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make entity collision on the Y axis more reliable

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Holly Stubbs 2023-12-29 16:32:07 +00:00
parent b02ac676e2
commit 9ae490bba3
Signed by: tgpholly
GPG key ID: B8583C4B7D18119E
2 changed files with 22 additions and 6 deletions
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10
server/Vec3.ts
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@ -49,6 +49,16 @@ export default class Vec3 {
}
}
sub(x:Vec3 | number, y?:number, z?:number) {
if (x instanceof Vec3) {
this.set(this.x - x.x, this.y - x.y, this.z - x.z);
} else if (typeof(x) === "number" && typeof(y) === "number" && typeof(z) === "number") {
this.set(this.x - x, this.y - y, this.z - z);
} else {
throw new Error(`Invalid arguments for Vec3.add : ${typeof(x)}, ${typeof(y)}, ${typeof(z)}`);
}
}
mult(x:Vec3 | number, y?:number, z?:number) {
if (x instanceof Vec3) {
this.set(this.x * x.x, this.y * x.y, this.z * x.z);

16
server/entities/Entity.ts
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@ -32,7 +32,7 @@ export class Entity implements IEntity {
public lastAbsPosition:Vec3;
public motion:Vec3;
private positionBeforeMove:Vec3;
private moveEntityBlockPosRel:Vec3;
public rotation:Rotation;
public lastRotation:Rotation;
@ -80,7 +80,7 @@ export class Entity implements IEntity {
this.lastAbsPosition = new Vec3();
this.motion = new Vec3();
this.positionBeforeMove = new Vec3();
this.moveEntityBlockPosRel = new Vec3();
this.rotation = new Rotation();
this.lastRotation = new Rotation();
@ -250,21 +250,27 @@ export class Entity implements IEntity {
}
moveEntity(motionX:number, motionY:number, motionZ:number) {
this.positionBeforeMove.set(this.position);
this.position.add(motionX, motionY, motionZ);
this.entityAABB.move(this.position);
const blockId = this.chunk.getBlockId(Math.floor(this.position.x) & 0xf, Math.floor(this.position.y), Math.floor(this.position.z) & 0xf);
const blockUnderEntity = blockId > 0 ? Block.blocks[blockId] : null;
if (blockUnderEntity !== null) {
this.moveEntityBlockPosRel.set(this.position);
this.moveEntityBlockPosRel.sub(Math.floor(this.position.x), Math.floor(this.position.y), Math.floor(this.position.z));
console.log(this.moveEntityBlockPosRel);
const blockBoundingBox = blockUnderEntity.getBoundingBox(Math.floor(this.position.x), Math.floor(this.position.y), Math.floor(this.position.z));
// TODO: Handle X and Z collisions.
if (this.entityAABB.intersects(blockBoundingBox)) {
const intersectionY = this.entityAABB.intersectionY(blockBoundingBox);
if (this.moveEntityBlockPosRel.y > 0.5) {
this.position.add(0, intersectionY, 0);
} else {
this.position.sub(0, intersectionY, 0);
}
this.motion.y = 0;
this.onGround = true;
}