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add absolute rotation based hand reticle movement

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Brad Hefta-Gaub 2015-12-21 10:49:49 -08:00
parent 46a4a469e9
commit 248b3d09ac
1 changed files with 103 additions and 0 deletions
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examples/controllers/reticleHandRotationTest.js Normal file
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//
// reticleHandRotationTest.js
// examples/controllers
//
// Created by Brad Hefta-Gaub on 2015/12/15
// Copyright 2015 High Fidelity, Inc.
//
// Distributed under the Apache License, Version 2.0.
// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//
Math.clamp=function(a,b,c) {
return Math.max(b,Math.min(c,a));
}
var whichHand = Controller.Standard.RightHand;
var whichTrigger = Controller.Standard.RT;
function length(posA, posB) {
var dx = posA.x - posB.x;
var dy = posA.y - posB.y;
var length = Math.sqrt((dx*dx) + (dy*dy))
return length;
}
var EXPECTED_CHANGE = 50;
var lastPos = Controller.getReticlePosition();
function moveReticleAbsolute(x, y) {
var globalPos = Controller.getReticlePosition();
var dX = x - globalPos.x;
var dY = y - globalPos.y;
// some debugging to see if position is jumping around on us...
var distanceSinceLastMove = length(lastPos, globalPos);
if (distanceSinceLastMove > EXPECTED_CHANGE) {
print("------------------ distanceSinceLastMove:" + distanceSinceLastMove + "----------------------------");
}
if (Math.abs(dX) > EXPECTED_CHANGE) {
print("surpressing unexpectedly large change dX:" + dX + "----------------------------");
}
if (Math.abs(dY) > EXPECTED_CHANGE) {
print("surpressing unexpectedly large change dY:" + dY + "----------------------------");
}
globalPos.x = x;
globalPos.y = y;
Controller.setReticlePosition(globalPos);
lastPos = globalPos;
}
var MAPPING_NAME = "com.highfidelity.testing.reticleWithHandRotation";
var mapping = Controller.newMapping(MAPPING_NAME);
mapping.from(whichTrigger).peek().constrainToInteger().to(Controller.Actions.ReticleClick);
mapping.from(whichHand).peek().to(function(pose) {
// NOTE: hack for now
var screenSizeX = 1920;
var screenSizeY = 1080;
var rotated = Vec3.multiplyQbyV(pose.rotation, Vec3.UNIT_NEG_Y); //
var absolutePitch = rotated.y; // from 1 down to -1 up ... but note: if you rotate down "too far" it starts to go up again...
var absoluteYaw = rotated.z; // from -1 left to 1 right
//print("absolutePitch:" + absolutePitch);
//print("absoluteYaw:" + absoluteYaw);
//Vec3.print("rotated:", rotated);
var ROTATION_BOUND = 0.6;
var clampYaw = Math.clamp(absoluteYaw, -ROTATION_BOUND, ROTATION_BOUND);
var clampPitch = Math.clamp(absolutePitch, -ROTATION_BOUND, ROTATION_BOUND);
//var clampYaw = absoluteYaw;
//print("clampYaw:" + clampYaw);
//print("clampPitch:" + clampPitch);
// if using entire span...
//var xRatio = (absoluteYaw + 1) / 2;
//var yRatio = (absolutePitch + 1) / 2;
// if using only from -0.5 to 0.5
var xRatio = (clampYaw + ROTATION_BOUND) / (2 * ROTATION_BOUND);
var yRatio = (clampPitch + ROTATION_BOUND) / (2 * ROTATION_BOUND);
//print("xRatio:" + xRatio);
//print("yRatio:" + yRatio);
//print("ratio x:" + xRatio + " y:" + yRatio);
var x = screenSizeX * xRatio;
var y = screenSizeY * yRatio;
//print("position x:" + x + " y:" + y);
if (!(xRatio == 0.5 && yRatio == 0)) {
moveReticleAbsolute(x, y);
}
});
mapping.enable();
Script.scriptEnding.connect(function(){
mapping.disable();
});