removed init.c and moved init-multi.c to init.c

16 files changed, 131 insertions, 233 deletions

diff --git a/build.sh b/build.sh
index 2c3d3b9..e32a8cb 100755
--- a/build.sh
+++ b/build.sh
@@ -13,15 +13,15 @@ done
 shift $((OPTIND-1))
 [ "${1:-}" = "--" ] && shift
 
-if [[ "$1" ]]; then
-    echo making src/$1
+if [ "$1" ]; then
+    echo "making src/$1"
     file="src/$1"
     clang -o bin/$(basename $file | sed 's/.c$//') $file $LIB `sdl2-config --cflags --libs` -lm $DEBUG
 else
     for file in src/*; do 
         if [ -f "$file" ]; then 
-            if [[ "$file" != ".clangd" ]]; then
-                echo making $file
+            if [ "$file" != ".clangd" ]; then
+                echo "making $file"
                 clang -o bin/$(basename $file | sed 's/.c$//') $file $LIB `sdl2-config --cflags --libs` -lm $DEBUG
             fi
         fi 
diff --git a/lib/init-multi.c b/lib/init-multi.c
deleted file mode 100755
index 734835c..0000000
--- a/lib/init-multi.c
+++ /dev/null
@@ -1,74 +0,0 @@
-#include <stdio.h>
-#include <stdbool.h>
-#include <time.h>
-#include <init-multi.h>
-
-#include <SDL2/SDL.h>
-#include <SDL2/SDL_video.h>
-
-int main(int argc, char *argv[])
-{
-	if (SDL_InitSubSystem(SDL_INIT_VIDEO) < 0)
-		SDL_Log("SDL fails to initialize! %s\n", SDL_GetError());
-
-    int startw=600;
-    int starth=600;
-
-	SDL_Window *window = SDL_CreateWindow(PROJECT_NAME, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, startw, starth, SDL_WINDOW_SHOWN | SDL_WINDOW_OPENGL);
-	if (!window) {
-		printf("Failed to create window: %s\n", SDL_GetError());
-	}
-	SDL_Renderer *renderer = SDL_CreateRenderer(window,-1,SDL_RENDERER_SOFTWARE);
-	if (!renderer) {
-		printf("Failed to create renderer: %s\n", SDL_GetError());
-	}
-
-    srand(time(NULL));
-    OBJECT_INER obj_storage[obj_n];
-
-    STUFFS stuff = {
-        startw,
-        starth,
-        false,
-        0,
-        0,
-        (OBJECT){},
-    };
-
-    init_stuffs(startw,starth,obj_storage,&stuff);
-
-
-    for (int i = 0; i < obj_n; i++)
-        stuff.obj.objs[i] = &obj_storage[i];
-
-    SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_BLEND);
-
-	bool quit = false;
-	SDL_Event e;
-	while (!quit) {
-		while (SDL_PollEvent(&e)) {
-			if (e.type == SDL_QUIT) {
-				quit = true;
-			}
-			else if(e.type == SDL_MOUSEBUTTONDOWN){
-				if(e.button.button==SDL_BUTTON_LEFT){
-                    stuff.mousedown=true;
-				} else if(e.button.button==SDL_BUTTON_RIGHT){
-				}
-			} else if(e.type==SDL_MOUSEBUTTONUP){
-                stuff.mousedown=false;
-			}
-            stuff.mx=e.button.x;
-            stuff.my=e.button.y;
-		}
-		draw(renderer,window,&stuff);
-		SDL_Delay(10);
-	}
-
-    SDL_DestroyRenderer(renderer);
-    SDL_DestroyWindow(window);
-    SDL_QuitSubSystem(SDL_INIT_VIDEO);
-    SDL_Quit();
-
-	return 0;
-}
diff --git a/lib/init-multi.h b/lib/init-multi.h
deleted file mode 100755
index 72bb366..0000000
--- a/lib/init-multi.h
+++ /dev/null
@@ -1,15 +0,0 @@
-#ifndef inithell
-#define inithell
-
-#include <stdio.h>
-#include <stdbool.h>
-
-typedef struct{
-    int width;
-    int height;
-    bool mousedown;
-    int mx;
-    int my; 
-    OBJECT obj;
-} STUFFS;
-#endif
diff --git a/lib/init.c b/lib/init.c
index 6adb878..5e32a4b 100755..100644
--- a/lib/init.c
+++ b/lib/init.c
@@ -11,8 +11,8 @@ int main(int argc, char *argv[])
 	if (SDL_InitSubSystem(SDL_INIT_VIDEO) < 0)
 		SDL_Log("SDL fails to initialize! %s\n", SDL_GetError());
 
