LabyStudio
527 lines
15 KiB
JavaScript
527 lines
15 KiB
JavaScript
window.Player = class {
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constructor(minecraft, world) {
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this.minecraft = minecraft;
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this.world = world;
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this.prevX = 0;
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this.prevY = 0;
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this.prevZ = 0;
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this.x = 0;
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this.y = 0;
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this.z = 0;
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this.motionX = 0;
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this.motionY = 0;
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this.motionZ = 0;
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this.yaw = 0;
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this.pitch = 0;
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this.onGround = false;
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this.collision = false;
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this.jumpMovementFactor = 0.02;
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this.speedInAir = 0.02;
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this.flySpeed = 0.05;
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this.stepHeight = 0.5;
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this.moveForward = 0.0;
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this.moveStrafing = 0.0;
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this.jumpTicks = 0;
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this.flyToggleTimer = 0;
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this.sprintToggleTimer = 0;
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this.jumping = false;
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this.sprinting = false;
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this.sneaking = false;
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this.flying = false;
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this.prevFovModifier = 0;
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this.fovModifier = 0;
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this.timeFovChanged = 0;
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}
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respawn() {
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let spawnY = this.world.getHeightAt(0, 0);
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this.setPosition(0, spawnY + 8, 0);
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}
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setPosition(x, y, z) {
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let width = 0.3;
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let height = 0.9;
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this.boundingBox = new BoundingBox(
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x - width,
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y - height,
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z - width,
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x + width,
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y + height,
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z + width
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);
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this.motionX = 0;
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this.motionY = 0;
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this.motionZ = 0;
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// Update position
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this.x = (this.boundingBox.minX + this.boundingBox.maxX) / 2.0;
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this.y = this.boundingBox.minY;
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this.z = (this.boundingBox.minZ + this.boundingBox.maxZ) / 2.0;
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}
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turn(motionX, motionY) {
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this.yaw = this.yaw + motionX * 0.15;
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this.pitch = this.pitch - motionY * 0.15;
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if (this.pitch < -90.0) {
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this.pitch = -90.0;
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}
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if (this.pitch > 90.0) {
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this.pitch = 90.0;
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}
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}
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onTick() {
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let prevMoveForward = this.moveForward;
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let prevJumping = this.jumping;
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this.updateKeyboardInput();
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// Toggle jumping
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if (!prevJumping && this.jumping) {
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if (this.flyToggleTimer === 0) {
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this.flyToggleTimer = 7;
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} else {
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this.flying = !this.flying;
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this.flyToggleTimer = 0;
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this.updateFOVModifier();
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}
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}
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// Toggle sprint
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if (prevMoveForward === 0 && this.moveForward > 0) {
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if (this.sprintToggleTimer === 0) {
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this.sprintToggleTimer = 7;
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} else {
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this.sprinting = true;
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this.sprintToggleTimer = 0;
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this.updateFOVModifier();
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}
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}
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if (this.jumpTicks > 0) {
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--this.jumpTicks;
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}
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if (this.flyToggleTimer > 0) {
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--this.flyToggleTimer;
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}
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if (this.sprintToggleTimer > 0) {
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--this.sprintToggleTimer;
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}
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this.prevX = this.x;
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this.prevY = this.y;
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this.prevZ = this.z;
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// Stop if too slow
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if (Math.abs(this.motionX) < 0.003) {
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this.motionX = 0.0;
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}
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if (Math.abs(this.motionY) < 0.003) {
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this.motionY = 0.0;
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}
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if (Math.abs(this.motionZ) < 0.003) {
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this.motionZ = 0.0;
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}
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// Jump
