https://eziosoft.com/tags/android/ Recent content in Android on eziosoft Hugo en Fri, 18 Apr 2025 00:00:00 +0000 https://eziosoft.com/posts/taught-phone-to-know-lying/ Fri, 18 Apr 2025 00:00:00 +0000 https://eziosoft.com/posts/taught-phone-to-know-lying/ <p>I&rsquo;ve been fascinated by real-time signal processing for a while. You know that feeling when you&rsquo;re watching a live graph of sensor data and it wiggles around in response to the real world? That&rsquo;s basically digital sorcery and I love it.</p> <p>I was thinking where to get the data and what to classify.</p> <p>One day I thought: what if I could make my phone figure out what I&rsquo;m doing, just from its motion sensors?</p> https://eziosoft.com/posts/raytracer-android/ Fri, 18 Apr 2025 00:00:00 +0000 https://eziosoft.com/posts/raytracer-android/ <p>A real-time raycasting engine (Wolfenstein 3D style) built entirely in Kotlin using Jetpack Compose for Android. Think classic FPS rendered on a modern Android device.</p> <h2 id="what-is-raycasting"> What is Raycasting? <a class="heading-link" href="#what-is-raycasting"> <i class="fa-solid fa-link" aria-hidden="true" title="Link to heading"></i> <span class="sr-only">Link to heading</span> </a> </h2> <p>Raycasting is a rendering technique used in early 3D games like Wolfenstein 3D, Doom, and Duke Nukem 3D. Instead of full 3D polygons, it casts rays from the player&rsquo;s view into a 2D grid map to determine wall heights. This creates a pseudo-3D effect that runs efficiently on limited hardware.</p>