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https://github.com/Sollace/Unicopia.git
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Implement more realistic flying mechanics
This commit is contained in:
Sollace
parent
86524c10aa
commit
12a56dfe79
4 changed files with 128 additions and 229 deletions
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@ -1,50 +0,0 @@
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package com.minelittlepony.unicopia.entity.player;
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import com.minelittlepony.unicopia.util.MutableVector;
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import net.minecraft.entity.Entity;
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import net.minecraft.entity.player.PlayerEntity;
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import net.minecraft.util.math.Vec3d;
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public class AeronauticalPlayerPhysics extends PlayerPhysics {
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private final Aeronautics auronautics = new Aeronautics();
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private double gravity;
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private int thrustCountdown;
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public AeronauticalPlayerPhysics(Pony pony) {
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super(pony);
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}
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@Override
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public double calcGravity(double worldConstant) {
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return gravity = super.calcGravity(worldConstant);
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}
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@Override
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protected void moveFlying(Entity player, MutableVector velocity) {
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PlayerEntity ply = (PlayerEntity)player;
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auronautics.pitchAngle = 0;
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auronautics.rollAngle = 0;
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float yaw = player.getYaw(1);
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Vec3d motion = auronautics.calcGravitationalAccelleration(gravity);
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if (ply.forwardSpeed != 0 && thrustCountdown-- <= 0) {
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thrustCountdown = 20;
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player.playSound(getWingSound(), 0.4F, 1);
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motion = motion.add(auronautics.calcThrustVelocity(-100));
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}
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motion = motion.rotateY(yaw).add(velocity.toImmutable()).multiply(1 - auronautics.getDrag());
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velocity.x = motion.x;
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velocity.y = motion.y;
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velocity.z = motion.z;
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}
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}
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@ -1,73 +0,0 @@
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package com.minelittlepony.unicopia.entity.player;
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import net.minecraft.util.math.Vec3d;
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// X - forward
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// Y - vertical
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// Z - sideways
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public class Aeronautics {
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public double rollAngle;
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public double pitchAngle;
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/**
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* Gets the normalized direction vector
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*/
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private Vec3d getMomentVector() {
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// sine(angle) = y/h
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// cos(angle) = x/h
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Vec3d climbVector = new Vec3d(Math.cos(pitchAngle), Math.sin(pitchAngle), 0);
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Vec3d bankVector = new Vec3d(0, Math.sin(rollAngle), Math.cos(rollAngle));
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return bankVector.add(climbVector).normalize();
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}
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/**
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* Gets the normalized perpendicular vector.
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*/
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private Vec3d getNormal() {
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// sine(angle) = y/h
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// cos(angle) = x/h
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Vec3d climbVector = new Vec3d(Math.cos(pitchAngle), Math.sin(pitchAngle), 0);
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Vec3d bankVector = new Vec3d(0, Math.sin(rollAngle), Math.cos(rollAngle));
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return bankVector.crossProduct(climbVector).normalize();
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}
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/**
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* Returns the acceleration vector due to gravity
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* parallel to the slope of the incline described
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* by the roll and pitch components.
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*
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* @param gravity The global gravitation constant C
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*/
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public Vec3d calcGravitationalAccelleration(double gravity) {
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return getMomentVector().multiply(
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-gravity * Math.signum(pitchAngle),
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-gravity,
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-gravity * Math.signum(rollAngle)
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);
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}
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/**
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* Gets the added thrust vector for the given forwards motion
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* and velocity projected against the direction of incline.
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*
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* @param forwards The forwards thrust speed
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* @param velocity The current motion vector
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*/
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public Vec3d calcThrustVelocity(double forwards) {
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return getNormal().add(getMomentVector())
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.normalize()
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.multiply(forwards * (1 - getDrag()));
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}
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/**
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* The drag due to air resistance.
