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射线检测完善

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This commit is contained in:
yhh
2020-08-03 14:45:57 +08:00
parent a4fe9f5798
commit 8e3bcc1257
14 changed files with 814 additions and 53 deletions
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280
source/bin/framework.js
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@@ -111,6 +111,10 @@ Array.prototype.findAll = function (predicate) {
Array.prototype.contains = function (value) {
function contains(array, value) {
for (var i = 0, len = array.length; i < len; i++) {
if (array[i] instanceof egret.HashObject && value instanceof egret.HashObject) {
if (array[i].hashCode == value.hashCode)
return true;
}
if (array[i] == value) {
return true;
}
@@ -749,6 +753,9 @@ var es;
Vector2.prototype.length = function () {
return Math.sqrt((this.x * this.x) + (this.y * this.y));
};
Vector2.prototype.lengthSquared = function () {
return (this.x * this.x) + (this.y * this.y);
};
Vector2.prototype.round = function () {
return new Vector2(Math.round(this.x), Math.round(this.y));
};
@@ -1028,11 +1035,14 @@ var es;
})(es || (es = {}));
var es;
(function (es) {
var Component = (function () {
var Component = (function (_super) {
__extends(Component, _super);
function Component() {
this.updateInterval = 1;
this._enabled = true;
this._updateOrder = 0;
var _this = _super !== null && _super.apply(this, arguments) || this;
_this.updateInterval = 1;
_this._enabled = true;
_this._updateOrder = 0;
return _this;
}
Object.defineProperty(Component.prototype, "transform", {
get: function () {
@@ -1101,7 +1111,7 @@ var es;
return component;
};
return Component;
}());
}(egret.HashObject));
es.Component = Component;
})(es || (es = {}));
var es;
@@ -5635,6 +5645,47 @@ var es;
value.top < this.bottom &&
this.top < value.bottom;
};
Rectangle.prototype.rayIntersects = function (ray) {
var distance = 0;
var maxValue = Number.MAX_VALUE;
if (Math.abs(ray.direction.x) < 1E-06) {
if ((ray.start.x < this.x) || (ray.start.x > this.x + this.width))
return distance;
}
else {
var num11 = 1 / ray.direction.x;
var num8 = (this.x - ray.start.x) * num11;
var num7 = (this.x + this.width - ray.start.x) * num11;
if (num8 > num7) {
var num14 = num8;
num8 = num7;
num7 = num14;
}
distance = Math.max(num8, distance);
maxValue = Math.min(num7, maxValue);
if (distance > maxValue)
return distance;
}
if (Math.abs(ray.direction.y) < 1E-06) {
if ((ray.start.y < this.y) || (ray.start.y > this.y + this.height))
return distance;
}
else {
var num10 = 1 / ray.direction.y;
var num6 = (this.y - ray.start.y) * num10;
var num5 = (this.y + this.height - ray.start.y) * num10;
if (num6 > num5) {
var num13 = num6;
num6 = num5;
num5 = num13;
}
distance = Math.max(num6, distance);
maxValue = Math.max(num5, maxValue);
if (distance > maxValue)
return distance;
}
return distance;
};
Rectangle.prototype.containsRect = function (value) {
return ((((this.x <= value.x) && (value.x < (this.x + this.width))) &&
(this.y <= value.y)) &&
@@ -6023,11 +6074,25 @@ var es;
};
Physics.spatialHashCellSize = 100;
Physics.allLayers = -1;
Physics.raycastsHitTriggers = false;
Physics.raycastsStartInColliders = false;
return Physics;
}());
es.Physics = Physics;
})(es || (es = {}));
var es;
(function (es) {
var Ray2D = (function () {
function Ray2D(position, end) {
this.start = position;
this.end = end;
this.direction = es.Vector2.subtract(this.end, this.start);
}
return Ray2D;
}());
es.Ray2D = Ray2D;
})(es || (es = {}));
var es;
(function (es) {
var RaycastHit = (function () {
function RaycastHit(collider, fraction, distance, point, normal) {
@@ -6047,6 +6112,12 @@ var es;
this.distance = distance;
this.point = point;
};
RaycastHit.prototype.setValuesNonCollider = function (fraction, distance, point, normal) {
this.fraction = fraction;
this.distance = distance;
this.point = point;
this.normal = normal;
};
RaycastHit.prototype.reset = function () {
this.collider = null;
this.fraction = this.distance = 0;
@@ -6238,6 +6309,9 @@ var es;
}
