al_build_transform(3alleg5)

💖 al_build_transform 💖

okay bestie, so this one lives in the Allegro 5 API — that's the manual we're in, the whole Allegro reference manual vibe — and it's literally the shortcut girlies use to build a transformation in one go instead of doing a whole little ritual of calls. slay. ✨

---

🌸 SYNOPSIS 🌸

#include <allegro5/allegro.h>

void al_build_transform(ALLEGRO_TRANSFORM *trans, float x, float y,
   float sx, float sy, float theta)

---

🦋 DESCRIPTION 🦋

So here's the tea: this builds a transformation from some parameters you hand it. It's equivalent to calling the transformations in this order: make identity, rotate, scale, translate. Same result, bestie — but this method is faster than actually calling those functions one by one. Not me saving you four whole function calls. 💅

🎀 Parameters 🎀

• trans — the Transformation to alter. she's getting altered, your honor.
• x, y — Translation. (the moving-across-the-screen part 💫)
• sx, sy — Scale. (the make-it-bigger-or-smaller part 🌈)
• theta — Rotation angle, in radians. yes, radians. not degrees. iykyk 📐

⚠️ Note: this function was previously documented to be equivalent to a different (and more useful) order of operations: identity, scale, rotate, translate. so if you're reading old docs and going "wait that's not what it says here"— yeah. that's why. 💀

---

👑 SEE ALSO 👑

• al_translate_transform(3alleg5)
• al_rotate_transform(3alleg5)
• al_scale_transform(3alleg5)
• al_compose_transform(3alleg5)

---

and that's the whole page, bestie. this was the Allegro reference manual, al_build_transform(3alleg5), and we ate. go build some transforms. periodt. 🫶💖