Mirrors/overte
3
0
Fork 0
mirror of https://github.com/overte-org/overte.git synced 2025-08-10 14:52:46 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

Prevent mouse grab from grabbing ungrabbable objects

Browse source
This commit is contained in:
James Pollack 2015-09-29 13:11:39 -07:00
parent f5743aa770
commit e615c62bd3
1 changed files with 125 additions and 31 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

146
examples/grab.js
View file

@ -9,11 +9,29 @@
// Distributed under the Apache License, Version 2.0.
// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//
/*global print, MouseMyAvatar, Entities, AnimationCache, SoundCache, Scene, Camera, Overlays, Audio, HMD, AvatarList, AvatarManager, Controller, UndoStack, Window, Account, GlobalServices, Script, ScriptDiscoveryService, LODManager, Menu, Vec3, Quat, AudioDevice, Paths, Clipboard, Settings, XMLHttpRequest, randFloat, randInt, pointInExtents, vec3equal, setEntityCustomData, getEntityCustomData */
var MAX_SOLID_ANGLE = 0.01; // objects that appear smaller than this can't be grabbed
var ZERO_VEC3 = {x: 0, y: 0, z: 0};
var IDENTITY_QUAT = {x: 0, y: 0, z: 0, w: 0};
Script.include("libraries/utils.js");
// objects that appear smaller than this can't be grabbed
var MAX_SOLID_ANGLE = 0.01;
var ZERO_VEC3 = {
x: 0,
y: 0,
z: 0
};
var IDENTITY_QUAT = {
x: 0,
y: 0,
z: 0,
w: 0
};
var GRABBABLE_DATA_KEY = "grabbableKey";
var defaultGrabbableData = {
grabbable: true
};
// helper function
function mouseIntersectionWithPlane(pointOnPlane, planeNormal, event, maxDistance) {
@ -59,36 +77,72 @@ function mouseIntersectionWithPlane(pointOnPlane, planeNormal, event, maxDistanc
// Mouse class stores mouse click and drag info
Mouse = function() {
this.current = {x: 0, y: 0 };
this.previous = {x: 0, y: 0 };
this.rotateStart = {x: 0, y: 0 };
this.cursorRestore = {x: 0, y: 0};
this.current = {
x: 0,
y: 0
};
this.previous = {
x: 0,
y: 0
};
this.rotateStart = {
x: 0,
y: 0
};
this.cursorRestore = {
x: 0,
y: 0
};
}
Mouse.prototype.startDrag = function(position) {
this.current = {x: position.x, y: position.y};
this.current = {
x: position.x,
y: position.y
};
this.startRotateDrag();
}
Mouse.prototype.updateDrag = function(position) {
this.current = {x: position.x, y: position.y };
this.current = {
x: position.x,
y: position.y
};
}
Mouse.prototype.startRotateDrag = function() {
this.previous = {x: this.current.x, y: this.current.y};
this.rotateStart = {x: this.current.x, y: this.current.y};
this.cursorRestore = { x: Window.getCursorPositionX(), y: Window.getCursorPositionY() };
this.previous = {
x: this.current.x,
y: this.current.y
};
this.rotateStart = {
x: this.current.x,
y: this.current.y
};
this.cursorRestore = {
x: Window.getCursorPositionX(),
y: Window.getCursorPositionY()
};
}
Mouse.prototype.getDrag = function() {
var delta = {x: this.current.x - this.previous.x, y: this.current.y - this.previous.y};
this.previous = {x: this.current.x, y: this.current.y};
var delta = {
x: this.current.x - this.previous.x,
y: this.current.y - this.previous.y
};
this.previous = {
x: this.current.x,
y: this.current.y
};
return delta;
}
Mouse.prototype.restoreRotateCursor = function() {
Window.setCursorPosition(this.cursorRestore.x, this.cursorRestore.y);
this.current = {x: this.rotateStart.x, y: this.rotateStart.y};
this.current = {
x: this.rotateStart.x,
y: this.rotateStart.y
};
}
var mouse = new Mouse();
@ -98,7 +152,11 @@ var mouse = new Mouse();
Beacon = function() {
this.height = 0.10;
this.overlayID = Overlays.addOverlay("line3d", {
color: {red: 200, green: 200, blue: 200},
color: {
red: 200,
green: 200,
blue: 200
},
alpha: 1,
visible: false,
lineWidth: 2
@ -106,11 +164,15 @@ Beacon = function() {
}
Beacon.prototype.enable = function() {
