Sky Hopper

This game is served for educational purposes only. Please contact to linhkhoiluong@gmail.com before using it as references.

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Description

A fast-paced vertical arcade game where you control a bouncing ball by tapping the screen. Each tap propels the ball upward as you navigate through a series of challenging obstacles. Time your taps carefully to avoid hazards and reach the top.

Techniques used

• Version Control (Git)
• Scriptable Render Pipeline (URP)
• New Input System
• Cinemachine (Virtual Camera + Confiner + Impulse)
• Renderer (Trail + Line + Sprite)
• Rigidbody 2D
• Collider (Edge + Circle + Box + Polygon + Capsule)
• Particle Effect
• Scriptable Object
• Prefab + Prefab Variant
• Coroutine
• UI (Unity UI tookit + uGUI)
• Texture + Shader + Material
• Post-processing (Bloom)
• Joint (Hinge Joint 2D)
• Effector (Area Effector 2D)
• Skinning Editor
• Design Pattern / Game Programming Pattern: Singleton, Object Pool
• Boids
• Multithreaded Programming (Job System + Burst Compile)
• DOTween
• Optimization (Profiler)
• Debugging (Gizmo)
• Save & Loading System (SQLite-net + StreammingAssets, PlayerPrefs)
• Google Admob + In-App purchase + Monetization & Tracking tools
• Localization
• Unity MCP + Cursor

Ongoing features

• Optimazation: Morton Code + Quadtree
• Raycast
• Audio Mixer
• Addressable
• Daily Rewards
• Lucky Wheel
• Inventory + Shop
• Timeline
• Loading Screen
• Scene Transition
• Text Animation
• Mobile Native API (Push Notifications, Vibration, Accelerometer)
• Infinite Mode

Level Design

Easy

• Level 1: Circular Line (spin speed: 40) + Ping Pong (speed : 8)
• Level 2: Wall Crusher (speed: 8) + Dual Fan (spin speed: 40)
• Level 3: Clockhand (spin speed: 40) + Spaceship (speed: 3)
• Level 4: Boidzone (min speed: 5, max speed: 7, num: 20)
• Level 5: Dual Ammo Shooter (spin speed: 20, ammo speed: 10, ammo range: 7) + Dual Flow/Stream (speed: 6)

Medium

• Level 6: Balloons (scale duration: 1, scale delay: 0.5) + Dual Homing Missles (speed: 4, spin speed: 200, lifetime: 2.5, detection range: 10, activation delay: 0.5)
• Level 7: Trapdoor (spin speed: 100, angular: 90 - 270 deg, ping pong) + Ball & Chain (force: 50) + Circular Line (spin speed: 50, navigated)
• Level 8:
• Level 9:
• Level 10:
• Level 11:
• Level 12:
• Level 13:
• Level 14:
• Level 15:

Hard

• Level 16:
• Level 17:
• Level 18:
• Level 19:
• Level 20:

Notes

• URP Setup:

  • Window -> Package Manager -> Unity Registry -> Universal RP
  • Assets -> Create -> Rendering -> URP asset
  • Edit -> Project Settings -> Graphics -> Assign URP asset

• Making a chain effect:

  • Sprite Editor -> Skinning Editor -> Create Bones -> Auto Geometry -> Generate For Selected
  • Create Chain object -> Assign Sprite Skin component -> Create bones -> Assign Hinge Joint 2D component for each children bone object -> Assign its connected rigidbody (in Hinge Joint 2D component) for each bone consecutively -> Bone_0 assign with an Anchor object
  • Tuning for better effect (Rigidbody's mass, Hinge Joint 2D's Angle limits)

• Script Execution Order:

  • Edit -> Project Settings -> Script Excution Order
  • Lower value -> more prioritized

• Shield Effect

  • Create Shield Shader (Create -> Shader Graph -> URP -> Unlit Shader Graph)
  • Create Shield Material
  • Create Shield Particle System (with only 1 particle generated and use Shield Material as material)

• Integrating Unity UI Toolkit

  • Hierachy -> UI Toolkit -> UI Document
  • Project -> Create -> UI Toolkit -> UI Document
  • Drag newly created Visual Tree Asset to UI Document component
  • Tuning settings in Panel Settings

• Localization:

  • Install Localization in Package Manager (Window -> Package Manager -> Unity Registry -> Install)
  • Edit -> Project Settings -> Localization -> Add locale (Add languages that you want to support for your game)
  • Set default language in Project Locale Identifier & Specific Locale Selector
  • Windows -> Assets Management -> Localization Tables -> Add entry
  • Unity UI Toolkit: UI Builder -> Text -> Add bindings (only available in Unity 6+)
  • Unity UI: Add Localize String Event component -> Set string reference -> Set update string (object: Text Object, function: TextMeshProUGUI.text)
  • Must create addressable build: Window -> Asset Management -> Addressable -> Groups -> New Build

• Path:

  • Path_0, Path_1 : Flow/Stream
  • Path_2, Path_3: Ping Pong
  • Path_4, Path_5: Wall Crusher
  • Path_6: Spaceship

References

• SCREEN SHAKE in Unity using Cinemachine, Sasquatch B Studios
• Unity Manual, Unity
• Unity Universal RP Manual, Unity
• Unity Localization Package Manual, Unity
• Unity Shader GraphGraph Manual, Unity
• OBJECT POOLING in Unity, Brackeys
• Get started with UI Toolkit in Unity, Sasquatch B Studios
• Boids, ECE 4760, Spring 2020, Adams/Land
• SQLite-net, Frank A. Krueger
• NativeQuadtree, Marijn Zwemmer
• DOTween, Documentation
• Unity Localization: Add support for Multiple Languages, Root Games
• Mobile Ads SDK(Unity), Google Admob
• Unity MCP, Justin P Barnett
• Audios
• Fonts
• Sprites