Create a new Scene with Node as root
Create a new Scene with Node as root
Rename to AsteroidSpawner
Rename to AsteroidSpawner
Attach a Script
Attach a Script
Embedded Files
Assign a class name
Assign a class name
Export variables for
Export variables for
Number of asteroids
The Asteroid Scene
Number of asteroids
The Asteroid Scene
In the Inspector
In the Inspector
Assign the Asteroid scene
Assign the Asteroid scene
Create a function to spawn an asteroid
Create a function to spawn an asteroid
Push an error if the asteroid scene is not assigned
Push an error if the asteroid scene is not assigned
Instantiate the asteroid scene
Instantiate the asteroid scene
Add the scene to the Scene Tree
Add the scene to the Scene Tree
Set the position
Set the position
What is call_deferred( )?
What is call_deferred( )?
call_deferred() is a programming function that schedules a method call to run later, typically at the end of the current frame or during the next "idle time," rather than immediately. It's crucial for safe operations on the scene tree (like adding/removing nodes) or physics that can't happen mid-frame, preventing errors by waiting until the main loop is free, ensuring everything is ready and avoiding conflicts.
call_deferred() is a programming function that schedules a method call to run later, typically at the end of the current frame or during the next "idle time," rather than immediately. It's crucial for safe operations on the scene tree (like adding/removing nodes) or physics that can't happen mid-frame, preventing errors by waiting until the main loop is free, ensuring everything is ready and avoiding conflicts.
Create a function to spawn multiple asteroids
Create a function to spawn multiple asteroids
Use GameUtils to get the screen bounds
Use GameUtils to get the screen bounds
Create a spawning loop
Create a spawning loop
Pick random locations
Pick random locations
Spawn an asteroid and repeat
Spawn an asteroid and repeat
In the ready function
In the ready function
Call spawn_asteroids
Call spawn_asteroids
Add the AsteroidSpawner
Add the AsteroidSpawner
To the Main Scene
To the Main Scene
Test the game - Asteroids should spawn at random positions with random sizes
Test the game - Asteroids should spawn at random positions with random sizes
Set up Layers to handle collisions
Set up Layers to handle collisions
Click Player node in Player scene
Click Player node in Player scene
In the Collision property
In the Collision property
Click the 3 dots next to layer
Click the 3 dots next to layer
Choose Edit Layer Names
Choose Edit Layer Names
Set the layer names:
Layer 1: player
Layer 2: bullet
Layer 3: asteroid
Layer 4: ufo
Layer 5: ufo_bullet
Set the layer names:
Layer 1: player
Layer 2: bullet
Layer 3: asteroid
Layer 4: ufo
Layer 5: ufo_bullet
Now set the Layer and Mask
Now set the Layer and Mask
For the Player
For the Player
Now set the Layer and Mask
Now set the Layer and Mask
For the Asteroid
For the Asteroid
Connect the body entered signal
Connect the body entered signal
For the Asteroid
For the Asteroid
Code the signal
Code the signal
To destroy the player
To destroy the player
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