throw new Error("overlaps of Polygon to " + other + " are not supported");
};
Polygon.prototype.collidesWithLine = function (start, end, hit) {
return es.ShapeCollisions.lineToPoly(start, end, this, hit);
};
Polygon.prototype.containsPoint = function (point) {
point = es.Vector2.subtract(point, this.position);
var isInside = false;
@@ -6366,6 +6440,12 @@ var es;
}
throw new Error("Collisions of Circle to " + other + " are not supported");
};
Circle.prototype.collidesWithLine = function (start, end, hit) {
return es.ShapeCollisions.lineToCircle(start, end, this, hit);
};
Circle.prototype.containsPoint = function (point) {
return (es.Vector2.subtract(point, this.position)).lengthSquared() <= this.radius * this.radius;
};
Circle.prototype.pointCollidesWithShape = function (point, result) {
return es.ShapeCollisions.pointToCircle(point, this, result);
};
@@ -6403,6 +6483,41 @@ var es;
es.CollisionResult = CollisionResult;
})(es || (es = {}));
var es;
(function (es) {
var RealtimeCollisions = (function () {
function RealtimeCollisions() {
}
RealtimeCollisions.intersectMovingCircleToBox = function (s, b, movement) {
var e = b.bounds;
e.inflate(s.radius, s.radius);
var ray = new es.Ray2D(es.Vector2.subtract(s.position, movement), s.position);
var time = e.rayIntersects(ray);
if (time > 1)
return time;
var point = es.Vector2.add(ray.start, es.Vector2.add(ray.direction, new es.Vector2(time)));
var u, v = 0;
if (point.x < b.bounds.left)
u |= 1;
if (point.x > b.bounds.right)
v |= 1;
if (point.y < b.bounds.top)
u |= 2;
if (point.y > b.bounds.bottom)
v |= 2;
var m = u + v;
if (m == 3) {
console.log("m == 3. corner " + es.Time.frameCount);
}
if ((m & (m - 1)) == 0) {
return time;
}
return time;
};
return RealtimeCollisions;
}());
es.RealtimeCollisions = RealtimeCollisions;
})(es || (es = {}));
var es;
(function (es) {
var ShapeCollisions = (function () {
function ShapeCollisions() {
@@ -6587,6 +6702,98 @@ var es;
var fullSize = es.Vector2.add(first.bounds.size, second.bounds.size);
return new es.Rectangle(topLeft.x, topLeft.y, fullSize.x, fullSize.y);
};
ShapeCollisions.lineToPoly = function (start, end, polygon, hit) {
var normal = es.Vector2.zero;
var intersectionPoint = es.Vector2.zero;
var fraction = Number.MAX_VALUE;
var hasIntersection = false;
for (var j = polygon.points.length - 1, i = 0; i < polygon.points.length; j = i, i++) {
var edge1 = es.Vector2.add(polygon.position, polygon.points[j]);
var edge2 = es.Vector2.add(polygon.position, polygon.points[i]);
var intersection = es.Vector2.zero;
if (this.lineToLine(edge1, edge2, start, end, intersection)) {
hasIntersection = true;
var distanceFraction = (intersection.x - start.x) / (end.x - start.x);
if (Number.isNaN(distanceFraction) || Number.isFinite(distanceFraction))
distanceFraction = (intersection.y - start.y) / (end.y - start.y);
if (distanceFraction < fraction) {
var edge = es.Vector2.subtract(edge2, edge1);
normal = new es.Vector2(edge.y, -edge.x);
fraction = distanceFraction;
intersectionPoint = intersection;
}
}
}
if (hasIntersection) {
normal = normal.normalize();
var distance = es.Vector2.distance(start, intersectionPoint);
hit.setValuesNonCollider(fraction, distance, intersectionPoint, normal);
return true;
}
return false;
};
ShapeCollisions.lineToLine = function (a1, a2, b1, b2, intersection) {
var b = es.Vector2.subtract(a2, a1);
var d = es.Vector2.subtract(b2, b1);
var bDotDPerp = b.x * d.y - b.y * d.x;
if (bDotDPerp == 0)
return false;
var c = es.Vector2.subtract(b1, a1);
var t = (c.x * d.y - c.y * d.x) / bDotDPerp;
if (t < 0 || t > 1)
return false;
var u = (c.x * b.y - c.y * b.x) / bDotDPerp;
if (u < 0 || u > 1)
return false;
intersection = intersection.add(a1).add(es.Vector2.multiply(new es.Vector2(t), b));
return true;
};
ShapeCollisions.lineToCircle = function (start, end, s, hit) {
var lineLength = es.Vector2.distance(start, end);
var d = es.Vector2.divide(es.Vector2.subtract(end, start), new es.Vector2(lineLength));
var m = es.Vector2.subtract(start, s.position);
var b = es.Vector2.dot(m, d);
var c = es.Vector2.dot(m, m) - s.radius * s.radius;
