1 files changed, 36 insertions, 0 deletions
diff --git a/php/generate-img-map.php b/php/generate-img-map.php
new file mode 100644
index 0000000..504785d
--- /dev/null
+++ b/php/generate-img-map.php
@@ -0,0 +1,36 @@
+<?php
+function gen_img_map(): string
+{
+  global $X_DATA, $Y_DATA, $FX_DATA;
+  require "helpers.php";
+  require "consts.php";
+
+  $out = "";
+
+  $xx = [];
+  for ($x = $HOR_SPACE + $LINES->hor->x1; $x <= $LINES->hor->x2 + 1; $x += $HOR_SPACE) {
+    array_push($xx, $x);
+  }
+  $yy = [];
+  for ($y = $LINES->ver->y2 - $VER_SPACE; $y >= $LINES->ver->y1 - 1; $y -= $VER_SPACE) {
+    array_push($yy, $y);
+  }
+
+  $i = 0;
+  foreach ($X_DATA as $xd) {
+    $x = $xx[$i];
+    if ($xd === NULL) {
+      $out .= "<area shape='circle' coords='$x," . $yy[0] + $VER_SPACE . ",4' onclick='showMenu(" . $FX_DATA[$i]['id'] . ", null)'>\n";
+    } elseif ($xd < 0) {
+      $out .= "<area shape='circle' coords='$x," . $yy[0] + $VER_SPACE . ",4' onclick='showMenu(" . $FX_DATA[$i]['id'] . ", $xd)'>\n";
+    } else {
+      $close_to = (($xd * 10 - $Y_DATA[0] * 10) / 10) / (($Y_DATA[1] * 10 - $Y_DATA[0] * 10) / 10) * $VER_SPACE;
+      $y = ($yy[0] * 10 - $close_to * 10) / 10;
+      $out .= "<area shape='circle' coords='$x,$y,4' onclick='showMenu(" . $FX_DATA[$i]['id'] . ", $xd)'>\n";
+    }
+
+    $i++;
+  }
+
+  return $out;
+}