praca_magisterska/games/unreal/tutorial/part-9-cpp-final-setup.md

Part 9 (C++): Final Setup

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Overview

Polish the game with visual assets, materials, and final tweaks.

Time: ~15 minutes

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Step 9.1: Assign Better Visuals to Blueprints

Now we use Blueprints for what they're good at: assigning visual assets!

BP_Player:

1. Open BP_Player
2. Select ShipMesh component
3. In Details:
   • Static Mesh → Keep Cone or choose a spaceship model
   • Material → Create or assign a green emissive material
4. Compile and Save

BP_Enemy:

1. Open BP_Enemy
2. Select MeshComp component
3. In Details:
   • Static Mesh → Keep Cube or choose enemy model
   • Material → Create or assign a red emissive material
4. Compile and Save

BP_Bullet (if you created one):

1. Same process - assign materials for player (green) vs enemy (red) bullets

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Step 9.2: Create Background

1. In level, add Plane (from Place Actors → Basic → Plane)
2. Scale it large (Scale: 50, 50, 1)
3. Position below player (Z: -100)
4. Assign dark material (black or dark blue)
5. This provides contrast for bullets and enemies

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Step 9.3: Adjust Camera

If camera needs adjustment:

1. Select BP_Player in level
2. Find SpringArm component
3. Adjust:
   • Target Arm Length - Higher = further away camera
   • Socket Offset - Adjust view position

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Step 9.4: Final Testing

Press Play and verify:

Gameplay:

• ✅ Player moves smoothly with WASD
• ✅ Player fires green bullets in spread pattern
• ✅ Enemies spawn from top
• ✅ Enemies move in sine wave pattern
• ✅ Enemies fire red bullet bursts
• ✅ Collision detection works (bullets hit enemies, enemies hit player)
• ✅ Score increases when enemies destroyed
• ✅ Lives decrease when hit
• ✅ Special ability clears screen (X key)
• ✅ Timer counts down
• ✅ Victory after 300 seconds
• ✅ Game over if lives reach 0

Visual Polish:

• ✅ Player and enemies have distinct colors
• ✅ Bullets are visible and distinguishable
• ✅ UI is readable
• ✅ Background provides good contrast

Performance:

• ✅ 60 FPS with 100+ bullets on screen
• ✅ No lag or stuttering

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Step 9.5: Build Standalone Game (Optional)

To build a playable executable:

1. File → Package Project → Windows (or Linux)
2. Choose output folder
3. Wait for build (5-10 minutes)
4. Run the .exe file from output folder

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Completion Summary

Total Time Comparison

Part	Blueprint	C++	Time Saved
1. Project Setup	5 min	10 min	-5 min
2. Player	60 min	15 min	45 min ⚡
3. Bullet	30 min	10 min	20 min ⚡
4. Enemy	90 min	25 min	65 min ⚡
5. Spawner	40 min	10 min	30 min ⚡
6. Game Director	45 min	10 min	35 min ⚡
7. UI	30 min	15 min	15 min ⚡
8. Game Mode	20 min	5 min	15 min ⚡
9. Final Setup	40 min	15 min	25 min ⚡
TOTAL	6-8 hours	2-3 hours	4-5 hours saved! ⚡⚡⚡

Key Benefits Achieved

✅ 90% faster variable definition - copy-paste vs clicking
✅ Version control friendly - readable C++ diffs instead of binary Blueprints
✅ Type-safe - compiler catches errors before runtime
✅ IDE support - autocomplete, refactoring, debugging
✅ Easier to maintain - code is documentation
✅ Reusable - copy C++ files to new projects instantly

Hybrid Approach Used

• C++ for logic - All game mechanics, variables, algorithms
• Blueprints for visuals - Meshes, materials, colors
• Best of both worlds - Fast development + visual asset management

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What's Next?

Extend the game:

• Add power-ups
• Multiple enemy types
• Boss battles
• Sound effects and music
• Particle effects
• Leaderboard system

All easily done in C++ with the same copy-paste efficiency!

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Congratulations! 🎉

You've built a complete bullet-hell game in Unreal Engine using C++ in 2-3 hours instead of 6-8 hours with Blueprints!

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