bullets

#include <raylib.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>

#define SCREEN_WIDTH 800
#define SCREEN_HEIGHT 450

typedef struct Object
{
    int x;
    int y;
    int id;
    bool live;
    bool visible;
    char* type;
    struct Object *next;
}Object;


Object *head=NULL;

int count=0;


Object* CreateObject(int x, int y, const char*  type)
{
   Object * obj = malloc(sizeof (Object));
    obj->live=true;
    obj->visible=true;
    obj->next=NULL;
    obj->x=x;
    obj->y=y;
    obj->type=strdup(type);
    obj->id=count;
    Add(obj);
    return obj;
}


void Add(Object *obj)
{

    if (!head)
    {
        head = obj;
    } else
    {
        Object* tmp = head;
        while(tmp->next)
        {
            tmp=tmp->next;
        }
        tmp->next=obj;
    }

    count++;
}

void Delete(Object *obj)
{
    if (!obj)
        return ;
    printf("Delete %d %s \n",obj->id,obj->type);
    if (obj->type!=NULL)
        free(obj->type);
    free(obj);
    obj=NULL;
    count--;

}

void RemoveDeath()
{
    if (!head)
        return;


    Object* current=head;
    Object* prev=NULL;


     while(current && current->live)
    {
        if (current->next==NULL)
            return ;
        else
        {
            prev= current;
            current=current->next;
        }
    }
    if (current == head)
    {
        head= head->next;
    }
    else
        prev->next=current->next;


    Delete(current);
    current=NULL;
}

Object* Collide(const char* type,Object *object)
{
    if (!head && !object)
        return NULL;
    Object* hit=head;


    while(hit &&  hit!=object)
    {


        if (strcmp(type,hit->type)==0)
        {
            if (hit->live)
            {
                if (CheckCollisionCircleRec((Vector2){object->x,object->y},5,(Rectangle){hit->x,hit->y,20,60}))
                {
                        return hit;
                }
            }


        }
        hit=hit->next;
    }
    return NULL;
}

void GameUpdate()
{
    if (!head)
        return;
    Object* obj=head;

 //  RemoveDeath();
    while(obj!=NULL)
    {
      //  printf("Update %d %s \n",obj->id,obj->type);
        if (strcmp("bullet",obj->type)==0)
        {
            if (obj->live)
            {
                obj->y -= 2;
                if (obj->y<=10)
                {
                    obj->live=false;
                    obj->visible=false;
                }
                Object* hit =Collide("enemy",obj);
                if (hit!=NULL)
                {
                    obj->live=false;
                    obj->visible=false;
                    hit->live=false;
                    hit->visible=false;
                }
            }


        } else
        if (strcmp("player",obj->type)==0)
        {
            if (IsKeyDown(KEY_LEFT))
                obj->x-=8;
            else
            if (IsKeyDown(KEY_RIGHT))
                obj->x+=8;

            if (obj->x<=20)
                obj->x=20;
            if (obj->x>=800-20)
                obj->x=800-20;
            if (IsKeyReleased(KEY_SPACE))
            {
                CreateObject(obj->x+10,obj->y-20,"bullet");
            }


        }else
        if (strcmp("enemy",obj->type)==0)
        {

        }

        obj=obj->next;
    }
    RemoveDeath();


}


void GameRender()
{
    if (!head)
        return;
    Object* obj=head;


    while(obj!=NULL)
    {
        if (obj->visible)
        {
            if (strcmp("bullet",obj->type)==0)
            {

                DrawCircle(obj->x,obj->y,5,GREEN);

            } else
            if (strcmp("player",obj->type)==0)
            {
                DrawRectangle(obj->x,obj->y,20,60,LIME);
            }else
            if (strcmp("enemy",obj->type)==0)
            {
                DrawRectangle(obj->x,obj->y,20,60,RED);
            }
        }
        obj=obj->next;
    }

}

void Clear()
{
    if (!head)
        return ;
    Object* tmp=head;
    while(tmp)
    {
        head = head->next;
        Delete(tmp);
        tmp = head;
    }
}




int main()
{

  CreateObject(200,100,"enemy");
  CreateObject(600,100,"enemy");

  CreateObject(800/2,360,"player");






    InitWindow(SCREEN_WIDTH, SCREEN_HEIGHT, "bullets ");
    SetTargetFPS(60);

    while (!WindowShouldClose())
    {
         GameUpdate();

        BeginDrawing();
        ClearBackground(BLACK) ;
        GameRender();
		DrawText(TextFormat("Objects %d ",count),20,20,16,RED);
        EndDrawing();

    }
    CloseWindow();


    Clear();
    return 0;
}