Create app.py

app.py

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+import streamlit as st
+import matplotlib.pyplot as plt
+import numpy as np
+import time
+
+# Page Configurations
+st.set_page_config(
+    page_title="Gun Firing Simulation",
+    layout="centered"
+)
+
+# Title and Description
+st.title("Gun Firing Simulation")
+st.write("This app simulates the firing of a bullet from a gun. Watch the bullet travel along its trajectory!")
+
+# Parameters Input
+st.sidebar.header("Simulation Parameters")
+initial_velocity = st.sidebar.number_input("Initial Velocity (m/s):", min_value=1, max_value=1000, value=500, step=10)
+angle = st.sidebar.slider("Firing Angle (degrees):", min_value=0, max_value=90, value=45)
+gravity = st.sidebar.number_input("Gravity (m/s²):", min_value=1.0, max_value=20.0, value=9.8, step=0.1)
+
+def simulate_bullet():
+    # Constants
+    angle_rad = np.radians(angle)
+    
+    # Time of flight
+    time_of_flight = (2 * initial_velocity * np.sin(angle_rad)) / gravity
+    
+    # Maximum range
+    max_range = (initial_velocity**2 * np.sin(2 * angle_rad)) / gravity
+    
+    # Maximum height
+    max_height = (initial_velocity**2 * (np.sin(angle_rad)**2)) / (2 * gravity)
+    
+    # Time intervals
+    t = np.linspace(0, time_of_flight, num=500)
+
+    # Trajectory equations
+    x = initial_velocity * np.cos(angle_rad) * t
+    y = initial_velocity * np.sin(angle_rad) * t - 0.5 * gravity * t**2
+
+    return x, y, max_range, max_height, time_of_flight
+
+# Simulate and Plot
+if st.button("Fire Bullet!"):
+    st.write("## Bullet Trajectory")
+    st.write("Simulating... Hold on!")
+
+    x, y, max_range, max_height, time_of_flight = simulate_bullet()
+
+    # Plot
+    fig, ax = plt.subplots()
+    ax.plot(x, y, label="Bullet Trajectory")
+    ax.axhline(0, color='black', linewidth=0.5, linestyle='--')
+    ax.set_xlabel("Distance (m)")
+    ax.set_ylabel("Height (m)")
+    ax.set_title("Bullet Trajectory Simulation")
+    ax.legend()
+
+    st.pyplot(fig)
+
+    # Display parameters
+    st.write(f"**Maximum Range:** {max_range:.2f} meters")
+    st.write(f"**Maximum Height:** {max_height:.2f} meters")
+    st.write(f"**Time of Flight:** {time_of_flight:.2f} seconds")
+
+    # Animation Simulation
+    st.write("### Animation of the Bullet")
+    progress_bar = st.progress(0)
+    bullet_fig, bullet_ax = plt.subplots()
+
+    for i in range(len(x)):
+        if y[i] < 0:  # Stop animation if bullet hits the ground
+            break
+        bullet_ax.clear()
+        bullet_ax.plot(x, y, label="Bullet Trajectory")
+        bullet_ax.plot(x[i], y[i], 'ro', label="Bullet Position")
+        bullet_ax.axhline(0, color='black', linewidth=0.5, linestyle='--')
+        bullet_ax.set_xlim(0, max(x))
+        bullet_ax.set_ylim(0, max(y) + 5)
+        bullet_ax.set_xlabel("Distance (m)")
+        bullet_ax.set_ylabel("Height (m)")
+        bullet_ax.set_title("Bullet Animation")
+        bullet_ax.legend()
+        st.pyplot(bullet_fig)
+        progress_bar.progress(int((i / len(x)) * 100))
+        time.sleep(0.01)
+
+    st.write("Simulation Complete!")