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Reduced garbage creation for increased performance.

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This commit is contained in:
Daan Vanden Bosch 2019-09-21 14:54:42 +02:00
parent 79b85fc859
commit dbb5b65b74
1 changed files with 25 additions and 21 deletions
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46
src/quest_editor/rendering/QuestEntityControls.ts
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@ -18,7 +18,8 @@ import {
} from "../gui/entity_dnd"; } from "../gui/entity_dnd";
import { vec3_to_threejs } from "../../core/rendering/conversion"; import { vec3_to_threejs } from "../../core/rendering/conversion";
const DOWN_VECTOR = new Vector3(0, -1, 0); const UP_VECTOR = Object.freeze(new Vector3(0, 1, 0));
const DOWN_VECTOR = Object.freeze(new Vector3(0, -1, 0));
type Highlighted = { type Highlighted = {
entity: QuestEntityModel; entity: QuestEntityModel;
@ -54,18 +55,24 @@ type PickResult = Pick & {
}; };
export class QuestEntityControls implements Disposable { export class QuestEntityControls implements Disposable {
private raycaster = new Raycaster();
private selected?: Highlighted; private selected?: Highlighted;
private hovered?: Highlighted; private hovered?: Highlighted;
/** /**
* Iff defined, the user is transforming the selected entity. * Iff defined, the user is transforming the selected entity.
*/ */
private pick?: Pick; private pick?: Pick;
private pointer_position = new Vector2(0, 0); private readonly pointer_position = new Vector2(0, 0);
private pointer_device_position = new Vector2(0, 0); private readonly pointer_device_position = new Vector2(0, 0);
private last_pointer_position = new Vector2(0, 0); private readonly last_pointer_position = new Vector2(0, 0);
private moved_since_last_mouse_down = false; private moved_since_last_mouse_down = false;
private disposer = new Disposer();
// The following properties are used during entity translation.
private readonly raycaster = new Raycaster();
private readonly plane = new Plane();
private readonly plane_normal = new Vector3();
private readonly intersection_point = new Vector3();
private readonly disposer = new Disposer();
constructor(private renderer: QuestRenderer) { constructor(private renderer: QuestRenderer) {
this.disposer.add( this.disposer.add(
@ -366,16 +373,17 @@ export class QuestEntityControls implements Disposable {
this.raycaster.setFromCamera(this.pointer_device_position, this.renderer.camera); this.raycaster.setFromCamera(this.pointer_device_position, this.renderer.camera);
const ray = this.raycaster.ray; const ray = this.raycaster.ray;
const negative_world_dir = this.renderer.camera.getWorldDirection(new Vector3()).negate(); this.renderer.camera.getWorldDirection(this.plane_normal);
const plane = new Plane().setFromNormalAndCoplanarPoint( this.plane_normal.negate();
new Vector3(negative_world_dir.x, 0, negative_world_dir.z).normalize(), this.plane_normal.y = 0;
this.plane_normal.normalize();
this.plane.setFromNormalAndCoplanarPoint(
this.plane_normal,
vec3_to_threejs(entity.world_position.val).sub(grab_offset), vec3_to_threejs(entity.world_position.val).sub(grab_offset),
); );
const intersection_point = new Vector3(); if (ray.intersectPlane(this.plane, this.intersection_point)) {
const y = this.intersection_point.y + grab_offset.y;
if (ray.intersectPlane(plane, intersection_point)) {
const y = intersection_point.y + grab_offset.y;
const y_delta = y - entity.world_position.val.y; const y_delta = y - entity.world_position.val.y;
drag_adjust.y -= y_delta; drag_adjust.y -= y_delta;
entity.set_world_position( entity.set_world_position(
@ -416,18 +424,14 @@ export class QuestEntityControls implements Disposable {
// plane in which the entity's origin lies. // plane in which the entity's origin lies.
this.raycaster.setFromCamera(this.pointer_device_position, this.renderer.camera); this.raycaster.setFromCamera(this.pointer_device_position, this.renderer.camera);
const ray = this.raycaster.ray; const ray = this.raycaster.ray;
const plane = new Plane( this.plane.set(UP_VECTOR, -entity.world_position.val.y + grab_offset.y);
new Vector3(0, 1, 0),
-entity.world_position.val.y + grab_offset.y,
);
const intersection_point = new Vector3();
if (ray.intersectPlane(plane, intersection_point)) { if (ray.intersectPlane(this.plane, this.intersection_point)) {
entity.set_world_position( entity.set_world_position(
new Vec3( new Vec3(
intersection_point.x + grab_offset.x, this.intersection_point.x + grab_offset.x,
entity.world_position.val.y, entity.world_position.val.y,
intersection_point.z + grab_offset.z, this.intersection_point.z + grab_offset.z,
), ),
); );
} }