Pirate shooting balls at skeletons, using physics

The project developed during a presentation Coding games using Castle Game Engine and Delphi (Dev Days of Summer 2024).

Download the compiled binaries from snapshot release.

Features shown

• First of all, using Castle Game Engine, our open-source 3D and 2D game engine with comfortable editor and powerful API using modern Pascal.

• 2 views, main menu and game.

• Viewport with 3D scenes designed in the editor.

• Handling input in code, to move the player.

• Using reusable designs to define a missile (ball with a TCastleRigidBody component.

• Using TCastleComponentFactory and TCastleTimer to spawn the missiles.

• Using physics with collision events to detect when the missile hits the enemy.

• Using behaviors to implement simple movement on the enemy.

Screenshots

Version at presentation

No cheating, this was created in ~1 hour, from absolute scratch and you can watch how it happened and see all my mistakes on the video!

... after the recording I only did really small stuff:

• reworked OnCollisionEnter to use 1 method SkeletonCollides for all 3 enemies (during recording I already mentioned this bit of code could be better, I was just in a hurry),
• fixed FPC compatilibity,
• added README and screnshots,
• added .github workflow to build the project using GitHub Actions,
• better colliders, cache to load cliffs faster.

Authors and license

Code:

• By Michalis Kamburelis.
• License: BSD 3-Clause License (see the LICENSE file). Basically, do what you want.
• Support the engine on Patreon!

Data (all pirate-themed assets):

• By Quaternius.

• License: public domain. Literally do what you want.

• In this project, we used many assets from his Pirate Kit.

  The subdirectory data/pirates/ in this repo contains a subset of the assets from this pack. We only removed unused assets to minimize snapshot release size. We refer to the assets there from engine design files (.castle-user-interface) created using the engine editor.

• Support the creator on Patreon!

Building

Using Castle Game Engine.

Compile by:

• CGE editor. Just use menu items "Compile" or "Compile And Run".

• Or use CGE command-line build tool. Run castle-engine compile in this directory.

• Or use Lazarus. Open in Lazarus creature_behaviors_standalone.lpi file and compile / run from Lazarus. Make sure to first register CGE Lazarus packages.

• Or use Delphi. Open in Delphi creature_behaviors_standalone.dproj file and compile / run from Delphi. See CGE and Delphi documentation for details.