}//Update
/// <summary>
/// Cast Horizontal ray with respect to "rayLength" sign. SKINWIDTH is added
/// to the rayLength here.
/// </summary>
/// <param name="rayLength">Length of the ray and the direction (based of
/// its sign) to cast. </param>
/// <param name="positionIndex">Position of the ray relative to Number of
/// rays count set in Props.</param>
/// <returns>Casted ray meta data.</returns>
public RaycastMeta CastHorizontalRay(float rayLength, int positionIndex) {
float directionX = Mathf.Sign(rayLength);
rayLength = Mathf.Abs(rayLength) + SKINWIDTH;
Vector2 rayOrigin = (directionX == -1) ? rayOrigins.bottomLeft : rayOrigins.bottomRight;
Vector2 direction = Vector2.right * directionX;
rayOrigin += Vector2.up * (raySpacing.x * positionIndex);
RaycastHit2D hit = Physics2D.Raycast(rayOrigin, direction,
rayLength, this.Props.CollisionMask);
RaycastMeta meta = new RaycastMeta(rayOrigin, direction, hit, rayLength, positionIndex);
#if UNITY_EDITOR
if (this.DebugProps.On) {
if (positionIndex == 0)
Debug.DrawRay(meta.Origin, meta.FullDir, DebugProps.First);
else
Debug.DrawRay(meta.Origin, meta.FullDir, DebugProps.NoHit);
if (hit)
Debug.DrawRay(meta.Origin, meta.FullDir, DebugProps.Hit);
}
#endif
return meta;
}//Raycast
}//Update
public virtual void MovePassangers() {
if (_cd == null)
return;
Vector3 deltaMovement = this.Velocity;
float direction = 1f;
deltaMovement.y = direction * 0.3f;
_cd.UpdateRayOrigin();
_cd.HorizontalCollisions(ref deltaMovement);
_cd.VerticalCollisions(ref deltaMovement);
for (int i = 0; i < _cd.VerticalRayMeta.Length; i++) {
RaycastMeta meta = _cd.VerticalRayMeta[i];
if(!meta.Ray)
continue;
float moveX = this.Velocity.x;
float moveY = this.Velocity.y;
if (Mathf.Sign(this.Velocity.y) > 0)
moveY = Velocity.y - (meta.Ray.distance - 0.055f) * direction;
//var mvmnt = meta.Ray.collider.GetComponent<MovementControls>();
//if (mvmnt == null)
// continue;
//var player = meta.Ray.collider.GetComponent<Player>();
//player.IsOnMovingPlatform = true;
//meta.Ray.collider.transform.Translate(new Vector3(moveX, moveY));
//mvmnt.SetVelocity(new Vector2(moveX, moveY));
}//for
}//MovePassangers
}//Raycast
/// <summary>
/// Cast Vertically (down/up) ray with respect to "rayLength" sign. SKINWIDTH is added
/// to the rayLength here.
/// </summary>
/// <param name="rayLength">Length of the ray and the direction (based of
/// its sign) to cast. </param>
/// <param name="positionIndex">Position of the ray relative to Number of
/// rays count set in Props.</param>
/// <returns>Casted ray meta data.</returns>
public RaycastMeta CastVerticalRay(float rayLength, int positionIndex) {
float directionY = Mathf.Sign(rayLength); //current movement direction (up/down)
rayLength = Mathf.Abs(rayLength) + SKINWIDTH;
Vector2 rayOrigin = (directionY == -1) ? rayOrigins.bottomLeft : rayOrigins.topLeft;
Vector2 direction = Vector2.up * directionY;
rayOrigin += Vector2.right * (raySpacing.y * positionIndex);
RaycastHit2D hit = Physics2D.Raycast(rayOrigin, direction,
rayLength, this.Props.CollisionMask);
//To ignore raycast hits on itself, unselect the "Queries Start In Colliders"
//at the "Project Settings -> Physics 2D
RaycastMeta meta = new RaycastMeta(rayOrigin, direction, hit, rayLength, positionIndex);
#if UNITY_EDITOR
if (this.DebugProps.On) {
if (positionIndex == 0)
Debug.DrawRay(meta.Origin, meta.FullDir, DebugProps.First);
else
Debug.DrawRay(meta.Origin, meta.FullDir, DebugProps.NoHit);
if (hit)
Debug.DrawRay(meta.Origin, meta.FullDir, DebugProps.Hit);
}
#endif
return meta;
}//Raycast
}//RaycastMeta
public void Set(RaycastMeta meta) {
this.Origin = meta.Origin;
this.Direction = meta.Direction;
this.Ray = meta.Ray;
this.Length = meta.Length;
this.Angle = meta.Angle;
this.Index = meta.Index;
}
}//HorizontalCollisions
/// <summary>
/// Raycast vertically with respect to deltaMovement.
