simulate rocket physics in javascript

To simulate rocket physics in JavaScript, you will need to use physics equations to determine the movement and acceleration of the rocket over time. This can be done using numerical integration methods such as the Euler method, or more advanced methods such as the Runge-Kutta method.

Here is a basic example of how to simulate a rocket launch using the Euler method:


index.tsx
// Define constants
const g = 9.81; // acceleration due to gravity
const m = 1000; // mass of rocket
const dt = 0.1; // time step

// Define initial conditions
let v = 0; // velocity
let x = 0; // position
let a = 0; // acceleration

// Define simulation loop
for (let t = 0; t < 150; t += dt) {
  // Calculate thrust, drag, and gravity forces
  const Fthrust = 10000; // thrust force
  const Fdrag = -0.1 * v * v; // drag force
  const Fgravity = m * g; // gravity force

  // Calculate total force
  const Fnet = Fthrust + Fdrag + Fgravity;

  // Calculate acceleration
  a = Fnet / m;

  // Update velocity and position
  v += a * dt;
  x += v * dt;

  // Draw rocket at new position
  drawRocket(x);

  // Stop simulation if rocket hits ground
  if (x < 0) {
    break;
  }
}
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This code defines the initial conditions of the rocket and runs a simulation loop that calculates and updates the velocity and position of the rocket over time. The drawRocket function can be used to draw the rocket at its new position for each time step.

Note that this example is a very basic simulation and does not take into account many real-world factors, such as air resistance, wind, and more complex physics equations.

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