Hello, just started coding with SFML and got stuck with collision, hwo does it needed to be done properly?
Here is my code:
main.cpp
#include "SFML/Graphics.hpp"
#include <iostream>
#include "playerClass.h"
#include "platformClass.h"
int windowWidth = 800;
int windowHeight = 600;
int main()
{
sf::RenderWindow window(sf::VideoMode(windowWidth, windowHeight), "SFML");
float startingX = 10, startingY = 10;
bool playerLeft, playerRight, playerUp, playerDown, isCollidingLeft = false, isCollidingRight = false, isCollidingUp = false , isCollidingDown = false;
PlayerClass playerObject(startingX,startingY);
sf::Font consolasFont;
consolasFont.loadFromFile("data/fonts/consola.ttf");
sf::Text helloText("Hello knights", consolasFont,50);
//loading kight texture
sf::Texture knightTexture;
knightTexture.loadFromFile("knight.png");
sf::Sprite knightObj(knightTexture);
//cube
sf::RectangleShape cube1;
cube1.setSize(sf::Vector2f(100, 100));
cube1.setFillColor(sf::Color(2500, 0, 0, 255));
cube1.setPosition(200, 200);
while (window.isOpen())
{
sf::Event evnt;
while (window.pollEvent(evnt))
{
if (evnt.type == sf::Event::Closed)
{
window.close();
}
if (sf::Keyboard::isKeyPressed(sf::Keyboard::Escape))
{
window.close();
}
//if colliding stop moving from that side
if (knightObj.getGlobalBounds().intersects(cube1.getGlobalBounds()))
{
if (knightObj.getPosition().x > cube1.getPosition().x && knightObj.getGlobalBounds().intersects(cube1.getGlobalBounds()))
{
isCollidingLeft = true;
isCollidingRight = false;
isCollidingUp = false;
isCollidingDown = false;
std::cout << "Player is collding from the left" << std::endl;
}
if (knightObj.getPosition().x < cube1.getPosition().x && knightObj.getGlobalBounds().intersects(cube1.getGlobalBounds()))
{
isCollidingLeft = false;
isCollidingRight = true;
isCollidingUp = false;
isCollidingDown = false;
std::cout << "Player is collding from the right" << std::endl;
}
if (knightObj.getPosition().y < cube1.getPosition().y && knightObj.getGlobalBounds().intersects(cube1.getGlobalBounds()))
{
isCollidingLeft = false;
isCollidingRight = false;
isCollidingUp = true;
isCollidingDown = false;
std::cout << "Player is collding from the right" << std::endl;
}
if (knightObj.getPosition().y < cube1.getPosition().y && knightObj.getGlobalBounds().intersects(cube1.getGlobalBounds()))
{
isCollidingLeft = false;
isCollidingRight = false;
isCollidingUp = false;
isCollidingDown = true;
std::cout << "Player is collding from the right" << std::endl;
}
}
else if(!knightObj.getGlobalBounds().intersects(cube1.getGlobalBounds()))
{
isCollidingLeft = false;
isCollidingRight = false;
isCollidingUp = false;
isCollidingDown = false;
}
if (sf::Keyboard::isKeyPressed(sf::Keyboard::A))
{
playerLeft = true;
}
else
{
playerLeft = false;
}
if (sf::Keyboard::isKeyPressed(sf::Keyboard::D))
{
playerRight = true;
}
else
{
playerRight = false;
}
if (sf::Keyboard::isKeyPressed(sf::Keyboard::W))
{
playerUp = true;
}
else
{
playerUp = false;
}
if (sf::Keyboard::isKeyPressed(sf::Keyboard::S))
{
playerDown = true;
}
else
{
playerDown = false;
}
playerObject.update(playerUp, playerDown, playerRight, playerLeft, isCollidingLeft, isCollidingRight, isCollidingUp, isCollidingDown);
}
window.clear();
//window.draw(helloText);
window.draw(knightObj);
window.draw(cube1);
knightObj.move(sf::Vector2f(playerObject.getxVel(), playerObject.getyVel()));
window.display();
}
return 0;
}
playerClass.cpp
#include "playerClass.h"
#include "platformClass.h"
#include <iostream>
PlayerClass::PlayerClass(float x, float y)
{
PlayerClass::setXPos(x);
PlayerClass::setYPos(y);
}
void PlayerClass::update(bool playerUp, bool playerDown, bool playerRight, bool playerLeft, bool isCollidingLeft, bool isCollidingRight, bool isCollidingUp, bool isCollidingDown)
