To connection between the interface and gameplay updates will be handled by a global signal bus
To connection between the interface and gameplay updates will be handled by a global signal bus
Embedded Files
Create a new script in the Scripts folder
Create a new script in the Scripts folder
Called SignalBus.gd
Called SignalBus.gd
Make the script global
Make the script global
By adding it to the globals
By adding it to the globals
In Project Settings
In Project Settings
The script has three signals
The script has three signals
to update the score
to update the score
to update the lives
to update the lives
to end the game
to end the game
Now create a new scene with CanvasLayer as root
Now create a new scene with CanvasLayer as root
Rename it to HUD
Rename it to HUD
Add a Control node as child
Add a Control node as child
Set the Anchor Preset to Full Rect
Set the Anchor Preset to Full Rect
Add a MarginContainer as a child of Control
Add a MarginContainer as a child of Control
Set the Anchors Preset to Top Left
Set the Anchors Preset to Top Left
Set Left Margin to 20
Set Left Margin to 20
Set Top Margin to 20
Set Top Margin to 20
Add a VBoxContainer as a child of MarginContainer
Add a VBoxContainer as a child of MarginContainer
Add a Label as a child rename to ScoreLabel
Add a Label as a child rename to ScoreLabel
Add an HBoxContainer as a child
Add an HBoxContainer as a child
Rename to LivesContainer
Rename to LivesContainer
Add 3 Sprite2D as children
Add 3 Sprite2D as children
Add the Player.png as the texture of each Sprite
Add the Player.png as the texture of each Sprite
Place them in the scene under the score
Place them in the scene under the score
Add a script to the HUD node
Add a script to the HUD node
Create onready references to
Create onready references to
Score label and lives container
Score label and lives container
Add a variable for the score
Add a variable for the score
Create a function to update the score
Update the score variable
Update the score label
Create a function to update the score
Update the score variable
Update the score label
Create a function to update the lives
Create a variable to store how many life icons there are
Create a function to update the lives
Create a variable to store how many life icons there are
Loop through all the icons
If the number of icons is less than number of lives
Make the icon invisible
So that the number of icons displayed
Matches the number of lives the player has
Loop through all the icons
If the number of icons is less than number of lives
Make the icon invisible
So that the number of icons displayed
Matches the number of lives the player has
In the ready function
In the ready function
Set the default value for score label
Set the default value for score label
Connect the SignalBus to the new functions:
Connect the SignalBus to the new functions:
update_score and update_lives
update_score and update_lives
Assign 3 lives as initial value
Assign 3 lives as initial value
In the Asteroid script
In the Asteroid script
Update the on destroy function
Update the on destroy function
To increment points and
To increment points and
Broadcast the score signal
Broadcast the score signal
In the UFO script
In the UFO script
Add an export variable
Add an export variable
To store the UFO points
To store the UFO points
Update the area entered function
Update the area entered function
Tell the SignalBus to update the score
Tell the SignalBus to update the score
Game Over Menu and Restart Button
Game Over Menu and Restart Button
Add a CenterContainer as child of HUD node
Add a CenterContainer as child of HUD node
Rename to GameOverMenu
Rename to GameOverMenu
Add a VBoxContainer as child
Add a VBoxContainer as child
Add a Label as child
Add a Label as child
Rename to GameOverLabel
Rename to GameOverLabel
Add a Button as child
Add a Button as child
Rename to RestartButton
Rename to RestartButton
In the HUD scrupt
In the HUD scrupt
Add onready references to
GameOverMenu
GameOverLabel
RestartButton
Add onready references to
GameOverMenu
GameOverLabel
RestartButton
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