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can now land on slopes without falling through them

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master
Jordan Orelli 5 years ago
parent fbc72df7b4
commit c8d69484e6
2 changed files with 359 additions and 101 deletions
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349
Assets/Scenes/MainLevel.unity
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111
Assets/Scripts/MoveController.cs
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@ -11,21 +11,30 @@ public class MoveController : MonoBehaviour
public int verticalRayCount = 4; public int verticalRayCount = 4;
public CollisionInfo collisions; public CollisionInfo collisions;
public float maxClimbAngle = 60f; public float maxClimbAngle = 60f;
public float maxDescendAngle = 75f;
new private BoxCollider collider; new private BoxCollider collider;
private RaycastOrigins raycastOrigins; private RaycastOrigins raycastOrigins;
private float horizontalRaySpacing; private float horizontalRaySpacing;
private float verticalRaySpacing; private float verticalRaySpacing;
private int frameCount;
void Start() { void Start() {
collider = GetComponent<BoxCollider>(); collider = GetComponent<BoxCollider>();
CalculateRaySpacing(); CalculateRaySpacing();
frameCount = 0;
} }
public void Move(Vector3 velocity) { public void Move(Vector3 velocity) {
frameCount++;
UpdateRaycastOrigins(); UpdateRaycastOrigins();
collisions.Reset(); collisions.Reset();
collisions.velocityOld = velocity;
// if (velocity.y < 0) {
// DescendSlope(ref velocity);
// }
if (velocity.x != 0) { if (velocity.x != 0) {
HorizontalCollisions(ref velocity); HorizontalCollisions(ref velocity);
} }
@ -36,33 +45,25 @@ public class MoveController : MonoBehaviour
} }
private void HorizontalCollisions(ref Vector3 velocity) { private void HorizontalCollisions(ref Vector3 velocity) {
float directionX = Mathf.Sign(velocity.x); // -1 for left, 1 for right float directionX = Mathf.Sign(velocity.x);
float rayLength = Mathf.Abs(velocity.x) + skinWidth; float rayLength = Mathf.Abs(velocity.x) + skinWidth;
for (int i = 0; i < horizontalRayCount; i++) { for (int i = 0; i < horizontalRayCount; i++) {
Vector3 rayOrigin = (directionX == -1) ? raycastOrigins.bottomLeft : raycastOrigins.bottomRight; Vector3 rayOrigin = (directionX == -1) ? raycastOrigins.bottomLeft : raycastOrigins.bottomRight;
rayOrigin += Vector3.up * (horizontalRaySpacing * i); rayOrigin += Vector3.up * (horizontalRaySpacing * i);
RaycastHit[] hits = Physics.RaycastAll(rayOrigin, Vector3.right * directionX, rayLength, collisionMask); RaycastHit hit;
if (hits.Length == 0) { if (!Physics.Raycast(rayOrigin, Vector3.right * directionX, out hit, rayLength, collisionMask)) {
Debug.DrawRay(rayOrigin + velocity, Vector3.right * directionX * rayLength, Color.green); Debug.DrawRay(rayOrigin + velocity, Vector3.right * directionX * rayLength, Color.green);
continue; continue;
} }
RaycastHit hit = hits[0];
for (int h = 1; h < hits.Length; h++) {
if (hits[h].distance < hit.distance) {
hit = hits[h];
}
}
if (hit.collider.gameObject.CompareTag("Fatal")) {
Destroy(gameObject);
return;
}
float slopeAngle = Vector3.Angle(hit.normal, Vector3.up); float slopeAngle = Vector3.Angle(hit.normal, Vector3.up);
if (i == 0 && slopeAngle <= maxClimbAngle) { if (i == 0 && slopeAngle <= maxClimbAngle) {
// if (collisions.descendingSlope) {
// collisions.descendingSlope = false;
// velocity = collisions.velocityOld;
// }
float distanceToSlopeStart = 0f; float distanceToSlopeStart = 0f;
if (slopeAngle!= collisions.slopeAngleOld) { if (slopeAngle!= collisions.slopeAngleOld) {
distanceToSlopeStart = hit.distance - skinWidth; distanceToSlopeStart = hit.distance - skinWidth;
@ -99,21 +100,15 @@ public class MoveController : MonoBehaviour
for (int i = 0; i < verticalRayCount; i++) { for (int i = 0; i < verticalRayCount; i++) {
Vector3 rayOrigin = (directionY == -1) ? raycastOrigins.bottomLeft : raycastOrigins.topLeft; Vector3 rayOrigin = (directionY == -1) ? raycastOrigins.bottomLeft : raycastOrigins.topLeft;
rayOrigin += Vector3.right * (verticalRaySpacing * i); rayOrigin += Vector3.right * (verticalRaySpacing * i + velocity.x);
RaycastHit[] hits = Physics.RaycastAll(rayOrigin, Vector3.up * directionY, rayLength, collisionMask);
if (hits.Length == 0) { RaycastHit hit;
if (!Physics.Raycast(rayOrigin, Vector3.up * directionY, out hit, rayLength, collisionMask)) {
