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More accurate and reliable submarine-level collisions, looping OnUse sounds bugfix, new music clips, item sprites removed from limbs when someone else loots the item, Camera.WorldView fix, checking vector.LengthSquared before normalizing to avoid creating a NaN vector

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This commit is contained in:
Regalis
2015-10-04 23:50:46 +03:00
parent 0be4ad4f84
commit f13a48ef52
33 changed files with 342 additions and 217 deletions
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237
Subsurface/Source/Map/SubmarineHull.cs
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@@ -16,7 +16,11 @@ namespace Subsurface
{
class SubmarineBody
{
//structure damage = impact * damageMultiplier
const float DamageMultiplier = 50.0f;
const float Friction = 0.2f, Restitution = 0.0f;
public List<Vector2> HullVertices
{
get;
@@ -30,6 +34,11 @@ namespace Subsurface
private Vector2 speed;
private Vector2 targetPosition;
float mass = 10000.0f;
private Vector2? lastContactPoint;
private VoronoiCell lastContactCell;
public Rectangle Borders
{
@@ -103,7 +112,7 @@ namespace Subsurface
body.SleepingAllowed = false;
body.IgnoreGravity = true;
body.OnCollision += OnCollision;
//body.OnSeparation += OnSeparation;
body.OnSeparation += OnSeparation;
body.UserData = this;
}
@@ -163,7 +172,12 @@ namespace Subsurface
public void Update(float deltaTime)
{
Vector2 translateAmount = speed * deltaTime;
if (body.Position!=Vector2.Zero)
{
UpdateColliding();
}
Vector2 translateAmount = speed * deltaTime;
translateAmount += ConvertUnits.ToDisplayUnits(body.Position) * collisionRigidness;
if (targetPosition != Vector2.Zero && Vector2.Distance(targetPosition, sub.Position) > 50.0f)
@@ -181,14 +195,14 @@ namespace Subsurface
Vector2 totalForce = CalculateBuoyancy();
float dragCoefficient = 0.00001f;
float speedLength = (speed == Vector2.Zero) ? 0.0f : speed.Length();
float drag = speedLength * speedLength * dragCoefficient * mass;
if (speed != Vector2.Zero)
if (speed.LengthSquared() > 0.000001f)
{
totalForce += -Vector2.Normalize(speed) * drag;
float dragCoefficient = 0.00001f;
float speedLength = (speed == Vector2.Zero) ? 0.0f : speed.Length();
float drag = speedLength * speedLength * dragCoefficient * mass;
totalForce += -Vector2.Normalize(speed) * drag;
}
ApplyForce(totalForce);
@@ -215,35 +229,39 @@ namespace Subsurface
float neutralPercentage = 0.07f;
float buoyancy = neutralPercentage - waterPercentage;
float buoyancy = Math.Max(neutralPercentage - waterPercentage, -neutralPercentage*2.0f);
buoyancy *= mass * 30.0f;
return new Vector2(0.0f, buoyancy);
}
float mass = 10000.0f;
public void ApplyForce(Vector2 force)
{
speed += force / mass;
Speed += force / mass;
}
public bool OnCollision(Fixture f1, Fixture f2, Contact contact)
private void UpdateColliding()
{
VoronoiCell cell = f2.Body.UserData as VoronoiCell;
if (cell == null)
{
speed = new Vector2(speed.X * 0.9f, speed.Y * 0.2f);
return true;
}
if (body.Position.LengthSquared()<0.00001f) return;
Vector2 normal = contact.Manifold.LocalNormal;
Vector2 simSpeed = ConvertUnits.ToSimUnits(speed) + body.LinearVelocity;
float impact = Vector2.Dot(simSpeed, normal);
Vector2 normal = Vector2.Normalize(body.Position);
Vector2 simSpeed = ConvertUnits.ToSimUnits(speed);
Vector2 u = Vector2.Dot(simSpeed, -normal) * -normal;
Vector2 w = simSpeed - u;
float impact = Vector2.Dot(simSpeed, -normal);
Vector2 limbForce = normal * impact;
if (impact < 0.0f) return;
Vector2 u = Vector2.Dot(simSpeed, -normal) * normal;
Vector2 w = (simSpeed + u);
speed = ConvertUnits.ToDisplayUnits(w * (1.0f - Friction) + u * Restitution);
if (lastContactPoint == null || lastContactCell==null || impact < 3.0f) return;
AmbientSoundManager.PlayDamageSound(DamageSoundType.StructureBlunt, impact * 10.0f, ConvertUnits.ToDisplayUnits((Vector2)lastContactPoint));
GameMain.GameScreen.Cam.Shake = impact * 2.0f;
Vector2 limbForce = -normal * impact*0.5f;
float length = limbForce.Length();
if (length > 10.0f) limbForce = (limbForce / length) * 10.0f;
@@ -261,66 +279,125 @@ namespace Subsurface
}
}
if (impact >= 1.0f)
{
AmbientSoundManager.PlayDamageSound(DamageSoundType.StructureBlunt, impact * 10.0f, cell.body);
Explosion.RangedStructureDamage(ConvertUnits.ToDisplayUnits((Vector2)lastContactPoint), impact*50.0f, impact*DamageMultiplier);
FarseerPhysics.Common.FixedArray2<Vector2> worldPoints;
contact.GetWorldManifold(out normal, out worldPoints);
//Body wallBody = Submarine.PickBody(
// (Vector2)lastContactPoint - body.Position,
// (Vector2)lastContactPoint + body.Position * 10.0f,
// new List<Body>() { lastContactCell.body });
AmbientSoundManager.PlayDamageSound(DamageSoundType.StructureBlunt, impact * 10.0f, ConvertUnits.ToDisplayUnits(worldPoints[0]));
