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Time.deltaTime更正

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ArcadeRigidbody优化
This commit is contained in:
yhh
2021-04-30 20:35:10 +08:00
parent b3c85e00f9
commit 5277c0de7d
6 changed files with 95 additions and 42 deletions
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37
source/src/ECS/Components/Physics/ArcadeRigidbody.ts
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@@ -122,8 +122,8 @@ module es {
*/
public addImpulse(force: Vector2) {
if (!this.isImmovable) {
this.velocity = Vector2.add(this.velocity, Vector2.multiply(force, new Vector2(100000))
.multiply(new Vector2(this._inverseMass * Time.deltaTime)));
this.velocity = this.velocity.add(Vector2.multiplyScaler(force, 100000)
.multiplyScaler(this._inverseMass * Time.deltaTime * Time.deltaTime));
}
}
@@ -139,9 +139,9 @@ module es {
}
if (this.shouldUseGravity)
this.velocity = Vector2.add(this.velocity, Vector2.multiply(Physics.gravity, new Vector2(Time.deltaTime)));
this.velocity = this.velocity.add(Vector2.multiplyScaler(Physics.gravity, Time.deltaTime));
this.entity.transform.position = Vector2.add(this.entity.transform.position, Vector2.multiply(this.velocity, new Vector2(Time.deltaTime)));
this.entity.transform.position = this.entity.transform.position.add(Vector2.multiplyScaler(this.velocity, Time.deltaTime));
let collisionResult = new CollisionResult();
// 捞取我们在新的位置上可能会碰撞到的任何东西
@@ -154,16 +154,16 @@ module es {
if (this._collider.collidesWithNonMotion(neighbor, collisionResult)) {
// 如果附近有一个ArcadeRigidbody，我们就会处理完整的碰撞响应。如果没有，我们会根据附近是不可移动的来计算事情
let neighborRigidbody = neighbor.entity.getComponent<ArcadeRigidbody>(ArcadeRigidbody);
let neighborRigidbody = neighbor.entity.getComponent(ArcadeRigidbody);
if (neighborRigidbody != null) {
this.processOverlap(neighborRigidbody, collisionResult.minimumTranslationVector);
this.processCollision(neighborRigidbody, collisionResult.minimumTranslationVector);
} else {
// 没有ArcadeRigidbody，所以我们假设它是不动的，只移动我们自己的
this.entity.transform.position = Vector2.subtract(this.entity.transform.position, collisionResult.minimumTranslationVector);
this.entity.transform.position = this.entity.transform.position.subtract(collisionResult.minimumTranslationVector);
let relativeVelocity = this.velocity.clone();
this.calculateResponseVelocity(relativeVelocity, collisionResult.minimumTranslationVector, relativeVelocity);
this.velocity = Vector2.add(this.velocity, relativeVelocity);
this.velocity = this.velocity.add(relativeVelocity);
}
}
}
@@ -176,12 +176,12 @@ module es {
*/
public processOverlap(other: ArcadeRigidbody, minimumTranslationVector: Vector2) {
if (this.isImmovable) {
other.entity.transform.position = Vector2.add(other.entity.transform.position, minimumTranslationVector);
other.entity.transform.position = other.entity.transform.position.add(minimumTranslationVector);
} else if (other.isImmovable) {
this.entity.transform.position = Vector2.subtract(this.entity.transform.position, minimumTranslationVector);
this.entity.transform.position = this.entity.transform.position.subtract(minimumTranslationVector);
} else {
this.entity.transform.position = Vector2.subtract(this.entity.transform.position, Vector2.multiply(minimumTranslationVector, Vector2Ext.halfVector()));
other.entity.transform.position = Vector2.add(other.entity.transform.position, Vector2.multiply(minimumTranslationVector, Vector2Ext.halfVector()));
this.entity.transform.position = this.entity.transform.position.subtract(Vector2.multiplyScaler(minimumTranslationVector, 0.5));
other.entity.transform.position = other.entity.transform.position.add(Vector2.multiplyScaler(minimumTranslationVector, 0.5));
}
}
@@ -203,8 +203,8 @@ module es {
let ourResponseFraction = this._inverseMass / totalinverseMass;
let otherResponseFraction = other._inverseMass / totalinverseMass;
this.velocity = Vector2.add(this.velocity, new Vector2(relativeVelocity.x * ourResponseFraction, relativeVelocity.y * ourResponseFraction));
other.velocity = Vector2.subtract(other.velocity, new Vector2(relativeVelocity.x * otherResponseFraction, relativeVelocity.y * otherResponseFraction));
this.velocity = this.velocity.add(Vector2.multiplyScaler(relativeVelocity, ourResponseFraction));
other.velocity = other.velocity.subtract(Vector2.multiplyScaler(relativeVelocity, otherResponseFraction));
}
/**
@@ -215,14 +215,14 @@ module es {
*/
public calculateResponseVelocity(relativeVelocity: Vector2, minimumTranslationVector: Vector2, responseVelocity: Vector2 = new Vector2()) {
// 首先，我们得到反方向的归一化MTV：表面法线
let inverseMTV = Vector2.multiply(minimumTranslationVector, new Vector2(-1));
let inverseMTV = Vector2.multiplyScaler(minimumTranslationVector, -1);
let normal = Vector2.normalize(inverseMTV);
// 速度是沿碰撞法线和碰撞平面分解的。
// 弹性将影响沿法线的响应（法线速度分量），摩擦力将影响速度的切向分量（切向速度分量）
let n = Vector2.dot(relativeVelocity, normal);
let normalVelocityComponent = new Vector2(normal.x * n, normal.y * n);
let normalVelocityComponent = Vector2.multiplyScaler(normal, n);
let tangentialVelocityComponent = Vector2.subtract(relativeVelocity, normalVelocityComponent);
if (n > 0)
@@ -234,11 +234,8 @@ module es {
coefficientOfFriction = 1.01;
// 弹性影响速度的法向分量，摩擦力影响速度的切向分量
let t = Vector2.multiply(new Vector2((1 + this._elasticity)), normalVelocityComponent)
.multiply(new Vector2(-1))
.subtract(Vector2.multiply(new Vector2(coefficientOfFriction), tangentialVelocityComponent));
responseVelocity.x = t.x;
relativeVelocity.y = t.y;
responseVelocity = Vector2.multiplyScaler(normalVelocityComponent, -(1 + this._elasticity))
.subtract(Vector2.multiplyScaler(tangentialVelocityComponent, coefficientOfFriction));
}
}
}