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store position as fixed point representation, fix precision problem

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Romain Beaumont 2015-08-26 00:16:40 +02:00
parent d544c1094d
commit 71d6c1fa8c
1 changed files with 15 additions and 8 deletions
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23
app.js
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@ -8,6 +8,13 @@ var playersConnected = [];
var uuidToPlayer = {}; var uuidToPlayer = {};
var vec3 = require("vec3"); var vec3 = require("vec3");
function toFixedPosition(p)
{
return new vec3(Math.floor(p.x*32),Math.floor(p.y*32),Math.floor(p.z*32))
}
var options = { var options = {
motd: settings.motd, motd: settings.motd,
'max-players': settings.maxPlayers, 'max-players': settings.maxPlayers,
@ -150,9 +157,9 @@ server.on('login', function(client) {
client.write('named_entity_spawn', { client.write('named_entity_spawn', {
entityId: otherClient.id, entityId: otherClient.id,
playerUUID: transformUuid(otherClient.uuid), playerUUID: transformUuid(otherClient.uuid),
x: pos ? Math.floor(pos.x*32) : 6*32, x: pos ? pos.x : 6*32,
y: pos ? Math.floor(pos.y*32) : 53*32, y: pos ? pos.y : 53*32,
z: pos ? Math.floor(pos.z*32) : 6*32, z: pos ? pos.z : 6*32,
yaw: 0, yaw: 0,
pitch: 0, pitch: 0,
currentItem: 0, currentItem: 0,
@ -185,13 +192,13 @@ server.on('login', function(client) {
client.on('position', function(packet) { client.on('position', function(packet) {
var position = new vec3(packet.x,packet.y,packet.z); var position = new vec3(packet.x,packet.y,packet.z);
var onGround=packet.onGround; var onGround=packet.onGround;
sendRelativePositionChange(client,position,onGround); sendRelativePositionChange(client,toFixedPosition(position),onGround);
}); });
client.on('position_look', function(packet) { client.on('position_look', function(packet) {
var position = new vec3(packet.x,packet.y,packet.z); var position = new vec3(packet.x,packet.y,packet.z);
var onGround=packet.onGround; var onGround=packet.onGround;
sendRelativePositionChange(client,position,onGround); sendRelativePositionChange(client,toFixedPosition(position),onGround);
}); });
function sendRelativePositionChange(client,newPosition,onGround) { function sendRelativePositionChange(client,newPosition,onGround) {
@ -201,9 +208,9 @@ server.on('login', function(client) {
getOtherClients().forEach(function (otherClient) { getOtherClients().forEach(function (otherClient) {
otherClient.write('rel_entity_move', { otherClient.write('rel_entity_move', {
entityId: uuidToPlayer[client.uuid].id, entityId: uuidToPlayer[client.uuid].id,
dX: Math.floor(diff.x*32), dX: diff.x,
dY: Math.floor(diff.y*32), dY: diff.y,
dZ: Math.floor(diff.z*32), dZ: diff.z,
onGround: onGround onGround: onGround
}); });
}); });