Open source

2026-10-26 14:30:13 -05:00 · 2023-10-15 13:06:58 +03:00
parent 256ce800e7
commit 553b121f17
2633 changed files with 769945 additions and 454 deletions
@@ -0,0 +1,75 @@
+function calculate_move(map, cur_x, cur_y, target_x, target_y) {
+    var going_down = cur_y < target_y;
+    var going_right = cur_x < target_x;
+
+    var x_lines = map.x_lines || [];
+    var y_lines = map.y_lines || [];
+
+    var min_x = min(cur_x, target_x);
+    var max_x = max(cur_x, target_x);
+    var min_y = min(cur_y, target_y);
+    var max_y = max(cur_y, target_y);
+
+    var dx = target_x - cur_x;
+    var dy = target_y - cur_y;
+
+    var dydx = dy / (dx + EPS);
+    var dxdy = 1 / dydx;
+
+    for (var i = 0; i < x_lines.length; i++) {
+        var line = x_lines[i];
+        var line_x = line[0];
+        if (max_x < line_x || min_x > line_x || max_y < line[1] || min_y > line[2]) {
+            continue;
+        }
+
+        var y_intersect = cur_y + (line_x - cur_x) * dydx;
+
+        if (y_intersect < line[1] || y_intersect > line[2]) {
+            continue;
+        }
+
+        if (going_down) {
+            target_y = min(target_y, y_intersect);
+        } else {
+            target_y = max(target_y, y_intersect);
+        }
+
+        if (going_right) {
+            target_x = min(target_x, line_x - 3);
+        } else {
+            target_x = max(target_x, line_x + 3);
+        }
+    }
+
+    for (var i = 0; i < y_lines.length; i++) {
+        var line = y_lines[i];
+        var line_y = line[0];
+        if (max_y < line_y || min_y > line_y || max_x < line[1] || min_x > line[2]) {
+            continue;
+        }
+
+        var x_intersect = cur_x + (line_y - cur_y) * dxdy;
+
+        if (x_intersect < line[1] || x_intersect > line[2]) {
+            continue;
+        }
+
+        if (going_right) {
+            target_x = min(target_x, x_intersect);
+        } else {
+            target_x = max(target_x, x_intersect);
+        }
+
+        if (going_down) {
+            target_y = min(target_y, line_y - 3);
+        } else {
+            target_y = max(target_y, line_y + 7);
+        }
+    }
+
+    return {
+        x: target_x,
+        y: target_y
+    };
+}