Debug.DrawRay(rayOrigin + velocity, Vector3.up * directionY * rayLength, Color.green); Debug.DrawRay(rayOrigin + velocity, Vector3.up * directionY * rayLength, Color.green);
continue; continue;
} }
RaycastHit hit = hits[0];
for (int h = 1; h < hits.Length; h++) {
if (hits[h].distance < hit.distance) {
hit = hits[h];
}
}
velocity.y = (hit.distance - skinWidth) * directionY; velocity.y = (hit.distance - skinWidth) * directionY;
// Debug.LogFormat("with RayLength {0} MinHitDist {1} setting velocity.y to {2}", rayLength, hit.distance, velocity.y);
rayLength = hit.distance; rayLength = hit.distance;
if (collisions.climbingSlope) { if (collisions.climbingSlope) {
@ -127,6 +122,21 @@ public class MoveController : MonoBehaviour
collisions.above = true; collisions.above = true;
} }
} }
if (collisions.climbingSlope) {
float directionX = Mathf.Sign(velocity.x);
rayLength = Mathf.Abs(velocity.x) + skinWidth;
Vector3 rayOrigin = (directionY == -1) ? raycastOrigins.bottomLeft : raycastOrigins.bottomRight;
rayOrigin += (Vector3.up * velocity.y);
RaycastHit hit;
if (Physics.Raycast(rayOrigin, Vector3.right * directionX, out hit, rayLength, collisionMask)) {
float slopeAngle = Vector3.Angle(hit.normal, Vector3.up);
if (slopeAngle != collisions.slopeAngle) {
velocity.x = (hit.distance - skinWidth) * directionX;
collisions.slopeAngle = slopeAngle;
}
}
}
} }
private void ClimbSlope(ref Vector3 velocity, float slopeAngle) { private void ClimbSlope(ref Vector3 velocity, float slopeAngle) {
@ -141,6 +151,52 @@ public class MoveController : MonoBehaviour
} }
} }
private void DescendSlope(ref Vector3 velocity) {
bool movingRight = velocity.x > 0;
Vector3 rayOrigin;
if (movingRight) {
rayOrigin = raycastOrigins.bottomLeft;
} else {
rayOrigin = raycastOrigins.bottomRight;
}
Debug.DrawRay(rayOrigin + velocity, Vector3.down * Mathf.Abs(velocity.y), Color.magenta);
RaycastHit hit;
if (!Physics.Raycast(rayOrigin, Vector3.down, out hit, Mathf.Abs(velocity.y)+skinWidth, collisionMask)) {
return;
}
float slopeAngle = Vector3.Angle(hit.normal, Vector3.up);
if (slopeAngle == 0 || slopeAngle > maxDescendAngle) {
return;
}
if (Mathf.Sign(hit.normal.x) != Mathf.Sign(velocity.x)) {
return;
}
Debug.LogFormat("Descending slope at angle: {0}", slopeAngle);
// float directionX = Mathf.Sign(velocity.x);
// Vector3 rayOrigin = (directionX == -1) ? raycastOrigins.bottomRight : raycastOrigins.bottomLeft;
// RaycastHit hit;
// Debug.DrawRay(rayOrigin+velocity, Vector3.down * Mathf.Infinity, Color.green);
// if (Physics.Raycast(rayOrigin, Vector3.down, out hit, Mathf.Infinity, collisionMask)) {
// float slopeAngle = Vector3.Angle(hit.normal, Vector3.up);
// if (slopeAngle != 0 && slopeAngle <= maxDescendAngle) {
// if (Mathf.Sign(hit.normal.x) == directionX) {
// if (hit.distance - skinWidth <= Mathf.Tan(slopeAngle * Mathf.Deg2Rad) * Mathf.Abs(velocity.x)) {
// Debug.LogFormat("Descending slope with angle {0} at hit distance {1}", slopeAngle, hit.distance);
// float moveDistance = Mathf.Abs(velocity.x);
// float descendVelocityY = Mathf.Sin(slopeAngle * Mathf.Deg2Rad) * moveDistance;
// velocity.x = Mathf.Cos(slopeAngle * Mathf.Deg2Rad) * moveDistance * Mathf.Sign(velocity.x);
// velocity.y -= descendVelocityY;
// collisions.slopeAngle = slopeAngle;
// collisions.descendingSlope = true;
// collisions.below = true;
// }
// }
// }
// }
}
void UpdateRaycastOrigins() { void UpdateRaycastOrigins() {
Bounds bounds = collider.bounds; Bounds bounds = collider.bounds;
float depth = (bounds.max.z + bounds.min.z) * 0.5f; float depth = (bounds.max.z + bounds.min.z) * 0.5f;
@ -178,8 +234,10 @@ public class MoveController : MonoBehaviour
public bool left; public bool left;
public bool right; public bool right;
public bool climbingSlope; public bool climbingSlope;
public bool descendingSlope;
public float slopeAngle; public float slopeAngle;
public float slopeAngleOld; public float slopeAngleOld;
public Vector3 velocityOld;
public void Reset() { public void Reset() {
above = false; above = false;
@ -187,6 +245,7 @@ public class MoveController : MonoBehaviour
left = false; left = false;
right = false; right = false;
climbingSlope = false; climbingSlope = false;
descendingSlope = false;
slopeAngleOld = slopeAngle; slopeAngleOld = slopeAngle;
slopeAngle = 0f; slopeAngle = 0f;
} }

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