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Adjust creation position so that bounding box is creation distance away

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David Rowe 2017-05-29 13:52:36 +12:00
parent 9b679325ff
commit f0785cd39e
1 changed files with 51 additions and 0 deletions
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51
scripts/system/edit.js
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@ -229,11 +229,62 @@ var toolBar = (function () {
systemToolbar = null,
tablet = null;
function adjustPositionPerBoundingBox(position, direction, registration, dimensions, orientation) {
// Adjust the position such that the bounding box lies behind the original position.
var CORNERS = [
{ x: 0, y: 0, z: 0 },
{ x: 0, y: 0, z: 1 },
{ x: 0, y: 1, z: 0 },
{ x: 0, y: 1, z: 1 },
{ x: 1, y: 0, z: 0 },
{ x: 1, y: 0, z: 1 },
{ x: 1, y: 1, z: 0 },
{ x: 1, y: 1, z: 1 },
];
// Go through all corners and find least (most negative) distance in front of position.
var distance = 0;
for (var i = 0, length = CORNERS.length; i < length; i++) {
var cornerVector =
Vec3.multiplyQbyV(orientation, Vec3.multiplyVbyV(Vec3.subtract(CORNERS[i], registration), dimensions));
var cornerDistance = Vec3.dot(cornerVector, direction);
distance = Math.min(cornerDistance, distance);
}
position = Vec3.sum(Vec3.multiply(distance, direction), position);
return position;
}
function createNewEntity(properties) {
var dimensions = properties.dimensions ? properties.dimensions : DEFAULT_DIMENSIONS;
var position = getPositionToCreateEntity();
var entityID = null;
if (position !== null && position !== undefined) {
var ADJUST_ENTITY_TYPES = ["Box", "Sphere", "Shape", "Text", "Web"];
if (ADJUST_ENTITY_TYPES.indexOf(properties.type) !== -1) {
var direction;
if (Camera.mode === "entity" || Camera.mode === "independent") {
direction = Camera.orientation;
} else {
direction = MyAvatar.orientation;
}
direction = Vec3.multiplyQbyV(direction, Vec3.UNIT_Z);
var registration = properties.registration;
if (registration === undefined) {
var DEFAULT_REGISTRATION = { x: 0.5, y: 0.5, z: 0.5 };
registration = DEFAULT_REGISTRATION;
}
var orientation = properties.orientation;
if (orientation === undefined) {
var DEFAULT_ORIENTATION = Quat.fromPitchYawRollDegrees(0, 0, 0);
orientation = DEFAULT_ORIENTATION;
}
position = adjustPositionPerBoundingBox(position, direction, registration, dimensions, orientation);
}
position = grid.snapToSurface(grid.snapToGrid(position, false, dimensions), dimensions);
properties.position = position;
if (Menu.isOptionChecked(GRABBABLE_ENTITIES_MENU_ITEM)) {