Unity 2D game
Crypt Raider
Introduction:
To complete the journey
in the vast Egyptian deserts crypt raider has to complete all the five levels
of the puzzle in the pyramids. To finish the level, he has to put the ball in
the portal and then he will go to the next level. It’s not that easy as there
will be some obstacles like flies, bombs and getting the key to open the path
way for the portal. If he dies or gets stuck in the obstacles he will have to
start the journey from the beginning.
Preview:
Main
menu:
To add buttons and text
in the main menu and instruction page, we used the graphical user interface (GUI)
technique. To edit the buttons, we used GUI Skin which is a feature of unity
platform.
Features:
We used following
feature of unity 2D in our game:
1.
Box collider.
2.
Rigid body.
3.
Particle system.
4.
GUI Skin.
5.
Animator.
C#
Scripting:
We use following
functions in our scripts:
- Void start() { It is called when scene is start }
- Void update() { It is used to implement any kind of
game behavior in every frame}
- Void OnCollisionEnter2D(Collision2D abc) { It is called
when object collides with another }
- Void Awake() { It is called when the script instance is
loaded }
- Void OnDestroy() { It is called when scripted object is
destroyed }
- Application.LoadLevel(“levelname”) { To call specific
scene }
- Invoke() { To add delay }
- Destroy() { To destroy specific object }
- Instantiation {For the sound and visual effects}
- GameObject.FindWithTag(“tag”) { To find an object }
- Abc.gameobject.tag==”tag” { To check the object which
collides }
Character:
The name of our
character is crypt raider. We applied physics 2D components on it such as box
collider, rigid body etc.
We used the following
command for the movement:
void Update()
{
if (move) {
if (Input.GetAxis ("Horizontal") > 0) {
transform.Translate (Vector2.right * speed);
} else if (Input.GetAxis ("Horizontal") < 0) {
transform.Translate (-Vector2.right * speed);
} else if (Input.GetAxis ("Vertical") > 0) {
transform.Translate (Vector2.up * speed);
} else if (Input.GetAxis ("Vertical") < 0) {
transform.Translate (-Vector2.up * speed);
} else if(Input.GetKey(KeyCode.Escape)){
Application.LoadLevel ("over");
}
}
Ball and portal:
We applied
box collider on the ball and the portal. Where a small gravity effect is also
applied on the ball so that it can fall downwards.
We used
the following script for portal to destroy ball and the character and to add
sound effects.
void OnCollisionEnter2D(Collision2D
other)
{
if(BALL.gameObject==null)
{
if (other.gameObject.tag == "asd") {
Destroy (other.gameObject);
soundhelper.instance.MakePlayerEnterSound ();
Invoke ("Level", 2.0f);
}
}
}
void Level()
{
Application.LoadLevel ("level2");
}
The
following Script is applied on ball for self-destroy on collision with portal.
It also add sound and visual effects.
void OnCollisionEnter2D(Collision2D
other)
{
if (other.gameObject.tag == "portal") {
Destroy (this.gameObject);
effect.instance.Enter (transform.position);
soundhelper.instance.MakeBallEnterSound ();
}
}
Obstacles:
We used
following obstacles:
- Flies:
We used
RayCast controller technique to move it up and down.
- Bomb:
We
applied Destroy() function on bomb to destroy the fly.
- Key and door:
We
applied this script on key.
public GameObject DOOR;
void Start () {
DOOR=GameObject.FindWithTag("door");
}
void OnCollisionEnter2D
(Collision2D other)
{
if (other.gameObject.tag == "asd") {
Destroy (this.gameObject);
soundhelper.instance.MakeKeySound ();
}
}
void OnDestroy()
{
Destroy (DOOR.gameObject);
}
Thank
you for
reading our blog. For any queries you can further contact,
Abdul
Wahid - awahid.bee15seecs@seecs.edu.pk
Rahim
Zahid - rzahid.bee15seecs@seecs.edu.pk