/// This should be called every frame.
/// </summary>
public void VerticalCollisions(ref Vector3 deltaMovement) {
float directionY = Mathf.Sign(deltaMovement.y); //current movement direction (up/down)
if (this.VerticalRayMeta == null ||
this.VerticalRayMeta.Length != this.Props.VerticalRays)
this.VerticalRayMeta = new RaycastMeta[this.Props.VerticalRays];
int numOfHits = 0;
for (int i = 0; i < this.Props.VerticalRays; i++) {
RaycastMeta meta = this.CastVerticalRay(deltaMovement.y, i);
//Update Global ray Meta.
if(this.VerticalRayMeta[i] == null)
this.VerticalRayMeta[i] = new RaycastMeta();
this.VerticalRayMeta[i].Set(meta);
//if (meta.Ray && meta.Ray.collider.gameObject.GetHashCode() == this.gameObject.GetHashCode()) {
// Debug.Log(meta.Ray.collider.gameObject.name);
// continue;
//}
//---- NO HIT ----
if (!meta.Ray) {
if(i == 0) IsFallingThrough = false;
continue;
}
if (this.Props.IsIgnoreTag(meta.HitTag)) continue;
bool isPlatformTag = this.Props.IsPlatformTag(meta.HitTag);
numOfHits++;
if (IsFallingThrough && isPlatformTag) continue;
else IsFallingThrough = false;
if (directionY > 0)
if (!IsFallingThrough && isPlatformTag) continue;
deltaMovement.y = (meta.Ray.distance - SKINWIDTH) * directionY;
Below = directionY == -1;
Above = directionY == 1;
}//for
if(numOfHits == 0)
IsFallingThrough = false;
}//VerticalCollisions
}//Raycast
/// <summary>
/// Raycast horizontally (left/right) with respect to deltaMovement.
/// This should be called every frame.
/// </summary>
public void HorizontalCollisions(ref Vector3 deltaMovement) {
float directionX = Mathf.Sign(deltaMovement.x);
if (this.HorizontalRayMeta == null ||
this.HorizontalRayMeta.Length != this.Props.HorizontalRays)
this.HorizontalRayMeta = new RaycastMeta[this.Props.HorizontalRays];
for (int i = 0; i < this.Props.HorizontalRays; i++) {
RaycastMeta meta = this.CastHorizontalRay(deltaMovement.x, i);
if(this.HorizontalRayMeta[i] == null)
this.HorizontalRayMeta[i] = new RaycastMeta();
this.HorizontalRayMeta[i].Set(meta);
//---- NO HIT ----
if (!meta.Ray) continue;
//Ignore rayhit for Platforms or Ignorable tags.
