#include <raylib.h>
#include <raymath.h>
#include <math.h>
#include "physics.h"
#include "player.h"
#include <stdio.h>

#define TOP_SPEEDX 100
#define TOP_SPEEDY 100
#define ACCEL_X 40

void add_player(float xpos, float ypos) {
  struct entity player = {
    .flags = (ENTITY_ACTIVE | ENTITY_COLLISION_ACTIVE | ENTITY_VISIBLE),
    .type = Player_Entity,

    .position = (Vector2) {xpos, ypos},
    .texture = LoadTexture("assets/Graphics/spritesheet-characters-double.png"),

    .sprite_source_rect = (Rectangle) {
      .x = 50,
      .y = 57,
      .width = 160,
      .height = 200
    },
    .collider = (Rectangle) {
      .x = -50,
      .y = -50,
      .width = 100,
      .height = 100
    },
    .sprite_dest_rect = (Rectangle) {
      .x = -50,
      .y = -50,
      .width = 100,
      .height = 100
    }
  };

  add_entity(&player);
}

float get_x_acceleration_direction(const struct entity* player) {
  if (IsKeyDown(KEY_A)) {
    return -1.0;
  } else if (IsKeyDown(KEY_D)) {
    return 1.0;
  }

  return 0.0;
}

void handle_movement(struct entity* player, float dt) {
  Vector2 accel = {
    .x = get_x_acceleration_direction(player) * ACCEL_X,
    .y = GRAVITY
  };

  if (accel.x != 0) {
    player->velocity.x += dt * accel.x * 0.5;
  } else if (player->velocity.x < 0) {
    player->velocity.x =
      fminf(player->velocity.x + ACCEL_X * 0.5 * dt, 0);
  } else if (player->velocity.x > 0) {
    player->velocity.x =
      fmaxf(player->velocity.x - ACCEL_X * 0.5 * dt, 0);
  }
  player->velocity.y += GRAVITY * dt * 0.5;

  move_and_collide(player, dt);

  if (accel.x != 0) {
    player->velocity.x += dt * accel.x * 0.5;
  } else if (player->velocity.x < 0) {
    player->velocity.x =
      fminf(player->velocity.x + ACCEL_X * 0.5 * dt, 0);
  } else if (player->velocity.x > 0) {
    player->velocity.x =
      fmaxf(player->velocity.x - ACCEL_X * 0.5 * dt, 0);
  }
  player->velocity.y += GRAVITY * dt * 0.5;
}

void handle_input(struct entity* player) {
  if (IsKeyPressed(KEY_SPACE)) {
    player->velocity.y = -50;
  }
}

void update_player(struct entity* player, float dt) {
  handle_movement(player, dt);
  handle_input(player);
}