-    int startw=400;
-    int starth=400;
+    int startw=600;
+    int starth=600;
 
 	SDL_Window *window = SDL_CreateWindow(PROJECT_NAME, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, startw, starth, SDL_WINDOW_SHOWN | SDL_WINDOW_OPENGL);
 	if (!window) {
@@ -23,9 +23,8 @@ int main(int argc, char *argv[])
 		printf("Failed to create renderer: %s\n", SDL_GetError());
 	}
 
-
     srand(time(NULL));
-    OBJECT obj = init_stuffs(startw,starth);
+    OBJECT_INER obj_storage[obj_n];
 
     STUFFS stuff = {
         startw,
@@ -33,9 +32,17 @@ int main(int argc, char *argv[])
         false,
         0,
         0,
-        &obj,
+        (OBJECT){},
     };
 
+    init_stuffs(startw,starth,obj_storage,&stuff);
+
+
+    for (int i = 0; i < obj_n; i++)
+        stuff.obj.objs[i] = &obj_storage[i];
+
+    SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_BLEND);
+
 	bool quit = false;
 	SDL_Event e;
 	while (!quit) {
diff --git a/lib/init.h b/lib/init.h
index a4d9736..72bb366 100755..100644
--- a/lib/init.h
+++ b/lib/init.h
@@ -10,6 +10,6 @@ typedef struct{
     bool mousedown;
     int mx;
     int my; 
-    OBJECT *obj;
+    OBJECT obj;
 } STUFFS;
 #endif
diff --git a/lib/global_objects.c b/lib/vectorlib.c
index 2e3f2fd..2e3f2fd 100644
--- a/lib/global_objects.c
+++ b/lib/vectorlib.c
diff --git a/src/1-1-walker.c b/src/1-1-walker.c
index ba8f696..5b3d0e1 100755..100644
--- a/src/1-1-walker.c
+++ b/src/1-1-walker.c
@@ -5,32 +5,34 @@
 #include <SDL2/SDL_video.h>
 
 #define PROJECT_NAME "vectors-walker"
+#define obj_n 1
 
-typedef struct {
+typedef struct OBJECT_INER {
     float x;
     float y;
+} OBJECT_INER;
+
+typedef struct OBJECT {
+    OBJECT_INER *objs[obj_n];
 } OBJECT;
 
 #include <init.h>
 
-void constructor(int w, int h, OBJECT *obj){
+void constructor(int w, int h, OBJECT_INER *obj){
     obj->x = (float)w/2;
     obj->y = (float)h/2;
 }
 
-OBJECT init_stuffs(int w, int h){
-    OBJECT obj;
-    constructor(w,h,&obj);
-
-    return obj;
+void init_stuffs(int w, int h, OBJECT_INER *objs, STUFFS *stuff){
+    constructor(w,h,&objs[0]);
 }
 
-void update(OBJECT *obj){
+void update(OBJECT_INER *obj){
     obj->x = obj->x + (rand() % 2 - 0.5);
     obj->y = obj->y + (rand() % 2 - 0.5);
 }
 
-void show(SDL_Renderer* renderer,OBJECT *obj){
+void show(SDL_Renderer* renderer,OBJECT_INER *obj){
     SDL_SetRenderDrawColor(renderer,150,50,255,255);
     SDL_RenderDrawPoint(renderer,obj->x,obj->y);
 }
@@ -39,15 +41,11 @@ void draw(SDL_Renderer* renderer,SDL_Window* window, STUFFS *stuff){
     //SDL_SetRenderDrawColor(renderer,0,0,0,255);
     //SDL_RenderClear(renderer);
 
-    update(stuff->obj);
-    show(renderer,stuff->obj);
+    update(stuff->obj.objs[0]);
+    show(renderer,stuff->obj.objs[0]);
 