{
if (playerDown == false && playerUp == false && playerRight == false && playerLeft == false)
{
PlayerClass::setyVel(0);
PlayerClass::setxVel(0);
std::cout << "Player stands still" << std::endl;
}
if (playerUp)
{
if (isCollidingUp == false)
{
PlayerClass::setyVel(-0.5);
PlayerClass::setFaceUp(true);
PlayerClass::setFaceDown(false);
PlayerClass::setFaceLeft(false);
PlayerClass::setFaceRight(false);
std::cout << "Player moves up" << std::endl;
}
else
{
std::cout << "Player cant move up" << std::endl;
}
}
if (playerDown)
{
if (!isCollidingDown)
{
PlayerClass::setyVel(0.5);
PlayerClass::setFaceUp(false);
PlayerClass::setFaceDown(true);
PlayerClass::setFaceLeft(false);
PlayerClass::setFaceRight(false);
std::cout << "Player moves down" << std::endl;
}
else
{
}
}
if (playerRight)
{
if (!isCollidingRight)
{
PlayerClass::setxVel(0.5);
PlayerClass::setFaceUp(false);
PlayerClass::setFaceDown(false);
PlayerClass::setFaceLeft(false);
PlayerClass::setFaceRight(true);
std::cout << "Player moves right" << std::endl;
}
else
{
std::cout << "player cant move right object in the way" << std::endl;
}
}
if (playerLeft)
{
if (!isCollidingLeft)
{
PlayerClass::setxVel(-0.5);
PlayerClass::setFaceUp(false);
PlayerClass::setFaceDown(false);
PlayerClass::setFaceLeft(true);
PlayerClass::setFaceRight(false);
std::cout << "Player moves left" << std::endl;
}
else
{
std::cout << "player cant move left object in the way" << std::endl;
}
}
PlayerClass::setYPos(PlayerClass::getyVel());
std::cout << PlayerClass::getYPos() << std::endl;
}
playerClass.h
#include "playerClass.h"
#include "platformClass.h"
#include <iostream>
PlayerClass::PlayerClass(float x, float y)
{
PlayerClass::setXPos(x);
PlayerClass::setYPos(y);
}
void PlayerClass::update(bool playerUp, bool playerDown, bool playerRight, bool playerLeft, bool isCollidingLeft, bool isCollidingRight, bool isCollidingUp, bool isCollidingDown)
{
if (playerDown == false && playerUp == false && playerRight == false && playerLeft == false)
{
PlayerClass::setyVel(0);
PlayerClass::setxVel(0);
std::cout << "Player stands still" << std::endl;
}
if (playerUp)
{
if (isCollidingUp == false)
{
PlayerClass::setyVel(-0.5);
PlayerClass::setFaceUp(true);
PlayerClass::setFaceDown(false);
PlayerClass::setFaceLeft(false);
PlayerClass::setFaceRight(false);
std::cout << "Player moves up" << std::endl;
}
else
{
std::cout << "Player cant move up" << std::endl;
}
}
if (playerDown)
{
if (!isCollidingDown)
{
PlayerClass::setyVel(0.5);
PlayerClass::setFaceUp(false);
PlayerClass::setFaceDown(true);
PlayerClass::setFaceLeft(false);
PlayerClass::setFaceRight(false);
std::cout << "Player moves down" << std::endl;
}
else
{
}
}
if (playerRight)
{
if (!isCollidingRight)
{
PlayerClass::setxVel(0.5);
PlayerClass::setFaceUp(false);
PlayerClass::setFaceDown(false);
PlayerClass::setFaceLeft(false);
PlayerClass::setFaceRight(true);
std::cout << "Player moves right" << std::endl;
}
else
{
std::cout << "player cant move right object in the way" << std::endl;
}
}
if (playerLeft)
{
if (!isCollidingLeft)
{
PlayerClass::setxVel(-0.5);
PlayerClass::setFaceUp(false);
PlayerClass::setFaceDown(false);
PlayerClass::setFaceLeft(true);
PlayerClass::setFaceRight(false);
std::cout << "Player moves left" << std::endl;
}
else
{
std::cout << "player cant move left object in the way" << std::endl;
}
}
PlayerClass::setYPos(PlayerClass::getyVel());
std::cout << PlayerClass::getYPos() << std::endl;
}
platformClass.h
#pragma once
#include "SFML/Graphics.hpp"
class Platform
{
private:
float xPos;
float yPos;
float width;
float height;
public:
Platform();
//setters
//getters
float getXPos()
{
return xPos;
}
};
platform.cpp
#include "platformClass.h"
Platform::Platform()
{
xPos = 100;
yPos = 100;
width = 100;
height = 100;
}
