#include "enemy.h"

std::vector<enemy*> enemy::guards;
sf::Sprite* enemy::enemySprite;


enemy::enemy(float x, float y) {
        this->coordX = x;
        this->coordY = y;
        this->speed = 60;
        this->direction = ( int(this->coordX) % 2) ? LEFT : RIGHT;
        this->xleft = this->coordX - this->range;
        this->xright = this->coordX + this->range;
}

sf::Sprite& enemy::getSprite() {
    return *enemySprite;
}

void enemy::move() {
        switch(this->direction) {
        case LEFT:
            dx = -1;
            break;
        case RIGHT:
            dx = 1;
            break;
        }
}

void enemy::update(float time) {
    if(this->coordX + dx*speed*time < this->xleft || this->coordX + dx*speed*time > this->xright) {
        this->direction = (this->direction == LEFT) ? RIGHT : LEFT;
        this->dx *= -1;
    }
    this->coordX += dx*speed*time;
    this->dx = 0;
}

bool enemy::loadFromFile(char filepath[32]) {
    FILE* file;
    int x, y;
    if(file = std::fopen(filepath, "r")) {
        while(!std::feof(file)) {
            std::fscanf(file, "%i %i", &x,&y);
            enemy *guard = new enemy(x, y);
            guards.push_back(guard);
        }
        return true;
    }
    else
        return false;
}

void enemy::pushSprite() {
    sf::Texture *enemyTexture = new sf::Texture;
    enemyTexture->loadFromFile("src/guard.png");
    enemySprite = new sf::Sprite;
    enemySprite->setTexture(*enemyTexture);
}