Waveshooter Tutorial Series - Tutorial 10

Overview

• Objective: Improve camera shake and refactor the enemy system.
• Acknowledgment: Good job reaching tutorial number 10!

Camera Shake Improvements

• Previous camera shake method did not look good enough.
• Changes to Camera 2D Script:
  • Adjust zoom in intensity from 0.015 to a better value.
  • Remove snap-back position to (320, 180).
  • Implement Lerp for smooth transition back to base position:
    • Code Snippet: if the screen is not shaking: global position = lerp(global position, Vector2(320, 180), 0.3)
• Result: Improved visual appeal of camera shake.

Enemy System Refactor

• Goals: Create a more efficient enemy system with fewer duplications in code.

• Scene Inheritance Concept:

  • Use enemy core as a base script for all enemies.
  • Common functionalities (HP, knockback, etc.) will be inherited.
  • Avoid code duplication to simplify updates and changes.

• Implementation Steps:

  1. Create an enemy core script inheriting from Sprite.
  2. Transfer common variables (speed, HP, etc.) from the enemy script to enemy core.
  3. Update enemy script to extend enemy core.

• Custom functions for movement:

  • Create a basic movement towards player function allowing flexibility for different enemy behaviors.

Variable Management

• Introduced exported variables to allow easy editing in the editor:
  • HP, speed, knockback, screen shake can now be adjusted easily.
  • Example of exported variable: export(int) var HP = 3

Adding New Enemies

• Use scene inheritance to create variations of enemies easily:
  • Inherit from the base enemy scene (enemy.tscn).
  • Modify properties without changing base code.
  • Use unique scripts for distinct behaviors (e.g., enemy dash).

Random Enemy Spawning

• Use an export array to hold different enemy packed scenes.
• Randomize enemy selection using a new variable for enemy number.
• Code Snippet for random selection: enemy_number = randi() % enemies.size()

Final Notes

• Refactor improves flexibility and ease of adding content.
• Future work includes addressing blood particle colors and fading effects.
• Encourage students to explore and expand upon these concepts in their projects.