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Improve air balloon physics

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Sollace 2022-09-27 00:04:09 +02:00
parent 5d21c691b4
commit 1b6ca1ad46
1 changed files with 92 additions and 75 deletions
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167
src/main/java/com/minelittlepony/unicopia/entity/AirBalloonEntity.java
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@ -6,6 +6,8 @@ import net.minecraft.entity.data.*;
import net.minecraft.entity.mob.FlyingEntity;
import net.minecraft.entity.player.PlayerEntity;
import net.minecraft.nbt.NbtCompound;
import net.minecraft.network.packet.s2c.play.EntityVelocityUpdateS2CPacket;
import net.minecraft.server.network.ServerPlayerEntity;
import net.minecraft.util.math.*;
import net.minecraft.util.shape.VoxelShape;
import net.minecraft.util.shape.VoxelShapes;
@ -21,6 +23,9 @@ public class AirBalloonEntity extends FlyingEntity implements EntityCollisions.C
private static final byte BURNER_ACTIVE = 4;
private static final TrackedData<Integer> FLAGS = DataTracker.registerData(AirBalloonEntity.class, TrackedDataHandlerRegistry.INTEGER);
private Vec3d prevVehicleVel = Vec3d.ZERO;
private Vec3d velocityBeforeTick = Vec3d.ZERO;
public AirBalloonEntity(EntityType<? extends AirBalloonEntity> type, World world) {
super(type, world);
}
@ -48,7 +53,7 @@ public class AirBalloonEntity extends FlyingEntity implements EntityCollisions.C
}
public boolean isBurnerActive() {
return getFlag((byte)(HAS_BURNER | BURNER_ACTIVE));
return getFlag((byte)(HAS_BURNER | BURNER_ACTIVE | HAS_BALLOON));
}
public void setBurnerActive(boolean burnerActive) {
@ -65,15 +70,12 @@ public class AirBalloonEntity extends FlyingEntity implements EntityCollisions.C
}
private boolean isAirworthy() {
return hasBalloon() && (!onGround || isBurnerActive());
return hasBalloon() && isBurnerActive();
}
@Override
public void tick() {
this.setHasBalloon(true);
this.setHasBurner(true);
this.setBurnerActive(false);
prevVehicleVel = getVelocity();
setAir(getMaxAir());
if (isAirworthy()) {
@ -81,9 +83,14 @@ public class AirBalloonEntity extends FlyingEntity implements EntityCollisions.C
.add(getWind(world, getBlockPos()))
.normalize()
.multiply(0.2)
.add(0, isBurnerActive() ? 0.09F : isTouchingWater() ? 0.02F : -0.06F, 0));
.add(0, isBurnerActive() ? 0.00F : isTouchingWater() ? 0.02F : -0.06F, 0));
} else {
addVelocity(0, isTouchingWater() ? 0.02F : -0.02F, 0);
addVelocity(0, -0.03, 0);
if (isSubmergedInWater()) {
double yy = getVelocity().y;
setVelocity(getVelocity().multiply(0.9, 0.4, 0.9).add(0, Math.abs(yy) / 2F, 0));
}
}
if (isLeashed()) {
@ -96,60 +103,26 @@ public class AirBalloonEntity extends FlyingEntity implements EntityCollisions.C
}
}
if (age % 20 < 10) {
if (getVelocity().y < 0.1) {
addVelocity(0, 0.01, 0);
}
} else {
if (getVelocity().y > -0.1) {
addVelocity(0, -0.01, 0);
}
}
super.tick();
velocityBeforeTick = getVelocity();
//setVelocity(Vec3d.ZERO);
float weight = 0;
if (getVelocity().length() > 0) {
Box box = getBoundingBox();
for (var e : this.world.getOtherEntities(this, box.expand(1, 1.0E-7, 1))) {
Vec3d vel = e.getVelocity();
if (getVelocity().y > 0 && box.maxY > e.getBoundingBox().minY) {
e.setPosition(e.getX(), box.maxY + 0.1, e.getZ());
}
if (!(e instanceof PlayerEntity)) {
e.setVelocity(vel.multiply(0.3).add(getVelocity().multiply(0.786)));
}
e.setOnGround(true);
if (horizontalSpeed != 0) {
e.distanceTraveled = 0;
e.horizontalSpeed = 0;
if (e instanceof LivingEntity l) {
l.limbAngle = 0;
l.limbDistance = 0;
}
}
if (velocityBeforeTick.length() > 0.01 && !isSubmergedInWater()) {
Box box = getInteriorBoundingBox();
for (Entity e : world.getOtherEntities(this, box.expand(-0.2, 1, -0.2))) {
updatePassenger(e, box, !onGround);
weight++;
}
Box balloonTopBox = getBoundingBox().offset(0.125, 11, 0).expand(2.25, 0, 2);
if (hasBalloon()) {
Box balloonBox = getBalloonBoundingBox();
for (var e : this.world.getOtherEntities(this, balloonTopBox.expand(1.0E-7))) {
Vec3d vel = e.getVelocity();
double yVel = vel.y + Math.max(balloonTopBox.maxY - e.getBoundingBox().minY, 0);
yVel /= 8;
yVel += 0.3;
e.setVelocity(vel.getX(), yVel, vel.getZ());
e.setVelocity(e.getVelocity().multiply(0.3).add(getVelocity().multiply(0.786)));
e.setOnGround(true);
Living.updateVelocity(e);
