Add GameObjects

A simple way to add gameObjects into Unity Scene is to drag and drop. For this project, I imported Spaceship, and Asteroids from Unity Assets. For the bullet lasers, I added a 3D Object "Capsule" into the Scene and adjusted the XYZ scale and position of the capsule. The position of the capsule was just infront of the firing compartment of the spaceship.

Game Scene with Game Objects

Once the objects are added, we can adjust the position, scale and rotation from the Inspector window and using the tools shown on the side here.

Hand Tool: Grabs the scene and move around

MoveTool: Provides the orientation of the object. We can change the x, y, or z position of the object by grabbing the corresponding arrow shown. We can also change the x-y-z direction at once by grabbing the object from origin.

Rotate Tool: Using this tool, we can rotate the objects about the desired axis.

Scale Tool: When clicking this tool, similar orientation drawing is shown. We can scale the object in the desired direction. Or, by grabbing the origin of the orientation, we can scale x, y, z scale all at once.

Rect Tool: This tool draws a noded rectangular plane on the object on the plane that we face to. We can increase or decrease the size of the object dragging that node.

Move, Rotate or Scale Selected Objects: Combination of move, rotate and scale tools.

Editor Tool: Allows us to choose the components that we want to update in the objects. For instance, if a box collider is present, we can select the box collider edit option using this tool.