 	SDL_RenderPresent(renderer);
 	//SDL_UpdateWindowSurface(window);
 }
 
-void mousePressed(STUFFS *stuff){
-
-}
-
 #include <init.c>
diff --git a/src/1-2-vec-math.c b/src/1-2-vec-math.c
index 201bbc0..b4e2c1e 100755..100644
--- a/src/1-2-vec-math.c
+++ b/src/1-2-vec-math.c
@@ -1,37 +1,39 @@
 #include <stdbool.h>
-#include <global_objects.c>
+#include <vectorlib.c>
 
 #include <SDL2/SDL.h>
 #include <SDL2/SDL_video.h>
 
 #define PROJECT_NAME "vectors-vec math"
+#define obj_n 1
 
-typedef struct {
+typedef struct OBJECT_INER {
     Point pos;
     Point vel;
+} OBJECT_INER;
+
+typedef struct OBJECT {
+    OBJECT_INER *objs[obj_n];
 } OBJECT;
 
 #include <init.h>
 
-void constructor(int w, int h, OBJECT *obj){
+void constructor(int w, int h, OBJECT_INER *obj){
     obj->pos.x = (float)w/2;
     obj->pos.y = (float)h/2;
     obj->vel.x = 1;
     obj->vel.y = -1;
 }
 
-OBJECT init_stuffs(int w, int h){
-    OBJECT obj;
-    constructor(w,h,&obj);
-
-    return obj;
+void init_stuffs(int w, int h, OBJECT_INER *objs, STUFFS *stuff){
+    constructor(w,h,&objs[0]);
 }
 
-void update(OBJECT *obj){
+void update(OBJECT_INER *obj){
     point_add(&obj->pos, &obj->vel);
 }
 
-void show(SDL_Renderer* renderer,OBJECT *obj){
+void show(SDL_Renderer* renderer,OBJECT_INER *obj){
     SDL_SetRenderDrawColor(renderer,150,50,255,255);
     SDL_RenderFillRect(renderer,&(SDL_Rect){.x = obj->pos.x - 5, .y=obj->pos.y - 5, .w = 10, .h = 10});
 }
@@ -40,14 +42,10 @@ void draw(SDL_Renderer* renderer,SDL_Window* window, STUFFS *stuff){
     SDL_SetRenderDrawColor(renderer,0,0,0,255);
     SDL_RenderClear(renderer);
 
-    update(stuff->obj);
-    show(renderer,stuff->obj);
+    update(stuff->obj.objs[0]);
+    show(renderer,stuff->obj.objs[0]);
 
 	SDL_RenderPresent(renderer);
 }
 
-void mousePressed(STUFFS *stuff){
-
-}
-
 #include <init.c>
diff --git a/src/1-3-rand-vec.c b/src/1-3-rand-vec.c
index a5289d5..992a81a 100755..100644
--- a/src/1-3-rand-vec.c
+++ b/src/1-3-rand-vec.c
@@ -1,27 +1,29 @@
 #include <stdbool.h>
-#include <global_objects.c>
+#include <vectorlib.c>
 
 #include <SDL2/SDL.h>
 #include <SDL2/SDL_video.h>
 
 #define PROJECT_NAME "vectors-rand vec"
+#define obj_n 1
 
-typedef struct {
+typedef struct OBJECT_INER {
     Point pos;
+} OBJECT_INER;
+
+typedef struct OBJECT {
+    OBJECT_INER *objs[obj_n];
 } OBJECT;
 
 #include <init.h>
 
-void constructor(int w, int h, OBJECT *obj){
+void constructor(int w, int h, OBJECT_INER *obj){
     obj->pos.x = (float)w/2;
     obj->pos.y = (float)h/2;
 }
 
-OBJECT init_stuffs(int w, int h){
-    OBJECT obj;
-    constructor(w,h,&obj);
-
-    return obj;
+void init_stuffs(int w, int h, OBJECT_INER *objs, STUFFS *stuff){
+    constructor(w,h,&objs[0]);
 }
 
 void update(STUFFS *stuff){
@@ -31,14 +33,14 @@ void update(STUFFS *stuff){
     float random_mul = RandomFloat(50, 100);
     point_mul(&rand_point,&(Point){.x = random_mul, .y = random_mul});
 
