I'm writing a Zelda clone for study, was able to implement a walkcycle and attack cycle in my player sprite but I'm having trouble making the enemy sprite follow and attack
my hero sprite
[main.cpp]
#include <SFML/Graphics.hpp>
#include "Player.h"
#include "Opponent.h"
#include "OpponentAi.h"
int main()
{
sf::RenderWindow window(sf::VideoMode(800, 600), "My window");
enum class state {
PLAYING,
GAMEOVER,
PAUSED
};
Player player;
Opponent opponent;
Clock clock;
OpponentAi opponentAi;
while (window.isOpen())
{
sf::Event event;
while (window.pollEvent(event))
{
if (event.type == sf::Event::Closed)
window.close();
}
player.P_Movement();
opponent.ShowOpponent();
player.ShowHero().setScale(3, 3);
opponent.ShowOpponent().setScale(3, 3);
window.clear(sf::Color::Black);
// draw everything here...
window.draw(player.ShowHero());
window.draw(opponent.ShowOpponent());
// end the current frame
window.display();
}
return 0;
}
here is the opponent cpp file
#include "Opponent.h"
Opponent::Opponent()
{
enemytexture.loadFromFile("Opponent.png");
enemySprite.setTexture(enemytexture);
enemySprite.setTextureRect(sf::IntRect(0, 0, 50, 50));
enemySprite.setPosition(800 / 2, 600 / 2);
}
Opponent::~Opponent()
{
}
sf::Sprite& Opponent::ShowOpponent() {
auto dt = clock.dt();
//this affects the speed of the opponent going towards you
float m_Speed = 100.0;
playerLocation = sprite.getPosition();
m_Position = enemySprite.getPosition();
float playerX = playerLocation.x;
float playerY = playerLocation.y;
if (playerX < m_Position.x)
{ //left
enemySprite.setPosition(playerLocation);
m_Position.x = m_Position.x - m_Speed * dt;
enemySprite.setTextureRect(sf::IntRect(counterWalking * 0.0f, 136.0f, 27.0f, 36.0f));
}
if (playerY < m_Position.y)
{ //up
m_Position.y = m_Position.y - m_Speed * dt;
enemySprite.setTextureRect(sf::IntRect(counterWalking * 0.f, 10.0f, 25.0f, 45.0f));
}
if (playerX > m_Position.x)
{ //right
m_Position.x = m_Position.x + m_Speed * dt;
enemySprite.setTextureRect(sf::IntRect(counterWalking * 0.0f, 60.0f, 25.0f, 36.0f));
}
if (playerY > m_Position.y)
{ //down
m_Position.y = m_Position.y + m_Speed * dt;
enemySprite.setTextureRect(sf::IntRect(counterWalking * 0.0f, 100.0f, 25.0f, 36.0f));
}
enemySprite.setPosition(m_Position);
return enemySprite;
}
and here is the opponent .h file
#pragma once
#include "Player.h"
#include "Clock.h"
#include <memory>
#include <iostream>
class Opponent:public Player
{
public:
Opponent();
~Opponent();
sf::Sprite& ShowOpponent();
private:
sf::Sprite enemySprite;
sf::Texture enemytexture;
Player player;
Clock clock;
sf::Vector2f playerLocation;
sf::Vector2f m_Position;
};
here is my hero header file
#pragma once
#include "SFML/Graphics.hpp"
#include "Clock.h"
enum class Dir_Attack {
STATIC,
LEFT,
RIGHT,
DOWN,
UP
};
class Player
{
public:
Player();
~Player();
sf::Sprite& ShowHero();
void P_Movement();
void SetAttack();
protected:
sf::Clock clock;
sf::Time time;
float dt;
Dir_Attack d_p_attack;
float attackSlash;
float counterWalking;
float playerMovementSpeed;
float multiplier;
sf::Texture texture;
sf::Sprite sprite;
private:
};
hero cpp file
#include "Player.h"
Player::Player()
{
texture.loadFromFile("LinkAnimation.png");
sprite.setTexture(texture);
sprite.setTextureRect(sf::IntRect(40, 0, 40, 40));
attackSlash = 3.0f;
counterWalking = 1.0f;
playerMovementSpeed = 10.0f;
multiplier = 30.f;
}
Player::~Player()
{
}
sf::Sprite& Player::ShowHero() {
return sprite;
}
void Player::P_Movement() {
dt = clock.restart().asSeconds();
if (sf::Keyboard::isKeyPressed(sf::Keyboard::Up))
{
ShowHero().move(0, -playerMovementSpeed * dt * multiplier);
ShowHero().setTextureRect(sf::IntRect(counterWalking * 40.f, 40.0f * 1.0f, 40.0f, 40.0f));
}
if (sf::Keyboard::isKeyPressed(sf::Keyboard::Down))
{
ShowHero().move(0, playerMovementSpeed * dt * multiplier);
ShowHero().setTextureRect(sf::IntRect(counterWalking * 40.0f, 0.0f, 40.0f, 40.0f));
}
if (sf::Keyboard::isKeyPressed(sf::Keyboard::Left))
{
ShowHero().move(-playerMovementSpeed * dt * multiplier , 0);
ShowHero().setTextureRect(sf::IntRect(counterWalking * 40.0f, 80.0f, 40.0f, 40.0f));
}
if (sf::Keyboard::isKeyPressed(sf::Keyboard::Right))
{
ShowHero().move(playerMovementSpeed * dt * multiplier, 0);
ShowHero().setTextureRect(sf::IntRect(counterWalking * 40.0f, 119.0f, 40.0f, 40.0f));
}
//
//this is the crucial syntax to make the
//sprite move
counterWalking++;
if (counterWalking == 8)
{
counterWalking = 0;
}
}
void Player::SetAttack() {
if (sf::Keyboard::isKeyPressed(sf::Keyboard::S) && d_p_attack == Dir_Attack::LEFT)
{
sprite.setTextureRect(sf::IntRect(attackSlash * 40.0f , 200.0f, 39.0f, 40.0f));
}
if (sf::Keyboard::isKeyPressed(sf::Keyboard::S) && d_p_attack == Dir_Attack::RIGHT)
{
sprite.setTextureRect(sf::IntRect(attackSlash * 40.0f, 236.0f, 38.0f, 38.0f));
}
if (sf::Keyboard::isKeyPressed(sf::Keyboard::S) && d_p_attack == Dir_Attack::DOWN)
{
sprite.setTextureRect(sf::IntRect(attackSlash * 40.0f, 160.0f, 40.0f, 40.0f));
}
if (sf::Keyboard::isKeyPressed(sf::Keyboard::S) && d_p_attack == Dir_Attack::UP)
{
sprite.setTextureRect(sf::IntRect( attackSlash * 40.0f, 280.0f, 40.0f, 40.0f));
}
attackSlash++;
if (attackSlash == 6)
{
attackSlash = 0;
}
}
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