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*/
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public double getDrag() {
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return 0.0078; // magic number until I figure out what tf I'm doing
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}
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}
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@ -49,13 +49,9 @@ public final class PlayerDimensions {
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flyingDimensions = EntityDimensions.changing(dimensions.width, dimensions.height / 2);
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}
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return getPredicate().flatMap(e -> e.getTargetDimensions(pony)).orElseGet(() -> {
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if (physics.isFlyingSurvival && physics.isRainboom()) {
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return flyingDimensions;
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}
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return defaultDimensions;
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});
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return getPredicate()
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.flatMap(e -> e.getTargetDimensions(pony))
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.orElseGet(() -> physics.isFlyingSurvival ? flyingDimensions : defaultDimensions);
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}
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private float calculateTargetEyeHeight() {
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@ -65,10 +61,6 @@ public final class PlayerDimensions {
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return height;
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}
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if (physics.isFlyingSurvival && physics.isRainboom()) {
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return 0.5F;
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}
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return defaultEyeHeight;
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}
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@ -15,20 +15,21 @@ import net.minecraft.entity.player.PlayerEntity;
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import net.minecraft.nbt.CompoundTag;
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import net.minecraft.sound.SoundCategory;
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import net.minecraft.sound.SoundEvent;
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import net.minecraft.sound.SoundEvents;
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import net.minecraft.util.Tickable;
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import net.minecraft.util.math.BlockPos;
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import net.minecraft.util.math.MathHelper;
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import net.minecraft.util.math.Vec3d;
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public class PlayerPhysics extends EntityPhysics<Pony> implements Tickable, Motion, NbtSerialisable {
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private int ticksInAir;
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private float thrustScale = 0;
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public boolean isFlyingEither = false;
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public boolean isFlyingSurvival = false;
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private double lastTickPosX = 0;
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private double lastTickPosZ = 0;
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private Vec3d lastPos = Vec3d.ZERO;
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private final PlayerDimensions dimensions;
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@ -47,30 +48,16 @@ public class PlayerPhysics extends EntityPhysics<Pony> implements Tickable, Moti
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return super.getGravityModifier() * (float)pony.getOwner().getAttributeValue(PlayerAttributes.ENTITY_GRAVTY_MODIFIER);
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}
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private boolean checkCanFly() {
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if (pony.getOwner().abilities.creativeMode || pony.getOwner().isSpectator()) {
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return true;
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}
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if (pony.hasSpell()) {
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Spell effect = pony.getSpell(true);
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if (!effect.isDead() && effect instanceof FlightPredicate) {
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return ((FlightPredicate)effect).checkCanFly(pony);
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}
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}
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return pony.getSpecies().canFly();
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}
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protected boolean isRainboom() {
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return Math.sqrt(getHorizontalMotion(pony.getOwner())) > 0.4F;
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}
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@Override
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public PlayerDimensions getDimensions() {
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return dimensions;
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}
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@Override
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public boolean isFlying() {
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return isFlyingSurvival && !pony.getOwner().isFallFlying() && !pony.getOwner().hasVehicle();
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}
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@Override
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public void tick() {
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PlayerEntity entity = pony.getOwner();
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@ -83,32 +70,37 @@ public class PlayerPhysics extends EntityPhysics<Pony> implements Tickable, Moti
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entity.setPose(EntityPose.STANDING);
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}
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MutableVector velocity = new MutableVector(entity.getVelocity());
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final MutableVector velocity = new MutableVector(entity.getVelocity());
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boolean creative = entity.abilities.creativeMode || pony.getOwner().isSpectator();
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entity.abilities.allowFlying = checkCanFly();
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boolean canFly = checkCanFly();
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if (!creative) {
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entity.abilities.flying |= entity.abilities.allowFlying && isFlyingEither;
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entity.abilities.flying |= (canFly || entity.abilities.allowFlying) && isFlyingEither;
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if ((entity.isOnGround() && entity.isSneaking()) || entity.isTouchingWater()) {
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if ((entity.isOnGround() && entity.isSneaking()) || entity.isTouchingWater() || entity.horizontalCollision || entity.verticalCollision) {
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entity.abilities.flying = false;
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}
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}
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isFlyingSurvival = entity.abilities.flying && !creative;
