From b6265c6b61c182deb61ad5c33106367fc6d9f21c Mon Sep 17 00:00:00 2001
From: Pierre <Nobdy@disroot.org>
Date: Tue, 29 Sep 2026 21:33:25 +0200
Subject: [PATCH] separated physics thread from graphics

---
 main.c | 60 ++++++++++++++++++++++++++++++++++++++--------------------
 1 file changed, 39 insertions(+), 21 deletions(-)

diff --git a/main.c b/main.c
index 179694b..9810880 100644
--- a/main.c
+++ b/main.c
@@ -1,4 +1,6 @@
 #include <math.h>
+#include <time.h>
+#include <pthread.h>
 #include <raylib.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -16,7 +18,7 @@ int center_x_text(const char *text, int width, int size) {
   return (width - MeasureText(text, size)) / 2;
 }
 
-int center_y_text(int height, int size) { return (height - size) / 2; }
+static inline int center_y_text(int height, int size) { return (height - size) / 2; }
 
 Vector2 transform_to_center(Vector2 v) {
   int width = GetRenderWidth();
@@ -122,17 +124,46 @@ typedef struct universe {
   mass_body_t *bodies;
 } universe_t;
 
-void *physics(void *args) {}
+void *physics(void *args) {
+  universe_t* uni= (universe_t*)args;
+  mass_body_t body_1;
+  mass_body_t body_2;
+  Vector2 collision;
+  while(true){
+      for(unsigned int i=0;i<uni->num_bodies;i++){
+          body_1=uni->bodies[i];
+          printf("body %d pos is : %f %f \n speed is : %f %f\n",i,uni->bodies[i].position.x,uni->bodies[i].position.y,uni->bodies[i].speed.x,uni->bodies[i].speed.x);
+          body_1.position = vec2_sum(&body_1.position, &body_1.speed);
+          printf("body %d pos is : %f %f \n speed is : %f %f\n",i,uni->bodies[i].position.x,uni->bodies[i].position.y,uni->bodies[i].speed.x,uni->bodies[i].speed.x);
+          for(unsigned int y=0;y<uni->num_bodies;y++){
+              body_2=uni->bodies[y];
+              collision = body_collision(&body_1, &body_2);
+              if(!vec2_is_null(collision)){
+                  collide(&body_1,&body_2,&collision,1.0);
+              }
+              uni->bodies[y]=body_2;
+          }
+        collision = edge_collision(&body_1);
+        if (!vec2_is_null(collision)) {
+            collide_rigid(&body_1, &collision, 1.0);
+        }
+        uni->bodies[i]=body_1;
+      }
+  }
+}
 
 int main(void) {
+  pthread_t physics_thread;
   const char *welcome_text = "Welcome to Fucked Physics!";
   universe_t universe = {0, NULL};
-
+  pthread_create(&physics_thread,NULL,physics,(void*)&universe);
   universe.bodies = malloc(1024 * sizeof(mass_body_t));
 
   mass_body_t body_1 = {100, 50, {-200, -100}, {0.5, 0.1}};
   mass_body_t body_2 = {100, 50, {200, 0}, {-0.5, 0}};
-
+  universe.bodies[0]=body_1;
+  universe.bodies[1]=body_2;
+  universe.num_bodies=2;
   SetConfigFlags(FLAG_WINDOW_RESIZABLE);
   InitWindow(800, 450, "Fucked Physics");
   SetTargetFPS(120);
@@ -141,28 +172,15 @@ int main(void) {
 
     BeginDrawing();
     ClearBackground(RAYWHITE);
-    DrawCircleV(transform_to_center(body_1.position), body_1.radius, RED);
-    DrawCircleV(transform_to_center(body_2.position), body_2.radius, GREEN);
-    body_1.position = vec2_sum(&body_1.position, &body_1.speed);
-    body_2.position = vec2_sum(&body_2.position, &body_2.speed);
-
-    Vector2 collision = body_collision(&body_1, &body_2);
-    if (!vec2_is_null(collision)) {
-      collide(&body_1, &body_2, &collision, 1.0);
+    for(unsigned int i=0;i<universe.num_bodies;i++){
+        DrawCircleV(transform_to_center(universe.bodies[i].position), universe.bodies[i].radius, (Color){((256/universe.num_bodies)*i)%256,255*(i%2),255*(i%2)*(i%3),255});
     }
 
-    collision = edge_collision(&body_1);
-    if (!vec2_is_null(collision)) {
-      collide_rigid(&body_1, &collision, 2.0);
-    }
 
-    collision = edge_collision(&body_2);
-    if (!vec2_is_null(collision)) {
-      collide_rigid(&body_2, &collision, 2.0);
-    }
+
 
     DrawText(welcome_text, center_x_text(welcome_text, GetRenderWidth(), 20),
-             center_y_text(GetRenderHeight(), 20), 20, BLACK);
+    center_y_text(GetRenderHeight(), 20), 20, BLACK);
     EndDrawing();
   }