#include "../../include/player_state/walk.h"

#include "../../include/player_state/default.h"

#include "../../include/player.h"
#include "../../include/raylib.h"

static void player_state_walk_update(PlayerState *state, Player *player)
{
    if (IsKeyDown(KEY_LEFT_SHIFT))
    {
        player->speed = 24.0f;
    }
    else
    {
        player->speed = 12.0f;
    }

    if (IsKeyDown(KEY_UP))
    {
        player->texture = player->textures[PLAYER_TEXTURE_WALK_BACKWARD];
    }
    else if (IsKeyDown(KEY_DOWN))
    {
        player->texture = player->textures[PLAYER_TEXTURE_WALK_FORWARD];
    }
    else if (IsKeyDown(KEY_RIGHT))
    {
        player->texture = player->textures[PLAYER_TEXTURE_WALK_RIGHT];
    }
    else if (IsKeyDown(KEY_LEFT))
    {
        player->texture = player->textures[PLAYER_TEXTURE_WALK_LEFT];
    }

    if (IsKeyDown(KEY_RIGHT))
    {
        player->control.x = 1;
    }
    else if (IsKeyDown(KEY_LEFT))
    {
        player->control.x = -1;
    }
    else
    {
        player->control.x = 0;
    }

    if (IsKeyDown(KEY_DOWN))
    {
        player->control.y = 1;
    }
    else if (IsKeyDown(KEY_UP))
    {
        player->control.y = -1;
    }
    else
    {
        player->control.y = 0;
    }

    Vector2 normalized = Vector2Normalize(player->control);

    player->velocity = Vector2Add(
        player->velocity, Vector2Scale(normalized, player->speed));

    player->position.x += player->velocity.x * GetFrameTime();
    player->position.y += player->velocity.y * GetFrameTime();

    player->velocity = Vector2Scale(player->velocity, player->friction);

    if (Vector2Length(player->velocity) < 0.1f)
    {
        player_state_transition_to_default(state, player);
    }
}

void player_state_transition_to_walk(PlayerState *state, Player *player)
{
    state->name = "Walk";
    state->update = player_state_walk_update;
}