05: Rude Gold Bug (Part 3)

Learning Target

• Add connect and configure joints
• Add physics materials to game objects
• Add constraints to rigidbodies and joints

Resources

• Joints: 
• Physics Materials: 

Instructions

Step 1: 

You will need to add things to your scene that behaves like a diving board, paddle or flap. You'll use a Hinge Joint for this with "Use Spring" turned on.

You will also need to add things that rotate under the action of a motor. You also use a Hinge Joint for this with "Use Motor" turned on.

Step 2:

Some things in your scene may need to be locked into place so that they move, but only in certain directions. You can do this with constraints:

Step 3: 

In order for things to move realistically, you'll want to add Physics Materials to their colliders. These materials aren't visible, but determine the bounciness and friction of each surface.

Here is a sample material for rubber:

Step 4: 

Once you have all of the parts of your machine in place, it's time to start tuning its movement. You'll want to adjust:

• • Mass
  • Drag
  • Friction
  • Bounciness

You may also need to add additional constraints to objects until things behave as you wish.

Step 5: 

Once things are working as you intend, be sure to double-check the grading criteria and then submit your project!

Grading