if(this.Props.IsIgnoreTag(meta.HitTag)) continue;
if(this.Props.IsPlatformTag(meta.HitTag)) continue;
float slopeAngle = Vector2.Angle(meta.Ray.normal, Vector2.up);
this.HorizontalRayMeta[i].Angle = slopeAngle;
if (i == 0 && slopeAngle <= this.Props.ClimbingSlope) {
float distanceToSlopeStart = 0;
if (slopeAngle != slopeAngleLastFrame) {
distanceToSlopeStart = meta.Ray.distance - SKINWIDTH;
deltaMovement.x -= distanceToSlopeStart * directionX;
}
ClimbSlope(ref deltaMovement, slopeAngle);
deltaMovement.x += distanceToSlopeStart * directionX;
}//if
if (!IsOnSlope || slopeAngle > this.Props.ClimbingSlope) {
deltaMovement.x = (meta.Ray.distance - SKINWIDTH) * directionX;
if (IsOnSlope)
deltaMovement.y = Mathf.Tan(currentSlopeAngle * Mathf.Deg2Rad) * Mathf.Abs(deltaMovement.x);
Left = directionX == -1;
Right = directionX == 1;
}//if
this.HorizontalRayMeta[i].Length = meta.Ray.distance;
}//for
}//HorizontalCollisions
}//SnapToLadder
public bool GetActorGrounded(float distance=0) {
if (this.Actor == null)
return false;
if (this.Actor.CollisionDetectionCmp == null)
return false;
CollisionDetection cd = this.Actor.CollisionDetectionCmp;
bool isGrounded = cd.Below || cd.IsOnSlope;
//Already grounded? No need to cast rays then...
if(isGrounded)
return true;
if(distance != 0) {
RaycastMeta rayMeta = cd.CastVerticalRay(distance, cd.Props.VerticalRays / 2);
return rayMeta.Ray;
}
return isGrounded;
}//CheckGround
}//Update
public bool IsOnPlatform()
{
//RaycastMeta[] rays = _raycastGround.OnRaycast();
RaycastMeta rays = _cd.CastVerticalRay(-1, 2);
int index = (int)(rays.Length / 2);
if (rays == null || !rays.Ray)
{
return(false);
}
GameObject hittedObj = rays.Ray.transform.gameObject;
if (hittedObj == null)
{
return(false);
}
return(hittedObj.tag.ToLower().Equals(PlatformTag.ToLower()));
}//IsOnPlatform
}//InitComponents
/// <summary>
/// Cast multiple rays from center of the sphere to its radius + SkinWidth.
/// TODO: some useful docs here.
/// </summary>
public virtual RaycastMeta[] OnRaycast()
{
Vector2 start = RayOrigin + Offset; //Bottom right corner
float length = RayLength;
this.RayHits = new RaycastMeta[NumberOfRays];
bIsOnSlope = false;
for (int i = 0; i < this.NumberOfRays; i++)
{
Vector2 rayOrigin = start;
rayOrigin -= RayDirectionPlacement * (GetRaySpacing() * i);
var ray = Physics2D.Raycast(rayOrigin, RayDirection, length, CollisionLayer);
//Saving Ray meta for future use outside of this for loop.
//Not important for actualy circular raycasting.
RaycastMeta rayMeta = new RaycastMeta {
Origin = start,
Direction = RayDirection,
Length = ray.distance,
Index = i,
Ray = ray,
Angle = Vector2.SignedAngle(ray.normal, Vector2.up)
};
this.RayHits[i] = rayMeta;
Color debugColor = DebugColors.NoHit;
if (DebugColors.On)
{
if (i == 0)
{
debugColor = DebugColors.First;
}
if (i == NumberOfRays - 1)
{
debugColor = DebugColors.Last;
}
}
//No soup for this ray.
if (!ray || ray.collider.gameObject == this.gameObject)
{
this.RayHits[i].Angle = 0;
if (DebugColors.On)
{
Debug.DrawRay(rayOrigin, RayDirection * length, debugColor);
}
continue;
}//if not ray
if (!bIsOnSlope && rayMeta.Angle != 0)
{
if (i < this.NumberOfRays / 2)
{
bIsOnSlope = true;
}
//numOfRaysOnSlope++;
}
if (DebugColors.On)
{
Debug.DrawRay(rayOrigin, RayDirection * ray.distance, DebugColors.Hit); //use red to indicate collision
}
if (ray.collider.gameObject != this.gameObject)
{
HasCollision = !bIsOnSlope;
}
}//for
return(this.RayHits);
}//CircularRaycast