for (Entity e : world.getOtherEntities(this, balloonBox.expand(1.0E-7))) {
updatePassenger(e, balloonBox, false);
}
}
}
@ -159,27 +132,53 @@ public class AirBalloonEntity extends FlyingEntity implements EntityCollisions.C
}
addVelocity(0, MathHelper.clamp(-weight / 10F, -1, isLeashed() ? 0.2F : 1), 0);
}
}
super.tick();
private void updatePassenger(Entity e, Box box, boolean checkBasket) {
Vec3d pos = e.getPos();
double xx = checkBasket ? MathHelper.clamp(pos.x, box.minX, box.maxX) : pos.x;
double zz = checkBasket ? MathHelper.clamp(pos.z, box.minZ, box.maxZ) : pos.z;
double yy = pos.y;
Box entityBox = e.getBoundingBox();
if ((Math.abs(velocityBeforeTick.y) > 0.0001F && entityBox.minY < box.maxY)
|| (entityBox.minY > box.maxY && entityBox.minY < box.maxY + 0.01)) {
yy = box.maxY - Math.signum(velocityBeforeTick.y) * 0.01;
}
if (xx != pos.x || zz != pos.z || yy != pos.y) {
e.setPos(xx + velocityBeforeTick.x, yy, zz + velocityBeforeTick.z);
}
Vec3d vel = e.getVelocity();
if (vel.lengthSquared() >= prevVehicleVel.lengthSquared()) {
vel = vel.subtract(prevVehicleVel);
}
e.setVelocity(vel.multiply(0.5).add(velocityBeforeTick.multiply(0.65)));
Living.updateVelocity(e);
if (e instanceof ServerPlayerEntity ply) {
ply.networkHandler.sendPacket(new EntityVelocityUpdateS2CPacket(ply));
}
e.setOnGround(true);
if (horizontalSpeed != 0) {
e.distanceTraveled = 0;
e.horizontalSpeed = 0;
if (e instanceof LivingEntity l) {
l.limbAngle = 0;
l.limbDistance = 0;
}
}
}
@Override
public void onPlayerCollision(PlayerEntity player) {
// TODO: check that this is still working correctly after adding Living.updateVelocity(i) in AirBalloonEntity.tick()
if (getVelocity().lengthSquared() > 0) {
// player.setVelocity(getVelocity().multiply(1.3));
player.setVelocity(player.getVelocity().multiply(0.3).add(getVelocity().multiply(
getVelocity().y < 0 ? 0.828 : 0.728
)));
double diff = (getBoundingBox().maxY + getVelocity().y) - player.getBoundingBox().minY;
if (diff > 0) {
player.addVelocity(0, diff, 0);
}
Living.updateVelocity(player);
}
// updatePassenger(player, getInteriorBoundingBox(), false);
}
@Override
@ -203,7 +202,18 @@ public class AirBalloonEntity extends FlyingEntity implements EntityCollisions.C
@Override
public Box getVisibilityBoundingBox() {
return getBoundingBox().expand(30, 100, 30);
if (hasBalloon()) {
return getBoundingBox().union(getBalloonBoundingBox());
}
return getBoundingBox();
}
protected Box getInteriorBoundingBox() {
return getBoundingBox().contract(0.7, 0, 0.7);
}
protected Box getBalloonBoundingBox() {
return getBoundingBox().offset(0.125, 11, 0).expand(2.25, 0, 2);
}
@Override
@ -211,19 +221,26 @@ public class AirBalloonEntity extends FlyingEntity implements EntityCollisions.C
Box box = getBoundingBox().expand(0.3, 0, 0.3);
double wallheight = box.maxY + 1;
double wallheight = box.maxY + 0.7;
double wallThickness = 0.7;
// front left (next to door)
output.accept(VoxelShapes.cuboid(new Box(box.minX, box.minY, box.minZ, box.minX + wallThickness + 0.2, wallheight, box.minZ + wallThickness)));
// front right (next to door)
output.accept(VoxelShapes.cuboid(new Box(box.maxX - wallThickness - 0.2, box.minY, box.minZ, box.maxX, wallheight, box.minZ + wallThickness)));
// back
output.accept(VoxelShapes.cuboid(new Box(box.minX, box.minY, box.maxZ - wallThickness, box.maxX, wallheight, box.maxZ)));
output.accept(VoxelShapes.cuboid(new Box(box.minX, box.minY, box.minZ, box.minX + wallThickness, wallheight, box.maxZ)));
// left
output.accept(VoxelShapes.cuboid(new Box(box.maxX - wallThickness, box.minY, box.minZ, box.maxX, wallheight, box.maxZ)));
// right
output.accept(VoxelShapes.cuboid(new Box(box.minX, box.minY, box.minZ, box.minX + wallThickness, wallheight, box.maxZ)));
// top of balloon
if (hasBalloon()) {
output.accept(VoxelShapes.cuboid(getBoundingBox().offset(0.125, 11, 0).expand(2.25, 0, 2)));
output.accept(VoxelShapes.cuboid(getBoundingBox().offset(0.125, 6, 0).expand(2.25, 3, 2)));
}
}
@ -244,7 +261,7 @@ public class AirBalloonEntity extends FlyingEntity implements EntityCollisions.C
}
static Vec3d getWind(World world, BlockPos pos) {
return Vec3d.ofCenter(pos).normalize().multiply(1, 0, 1).multiply(0.2);//.multiply((world.getRandom().nextFloat() - 0.5) * 0.2);
return Vec3d.ofCenter(pos).normalize().multiply(1, 0, 1).multiply(0.002);//.multiply((world.getRandom().nextFloat() - 0.5) * 0.2);
}
}