-    stuff->obj->pos.x = rand_point.x + (float)stuff->width / 2;;
-    stuff->obj->pos.y = rand_point.y + (float)stuff->height / 2;
+    stuff->obj.objs[0]->pos.x = rand_point.x + (float)stuff->width / 2;;
+    stuff->obj.objs[0]->pos.y = rand_point.y + (float)stuff->height / 2;
 }
 
 void show(SDL_Renderer* renderer,STUFFS *stuff){
     SDL_SetRenderDrawColor(renderer,150,50,255,255);
     //SDL_RenderFillRect(renderer,&(SDL_Rect){.x = obj->pos.x - 5, .y=obj->pos.y - 5, .w = 10, .h = 10});
-    SDL_RenderDrawLine(renderer,stuff->width/2,stuff->height/2,stuff->obj->pos.x,stuff->obj->pos.y);
+    SDL_RenderDrawLine(renderer,stuff->width/2,stuff->height/2,stuff->obj.objs[0]->pos.x,stuff->obj.objs[0]->pos.y);
 }
 
 void draw(SDL_Renderer* renderer,SDL_Window* window, STUFFS *stuff){
@@ -51,8 +53,4 @@ void draw(SDL_Renderer* renderer,SDL_Window* window, STUFFS *stuff){
 	SDL_RenderPresent(renderer);
 }
 
-void mousePressed(STUFFS *stuff){
-
-}
-
 #include <init.c>
diff --git a/src/1-5-unit-vec.c b/src/1-5-unit-vec.c
index b888b13..1f3acbb 100755..100644
--- a/src/1-5-unit-vec.c
+++ b/src/1-5-unit-vec.c
@@ -1,27 +1,29 @@
 #include <stdbool.h>
-#include <global_objects.c>
+#include <vectorlib.c>
 
 #include <SDL2/SDL.h>
 #include <SDL2/SDL_video.h>
 
 #define PROJECT_NAME "vectors-unit vec"
+#define obj_n 1
 
 typedef struct {
     Point pos;
+} OBJECT_INER;
+
+typedef struct OBJECT {
+    OBJECT_INER *objs[obj_n];
 } OBJECT;
 
 #include <init.h>
 
-void constructor(int w, int h, OBJECT *obj){
+void constructor(int w, int h, OBJECT_INER *obj){
     obj->pos.x = (float)w/2;
     obj->pos.y = (float)h/2;
 }
 
-OBJECT init_stuffs(int w, int h){
-    OBJECT obj;
-    constructor(w,h,&obj);
-
-    return obj;
+void init_stuffs(int w, int h, OBJECT_INER *objs, STUFFS *stuff){
+    constructor(w,h,&objs[0]);
 }
 
 void normalize(Point *p){
@@ -32,7 +34,7 @@ void draw(SDL_Renderer* renderer,SDL_Window* window, STUFFS *stuff){
     SDL_SetRenderDrawColor(renderer,0,0,0,255);
     SDL_RenderClear(renderer);
 
-    Point pos = { 200,200 };
+    Point pos = { 300,300 };
     Point mouse = {stuff->mx, stuff->my};
 
     Point v = {
@@ -55,8 +57,4 @@ void draw(SDL_Renderer* renderer,SDL_Window* window, STUFFS *stuff){
 	SDL_RenderPresent(renderer);
 }
 
-void mousePressed(STUFFS *stuff){
-
-}
-
 #include <init.c>
diff --git a/src/1-6-mover.c b/src/1-6-mover.c
index d4535d5..a59fa91 100755..100644
--- a/src/1-6-mover.c
+++ b/src/1-6-mover.c
@@ -1,22 +1,27 @@
 #include <stdlib.h>
 #include <stdbool.h>
-#include <global_objects.c>
+#include <vectorlib.c>
 
 #include <SDL2/SDL.h>
 #include <SDL2/SDL_video.h>
 #include <time.h>
 
 #define PROJECT_NAME "vectors-mover"
+#define obj_n 1
 
 typedef struct {
     Point pos;
     Point vel;
     Point acc;
+} OBJECT_INER;
+
+typedef struct OBJECT {
+    OBJECT_INER *objs[obj_n];
 } OBJECT;
 
