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more methods return this

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Emma 2023-02-10 07:24:02 -07:00
parent 6530b928f5
commit ff463c6cee
1 changed files with 12 additions and 6 deletions
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18
geometry/vector.ts
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@ -56,9 +56,9 @@ export class Vector {
return v; return v;
} }
} }
add(x: number, y: number, z: number): void; add(x: number, y: number, z: number): Vector;
add(x: number, y: number): void; add(x: number, y: number): Vector;
add(v: Vector): void; add(v: Vector): Vector;
add(v: Vector | number, y?: number, z?: number) { add(v: Vector | number, y?: number, z?: number) {
if (arguments.length === 1 && typeof v !== 'number') { if (arguments.length === 1 && typeof v !== 'number') {
this.x += v.x; this.x += v.x;
@ -73,10 +73,11 @@ export class Vector {
this.y += y ?? 0; this.y += y ?? 0;
this.z += z ?? 0; this.z += z ?? 0;
} }
return this;
} }
sub(x: number, y: number, z: number): void; sub(x: number, y: number, z: number): Vector;
sub(x: number, y: number): void; sub(x: number, y: number): Vector;
sub(v: Vector): void; sub(v: Vector): Vector;
sub(v: Vector | number, y?: number, z?: number) { sub(v: Vector | number, y?: number, z?: number) {
if (arguments.length === 1 && typeof v !== 'number') { if (arguments.length === 1 && typeof v !== 'number') {
this.x -= v.x; this.x -= v.x;
@ -91,6 +92,7 @@ export class Vector {
this.y -= y ?? 0; this.y -= y ?? 0;
this.z -= z ?? 0; this.z -= z ?? 0;
} }
return this;
} }
mult(v: number | Vector) { mult(v: number | Vector) {
if (typeof v === 'number') { if (typeof v === 'number') {
@ -114,6 +116,7 @@ export class Vector {
this.y /= v.y; this.y /= v.y;
this.z /= v.z; this.z /= v.z;
} }
return this;
} }
rotate(angle: number) { rotate(angle: number) {
const prev_x = this.x; const prev_x = this.x;
@ -121,6 +124,7 @@ export class Vector {
const s = Math.sin(angle); const s = Math.sin(angle);
this.x = c * this.x - s * this.y; this.x = c * this.x - s * this.y;
this.y = s * prev_x + c * this.y; this.y = s * prev_x + c * this.y;
return this;
} }
dist(v: Vector) { dist(v: Vector) {
const dx = this.x - v.x, const dx = this.x - v.x,
@ -165,6 +169,7 @@ export class Vector {
this.x = lerp_val(this.x, x, amt!); this.x = lerp_val(this.x, x, amt!);
this.y = lerp_val(this.y, y, amt!); this.y = lerp_val(this.y, y, amt!);
this.z = lerp_val(this.z, z!, amt!); this.z = lerp_val(this.z, z!, amt!);
return this;
} }
normalize() { normalize() {
const m = this.mag(); const m = this.mag();
@ -178,6 +183,7 @@ export class Vector {
this.normalize(); this.normalize();
this.mult(high); this.mult(high);
} }
return this;
} }
heading() { heading() {
return (-Math.atan2(-this.y, this.x)); return (-Math.atan2(-this.y, this.x));