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isFlyingEither = isFlyingSurvival || (creative && entity.abilities.flying);
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if (!creative && !entity.isFallFlying() && isFlyingSurvival && !entity.hasVehicle()) {
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if (pony.getPhysics().isGravityNegative()) {
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entity.setOnGround(!entity.world.isAir(new BlockPos(entity.getX(), entity.getY() + entity.getHeight() + 0.5F, entity.getZ())));
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entity.fallDistance = 0;
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if (entity.isOnGround() || entity.horizontalCollision) {
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entity.abilities.flying = false;
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isFlyingEither = false;
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isFlyingSurvival = false;
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}
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}
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if (isFlying()) {
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int level = pony.getLevel().get() + 1;
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if (ticksInAir > (level * 100)) {
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if (ticksInAir++ > (level * 100)) {
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Bar mana = pony.getMagicalReserves().getMana();
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mana.add((int)(-getHorizontalMotion(entity) * 50 / level));
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@ -128,100 +120,143 @@ public class PlayerPhysics extends EntityPhysics<Pony> implements Tickable, Moti
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}
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}
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moveFlying(entity, velocity);
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entity.fallDistance = 0;
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if (ticksInAir++ > 0 && ticksInAir % 30 == 0) {
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entity.playSound(getWingSound(), 0.5F, 1);
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moveFlying(entity, velocity);
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if (entity.world.hasRain(entity.getBlockPos())) {
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applyTurbulance(entity, velocity);
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}
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if (entity.world.isClient && ticksInAir % 20 == 0 && entity.getVelocity().length() < 0.29) {
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entity.playSound(getWingSound(), 0.5F, 1);
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thrustScale = 1;
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}
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velocity.y -= 0.02;
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} else {
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ticksInAir = 0;
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}
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if (pony.getPhysics().isGravityNegative()) {
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entity.setOnGround(!entity.world.isAir(new BlockPos(entity.getX(), entity.getY() + entity.getHeight() + 0.5F, entity.getZ())));
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if (!creative) {
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if (entity.isOnGround()) {
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entity.abilities.flying = false;
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isFlyingSurvival = false;
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double horMotion = getHorizontalMotion(entity);
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double motion = entity.getPos().subtract(lastPos).lengthSquared();
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if (velocity.y > 0 && (horMotion > 0.2 || (motion > 0.2 && velocity.y < -0.2))) {
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entity.abilities.flying = true;
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isFlyingEither = true;
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isFlyingSurvival = true;
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velocity.y += horMotion + 0.3;
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applyThrust(entity, velocity);
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}
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}
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}
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lastTickPosX = entity.getX();
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lastTickPosZ = entity.getZ();
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lastPos = new Vec3d(entity.getX(), 0, entity.getZ());
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entity.setVelocity(velocity.toImmutable());
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}
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public SoundEvent getWingSound() {
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private SoundEvent getWingSound() {
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return pony.getSpecies() == Race.CHANGELING ? USounds.CHANGELING_BUZZ : USounds.WING_FLAP;
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}
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protected void moveFlying(Entity player, MutableVector velocity) {
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protected void moveFlying(PlayerEntity player, MutableVector velocity) {
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applyThrust(player, velocity);
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float forward = 0.000015F * (1 + (pony.getLevel().get() / 10F)) * (float)Math.sqrt(getHorizontalMotion(player));
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boolean sneak = !player.isSneaking();
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double motion = getHorizontalMotion(player);
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float forward = 0.000015F * (1 + (pony.getLevel().get() / 10F)) * (float)Math.sqrt(motion);
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// vertical drop due to gravity
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if (sneak) {
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velocity.y -= (0.005F - getHorizontalMotion(player) / 100) * getGravitySignum();
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} else {
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forward += 0.005F;
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velocity.y -= 0.0001F * getGravitySignum();
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}
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forward += 0.005F;
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velocity.y -= (getGravityModifier() * 0.01F) / Math.max(motion * 100, 1);
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velocity.x += - forward * MathHelper.sin(player.yaw * 0.017453292F);
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velocity.z += forward * MathHelper.cos(player.yaw * 0.017453292F);
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}
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if (player.world.hasRain(player.getBlockPos())) {
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float glance = 360 * player.world.random.nextFloat();
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forward = 0.015F * player.world.random.nextFloat() * player.world.getRainGradient(1);
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if (player.world.random.nextInt(30) == 0) {
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forward *= 10;
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}
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if (player.world.random.nextInt(30) == 0) {
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forward *= 10;
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}