 #include <init.h>
 
-void constructor(int w, int h, OBJECT *obj){
+void constructor(int w, int h, OBJECT_INER *obj){
     obj->pos.x = (float)w/2;
     obj->pos.y = (float)h/2;
     obj->vel.x = RandomFloat(-1, 1);
@@ -27,12 +32,9 @@ void constructor(int w, int h, OBJECT *obj){
     point_set_mag(&obj->acc, 0.01);
 }
 
-OBJECT init_stuffs(int w, int h){
+void init_stuffs(int w, int h, OBJECT_INER *objs, STUFFS *stuff){
     srand(time(NULL));
-    OBJECT obj;
-    constructor(w,h,&obj);
-
-    return obj;
+    constructor(w,h,&objs[0]);
 }
 
 Point vec_sub(Point A, Point B){
@@ -40,41 +42,37 @@ Point vec_sub(Point A, Point B){
     return A;
 }
 
-void update(STUFFS *stuff){
+void update(STUFFS *stuff, OBJECT_INER *obj){
     Point mouse = {
         stuff->mx,
         stuff->my,
     };
 
-    stuff->obj->acc = vec_sub(mouse, stuff->obj->pos);
-    point_set_mag(&stuff->obj->acc, 1);
+    obj->acc = vec_sub(mouse, obj->pos);
+    point_set_mag(&obj->acc, 1);
 
     //stuff->obj->acc.x = RandomFloat(-1, 1);
     //stuff->obj->acc.y = RandomFloat(-1, 1);
 
-    point_add(&stuff->obj->vel,&stuff->obj->acc);
-    point_limit(&stuff->obj->vel, 5);
+    point_add(&obj->vel,&obj->acc);
+    point_limit(&obj->vel, 5);
 
-    point_add(&stuff->obj->pos, &stuff->obj->vel);
+    point_add(&obj->pos, &obj->vel);
 }
 
-void show(SDL_Renderer* renderer,STUFFS *stuff){
+void show(SDL_Renderer* renderer,OBJECT_INER *obj){
     SDL_SetRenderDrawColor(renderer,150,50,255,255);
-    SDL_RenderFillRect(renderer,&(SDL_Rect){.x = stuff->obj->pos.x - 5, .y=stuff->obj->pos.y - 5, .w = 10, .h = 10});
+    SDL_RenderFillRect(renderer,&(SDL_Rect){.x = obj->pos.x - 5, .y=obj->pos.y - 5, .w = 10, .h = 10});
 }
 
 void draw(SDL_Renderer* renderer,SDL_Window* window, STUFFS *stuff){
     SDL_SetRenderDrawColor(renderer,0,0,0,255);
     SDL_RenderClear(renderer);
 
-    update(stuff);
-    show(renderer,stuff);
+    update(stuff, stuff->obj.objs[0]);
+    show(renderer,stuff->obj.objs[0]);
 
 	SDL_RenderPresent(renderer);
 }
 
-void mousePressed(STUFFS *stuff){
-
-}
-
 #include <init.c>
diff --git a/src/2-1-gravity-wind.c b/src/2-1-gravity-wind.c
index a5a2bb2..8e3be27 100755..100644
--- a/src/2-1-gravity-wind.c
+++ b/src/2-1-gravity-wind.c
@@ -1,23 +1,28 @@
 #include <stdlib.h>
 #include <stdbool.h>
-#include <global_objects.c>
+#include <vectorlib.c>
 
 #include <SDL2/SDL.h>
 #include <SDL2/SDL_video.h>
 #include <time.h>
 
 #define PROJECT_NAME "vectors-gravity wind"
+#define obj_n 1
 
 typedef struct {
     Point pos;
     Point vel;
     Point acc;
     float r;
+} OBJECT_INER;
+
+typedef struct OBJECT {
+    OBJECT_INER *objs[obj_n];
 } OBJECT;
 
 #include <init.h>
 
-void constructor(int w, int h, OBJECT *obj){
+void constructor(int w, int h, OBJECT_INER *obj){
     obj->pos.x = (float)w/2;
     obj->pos.y = (float)h/2;
     obj->vel = (Point){0,0};
@@ -25,12 +30,9 @@ void constructor(int w, int h, OBJECT *obj){
     obj->r = 40;
 }
 
