/// <summary>
/// Handles when another Entity collides into us. Not synonymous CollideInto since the
/// <paramref name="collider"/> Entity is the one who collided into us. For example, if the
/// two entities in question were a moving Character and a stationary wall, this Entity would be
/// the Wall and <paramref name="collider"/> would be the Character.
/// </summary>
/// <param name="collider">Entity that collided into us.</param>
/// <param name="displacement">Displacement between the two Entities.</param>
public override void CollideFrom(Entity collider, SFML.Graphics.Vector2 displacement)
{
// When a character touches this, teleport the character to the destination
Character character = collider as Character;
if (character == null)
return;
// Only let users use teleports
if (character is NPC)
return;
// Teleport to a new map
if (DestinationMap > 0)
{
if (character.Map.ID != DestinationMap)
{
var newMap = character.World.GetMap(DestinationMap);
if (newMap == null)
{
const string errmsg = "Failed to teleport Character `{0}` - Invalid DestMap `{1}`.";
Debug.Fail(string.Format(errmsg, character, this));
if (log.IsErrorEnabled)
log.ErrorFormat(errmsg, character, this);
return;
}
character.Teleport(newMap, Destination);
}
}
// Teleport the CharacterEntity to our predefined location
character.Position = Destination;
}
static IEnumerable<Entity> CreateEntities(int amount, Vector2 minPos, Vector2 maxPos)
{
var ret = new Entity[amount];
for (var i = 0; i < amount; i++)
{
ret[i] = new TestEntity { Position = RandomHelper.NextVector2(minPos, maxPos) };
}
return ret;
}
/// <summary>
/// Draws an Entity.
/// </summary>
/// <param name="sb"><see cref="ISpriteBatch"/> to draw to.</param>
/// <param name="camera">The <see cref="ICamera2D"/> that describes the current view.</param>
/// <param name="entity">Entity to draw.</param>
public static void Draw(ISpriteBatch sb, ICamera2D camera, Entity entity)
{
WallEntityBase wallEntity;
TeleportEntity teleportEntity;
// Check for a different entity type
if ((wallEntity = entity as WallEntityBase) != null)
Draw(sb, camera, wallEntity);
else if ((teleportEntity = entity as TeleportEntity) != null)
Draw(sb, camera, teleportEntity);
else
{
// Draw a normal entity using the CollisionBox
Draw(sb, entity, _entityColor);
}
}
/// <summary>
/// Activates the DamageText.
/// </summary>
/// <param name="damage">Damage value to display.</param>
/// <param name="entity">Entity the damage was done to.</param>
/// <param name="currTime">Current time.</param>
public void Activate(int damage, Entity entity, TickCount currTime)
{
if (entity == null)
{
Debug.Fail("entity is null.");
return;
}
// Set the starting values
_alpha = 255;
_pos = entity.Position;
_lastUpdate = currTime;
_text = damage.ToString();
// Get a random velocity
_velocity = new Vector2(-1.0f + (float)_random.NextDouble() * 2.0f, -2.0f - (float)_random.NextDouble() * 0.25f);
}
static IEnumerable<SpatialAggregate> GetSpatials(out Entity someEntity)
{
var aEntities = CreateEntities(64, new Vector2(32), SpatialSize - new Vector2(32));
var bEntities = CreateEntities(64, new Vector2(32), SpatialSize - new Vector2(32));
var cEntities = CreateEntities(64, new Vector2(32), SpatialSize - new Vector2(32));
someEntity = aEntities.First();
var a = new LinearSpatialCollection();
a.SetAreaSize(SpatialSize);
a.Add(aEntities);
var b = new DynamicGridSpatialCollection();
b.SetAreaSize(SpatialSize);
b.Add(bEntities);
var c = new DynamicGridSpatialCollection();
c.SetAreaSize(SpatialSize);
c.Add(cEntities);
return new SpatialAggregate[] { new SpatialAggregate(new ISpatialCollection[] { a, b, c }) };
}
/// <summary>
/// Handles collision against other entities.
/// </summary>
/// <param name="collideWith">Entity the character collided with.</param>
/// <param name="displacement">Displacement between the character and entity.</param>
public override void CollideInto(Entity collideWith, Vector2 displacement)
{
}
/// <summary>
/// Gets a <see cref="Rectangle"/> that describes all of the potential area that
/// a ranged attack can reach.