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if (this.jumping) {
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if (this.isInWater()) {
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this.motionY += 0.04;
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} else if (this.onGround && this.jumpTicks === 0) {
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this.jump();
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this.jumpTicks = 10;
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}
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} else {
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this.jumpTicks = 0;
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}
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this.moveStrafing *= 0.98;
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this.moveForward *= 0.98;
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if (this.flying) {
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this.travelFlying(this.moveForward, 0, this.moveStrafing);
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} else {
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if (this.isInWater()) {
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// Is inside of water
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this.travelInWater(this.moveForward, 0, this.moveStrafing);
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} else {
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// Is on land
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this.travel(this.moveForward, 0, this.moveStrafing);
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}
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}
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this.jumpMovementFactor = this.speedInAir;
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if (this.sprinting) {
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this.jumpMovementFactor = this.jumpMovementFactor + this.speedInAir * 0.3;
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if (this.moveForward <= 0 || this.collision || this.sneaking) {
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this.sprinting = false;
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this.updateFOVModifier();
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}
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}
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}
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isInWater() {
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return this.world.getBlockAt(this.getBlockPosX(), this.getBlockPosY(), this.getBlockPosZ()) === Block.WATER.getId();
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}
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isHeadInWater() {
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return this.world.getBlockAt(this.getBlockPosX(), Math.floor(this.y + this.getEyeHeight() + 0.12), this.getBlockPosZ()) === Block.WATER.getId();
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}
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jump() {
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this.motionY = 0.42;
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if (this.sprinting) {
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let radiansYaw = MathHelper.toRadians(this.yaw + 180);
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this.motionX -= Math.sin(radiansYaw) * 0.2;
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this.motionZ += Math.cos(radiansYaw) * 0.2;
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}
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}
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travelFlying(forward, vertical, strafe) {
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// Fly move up and down
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if (this.sneaking) {
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this.moveStrafing = strafe / 0.3;
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this.moveForward = forward / 0.3;
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this.motionY -= this.flySpeed * 3.0;
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}
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if (this.jumping) {
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this.motionY += this.flySpeed * 3.0;
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}
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let prevMotionY = this.motionY;
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let prevJumpMovementFactor = this.jumpMovementFactor;
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this.jumpMovementFactor = this.flySpeed * (this.sprinting ? 2 : 1);
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this.travel(forward, vertical, strafe);
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this.motionY = prevMotionY * 0.6;
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this.jumpMovementFactor = prevJumpMovementFactor;
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if (this.onGround) {
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this.flying = false;
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}
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}
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travelInWater(forward, vertical, strafe) {
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let slipperiness = 0.8;
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let friction = 0.02;
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this.moveRelative(forward, vertical, strafe, friction);
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this.collision = this.moveCollide(-this.motionX, this.motionY, -this.motionZ);
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this.motionX *= slipperiness;
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this.motionY *= 0.8;
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this.motionZ *= slipperiness;
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this.motionY -= 0.02;
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}
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travel(forward, vertical, strafe) {
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let prevSlipperiness = this.getBlockSlipperiness() * 0.91;
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let value = 0.16277136 / (prevSlipperiness * prevSlipperiness * prevSlipperiness);
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let friction;
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if (this.onGround) {
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friction = this.getAIMoveSpeed() * value;
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} else {
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friction = this.jumpMovementFactor;
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}
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this.moveRelative(forward, vertical, strafe, friction);
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// Get new speed
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let slipperiness = this.getBlockSlipperiness() * 0.91;
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// Move
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this.collision = this.moveCollide(-this.motionX, this.motionY, -this.motionZ);
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// Gravity
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if (!this.flying) {
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this.motionY -= 0.08;
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}
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// Decrease motion
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this.motionX *= slipperiness;
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this.motionY *= 0.98;
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this.motionZ *= slipperiness;
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}
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getBlockSlipperiness() {
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return this.onGround ? 0.6 : 1.0;
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}
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getAIMoveSpeed() {
