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survivors: fixing homing projectiles behaving correctly after losing the target

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Sheldan
2025-08-30 19:30:49 +02:00
parent 39da3d8abd
commit e44355bf21
4 changed files with 10 additions and 6 deletions
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6
absurd-survivors/src/base.ts
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@@ -54,8 +54,12 @@ export class Vector {
return (this._x * vector._x + this._y * vector._y) / Math.pow(vector.vecLength(), 2); return (this._x * vector._x + this._y * vector._y) / Math.pow(vector.vecLength(), 2);
} }
dotProduct2(vector: Vector): number {
return (this._x * vector._x + this._y * vector._y)
}
angleTo(vector: Vector): number { angleTo(vector: Vector): number {
return Math.acos(this.dotProduct(vector)) return Math.acos(this.dotProduct2(vector) / (this.vecLength() * vector.vecLength()))
} }
get x(): number { get x(): number {

2
absurd-survivors/src/main.ts
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@@ -122,7 +122,7 @@ docReady(function () {
}, 10_000) }, 10_000)
player.addWeapon(Pistol.generatePistol(world)) player.addWeapon(Pistol.generatePistol(world))
player.addWeapon(HomingPistol.generatePistol(world)) player.addWeapon(HomingPistol.generateHomingPistol(world))
hud = new HUD(world); hud = new HUD(world);

6
absurd-survivors/src/projectile.ts
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@@ -144,7 +144,7 @@ export class HomingProjectile extends Projectile {
if(target.dead()) { if(target.dead()) {
let closestTargetTo = this.world.getClosestTargetTo(this.position) let closestTargetTo = this.world.getClosestTargetTo(this.position)
let newTargetDirection = Vector.createVector(this.target.getPosition(), this.position) let oldTargetDirection = Vector.createVector(this.target.getPosition(), this.position)
let justMovedDirection = Vector.createVector(this.position, this.lastPosition).normalize() let justMovedDirection = Vector.createVector(this.position, this.lastPosition).normalize()
let olderMovedDirection: Vector; let olderMovedDirection: Vector;
if(this.secondToLastPosition !== undefined) { if(this.secondToLastPosition !== undefined) {
@@ -155,8 +155,8 @@ export class HomingProjectile extends Projectile {
if (closestTargetTo !== undefined && closestTargetTo[1] !== undefined) { if (closestTargetTo !== undefined && closestTargetTo[1] !== undefined) {
let newTargetPosition = closestTargetTo[1]!.getPosition(); let newTargetPosition = closestTargetTo[1]!.getPosition();
let newDir = Vector.createVector(newTargetPosition, this.position) let newDir = Vector.createVector(newTargetPosition, this.position)
let newDirAngle = newDir.angleTo(newTargetDirection); let newDirAngle = newDir.angleTo(oldTargetDirection);
if(Math.abs(newDirAngle) >= toRad(150)) { if(Math.abs(newDirAngle) <= toRad(30)) {
this.target = closestTargetTo[1]!; this.target = closestTargetTo[1]!;
} else { } else {
if(pointOnLineWithinLine(this.target.getPosition(), this.lastPosition, this.position)) { if(pointOnLineWithinLine(this.target.getPosition(), this.lastPosition, this.position)) {

2
absurd-survivors/src/weapons.ts
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@@ -100,7 +100,7 @@ export class HomingPistol extends RangeWeapon {
} }
} }
static generatePistol(world: World, offset?: Vector) { static generateHomingPistol(world: World, offset?: Vector) {
if(!offset) { if(!offset) {
offset = new Vector(5, 5) offset = new Vector(5, 5)
} }