void PlaceNew(float x1, float y1)
{
//Create a new piece
float xSlope = FindSlope(ax, bx, 1);
float ySlope = FindSlope(ay, by, 1);
SolveQuadratic(xSlope, x, x1, out ax, out bx, out cx);
SolveQuadratic(ySlope, y, y1, out ay, out by, out cy);
TrackSegment newPiece = Instantiate(segment, transform);
newPiece.SetData(x1, y1, ax, bx, cx, ay, by, cy);
pieceHistory.Push(newPiece);
//Find segment locations along the path and construct a mesh and colliders
Mesh mesh = new Mesh();
newPiece.GetComponent <MeshFilter>().mesh = mesh;
Vector3[] vertices = new Vector3[segmentCount * 8 + 8];
int[] triangles = new int[segmentCount * 48];
EdgeCollider2D[] segmentColliders = newPiece.GetComponents <EdgeCollider2D>();
segmentColliders[0].edgeRadius = wallWidth;
segmentColliders[1].edgeRadius = wallWidth;
Vector2[] leftColliderPoints = new Vector2[segmentCount + 1];
Vector2[] rightColliderPoints = new Vector2[segmentCount + 1];
int i = 0;
//First iteration
//Left side
FindLeftEdges(x, y, xSlope, ySlope, out Vector2 collider, out Vector3 outerWall, out Vector3 innerWall);
leftColliderPoints[0] = collider;
vertices[0] = outerWall - new Vector3(0, 0, 2 * wallWidth);
vertices[1] = innerWall - new Vector3(0, 0, 2 * wallWidth);
vertices[2] = innerWall;
vertices[3] = outerWall;
//Right side
FindRightEdges(x, y, xSlope, ySlope, out collider, out outerWall, out innerWall);
rightColliderPoints[0] = collider;
vertices[4] = outerWall - new Vector3(0, 0, 2 * wallWidth);
vertices[5] = innerWall - new Vector3(0, 0, 2 * wallWidth);
vertices[6] = innerWall;
vertices[7] = outerWall;
//Subsequent iterations
for (float t = 0, wallInterval = 1f / segmentCount; i < segmentCount; i++)
{
int i8 = i * 8;
int i48 = i8 * 6;
t += wallInterval;
//Debug.DrawLine(new Vector3(x, y), new Vector3((ax * t + bx) * t + cx, (ay * t + by) * t + cy), Color.red);
x = (ax * t + bx) * t + cx;
y = (ay * t + by) * t + cy;
//Find wall and collider points
xSlope = FindSlope(ax, bx, t);
ySlope = FindSlope(ay, by, t);
//Left side
FindLeftEdges(x, y, xSlope, ySlope, out collider, out outerWall, out innerWall);
leftColliderPoints[i + 1] = collider;
vertices[i8 + 8] = outerWall - new Vector3(0, 0, 2 * wallWidth);
vertices[i8 + 9] = innerWall - new Vector3(0, 0, 2 * wallWidth);
vertices[i8 + 10] = innerWall;
vertices[i8 + 11] = outerWall;
int[] indices = new int[] { 0, 8, 9, 0, 9, 1, 1, 9, 10, 1, 10, 2, 3, 10, 11, 3, 2, 10, 0, 11, 8, 0, 3, 11, 13, 12, 4, 5, 13, 4, 14, 13, 5, 6, 14, 5, 15, 14, 7, 14, 6, 7, 12, 15, 4, 15, 7, 4 };
for (int index = 0; index < 24; index++)
{
triangles[i48 + index] = i8 + indices[index];
}
//Right side
FindRightEdges(x, y, xSlope, ySlope, out collider, out outerWall, out innerWall);
rightColliderPoints[i + 1] = collider;
vertices[i8 + 12] = outerWall - new Vector3(0, 0, 2 * wallWidth);
vertices[i8 + 13] = innerWall - new Vector3(0, 0, 2 * wallWidth);
vertices[i8 + 14] = innerWall;
vertices[i8 + 15] = outerWall;
for (int index = 24; index < 48; index++)
{
triangles[i48 + index] = i8 + indices[index];
}
//Add checkpoints
Checkpoint cp = Instantiate(checkpoint, newPiece.transform);
EdgeCollider2D cpCollider = cp.GetComponent <EdgeCollider2D>();
cpCollider.edgeRadius = checkpointWidth;
cpCollider.points = new Vector2[] { leftColliderPoints[i + 1], rightColliderPoints[i + 1] };
cp.order = checkpointCounter++;
}
//Update last values
segmentColliders[0].points = leftColliderPoints;
segmentColliders[1].points = rightColliderPoints;
mesh.vertices = vertices;
mesh.triangles = triangles;
mesh.RecalculateNormals();
mesh.RecalculateBounds();
x = x1;
y = y1;
}
