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path: root/src/1-3-rand-vec.c
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#include <stdbool.h>
#include <vectorlib.c>

#include <SDL2/SDL.h>
#include <SDL2/SDL_video.h>

#define PROJECT_NAME "vectors-rand vec"
#define obj_n 1

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_INER *obj){
    obj->pos.x = (float)w/2;
    obj->pos.y = (float)h/2;
}

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

void update(STUFFS *stuff){
    Point rand_point = {RandomFloat(-1, 1),RandomFloat(-1, 1)};
    point_set_mag(&rand_point, 1);

    float random_mul = RandomFloat(50, 100);
    point_mul(&rand_point,&(Point){.x = random_mul, .y = random_mul});

    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.objs[0]->pos.x,stuff->obj.objs[0]->pos.y);
}

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);

	SDL_RenderPresent(renderer);
}

#include <init.c>