Unity Move Objects Test

Here are a few scripts to move objects around.

test it here

Mainly you'll find:

Draggable.cs

Attach to any object in the scene to make all Rigidbodies draggable (or those on a layer you select).
Break Force (speed) and Break Torque (fast change of direction) that can break the joint between the mouse and the object are dependant on the object's mass that is set in it's Rigibody.

Properties

Attach to Center of Mass (bool): if true, will attach to the center of the object instead of click coordinates
Layer Mask (int): Use to restrict to certain layers
Do Not Break (bool): Do not break link between mouse and object, even if strong forces are applied
Draw Line (bool): if true, will draw a line between the object and the mouse
Spring (float): How springy the joint is
Damper (float): How much dampness does the joint uses
Distance (float): The distance between the mouse and the clicked point
Smooth (float): How smooth the movement is. 1 is very smooth, 10 follows the mouse almost exactly
Break Force Modifier (float): gets added to the automatically calculated Break Force. Set it to minus to make the Joint stronger
Break Torque Modifier (float): gets added to the automatically calculated Break Torque. Set it to minus to make the joint stronger
Strength (float): How strong the mouse is. The higher this value, the easier it will be to lift heavy objects
Line Width (float): The width of the line between the object and the mouse
Line Material (Material): The material of the line (it is advised to set it to something self-illuminated and without shadows; a suitable shader is provided in the repo)
Restrict: allows to restrict movement to the X, Y, or Z plane
- x (bool): restricts to x axis
- y (bool): restricts to y axis
- z (bool): ...
Max Distance (float): if user drags over that distance, the bond will break
Mouse Horizon (float): Where does the ray cast from the mouse stops detecting objects

Note: I'm not sure that having the break force and torque automatically calculated from the mass is a good idea; However, I didn't want to add this script on each relevant object and so I had to devise a way to obtain those values automatically. I've added the modifiers and strength in order to keep some control over this value. If you have a better idea, I'm all ears.

ForceDraggable.cs

Same as Draggable.cs, but uses gravity and forces. In other words, the object you're transporting will still be subject to all the forces that may be applied on it.
It has all the exact same properties as Draggable.cs

SimpleDraggable.cs

A simpler draggable class that does not require a rigidbody (but works if a rigidbody is present too).

Properties

Layer Mask (int): Use to restrict to certain layers
Draw Line (bool): if true, will draw a line between the object and the mouse
Smooth (float): How smooth the movement is. 1 is very smooth, 10 follows the mouse almost exactly
Strength (float): How strong the mouse is. The higher this value, the easier it will be to lift heavy objects
Line Width (float): The width of the line between the object and the mouse
Line Material (Material): The material of the line (it is advised to set it to something self-illuminated and without shadows; a suitable shader is provided in the repo)
Max Distance (float): if user drags over that distance, the bond will break
Derive Distance From Mass: if true, will try set the Max Distance as a proportion of mass. Mass will be derived from the rigidbody, if there is one, or from the object's volume (assuming density is 1, so a 1m object will weight 100k); To be able to lift heavier objects, dial the strength property.
Mouse Horizon (float): Where does the ray cast from the mouse stops detecting objects
Restrict: allows to restrict movement to the X, Y, or Z plane
- x (bool): restricts to x axis
- y (bool): restricts to y axis
- z (bool): ...

Auxiliary Classes

Line.cs

Draws a line
Properties

width (float): sets the line width
material (Material): sets the line material
pointA (Vector3): sets the first point of the line
pointB (Vector3): sets the second point of the line
distance: gets the distance between the two points, returns a float
visible (bool): makes the line visible or invisible

Methods

void Enable(): enables the line (alternative to line.visible=true)
void Disable(): disables the line (alternative to line.visible=false)
void SetPoints(Vector3 a, Vector3 b): Sets the two points (alternative to using line.pointA, line.pointB)

RestrictDimension.cs

A simple class that stores x, y, and z booleans. Used mainly to display the restrict options of Draggable and SimpleDraggable in the UI in a pleasant manner.

Properties

x: boolean
y: boolean
z: boolean

Optional Goodies

They're all under /optionalStuff

SolidColor.shader

A simple shader that takes a color and transparency. Useful for UI objects that should not project shadows nor receive any.

FollowMouse.cs

A simple script that makes an object follow the mouse. Set it on the object that you want to use. It will follow the mouse on X and Z axis, leaving the Y intact. Useful for setting a light that follows the mouse, for example.

properties

Max Distance (float): The distance after which the object stops following the mouse
Smooth (float): Smoothness of the movement. Lower is smoother.

KeyboardOrbit.cs

A modified version of KeyboardOrbit.cs found on the unity wiki
Set it on a camera, then click on an object to focus on it, WASD to orbit, mousewheel to zoom in and out.

Properties:

Layer Mask (mask): Which objects are selectable to rotate around
Target (GameObject): Start Target to rotate around
Distance (float): default starting distance

Other properties are not very important...The script is quite messy.

License

MIT

Xananax/unity-manipulateObjectsTest

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