-OBJECT init_stuffs(int w, int h){
+void init_stuffs(int w, int h, OBJECT_INER *objs, STUFFS *stuff){
     srand(time(NULL));
-    OBJECT obj;
-    constructor(w,h,&obj);
-
-    return obj;
+    constructor(w,h,&objs[0]);
 }
 
 Point vec_sub(Point A, Point B){
@@ -38,42 +40,42 @@ Point vec_sub(Point A, Point B){
     return A;
 }
 
-void applyForce(OBJECT *obj, Point force){
+void applyForce(OBJECT_INER *obj, Point force){
     point_add(&obj->acc, &force);
 }
 
-void edges(STUFFS *stuff) {
-    if (stuff->obj->pos.y >= stuff->height - stuff->obj->r / 2){
-        stuff->obj->pos.y = stuff->height - stuff->obj->r / 2;
-        stuff->obj->vel.y = stuff->obj->vel.y * -1;
+void edges(STUFFS *stuff, OBJECT_INER *obj) {
+    if (obj->pos.y >= stuff->height - obj->r / 2){
+        obj->pos.y = stuff->height - obj->r / 2;
+        obj->vel.y = obj->vel.y * -1;
     }
 
-    if (stuff->obj->pos.x >= stuff->width - stuff->obj->r / 2){
-        stuff->obj->pos.x = stuff->width - stuff->obj->r / 2;
-        stuff->obj->vel.x = stuff->obj->vel.x * -1;
-    } else if (stuff->obj->pos.x <= stuff->obj->r / 2){
-        stuff->obj->pos.x = stuff->obj->r / 2;
-        stuff->obj->vel.x = stuff->obj->vel.x * -1;
+    if (obj->pos.x >= stuff->width - obj->r / 2){
+        obj->pos.x = stuff->width - obj->r / 2;
+        obj->vel.x = obj->vel.x * -1;
+    } else if (obj->pos.x <= obj->r / 2){
+        obj->pos.x = obj->r / 2;
+        obj->vel.x = obj->vel.x * -1;
     }
 }
 
-void update(STUFFS *stuff){
+void update(STUFFS *stuff, OBJECT_INER *obj){
     //Point mouse = {
     //    stuff->mx,
     //    stuff->my,
     //};
 
-    //stuff->obj->acc = vec_sub(mouse, stuff->obj->pos);
-    //point_set_mag(&stuff->obj->acc, 0.1);
+    //obj->acc = vec_sub(mouse, obj->pos);
+    //point_set_mag(&obj->acc, 0.1);
     
-    point_add(&stuff->obj->vel,&stuff->obj->acc);
-    point_add(&stuff->obj->pos, &stuff->obj->vel);
-    stuff->obj->acc = (Point){0,0};
+    point_add(&obj->vel,&obj->acc);
+    point_add(&obj->pos, &obj->vel);
+    obj->acc = (Point){0,0};
 }
 
-void show(SDL_Renderer* renderer,STUFFS *stuff){
+void show(SDL_Renderer* renderer,OBJECT_INER *obj){
     SDL_SetRenderDrawColor(renderer,150,50,255,255);
-    SDL_RenderFillRect(renderer,&(SDL_Rect){.x = stuff->obj->pos.x - (stuff->obj->r / 2), .y=stuff->obj->pos.y - (stuff->obj->r / 2), .w = stuff->obj->r, .h = stuff->obj->r});
+    SDL_RenderFillRect(renderer,&(SDL_Rect){.x = obj->pos.x - (obj->r / 2), .y=obj->pos.y - (obj->r / 2), .w = obj->r, .h = obj->r});
 }
 
 void draw(SDL_Renderer* renderer,SDL_Window* window, STUFFS *stuff){
@@ -82,22 +84,18 @@ void draw(SDL_Renderer* renderer,SDL_Window* window, STUFFS *stuff){
 
     if(stuff->mousedown == true){
         Point wind = {0.1, 0};
-        applyForce(stuff->obj, wind);
+        applyForce(stuff->obj.objs[0], wind);
     }
 
     Point gravity = {0, 0.2};
-    applyForce(stuff->obj, gravity);
+    applyForce(stuff->obj.objs[0], gravity);
 
 
-    update(stuff);
-    edges(stuff);
-    show(renderer,stuff);
+    update(stuff,stuff->obj.objs[0]);
+    edges(stuff,stuff->obj.objs[0]);
+    show(renderer,stuff->obj.objs[0]);
 
