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Hacker News front pageMichalis Kamburelis, Castle Game Engine Developers111 min readtutorialintro

Modern Object Pascal Introduction for Programmers – Castle Game Engine

Read on castle-engine.ioHN 201·90 comments

Summary

The piece is a concise tutorial introducing modern Object Pascal, showing how to write and compile simple programs with Free Pascal or Delphi and covering core syntax, functions, conditionals, and compiler modes. It highlights Pascal’s modern features and practical tips for cross‑platform development with the Castle Game Engine.

  • Object Pascal offers modern features (classes, generics, interfaces) comparable to C++/Java while remaining type‑safe and native‑compiled.
  • Both Free Pascal (FPC) and Delphi can share source files using {$ifdef} guards, letting you target either compiler without duplication.
  • A minimal program needs only mode directives, a program block, and WriteLn; compilation is a single fpc command or IDE click.
  • Functions return values via the implicit Result variable; Exit can return early, mirroring return in C‑like languages.

Pascal developers or engineers evaluating a modern, cross‑platform compiled language should read this to get up‑to‑speed quickly.

6/10
programming languagestutorialpascalfpcdelphi

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