From f28500d963d6546feda522d7748a0462a568ba28 Mon Sep 17 00:00:00 2001
From: James Barnett <noreply@jamesbarnett.xyz>
Date: Mon, 28 Dec 2020 15:49:23 +0000
Subject: Refactor components

---
 src/main/kotlin/raycaster.kt | 117 -------------------------------------------
 1 file changed, 117 deletions(-)
 delete mode 100644 src/main/kotlin/raycaster.kt

(limited to 'src/main/kotlin/raycaster.kt')

diff --git a/src/main/kotlin/raycaster.kt b/src/main/kotlin/raycaster.kt
deleted file mode 100644
index 5b717bc..0000000
--- a/src/main/kotlin/raycaster.kt
+++ /dev/null
@@ -1,117 +0,0 @@
-import kotlinx.browser.document
-import kotlin.math.pow
-
-private const val SCREEN_WIDTH = 640
-private const val SCREEN_HEIGHT = 480
-private const val MOVE_SPEED = 0.5
-private const val ROTATE_SPEED = 5
-
-private val map = listOf(
-  listOf(1,1,1,1,1,1,1,1,1,1),
-  listOf(1,0,0,0,0,0,0,0,0,1),
-  listOf(1,0,0,0,0,0,0,0,0,1),
-  listOf(1,0,0,1,1,0,1,0,0,1),
-  listOf(1,0,0,1,0,0,1,0,0,1),
-  listOf(1,0,0,1,0,0,1,0,0,1),
-  listOf(1,0,0,1,0,1,1,0,0,1),
-  listOf(1,0,0,0,0,0,0,0,0,1),
-  listOf(1,0,0,0,0,0,0,0,0,1),
-  listOf(1,1,1,1,1,1,1,1,1,1)
-)
-
-data class RaycastContext(
-  val renderer: Renderer,
-  val camera: Camera,
-  val minimap: Minimap
-)
-
-fun main() {
-  val renderer = Renderer(SCREEN_WIDTH, SCREEN_HEIGHT)
-  val camera = Camera(
-    fov = 60,
-    xPos = 2.0,
-    yPos = 2.0,
-    rotation = 90.0
-  )
-  val minimap = Minimap(map)
-
-  val context = RaycastContext(renderer, camera, minimap)
-
-  document.onkeydown = {
-    when (it.code) {
-      "KeyW" -> {
-        console.log("key w")
-        val cameraCos = kotlin.math.cos(toRadians(camera.rotation)) * MOVE_SPEED
-        val cameraSin = kotlin.math.sin(toRadians(camera.rotation)) * MOVE_SPEED
-        camera.xPos += cameraCos
-        camera.yPos += cameraSin
-      }
-      "KeyS" -> {
-        console.log("key s")
-        val cameraCos = kotlin.math.cos(toRadians(camera.rotation)) * MOVE_SPEED
-        val cameraSin = kotlin.math.sin(toRadians(camera.rotation)) * MOVE_SPEED
-        camera.xPos -= cameraCos
-        camera.yPos -= cameraSin
-      }
-      "KeyA" -> {
-        console.log("key a")
-        camera.rotation -= ROTATE_SPEED
-      }
-      "KeyD" -> {
-        console.log("key d")
-        camera.rotation += ROTATE_SPEED
-      }
-    }
-    paint(context)
-    console.log("camera x:${camera.xPos} y:${camera.yPos} r: ${camera.rotation}")
-  }
-
-  paint(context)
-}
-
-fun paint(raycastContext: RaycastContext) {
-  raycastContext.renderer.clear()
-  raycast(raycastContext)
-  raycastContext.minimap.update(raycastContext.camera)
-}
-
-fun raycast(raycastContext: RaycastContext) {
-  val incrementAngle : Double = raycastContext.camera.fov / SCREEN_WIDTH.toDouble()
-  val rayCastPrecision = 32
-
-  var rayAngle = raycastContext.camera.rotation - raycastContext.camera.halfFov
-
-  for (rayIndex in 0 until SCREEN_WIDTH) {
-
-    var rayX = raycastContext.camera.xPos
-    var rayY = raycastContext.camera.yPos
-
-    val rayCos = kotlin.math.cos(toRadians(rayAngle)) / rayCastPrecision
-    val raySin = kotlin.math.sin(toRadians(rayAngle)) / rayCastPrecision
-
-    var isWall = false
-    while(!isWall) {
-      rayX += rayCos
-      rayY += raySin
-
-      // TODO bounds checking
-      val foo = map[kotlin.math.floor(rayY).toInt()][kotlin.math.floor(rayX).toInt()]
-      if (foo == 1) {
-        isWall = true
-      }
-    }
-
-    val distance = kotlin.math.sqrt((raycastContext.camera.xPos - rayX).pow(2) + (raycastContext.camera.yPos - rayY).pow(2))
-    val wallHeight = kotlin.math.floor((SCREEN_HEIGHT/2) / distance).toInt()
-
-    raycastContext.renderer.drawLine(rayIndex, 0, rayIndex, (SCREEN_HEIGHT/2)-wallHeight, "cyan")
-    raycastContext.renderer.drawLine(rayIndex, (SCREEN_HEIGHT/2)-wallHeight, rayIndex, (SCREEN_HEIGHT/2)+wallHeight, "red")
-    raycastContext.renderer.drawLine(rayIndex, (SCREEN_HEIGHT/2)+wallHeight, rayIndex, SCREEN_HEIGHT, "green")
-
-    rayAngle += incrementAngle
-  }
-}
-
-fun toRadians(degrees: Double): Double {
-  return degrees * kotlin.math.PI / 180
-}
-- 
cgit v1.2.3