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return this.sprinting ? 0.13 : 0.1;
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}
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moveRelative(forward, up, strafe, friction) {
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let distance = strafe * strafe + up * up + forward * forward;
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if (distance >= 0.0001) {
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distance = Math.sqrt(distance);
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if (distance < 1.0) {
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distance = 1.0;
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}
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distance = friction / distance;
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strafe = strafe * distance;
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up = up * distance;
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forward = forward * distance;
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let yawRadians = MathHelper.toRadians(this.yaw + 180);
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let sin = Math.sin(yawRadians);
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let cos = Math.cos(yawRadians);
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this.motionX += strafe * cos - forward * sin;
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this.motionY += up;
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this.motionZ += forward * cos + strafe * sin;
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}
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}
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updateKeyboardInput() {
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let moveForward = 0.0;
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let moveStrafe = 0.0;
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let jumping = false;
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let sneaking = false;
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if (this.minecraft.hasInGameFocus()) {
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/*if (Keyboard.isKeyDown("KeyR")) { // R
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this.respawn();
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}*/
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if (Keyboard.isKeyDown("KeyW")) { // W
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moveForward++;
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}
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if (Keyboard.isKeyDown("KeyS")) { // S
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moveForward--;
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}
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if (Keyboard.isKeyDown("KeyA")) { // A
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moveStrafe++;
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}
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if (Keyboard.isKeyDown("KeyD")) { // D
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moveStrafe--;
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}
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if (Keyboard.isKeyDown("Space")) { // Space
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jumping = true;
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}
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if (Keyboard.isKeyDown(this.minecraft.settings.sprinting)) {
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if (this.moveForward > 0 && !this.sneaking && !this.sprinting && this.motionX !== 0 && this.motionZ !== 0) {
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this.sprinting = true;
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this.updateFOVModifier();
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}
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}
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if (Keyboard.isKeyDown(this.minecraft.settings.crouching)) { // Q
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sneaking = true;
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}
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if (sneaking) {
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moveStrafe = moveStrafe * 0.3;
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moveForward = moveForward * 0.3;
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}
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}
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this.moveForward = moveForward;
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this.moveStrafing = moveStrafe;
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this.jumping = jumping;
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this.sneaking = sneaking;
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}
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moveCollide(targetX, targetY, targetZ) {
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// Target position
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let originalTargetX = targetX;
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let originalTargetY = targetY;
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let originalTargetZ = targetZ;
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if (this.onGround && this.sneaking) {
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for (; targetX !== 0.0 && this.world.getCollisionBoxes(this.boundingBox.offset(targetX, -this.stepHeight, 0.0)).length === 0; originalTargetX = targetX) {
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if (targetX < 0.05 && targetX >= -0.05) {
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targetX = 0.0;
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} else if (targetX > 0.0) {
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targetX -= 0.05;
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} else {
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targetX += 0.05;
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}
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}
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for (; targetZ !== 0.0 && this.world.getCollisionBoxes(this.boundingBox.offset(0.0, -this.stepHeight, targetZ)).length === 0; originalTargetZ = targetZ) {
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if (targetZ < 0.05 && targetZ >= -0.05) {
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targetZ = 0.0;
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} else if (targetZ > 0.0) {
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targetZ -= 0.05;
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} else {
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targetZ += 0.05;
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}
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}
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for (; targetX !== 0.0 && targetZ !== 0.0 && this.world.getCollisionBoxes(this.boundingBox.offset(targetX, -this.stepHeight, targetZ)).length === 0; originalTargetZ = targetZ) {
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if (targetX < 0.05 && targetX >= -0.05) {
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targetX = 0.0;
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} else if (targetX > 0.0) {
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targetX -= 0.05;
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} else {
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targetX += 0.05;
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}
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originalTargetX = targetX;
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if (targetZ < 0.05 && targetZ >= -0.05) {
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targetZ = 0.0;
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} else if (targetZ > 0.0) {
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targetZ -= 0.05;
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} else {
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targetZ += 0.05;
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}
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}
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}