/// </summary>
/// <param name="c">The <see cref="Entity"/> that is attacking.</param>
/// <param name="range">The range of the attack.</param>
/// <returns>A <see cref="Rectangle"/> that describes all of the potential area that
/// a ranged attack can reach.</returns>
public static Rectangle GetRangedAttackArea(Entity c, ushort range)
{
return c.ToRectangle().Inflate(range);
}
/// <summary>
/// Gets a <see cref="Rectangle"/> that describes all of the potential area that
/// a ranged attack can reach.
/// </summary>
/// <param name="c">The <see cref="Entity"/> that is attacking.</param>
/// <param name="range">The range of the attack.</param>
/// <returns>A <see cref="Rectangle"/> that describes all of the potential area that
/// a ranged attack can reach.</returns>
public static Rectangle GetRangedAttackArea(Entity c, ushort range)
{
var vrange = new Vector2(range);
var min = c.Position - vrange;
var max = c.Max + vrange;
return new Rectangle((int)min.X, (int)min.Y, (int)max.X, (int)max.Y);
}
/// <summary>
/// Creates a new <see cref="DamageText"/> and places it into the pool.
/// </summary>
/// <param name="damage">Damage value.</param>
/// <param name="entity"><see cref="Entity"/> that was damaged.</param>
/// <param name="currTime">Current time.</param>
public void Create(int damage, Entity entity, TickCount currTime)
{
var obj = _pool.Acquire();
obj.Activate(damage, entity, currTime);
}
/// <summary>
/// Initializes a new instance of the <see cref="GameChatBubble"/> class.
/// </summary>
/// <param name="parent">The parent <see cref="Control"/>.</param>
/// <param name="owner">The <see cref="Entity"/> that this <see cref="ChatBubble"/> is for.</param>
/// <param name="text">The text to display.</param>
public GameChatBubble(Control parent, Entity owner, string text) : base(parent, owner, text)
{
}
/// <summary>
/// Handles collision for when this wall is a wall.
/// </summary>
/// <param name="map">The map that the <see cref="WallEntityBase"/> is on.</param>
/// <param name="other">The <see cref="Entity"/> that collided into this <see cref="WallEntityBase"/>.</param>
/// <param name="displacement">The minimum transitional displacement to move the <paramref name="other"/>
/// to make it no longer overlap this wall.</param>
void HandleCollideIntoWall(IMap map, Entity other, Vector2 displacement)
{
var displaced = false;
#if !TOPDOWN
// Allow entities to walk up very small inclines. Makes no sense in top-down, so its used in sidescroller only.
// Check if we have a displacement just on the X axis
if (displacement.Y == 0)
{
// Check how far the "other" is from being on top of "this"
var distFromThis = other.Max.Y - Position.Y;
// If they are not that far away from being on top of "this", then instead of displacing them horizontally away
// from us, pop them up on top of us, effectively "stepping" up
if (distFromThis > 0 && distFromThis < _maxWallStepUpHeight)
{
var horizontalOffset = (int)distFromThis + 1;
var otherRect = other.ToRectangle();
otherRect.Y -= horizontalOffset;
// Make sure that if we move them up on top of us, that they will not be colliding with any walls. If they will
// be colliding with any walls, do NOT let them up here
if (!map.Spatial.Contains<WallEntityBase>(otherRect, x => !x.IsPlatform))
{
other.Move(new Vector2(0, -horizontalOffset));
displaced = true;
}
}
}
#endif
// Move the other entity away from the wall using the MTD
if (!displaced)
other.Move(displacement);
// Check for vertical collision
if (displacement.Y != 0)
{
if (other.Velocity.Y >= 0 && displacement.Y < 0)
{
// Collision from falling (land on feet)
other.SetVelocity(new Vector2(other.Velocity.X, 0.0f));
other.StandingOn = this;
}
else if (other.Velocity.Y < 0 && displacement.Y > 0)
{
// Collision from rising (hit head)
other.SetVelocity(new Vector2(other.Velocity.X, 0.0f));
}
}
}
/// <summary>
/// Handles collision for when this wall is a platform.
