Hello! I am trying to design a model for a projectile trajectory. This is my first time doing something like this so what i have done is probably not the best solution. I just applied my basic math knowledge from high school
The current flaws i know of is that its not very compatible with different screens (how could i solve this?) i also like to make the trajectory have a relation with a starting angle. (I am making a tank game where the goal is to be able to fire a projectile using a power and angle variable). This is the parabola that the projectile currently follows:
https://www.wolframalpha.com/input/?i=y+%3D+-x%5E2%2F1800%2B2x and here is my code:
#include <SFML/Graphics.hpp>
#include "game.h"
#include <string>
#include <iostream>
#include <vector>
#include <math.h>
using namespace std;
int main() {
sf::RenderWindow window(sf::VideoMode::getDesktopMode(),
"Test", sf::Style::Fullscreen);
window.setFramerateLimit(60);
sf::CircleShape player(20, 5);
player.setFillColor(sf::Color(150, 70, 250));
player.setOutlineThickness(4);
player.setOutlineColor(sf::Color(100, 50, 250));
player.setPosition(200, window.getSize().y-400);
bool shoot{ false };
float yPos{};
float timer{ 0 };
float frametime = 1.0f / 60.0f;
while (window.isOpen()) {
sf::Event event;
while (window.pollEvent(event)) {
if (sf::Keyboard::isKeyPressed(sf::Keyboard::Space)){
shoot = true;
}
else if(sf::Event::Closed){
window.close();
}
}
if (shoot) {
timer += frametime*1000;
yPos = -pow(timer, 2)/1800+2*timer;
player.setPosition(200+timer, window.getSize().y-yPos-400);
if (player.getPosition().y > window.getSize().y) {
player.setPosition(200, window.getSize().y - 400);
timer = 0;
shoot = false;
}
}
window.clear(sf::Color(16, 16, 16, 255));
window.draw(player);
window.display();
}
}
EDIT: Added link to the function i am using.
