add return button on level completion

2 files changed, 23 insertions, 8 deletions

diff --git a/level.js b/level.js
index 9f6ee60..78af6d0 100644
--- a/level.js
+++ b/level.js
@@ -2,8 +2,8 @@ import { setupLevelSelectUi } from './levelSelect.js';
 import { render } from './render.js';
 
 
-const X_START = '0.7t+sin(t)-6';
-const Y_START = '0.7t-6';
+const X_START = '0';
+const Y_START = 't';
 
 const PATH_LEN = 20;
 const PATH_STEP = PATH_LEN/1000;
@@ -218,7 +218,7 @@ function finishLevel(ui, level, fail) {
   } else {
     ui.sfx.doneAudio.currentTime = 0;
     ui.sfx.doneAudio.play();
-    showAlert(ui, 'navigation successful: contract complete');
+    showAlert(ui, 'navigation successful: contract complete', true);
     // ui.message.innerText = 'mission complete!';
     level.completed = true;
   }
@@ -226,7 +226,7 @@ function finishLevel(ui, level, fail) {
 }
 
 
-function showAlert(ui, text) {
+function showAlert(ui, text, ret) {
   const div = document.createElement('div');
   div.classList.add('center-screen-container');
   const div2 = document.createElement('div');
@@ -252,4 +252,23 @@ function showAlert(ui, text) {
   }
   p.appendChild(document.createElement('br'));
   p.appendChild(button);
+
+  if (ret) {
+    const returnBtn = document.createElement('input');
+    returnBtn.type = 'button';
+    returnBtn.value = '↲ return';
+    returnBtn.onmouseenter = () => {
+      ui.sfx.buttonEnterAudio.currentTime = 0;
+      ui.sfx.buttonEnterAudio.play();
+    }
+    returnBtn.onclick = () => {
+      ui.sfx.buttonClickAudio.currentTime = 0;
+      ui.sfx.buttonClickAudio.play();
+      ui.root.innerText = '';
+      ui.root.classList.remove('center');
+      window.onresize = () => {};
+      setupLevelSelectUi(ui.root, ui.sfx);
+    }
+    p.appendChild(returnBtn);
+  }
 }
diff --git a/levelSelect.js b/levelSelect.js
index 9837a05..5e734c2 100644
--- a/levelSelect.js
+++ b/levelSelect.js
@@ -19,10 +19,6 @@ const levels = {
     ['parabolic 0'],
     buildLevel(t => -0.5*(t-3)**2 + 4, t => t-3, [...Array(8).keys()].map(x => x - 2)),
   ],
-  'logarithmic': [
-    ['parabolic 0'],
-    buildLevel(t => t-3, t => 4*Math.log(t), [...Array(8).keys()].map(x => x - 2)),
-  ],
   'orbital': [ 
     ['parabolic 0', 'sinusoidal'],
     buildLevel(t => 8*Math.cos(t), t => 8*Math.sin(t), [...Array(8).keys()].map(x => Math.PI * x / 4)),