Overlays.editOverlay(this.overlayID, { visible: true });
Overlays.editOverlay(this.overlayID, {
visible: true
});
}
Beacon.prototype.disable = function() {
Overlays.editOverlay(this.overlayID, { visible: false });
Overlays.editOverlay(this.overlayID, {
visible: false
});
}
Beacon.prototype.updatePosition = function(position) {
@ -163,7 +225,11 @@ Grabber = function() {
// to the point where the ray intersects the grab plane (at the moment the grab is initiated).
// Future target positions of the ray intersection are on the same plane, and the offset is subtracted
// to compute the target position of the object's center.
this.offset = {x: 0, y: 0, z: 0 };
this.offset = {
x: 0,
y: 0,
z: 0
};
this.targetPosition;
this.targetRotation;
@ -179,7 +245,11 @@ Grabber.prototype.computeNewGrabPlane = function() {
var modeWasRotate = (this.mode == "rotate");
this.mode = "xzPlane";
this.planeNormal = {x: 0, y: 1, z: 0 };
this.planeNormal = {
x: 0,
y: 1,
z: 0
};
if (this.rotateKey) {
this.mode = "rotate";
mouse.startRotateDrag();
@ -217,6 +287,12 @@ Grabber.prototype.pressEvent = function(event) {
return;
}
var grabbableData = getEntityCustomData(GRABBABLE_DATA_KEY, pickResults.entityID, defaultGrabbableData);
if (grabbableData.grabbable === false) {
return;
}
mouse.startDrag(event);
var clickedEntity = pickResults.entityID;
@ -233,13 +309,19 @@ Grabber.prototype.pressEvent = function(event) {
return;
}
Entities.editEntity(clickedEntity, { gravity: ZERO_VEC3 });
Entities.editEntity(clickedEntity, {
gravity: ZERO_VEC3
});
this.isGrabbing = true;
this.entityID = clickedEntity;
this.currentPosition = entityProperties.position;
this.originalGravity = entityProperties.gravity;
this.targetPosition = {x: this.startPosition.x, y: this.startPosition.y, z: this.startPosition.z};
this.targetPosition = {
x: this.startPosition.x,
y: this.startPosition.y,
z: this.startPosition.z
};
// compute the grab point
var nearestPoint = Vec3.subtract(this.startPosition, cameraPosition);
@ -261,7 +343,9 @@ Grabber.prototype.pressEvent = function(event) {
Grabber.prototype.releaseEvent = function() {
if (this.isGrabbing) {
if (Vec3.length(this.originalGravity) != 0) {
Entities.editEntity(this.entityID, { gravity: this.originalGravity});
Entities.editEntity(this.entityID, {
gravity: this.originalGravity
});
}
this.isGrabbing = false
@ -303,7 +387,10 @@ Grabber.prototype.moveEvent = function(event) {
// var qZero = entityProperties.rotation;
//var qZero = this.lastRotation;
this.lastRotation = Quat.multiply(deltaQ, this.lastRotation);
actionArgs = {targetRotation: this.lastRotation, angularTimeScale: 0.1};
actionArgs = {
targetRotation: this.lastRotation,
angularTimeScale: 0.1
};
} else {
var newPointOnPlane;
if (this.mode === "verticalCylinder") {
@ -314,7 +401,11 @@ Grabber.prototype.moveEvent = function(event) {
var pointOnCylinder = Vec3.multiply(planeNormal, this.xzDistanceToGrab);
pointOnCylinder = Vec3.sum(Camera.getPosition(), pointOnCylinder);
this.pointOnPlane = mouseIntersectionWithPlane(pointOnCylinder, planeNormal, mouse.current, this.maxDistance);
newPointOnPlane = {x: this.pointOnPlane.x, y: this.pointOnPlane.y, z: this.pointOnPlane.z};
newPointOnPlane = {
x: this.pointOnPlane.x,
y: this.pointOnPlane.y,
z: this.pointOnPlane.z
};
} else {
var cameraPosition = Camera.getPosition();
newPointOnPlane = mouseIntersectionWithPlane(this.pointOnPlane, this.planeNormal, mouse.current, this.maxDistance);
@ -327,7 +418,10 @@ Grabber.prototype.moveEvent = function(event) {
}
}
this.targetPosition = Vec3.subtract(newPointOnPlane, this.offset);
actionArgs = {targetPosition: this.targetPosition, linearTimeScale: 0.1};
actionArgs = {
targetPosition: this.targetPosition,
linearTimeScale: 0.1
};
beacon.updatePosition(this.targetPosition);
}