/// </summary>
/// <param name="other">The <see cref="Entity"/> that collided into this <see cref="WallEntityBase"/>.</param>
/// <param name="displacement">The minimum transitional displacement to move the <paramref name="other"/>
/// to make it no longer overlap this wall.</param>
void HandleCollideIntoPlatform(Entity other, Vector2 displacement)
{
if (other.Velocity.Y <= 0 || displacement.Y >= 0 ||
((other.LastPosition.Y + other.Size.Y) > Position.Y + _platformYPositionLeniency))
return;
// Move the other entity away from the wall
displacement.X = 0;
other.Move(displacement);
// Collision from falling (land on feet)
other.SetVelocity(new Vector2(other.Velocity.X, 0.0f));
other.StandingOn = this;
}
/// <summary>
/// Performs the collision handling for an <see cref="Entity"/> colliding into this <see cref="WallEntityBase"/>.
/// </summary>
/// <param name="map">The map that the <see cref="WallEntityBase"/> is on.</param>
/// <param name="other">The <see cref="Entity"/> that collided into this <see cref="WallEntityBase"/>.</param>
/// <param name="displacement">The minimum transitional displacement to move the <paramref name="other"/>
/// to make it no longer overlap this wall.</param>
public void HandleCollideInto(IMap map, Entity other, Vector2 displacement)
{
Debug.Assert(map != null);
Debug.Assert(other != null);
if (IsPlatform)
HandleCollideIntoPlatform(other, displacement);
else
HandleCollideIntoWall(map, other, displacement);
}
/// <summary>
/// Handles when another Entity collides into us. Not synonymous CollideInto since the
/// <paramref name="collider"/> Entity is the one who collided into us. For example, if the
/// two entities in question were a moving Character and a stationary wall, this Entity would be
/// the Wall and <paramref name="collider"/> would be the Character.
/// </summary>
/// <param name="collider">Entity that collided into us.</param>
/// <param name="displacement">Displacement between the two Entities.</param>
public override void CollideFrom(Entity collider, SFML.Graphics.Vector2 displacement)
{
// When a character touches this, teleport the character to the destination
User character = collider as User;
if (character == null)
return;
// Teleport to a new map
if (DestinationMap > 0)
{
if (character.Map.ID != DestinationMap)
{
var newMap = character.World.GetMap(DestinationMap);
if (newMap == null)
{
const string errmsg = "Failed to teleport Character `{0}` - Invalid DestMap `{1}`.";
Debug.Fail(string.Format(errmsg, character, this));
if (log.IsErrorEnabled)
log.ErrorFormat(errmsg, character, this);
return;
}
// Teleport the CharacterEntity to our predefined location
character.Teleport(newMap, Destination);
character.Position = Destination;
}
}
// Teleport to an instanced map
else if (DestinationMapInstance > 0)
{
// Check for a valid map
var newMapInstance = character.World.GetMap(DestinationMapInstance);
if (newMapInstance == null)
{
const string errmsg = "Failed to teleport Character `{0}` - Invalid DestMap Instance `{1}`.";
Debug.Fail(string.Format(errmsg, character, this));
if (log.IsErrorEnabled)
log.ErrorFormat(errmsg, character, this);
return;
}
// Try to create the map
MapInstance instance;
try
{
instance = new MapInstance(newMapInstance.ID, character.World);
}
catch (System.Exception ex)
{
string errmsg = "Failed to create instance: " + ex;
Debug.Fail(errmsg);
if (log.IsErrorEnabled)
log.ErrorFormat(errmsg);
return;
}
// Check if the map placement is valid
if (instance.IsValidPlacementPosition(Destination, character.Size))
{
// Add the user to the map
character.Teleport(instance, Destination);
character.Position = Destination;
}
else
{
string errmsg = "Failed to create instance: Not a valid map placement.";
Debug.Fail(errmsg);
if (log.IsErrorEnabled)
log.ErrorFormat(errmsg);
return;
}
// Does this entity also teleport group members?
if (TeleportGroupMembers)
{
// Check if the user is in a group
if (character.Group == null)
return;
if (!character.Group.Members.IsEmpty())
{
// If yes, teleport those users too
foreach (var groupMember in character.Group.Members.OfType<User>())
{
groupMember.Teleport(instance, Destination);
groupMember.Position = Destination;
}
}
}
}
}
public static void Test(ActionDisplay actionDisplay, IMap map, Entity source, Entity target)
{
i = 50;
}
