#include <stdlib.h>
#include <stdbool.h>
#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_INER *obj){
    obj->pos.x = (float)w/2;
    obj->pos.y = (float)h/2;
    obj->vel.x = RandomFloat(-1, 1);
    obj->vel.y = RandomFloat(-1, 1);
    point_mul(&obj->vel, &(Point){3,3});
    obj->acc.x = RandomFloat(-1, 1);
    obj->acc.y = RandomFloat(-1, 1);
    point_set_mag(&obj->acc, 0.01);
}

void init_stuffs(int w, int h, OBJECT_INER *objs, STUFFS *stuff){
    srand(time(NULL));
    constructor(w,h,&objs[0]);
}

Point vec_sub(Point A, Point B){
    point_sub(&A, &B);
    return A;
}

void update(STUFFS *stuff, OBJECT_INER *obj){
    Point mouse = {
        stuff->mx,
        stuff->my,
    };

    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(&obj->vel,&obj->acc);
    point_limit(&obj->vel, 5);

    point_add(&obj->pos, &obj->vel);
}

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});
}

void draw(SDL_Renderer* renderer,SDL_Window* window, STUFFS *stuff){
    SDL_SetRenderDrawColor(renderer,0,0,0,255);
    SDL_RenderClear(renderer);

    update(stuff, stuff->obj.objs[0]);
    show(renderer,stuff->obj.objs[0]);

	SDL_RenderPresent(renderer);
}

#include <init.c>