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if (player.world.random.nextInt(40) == 0) {
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forward *= 100;
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}
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if (player.world.isThundering() && player.world.random.nextInt(60) == 0) {
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velocity.y += forward * 3;
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}
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if (forward >= 1) {
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player.world.playSound(null, player.getBlockPos(), USounds.WIND_RUSH, SoundCategory.AMBIENT, 3, 1);
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}
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if (forward > 4) {
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forward = 4;
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}
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velocity.x += - forward * MathHelper.sin((player.yaw + glance) * 0.017453292F);
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velocity.z += forward * MathHelper.cos((player.yaw + glance) * 0.017453292F);
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protected void applyThrust(PlayerEntity player, MutableVector velocity) {
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if (pony.sneakingChanged() && player.isSneaking()) {
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thrustScale = 1;
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player.playSound(getWingSound(), 0.5F, 1);
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} else {
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thrustScale *= 0.1889F;
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}
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float thrustStrength = 0.135F * thrustScale;
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Vec3d direction = player.getRotationVec(1).normalize().multiply(thrustStrength);
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velocity.x += direction.x;
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velocity.z += direction.z;
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velocity.y += direction.y * 2.45 + Math.abs(direction.y) * 10;
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if (player.isSneaking()) {
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velocity.y += 0.4 - 0.25;
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if (pony.sneakingChanged()) {
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velocity.y += 0.75;
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}
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} else {
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velocity.y -= 0.1;
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}
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}
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protected void applyTurbulance(Entity player, MutableVector velocity) {
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float glance = 360 * player.world.random.nextFloat();
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float forward = 0.015F * player.world.random.nextFloat() * player.world.getRainGradient(1);
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if (player.world.random.nextInt(30) == 0) {
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forward *= 10;
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}
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if (player.world.random.nextInt(30) == 0) {
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forward *= 10;
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}
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if (player.world.random.nextInt(40) == 0) {
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forward *= 100;
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}
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if (player.world.isThundering() && player.world.random.nextInt(60) == 0) {
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velocity.y += forward * 3;
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}
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if (forward >= 1) {
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player.world.playSound(null, player.getBlockPos(), USounds.WIND_RUSH, SoundCategory.AMBIENT, 3, 1);
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}
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if (forward > 4) {
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forward = 4;
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}
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velocity.x += - forward * MathHelper.sin((player.yaw + glance) * 0.017453292F);
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velocity.z += forward * MathHelper.cos((player.yaw + glance) * 0.017453292F);
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}
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protected double getHorizontalMotion(Entity e) {
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double motionX = e.getX() - lastTickPosX;
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double motionZ = e.getZ() - lastTickPosZ;
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return (motionX * motionX) + (motionZ * motionZ);
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return Entity.squaredHorizontalLength(e.getPos().subtract(lastPos));
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}
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protected SoundEvent getFallSound(int distance) {
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return distance > 4 ? SoundEvents.ENTITY_PLAYER_BIG_FALL : SoundEvents.ENTITY_PLAYER_SMALL_FALL;
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private boolean checkCanFly() {
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if (pony.getOwner().abilities.creativeMode || pony.getOwner().isSpectator()) {
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return true;
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}
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if (pony.hasSpell()) {
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Spell effect = pony.getSpell(true);
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if (!effect.isDead() && effect instanceof FlightPredicate) {
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return ((FlightPredicate)effect).checkCanFly(pony);
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}
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}
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return pony.getSpecies().canFly();
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}
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public void updateFlightStat(boolean flying) {
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PlayerEntity entity = pony.getOwner();
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entity.abilities.allowFlying = checkCanFly();
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boolean canFly = checkCanFly();
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if (entity.abilities.allowFlying) {
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if (canFly || entity.abilities.allowFlying) {
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entity.abilities.flying |= flying;
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isFlyingSurvival = entity.abilities.flying;
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@ -248,9 +283,4 @@ public class PlayerPhysics extends EntityPhysics<Pony> implements Tickable, Moti
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pony.getOwner().calculateDimensions();
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}
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@Override
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public boolean isFlying() {
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return isFlyingSurvival;
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}
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}
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