//if (wallBody == null || wallBody.UserData == null) return;
//var damageable = wallBody.UserData as IDamageable;
//Structure structure = wallBody.UserData as Structure;
GameMain.GameScreen.Cam.Shake = impact * 2.0f;
}
//if (structure == null) return;
//int sectionIndex = structure.FindSectionIndex(ConvertUnits.ToDisplayUnits(Submarine.LastPickedPosition));
System.Diagnostics.Debug.WriteLine("IMPACT: " + impact + " normal: " + normal + " simspeed: " + simSpeed + " u: " + u + " w: " + w);
if (impact < 3.0f)
{
speed = ConvertUnits.ToDisplayUnits(w * 0.45f - u * 0.25f);
return true;
}
else
{
speed = ConvertUnits.ToDisplayUnits(w * 0.9f + u * 0.5f);
//FixedArray2<Vector2> worldPoints;
//contact.GetWorldManifold(out normal, out worldPoints);
//if (contact.Manifold.PointCount >= 1)
//{
// Vector2 contactPoint = worldPoints[0];
// Body wallBody = Submarine.PickBody(contactPoint, contactPoint + normal, new List<Body>() { cell.body });
// if (wallBody!=null && wallBody.UserData!=null)
// {
// Structure s = wallBody.UserData as Structure;
// }
//}
foreach (GraphEdge ge in cell.edges)
{
Body wallBody = Submarine.PickBody(
ConvertUnits.ToSimUnits(ge.point1 + GameMain.GameSession.Level.Position + normal),
ConvertUnits.ToSimUnits(ge.point2 + GameMain.GameSession.Level.Position + normal), new List<Body>() { cell.body });
if (wallBody == null || wallBody.UserData == null) continue;
Structure structure = wallBody.UserData as Structure;
if (structure == null) continue;
structure.AddDamage(
structure.FindSectionIndex(ConvertUnits.ToDisplayUnits(Submarine.LastPickedPosition)), impact*50.0f);
}
}
collisionRigidness = 0.8f;
return true;
//for (int i = sectionIndex - (int)(impact / 5.0f); i < sectionIndex + (int)(impact / 5.0f); i++)
//{
// structure.AddDamage(i, impact * DamageMultiplier);
//}
}
//public void OnSeparation(Fixture f1, Fixture f2)
//{
// collidingCell = null;
//}
public bool OnCollision(Fixture f1, Fixture f2, Contact contact)
{
VoronoiCell cell = f2.Body.UserData as VoronoiCell;
if (cell == null)
{
lastContactCell = null;
lastContactPoint = null;
return true;
}
lastContactCell = cell;
Vector2 normal;
FarseerPhysics.Common.FixedArray2<Vector2> worldPoints;
contact.GetWorldManifold(out normal, out worldPoints);
lastContactPoint = worldPoints[0];
return true;
//Vector2 normal = contact.Manifold.LocalNormal;
//Vector2 simSpeed = ConvertUnits.ToSimUnits(speed);
//float impact = Vector2.Dot(-simSpeed, normal);
////Vector2 u = Vector2.Dot(simSpeed, -normal) * -normal;
////Vector2 w = simSpeed - u;
//Vector2 limbForce = normal * impact;
////float length = limbForce.Length();
////if (length > 10.0f) limbForce = (limbForce / length) * 10.0f;
////foreach (Character c in Character.CharacterList)
////{
//// if (c.AnimController.CurrentHull == null) continue;
//// if (impact > 2.0f) c.AnimController.StunTimer = (impact - 2.0f) * 0.1f;
//// foreach (Limb limb in c.AnimController.Limbs)
//// {
//// if (c.AnimController.LowestLimb == limb) continue;
//// limb.body.ApplyLinearImpulse(limb.Mass * limbForce);
//// }
////}
//System.Diagnostics.Debug.WriteLine("IMPACT: " + impact + " normal: " + normal + " simspeed: " + simSpeed);
//if (impact > 1.0f)
//{
// contact.GetWorldManifold(out normal, out worldPoints);
// lastContactPoint = worldPoints[0];
// AmbientSoundManager.PlayDamageSound(DamageSoundType.StructureBlunt, impact * 10.0f, ConvertUnits.ToDisplayUnits(worldPoints[0]));
// GameMain.GameScreen.Cam.Shake = impact * 2.0f;
// //speed = ConvertUnits.ToDisplayUnits(w * 0.9f + u * 0.5f);
// //FixedArray2<Vector2> worldPoints;
// //contact.GetWorldManifold(out normal, out worldPoints);
// //if (contact.Manifold.PointCount >= 1)
// //{
// // Vector2 contactPoint = worldPoints[0];
// // Body wallBody = Submarine.PickBody(contactPoint, contactPoint + normal, new List<Body>() { cell.body });
// // if (wallBody!=null && wallBody.UserData!=null)
// // {
// // Structure s = wallBody.UserData as Structure;
// // }
// //}
// //foreach (GraphEdge ge in cell.edges)
// //{
// // Body wallBody = Submarine.PickBody(
// // ConvertUnits.ToSimUnits(ge.point1 + GameMain.GameSession.Level.Position + normal),
// // ConvertUnits.ToSimUnits(ge.point2 + GameMain.GameSession.Level.Position + normal), new List<Body>() { cell.body });
// // if (wallBody == null || wallBody.UserData == null) continue;
// // Structure structure = wallBody.UserData as Structure;
// // if (structure == null) continue;
// // structure.AddDamage(
// // structure.FindSectionIndex(ConvertUnits.ToDisplayUnits(Submarine.LastPickedPosition)), impact*50.0f);
// //}
//}
//collisionRigidness = 0.8f;
//return true;
}
public void OnSeparation(Fixture f1, Fixture f2)
{
lastContactPoint = null;
}
}
}