gfx and 2-2 and multi objects

lib/global_objects.c

@@ -2,6 +2,7 @@
 #define global_objects
 
 #include <math.h>
+#include <stdlib.h>
 
 #define flaot float
 
@@ -25,6 +26,11 @@ void point_mul(Point *A, Point *B){
     A->y = A->y * B->y;
 }
 
+void point_div(Point *A, Point *B){
+    A->x = A->x / B->x;
+    A->y = A->y / B->y;
+}
+
 float magnitude(flaot x, flaot y) {
     return sqrt((pow(x,2) + pow(y,2)));
 }
@@ -38,4 +44,23 @@ void point_set_mag(Point *point, float mag){
         point->y = ry;
 }
 
+void point_limit(Point *point, float mag){
+        flaot getmag = magnitude(point->x, point->y);
+        flaot rx, ry;
+        if (getmag > mag){
+            rx = (point->x / getmag) * mag;
+            ry = (point->y / getmag) * mag;
+        } else {
+            rx = point->x;
+            ry = point->y;
+        }
+
+        point->x = rx;
+        point->y = ry;
+}
+
+float RandomFloat(float min, float max){
+   return ((max - min) * ((float)rand() / (double)RAND_MAX)) + min;
+}
+
 #endif

lib/init-multi.c

@@ -0,0 +1,71 @@
+#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=400;
+    int starth=400;
+
+	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 obj_storage[obj_n];
+
+    init_stuffs(startw,starth,obj_storage);
+
+    STUFFS stuff = {
+        startw,
+        starth,
+        false,
+        0,
+        0,
+    };
+
+    for (int i = 0; i < obj_n; i++)
+        stuff.obj[i] = &obj_storage[i];
+
+	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;
+}

lib/init-multi.h

@@ -0,0 +1,15 @@
+#ifndef inithell
+#define inithell
+
+#include <stdio.h>
+#include <stdbool.h>
+
+typedef struct{
+    int width;
+    int height;
+    bool mousedown;
+    int mx;
+    int my; 
+    OBJECT *obj[obj_n];
+} STUFFS;
+#endif

lib/init.c

@@ -1,5 +1,6 @@
 #include <stdio.h>
 #include <stdbool.h>
+#include <time.h>
 #include <init.h>
 
 #include <SDL2/SDL.h>
@@ -23,12 +24,15 @@ int main(int argc, char *argv[])
 	}
 
 
+    srand(time(NULL));
     OBJECT obj = init_stuffs(startw,starth);
 
     STUFFS stuff = {
         startw,
         starth,
         false,
+        0,
+        0,
         &obj,
     };
 
@@ -47,9 +51,11 @@ int main(int argc, char *argv[])
 			} 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(30);
+		SDL_Delay(10);
 	}
 
     SDL_DestroyRenderer(renderer);

lib/init.h

@@ -8,6 +8,8 @@ typedef struct{
     int width;
     int height;
     bool mousedown;
+    int mx;
+    int my; 
     OBJECT *obj;
 } STUFFS;
 #endif