 	SDL_RenderPresent(renderer);
 }
 
-void mousePressed(STUFFS *stuff){
-
-}
-
 #include <init.c>
diff --git a/src/2-2-mass-accel.c b/src/2-2-mass-accel.c
index 48b1784..1281433 100755..100644
--- a/src/2-2-mass-accel.c
+++ b/src/2-2-mass-accel.c
@@ -1,5 +1,5 @@
 #include <stdbool.h>
-#include <global_objects.c>
+#include <vectorlib.c>
 
 #include <SDL2/SDL.h>
 #include <SDL2/SDL_video.h>
@@ -20,7 +20,7 @@ typedef struct OBJECT {
     OBJECT_INER *objs[obj_n];
 } OBJECT;
 
-#include <init-multi.h>
+#include <init.h>
 
 void constructor(int w, int h, OBJECT_INER *obj, float x, float y, float mass){
     obj->pos.x = (float)w/2 + x;
@@ -103,8 +103,4 @@ void draw(SDL_Renderer* renderer,SDL_Window* window, STUFFS *stuff){
 	SDL_RenderPresent(renderer);
 }
 
-void mousePressed(STUFFS *stuff){
-
-}
-
-#include <init-multi.c>
+#include <init.c>
diff --git a/src/2-3-friction.c b/src/2-3-friction.c
index d78fc8e..974b19e 100755..100644
--- a/src/2-3-friction.c
+++ b/src/2-3-friction.c
@@ -1,5 +1,5 @@
 #include <stdbool.h>
-#include <global_objects.c>
+#include <vectorlib.c>
 
 #include <SDL2/SDL.h>
 #include <SDL2/SDL_video.h>
@@ -22,7 +22,7 @@ typedef struct OBJECT {
 
 float mu=0.1;
 
-#include <init-multi.h>
+#include <init.h>
 
 void constructor(int w, int h, OBJECT_INER *obj, float x, float y, float mass){
     obj->pos.x = x;
@@ -130,4 +130,4 @@ void mousePressed(STUFFS *stuff){
 
 }
 
-#include <init-multi.c>
+#include <init.c>
diff --git a/src/2-4-drag.c b/src/2-4-drag.c
index 503af42..1bcbe17 100755..100644
--- a/src/2-4-drag.c
+++ b/src/2-4-drag.c
@@ -1,6 +1,6 @@
 #include <SDL2/SDL_render.h>
 #include <stdbool.h>
-#include <global_objects.c>
+#include <vectorlib.c>
 
 #include <SDL2/SDL.h>
 #include <SDL2/SDL_video.h>
@@ -23,7 +23,7 @@ typedef struct OBJECT {
 
 float DragC = 0.2;
 
-#include <init-multi.h>
+#include <init.h>
 
 void constructor(int w, int h, OBJECT_INER *obj, float x, float y, float mass){
     obj->pos.x = x;
@@ -132,7 +132,7 @@ void mousePressed(STUFFS *stuff){
 
 }
 
-#include <init-multi.c>
+#include <init.c>
 
 
 /* Exercises
diff --git a/src/2-5-grav-attraction.c b/src/2-5-grav-attraction.c
index 89ee28a..e4e0313 100755..100644
--- a/src/2-5-grav-attraction.c
+++ b/src/2-5-grav-attraction.c
@@ -1,6 +1,6 @@
 #include <SDL2/SDL_render.h>
 #include <stdbool.h>
-#include <global_objects.c>
+#include <vectorlib.c>
 
 #include <SDL2/SDL.h>
 #include <SDL2/SDL_video.h>
@@ -28,7 +28,7 @@ typedef struct OBJECT {
     OBJECT_INER *objs[obj_n];
 } OBJECT;
 
-#include <init-multi.h>
+#include <init.h>
 
 void constructor(int w, int h, OBJECT_INER *obj, float x, float y, float mass){
     obj->pos.x = x;
@@ -107,8 +107,4 @@ void draw(SDL_Renderer* renderer,SDL_Window* window, STUFFS *stuff){
 	SDL_RenderPresent(renderer);
 }
 
-void mousePressed(STUFFS *stuff){
-
-}
-
-#include <init-multi.c>
+#include <init.c>