fix: row/col starts from 1 rather than 0

Author: lambdalisue

builtin/coordinator/compact.ts

@@ -110,8 +110,8 @@ export function compact(
       heightMax,
       Math.max(heightMin, Math.floor(screenHeight * heightRatio)),
     );
-    const col = Math.floor((screenWidth - width) / 2);
-    const row = Math.floor((screenHeight - height) / 2);
+    const col = 1 + Math.floor((screenWidth - width) / 2);
+    const row = 1 + Math.floor((screenHeight - height) / 2);
     return { col, row, width, height };
   };
 

builtin/coordinator/modern.ts

@@ -106,8 +106,8 @@ export function modern(options: ModernOptions = {}): Coordinator {
       heightMax,
       Math.max(heightMin, Math.floor(screenHeight * heightRatio)),
     );
-    const col = Math.floor((screenWidth - width) / 2);
-    const row = Math.floor((screenHeight - height) / 2);
+    const col = 1 + Math.floor((screenWidth - width) / 2);
+    const row = 1 + Math.floor((screenHeight - height) / 2);
     return { col, row, width, height };
   };
 

builtin/coordinator/separate.ts

@@ -101,8 +101,8 @@ export function separate(options: SeparateOptions = {}): Coordinator {
       heightMax,
       Math.max(heightMin, Math.floor(screenHeight * heightRatio)),
     );
-    const col = Math.floor((screenWidth - width) / 2);
-    const row = Math.floor((screenHeight - height) / 2);
+    const col = 1 + Math.floor((screenWidth - width) / 2);
+    const row = 1 + Math.floor((screenHeight - height) / 2);
     return { col, row, width, height };
   };
 

util/testutil.ts

@@ -68,7 +68,7 @@ export function renderBorder(
     for (let x = 0; x < width + 2; x++) {
       const char = getChar(x, y);
       if (char) {
-        canvas[row + y][col + x] = char;
+        canvas[row - 1 + y][col - 1 + x] = char;
       }
     }
   }