Initial commit: labirynt 3D pseudo-raycasting game

lib/player.dart

@@ -0,0 +1,50 @@
+import 'dart:math';
+import 'maze.dart';
+
+class Player {
+  double x;
+  double y;
+  double angle;
+  static const double moveSpeed = 0.05;
+  static const double rotSpeed = 0.04;
+
+  Player({required this.x, required this.y, this.angle = 0});
+
+  void moveForward(Maze maze) {
+    _tryMove(maze, cos(angle) * moveSpeed, sin(angle) * moveSpeed);
+  }
+
+  void moveBackward(Maze maze) {
+    _tryMove(maze, -cos(angle) * moveSpeed, -sin(angle) * moveSpeed);
+  }
+
+  void strafeLeft(Maze maze) {
+    _tryMove(maze, cos(angle - pi / 2) * moveSpeed, sin(angle - pi / 2) * moveSpeed);
+  }
+
+  void strafeRight(Maze maze) {
+    _tryMove(maze, cos(angle + pi / 2) * moveSpeed, sin(angle + pi / 2) * moveSpeed);
+  }
+
+  void rotateLeft() {
+    angle -= rotSpeed;
+  }
+
+  void rotateRight() {
+    angle += rotSpeed;
+  }
+
+  void _tryMove(Maze maze, double dx, double dy) {
+    const margin = 0.2;
+    final nx = x + dx;
+    final ny = y + dy;
+    if (!maze.isWall((nx + margin).toInt(), y.toInt()) &&
+        !maze.isWall((nx - margin).toInt(), y.toInt())) {
+      x = nx;
+    }
+    if (!maze.isWall(x.toInt(), (ny + margin).toInt()) &&
+        !maze.isWall(x.toInt(), (ny - margin).toInt())) {
+      y = ny;
+    }
+  }
+}