if (c > 0 && b > 0)
return false;
var discr = b * b - c;
if (discr < 0)
return false;
hit.fraction = -b - Math.sqrt(discr);
if (hit.fraction < 0)
hit.fraction = 0;
hit.point = es.Vector2.add(start, es.Vector2.multiply(new es.Vector2(hit.fraction), d));
hit.distance = es.Vector2.distance(start, hit.point);
hit.normal = es.Vector2.normalize(es.Vector2.subtract(hit.point, s.position));
hit.fraction = hit.distance / lineLength;
return true;
};
ShapeCollisions.boxToBoxCast = function (first, second, movement, hit) {
var minkowskiDiff = this.minkowskiDifference(first, second);
if (minkowskiDiff.contains(0, 0)) {
var mtv = minkowskiDiff.getClosestPointOnBoundsToOrigin();
if (mtv.equals(es.Vector2.zero))
return false;
hit.normal = new es.Vector2(-mtv.x);
hit.normal = hit.normal.normalize();
hit.distance = 0;
hit.fraction = 0;
return true;
}
else {
var ray = new es.Ray2D(es.Vector2.zero, new es.Vector2(-movement.x));
var fraction = minkowskiDiff.rayIntersects(ray);
if (fraction <= 1) {
hit.fraction = fraction;
hit.distance = movement.length() * fraction;
hit.normal = new es.Vector2(-movement.x);
hit.normal = hit.normal.normalize();
hit.centroid = es.Vector2.add(first.bounds.center, es.Vector2.multiply(movement, new es.Vector2(fraction)));
return true;
}
}
return false;
};
return ShapeCollisions;
}());
es.ShapeCollisions = ShapeCollisions;
@@ -6618,7 +6825,7 @@ var es;
for (var x = p1.x; x <= p2.x; x++) {
for (var y = p1.y; y <= p2.y; y++) {
var c = this.cellAtPosition(x, y, true);
if (c.indexOf(collider) == -1)
if (!c.firstOrDefault(function (c) { return c.hashCode == collider.hashCode; }))
c.push(collider);
}
}
@@ -6662,14 +6869,18 @@ var es;
var cell = this.cellAtPosition(x, y);
if (!cell)
continue;
for (var i = 0; i < cell.length; i++) {
var _loop_7 = function (i) {
var collider = cell[i];
if (collider == excludeCollider || !es.Flags.isFlagSet(layerMask, collider.physicsLayer))
continue;
return "continue";
if (bounds.intersects(collider.bounds)) {
if (this._tempHashSet.indexOf(collider) == -1)
this._tempHashSet.push(collider);
if (!this_3._tempHashSet.firstOrDefault(function (c) { return c.hashCode == collider.hashCode; }))
this_3._tempHashSet.push(collider);
}
};
var this_3 = this;
for (var i = 0; i < cell.length; i++) {
_loop_7(i);
}
}
}
@@ -6755,7 +6966,56 @@ var es;
es.NumberDictionary = NumberDictionary;
var RaycastResultParser = (function () {
function RaycastResultParser() {
this._checkedColliders = [];
this._cellHits = [];
}
RaycastResultParser.prototype.start = function (ray, hits, layerMask) {
this._ray = ray;
this._hits = hits;
this._layerMask = layerMask;
this.hitCounter = 0;
};
RaycastResultParser.prototype.checkRayIntersection = function (cellX, cellY, cell) {
var fraction = 0;
for (var i = 0; i < cell.length; i++) {
var potential = cell[i];
if (this._checkedColliders.contains(potential))
continue;
this._checkedColliders.push(potential);
if (potential.isTrigger && !es.Physics.raycastsHitTriggers)
continue;
if (!es.Flags.isFlagSet(this._layerMask, potential.physicsLayer))
continue;
var colliderBounds = potential.bounds;
var fraction_1 = colliderBounds.rayIntersects(this._ray);
if (fraction_1 <= 1) {
if (potential.shape.collidesWithLine(this._ray.start, this._ray.end, this._tempHit)) {
if (!es.Physics.raycastsStartInColliders && potential.shape.containsPoint(this._ray.start))
continue;
this._tempHit.collider = potential;
this._cellHits.push(this._tempHit);
}
}
}
if (this._cellHits.length == 0)
return false;
this._cellHits.sort(RaycastResultParser.compareRaycastHits);
for (var i = 0; i < this._cellHits.length; i++) {
this._hits[this.hitCounter] = this._cellHits[i];
this.hitCounter++;
if (this.hitCounter == this._hits.length)
return true;
}
return false;
};
RaycastResultParser.prototype.reset = function () {
this._hits = null;
this._checkedColliders.length = 0;
this._cellHits.length = 0;
};
RaycastResultParser.compareRaycastHits = function (a, b) {
return a.distance - b.distance;
};
return RaycastResultParser;
}());
es.RaycastResultParser = RaycastResultParser;