmBot1b bot = _map.GetItem<SwarmBot1b>(botBody);
if (bot != null)
{
bot.TakeDamage(asteroidBody.Velocity);
}
else
{
// Already gone
return;
}
// Damage the asteroid
Asteroid asteroid = _map.GetItem<Asteroid>(asteroidBody);
if (asteroid != null)
{
//TODO: When swarmbots can grow and specialize, remove this mass/vel boost
asteroid.TakeDamage_Projectile(botMass * 5, botPos, botVelocity * 3);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), this.Title, MessageBoxButton.OK, MessageBoxImage.Error);
}
}
private void Collision_ShipAsteroid(object sender, MaterialCollisionArgs e)
{
try
{
Body asteroidBody = e.GetBody(_material_Asteroid);
Body shipBody = e.GetBody(_material_Ship);
if (asteroidBody == null || shipBody == null)
{
return;
}
Asteroid asteroid = _map.GetItem<Asteroid>(asteroidBody);
Bot ship = _map.GetItem<Bot>(shipBody);
if (asteroid == null || ship == null)
{
return;
}
// Cache some props
double asteroidMass = asteroidBody.Mass;
//Point3D asteroidPos = asteroidBody.Position;
//Vector3D asteroidVelocity = asteroidBody.Velocity;
double shipMass = shipBody.Mass;
//Point3D shipPos = shipBody.Position;
//Vector3D shipVelocity = shipBody.Velocity;
var collisions = e.Collisions.
Select(o =>
{
Point3D pos; Vector3D norm; double speed;
o.GetContactPositionAndNormalWorld(out pos, out norm, out speed, asteroidBody);
return new { Position = pos, Normal = norm, Speed = speed };
}).
ToArray();
Point3D collisionPos = Math3D.GetCenter(collisions.Select(o => o.Position));
Vector3D collisionVelocity = Math3D.GetAverage(collisions.Select(o => o.Normal)).ToUnit() * collisions.Average(o => o.Speed); // this is relative to the ship. It will need to be reversed for the asteroid
if (collisionVelocity.IsNearZero())
{
return;
}
//var test1 = ship.PositionWorld;
//var test2 = ship.Radius;
//var test3 = asteroid.PositionWorld;
//var test4 = asteroid.Radius;
//var test5 = Math3D.GetAABB(collisions.Select(o => o.Position));
//var test6 = (test5.Item2 - test5.Item1).Length;
// Damage the asteroid
// The asteroid has a hit counter, and breaks up after a few hits. That would need to be removed for this type of hit
//TODO: The asteroid should only take damage if the impact exceeds a threshold
//asteroid.TakeDamage_Other(shipMass, collisionPos, -collisionVelocity); // negative velocity, because the collision velocity is in reference to the ship
// Damage the ship
Point3D posModel = ship.PhysicsBody.PositionFromWorld(collisionPos);
Vector3D velModel = ship.PhysicsBody.DirectionFromWorld(collisionVelocity);
ship.TakeDamage_Collision(asteroid, posModel, velModel, asteroidMass, shipMass);
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), this.Title, MessageBoxButton.OK, MessageBoxImage.Error);
}
}
private void Collision_ShipMineral(object sender, MaterialCollisionArgs e)
{
try
{
Body botBody = e.GetBody(_material_Ship);
Body mineralBody = e.GetBody(_material_Mineral);
Bot bot = _map.GetItem<Bot>(botBody);
if (bot == null)
{
return;
}
// For now, only the player ship can take minerals
if (!(bot is ShipPlayer))
{
return;
}
Mineral mineral = _map.GetItem<Mineral>(mineralBody);
if (mineral == null)
{
return;
}
((ShipPlayer)bot).CollidedMineral(mineral, _world, _material_Mineral, _sharedVisuals);
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), this.Title, MessageBoxButton.OK, MessageBoxImage.Error);
}
}
private void Collision_SpaceStation(object sender, MaterialCollisionArgs e)
{
SpaceStation station = _map.GetItem<SpaceStation>(e.GetBody(_material_SpaceStation));
if (station != null)
{
station.Collided(e);
}
}
private void Collision_Sand(object sender, MaterialCollisionArgs e)
{
// When the sand hits the ship, it is staying alive too long and messing up other sand
Body body = e.GetBody(_material_Sand);
TempBody tempBody = _tempBodies.FirstOrDefault(o => o.PhysicsBody.Equals(body));
if (tempBody != null)
{
_tempBodies.Remove(tempBody);
_tempBodies.Add(new TempBody(tempBody.PhysicsBody, TimeSpan.FromSeconds(1)));
}
}
private void Collision_ProjectileBrick(object sender, MaterialCollisionArgs e)
{
const double MAXIMPULSE = 150;
Body body0 = e.Body0;
Body body1 = e.Body1;
if (body0 == null || body1 == null || body0.MaterialGroupID == _material_ExplodingProjectile || body1.MaterialGroupID == _material_ExplodingProjectile)
{
// Since I'm changing the material to an explosion, this event still gets called several times in a single frame, but the body has changed
// material type and GetBody throws an exception
return;
}
Body projectile = e.GetBody(_material_Projectile);
if (projectile == null)
{
return;
}
#region Light Fuse
if (radProjectilesExplode.IsChecked.Value && !_projectilesLitFuse.ContainsKey(projectile))
{
_projectilesLitFuse.Add(projectile, .01); // seconds
}
else if (radProjectilesImplode.IsChecked.Value && !_projectilesLitFuse.ContainsKey(projectile))
{
_projectilesLitFuse.Add(projectile, .01); // seconds
}
#endregion
#region Paint Red
if (chkColoredImpacts.IsChecked.Value)
{
Body brickBody = e.GetBody(_material_Brick);
if (brickBody != null)
{
BodyMaterial material = _bodyMaterials[brickBody];
foreach (MaterialCollision collision in e.Collisions)
{
if (collision.ContactNormalSpeed > material.MaxImpulse)
{
// This is the biggest force this brick has felt, paint it a shade of red
material.MaxImpulse = collision.ContactNormalSpeed;
byte red = Convert.ToByte(UtilityCore.GetScaledValue_Capped(material.OrigColor.R, 255, 0, MAXIMPULSE, material.MaxImpulse)); // increase red
byte green = Convert.ToByte(UtilityCore.GetScaledValue_Capped(0, material.OrigColor.G, MAXIMPULSE, 0, material.MaxImpulse)); // decrease green and blue
byte blue = Convert.ToByte(UtilityCore.GetScaledValue_Capped(0, material.OrigColor.B, MAXIMPULSE, 0, material.MaxImpulse));
material.Material.Brush = new SolidColorBrush(Color.FromArgb(255, red, green, blue));
}
}
}
}
#endregion
}
