public static RopeCastingSegment NewSeg(RopeCasting mother, Vector2 start, RopeCastingSegment end, Collider2D col, float bendsCross)
{
var gObj = new GameObject("RopeSegment");
gObj.transform.parent = mother.transform;
gObj.layer = 12;
var nxt = gObj.AddComponent<RopeCastingSegment>();
nxt.mother = mother;
nxt.end = end;
nxt.col = col;
nxt.startOffset = nxt.col.transform.InverseTransformPoint(start);
nxt.bendsCross = bendsCross;
nxt.eCol = gObj.AddComponent<EdgeCollider2D>();
nxt.eCol.isTrigger = true;
nxt.IgnoreCollisions ();
nxt.isEnd = false;
// TODO Hacked to always add rigidbody so that it will detect when moving platforms hits it.
// TODO RopeCast instead when you break instead? !?!?!? its not actualy because of moving platforms!!!
if (col == null || end.isEnd || true) { // in this case this is the first or second to last segment
// TODO add a seperate signifier for col == null
var rig = gObj.AddComponent<Rigidbody2D> ();
rig.gravityScale = 0; // TODO fix this hack to make it collide ? (it will not detect collision if there is no non kinematic rigidbodies involved).
rig.collisionDetectionMode = CollisionDetectionMode2D.Continuous;
}
// Add Linerenderer
var lr = gObj.AddComponent<LineRenderer> ();
lr.SetVertexCount (2);
lr.SetWidth (mother.ropeWidth, mother.ropeWidth);
lr.material = mother.ropeMaterial;
nxt.lr = lr;
nxt.UpdateECol();
return nxt;
}
// Destroy the bend at the end of this segment eg. the bend with a corner in end.start
private void DestroyBend()
{
// I assume i dont have to touch: mother col eCol start isEnd
bendsCross = end.bendsCross;
var oldEnd = end;
end = end.end;
Destroy(oldEnd.gameObject);
// If we just deleted the segment with a rigidbody we need to add it to ourself
if (end.isEnd && rigidbody2D == null) {
var rig = gameObject.AddComponent<Rigidbody2D> ();
rig.gravityScale = 0; // TODO This hack again...
}
UpdateECol();
// TODO Check if any of the other ends are good?
}
// Finds a corner based on the hits and splits the segment by that corner.
// Should always be followed by RopeCast() and end.RopeCast() to check if ropes are ok.
// hit1 and hit2 should always be on the same collider!
// hit1 and hit2 should always be in order based on their order on the rope
private bool SplitSegment(RaycastHit2D hit1, RaycastHit2D hit2)
{
if (hit1.collider != hit2.collider) {
Debug.LogError("SplitSegment should only be called with the same collider");
}
var ang = Vector2.Angle(hit1.normal, hit2.normal);
// Find which normal is the first in a clockwise rotation so that the angle is the smallest
// and use this to calculate a vector that is exactly between the two normals.
var cross = Vector3.Cross(hit1.normal, hit2.normal);
Vector3 dir = Quaternion.AngleAxis(ang/2, new Vector3(0,0,-1)) * ((cross.z < 0) ? hit1.normal : hit2.normal);
// Calculate the corner of the collider by intersect the rays from the points with vectors perpendicular to the normals.
Vector3 p1 = hit1.point;
Vector3 p2 = hit2.point;
Vector3 v1 = Quaternion.AngleAxis(90,new Vector3(0,0,-1)) * hit1.normal;
Vector3 v2 = Quaternion.AngleAxis(90,new Vector3(0,0,-1)) * hit2.normal;
Vector3 corner = Math2D.LineIntersectionPoint(p1, p1+v1, p2, p2+v2);
// Calculate a point outside the collider with a given offset
var ropePoint = corner + (dir.normalized * mother.ropeOffset);
// Check if ropePoint is inside a collider and move it out in that case
var lc = Physics2D.Linecast (ropePoint, ropePoint, 1 << 9); // We do not check for players as that might break it. // TODO WHY THE F**K DOES THIS MAKE A STACKOVERFLOW???
int i = 1;
while (lc.collider != null) {
// TODO dont do shit and let the player die?
if (i > 4) return false;
Debug.LogError("RopePoint was set inside a collider: Moving it out nr of time: " + i);
ropePoint = corner + (dir.normalized * mother.ropeOffset * i++ * 2);
lc = Physics2D.Linecast (ropePoint, ropePoint, 1 << 9); // We do not check for players as that might break it.
}
end = NewSeg(mother, ropePoint, end, hit1.collider, bendsCross);
// TODO We could do end.CheckCross() Here if its needed.
// The new segment is now in control of the line this last hat so it inherits bendcross while this takes the new cross
// This assumes that hit1 is before hit2 on the rope
bendsCross = cross.z;
UpdateECol();
return true;
}
private void InitializeSegments()
{
if (isInitialized) {
Debug.LogError("Rope was already initialized");
return;
}
if (gameObject.GetComponentsInChildren<RopeCastingSegment> ().Length != 0) {
Debug.LogError("InitializeSegments was called while it still has segments.");
DestroySegments();
}
// TODO Fix hack to find the real player object (Which doen't roll)
var p1c = p1.GetComponent<PlayerController> ();
var p2c = p2.GetComponent<PlayerController> ();
var p1col = p1c != null ? p1c.roller.collider2D : p1.collider2D;
var p2col = p2c != null ? p2c.roller.collider2D : p2.collider2D;
var lastEnd = RopeCastingSegment.NewEndSeg (this, p2.transform.position, p2col); //TODO change the child order? We could do this to order the update order if needed.
ropePath = RopeCastingSegment.NewSeg (this, p1.transform.position, lastEnd, p1col, 0);
crossColliders = null;
GetCrossColliders ();
isInitialized = true;
}
