From 0a46bb50adfd8b082857a3a1efe0bbd2b5272f7e Mon Sep 17 00:00:00 2001
From: iutbgdin <iutbgdin@iutabgdinvm-184.iutbourg.univ-lyon1.fr>
Date: Thu, 9 Oct 2025 12:28:36 +0200
Subject: [PATCH] readme

---
 README.md    | 23 ++++++++++++++++++-----
 src/main.cpp |  3 +++
 2 files changed, 21 insertions(+), 5 deletions(-)

diff --git a/README.md b/README.md
index 1391f74..66c46fc 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,17 @@
 # 3d-render
 
-## `.obj` files
+## Files
+
+This program use two kind of files to represent a 3D world:
+- `obj` which are a list of planes representing an object.
+- `map` which are a list of object representing the the world itself.
+
+Only one map file can be use at time and a map can reference other maps.
+Anything in a map is relative to the base point of the map, which is (0, 0, 0) for the 'top map' contain everything else. A map point is fix a can't be negative. An object point is relative to the map point and can be negative.
+
+### `.obj` files
+
+0,0,0 is the bottom-left-front point of the object. It is used to translate the object in the 3D map.
 
 Syntaxe
 ```
@@ -16,17 +27,19 @@ OBJECT
 
 ```
 
-## `.map` files
+### `.map` files
+
+Calling a map file from a map file will change the reference point of the called map from fixed to relative to the current map.
 
 Syntaxe
 ```
 MAP <- header
-Call object file -> x,y,z <- object position : name <- Object name
+Call object/map file: x,y,z <- object position : filename
 ```
 
 Example
 ```
 MAP
-1,5,0:cube
-2.3,2.0,6:light
+1,5,0:cube.map
+2.3,2.0,6:light.obj
 ```
diff --git a/src/main.cpp b/src/main.cpp
index e69de29..f4403b1 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -0,0 +1,3 @@
+int main {
+	return 0;
+}