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// Get level tiles as bounding boxes
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let boundingBoxList = this.world.getCollisionBoxes(this.boundingBox.expand(targetX, targetY, targetZ));
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// Move bounding box
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for (let aABB in boundingBoxList) {
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targetY = boundingBoxList[aABB].clipYCollide(this.boundingBox, targetY);
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}
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this.boundingBox.move(0.0, targetY, 0.0);
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for (let aABB in boundingBoxList) {
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targetX = boundingBoxList[aABB].clipXCollide(this.boundingBox, targetX);
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}
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this.boundingBox.move(targetX, 0.0, 0.0);
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for (let aABB in boundingBoxList) {
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targetZ = boundingBoxList[aABB].clipZCollide(this.boundingBox, targetZ);
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}
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this.boundingBox.move(0.0, 0.0, targetZ);
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this.onGround = originalTargetY !== targetY && originalTargetY < 0.0;
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// Stop motion on collision
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if (originalTargetX !== targetX) {
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this.motionX = 0.0;
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}
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if (originalTargetY !== targetY) {
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this.motionY = 0.0;
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}
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if (originalTargetZ !== targetZ) {
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this.motionZ = 0.0;
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}
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// Update position
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this.x = (this.boundingBox.minX + this.boundingBox.maxX) / 2.0;
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this.y = this.boundingBox.minY;
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this.z = (this.boundingBox.minZ + this.boundingBox.maxZ) / 2.0;
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// Horizontal collision?
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return originalTargetX !== targetX || originalTargetZ !== targetZ;
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}
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getEyeHeight() {
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return this.sneaking ? 1.50 : 1.62;
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}
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updateFOVModifier() {
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let value = 1.0;
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if (this.sprinting) {
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value += 1;
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}
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if (this.flying) {
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value *= 1.1;
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}
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this.setFOVModifier((value - 1.0) * 10);
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}
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setFOVModifier(fov) {
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this.prevFovModifier = this.fovModifier;
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this.fovModifier = fov;
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this.timeFovChanged = Date.now();
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}
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getFOVModifier() {
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let timePassed = Date.now() - this.timeFovChanged;
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let distance = this.prevFovModifier - this.fovModifier;
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let duration = 100;
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let progress = distance / duration * timePassed;
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return timePassed > duration ? this.fovModifier : this.prevFovModifier - progress;
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}
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getBlockPosX() {
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return this.x - (this.x < 0 ? 1 : 0);
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}
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getBlockPosY() {
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return this.y - (this.y < 0 ? 1 : 0);
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}
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getBlockPosZ() {
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return this.z - (this.z < 0 ? 1 : 0);
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}
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getPositionEyes(partialTicks) {
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if (partialTicks === 1.0) {
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return new Vector3(this.x, this.y + this.getEyeHeight(), this.z);
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} else {
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let x = this.prevX + (this.x - this.prevX) * partialTicks;
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let y = this.prevY + (this.y - this.prevY) * partialTicks + this.getEyeHeight();
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let z = this.prevZ + (this.z - this.prevZ) * partialTicks;
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return new Vector3(x, y, z);
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}
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}
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/**
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* interpolated look vector
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*/
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getLook(partialTicks) {
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// TODO interpolation
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return this.getVectorForRotation(this.pitch, this.yaw);
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}
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/**
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* Creates a Vec3 using the pitch and yaw of the entities rotation.
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*/
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getVectorForRotation(pitch, yaw) {
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let z = Math.cos(-yaw * 0.017453292 - Math.PI);
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let x = Math.sin(-yaw * 0.017453292 - Math.PI);
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let xz = -Math.cos(-pitch * 0.017453292);
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let y = Math.sin(-pitch * 0.017453292);
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return new Vector3(x * xz, y, z * xz);
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}
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rayTrace(blockReachDistance, partialTicks) {
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let from = this.getPositionEyes(partialTicks);
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let direction = this.getLook(partialTicks);
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let to = from.addVector(direction.x * blockReachDistance, direction.y * blockReachDistance, direction.z * blockReachDistance);
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return this.world.rayTraceBlocks(from, to);
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}
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} |