// 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);
        const float SPEED = 350;

        if (IsKeyPressed(KEY_W)){
            if (vel.dy > 0)
                continue;
            vel.dx = 0; 
            vel.dy = -SPEED; 

        } else if (IsKeyPressed(KEY_S)){
            if (vel.dy < 0)
                continue;
            vel.dx = 0; 
            vel.dy = SPEED; 
        } else if (IsKeyPressed(KEY_A)){
            if (vel.dx > 0)
                continue;
            vel.dx = -SPEED; 
            vel.dy = 0; 
        } else if (IsKeyPressed(KEY_D)){
            if (vel.dx < 0)
                continue;
            vel.dx = SPEED; 
            vel.dy = 0; 
        }

        // 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; 
    }

}