// src\player.cpp
#include<raylib.h>
#include<entt/entt.hpp>

#include<components.hpp>

entt::entity player;



void create_player(entt::registry& registry,Texture* texture){
    const auto entity =  registry.create();
    registry.emplace<Position>(entity,100.0f,0.0f);
    registry.emplace<Velocity>(entity,300.0f,0.0f);
    registry.emplace<Player>(entity);
    registry.emplace<Sprite>(entity,texture);
}

void update_player_system(entt::registry& registry,float dt){

    auto view = registry.view<const Player, const Position, Velocity>();

    // Constants for fine-tuning game feel
    const float GRAVITY = 900.0f;     // Constant downward pull (pixels/sec^2)
    const float JUMP_FORCE = -350.0f; // Negative force to burst UPWARD

    for (entt::entity entity : view){
        const Position& pos = view.get<Position>(entity);
        Velocity& vel = view.get<Velocity>(entity);

        if (pos.x < -50 && vel.dx < 0){
            vel.dx *= -1;
        } else if (pos.x > (GetScreenWidth()-250) && vel.dx > 0){
            vel.dx *= -1;
        }

        if (IsKeyPressed(KEY_SPACE)){
            vel.dy = JUMP_FORCE; 
        }
        vel.dy += GRAVITY * dt; 
    }

        view.each([dt,GRAVITY,JUMP_FORCE](entt::entity entity,const Position &position, auto &velocity){
                if (position.x > 100 && position.x < 120){
                    velocity.dx += 20;
                }
            
        });
}