SPOTTER - illustrated animated JavaScript presentation, third edition
Open index.html in a current browser. No install or build step needed.
Controls: F enters/exits fullscreen on desktop. Arrow keys, space, swipe, or screen edges change slides. M toggles sound. Motion pauses animation. Sound starts after a tap, as required by browsers.
The desktop slide is 16:9; all letterbox/pillarbox space outside it is black. Portrait phones use a readable scrolling layout. Landscape phones use a compact two-column layout.
Editable HTML/CSS/JavaScript content, generated illustration assets, frame-by-frame walk sprites and timed compositing. Source content and diagrams are editable. Generated artwork is illustrative, not evidence of actual animals, people or incidents.
Survey bases are91/90/89. LP inputs are synthetic. No real emergency alert, camera access or GPS collection occurs.
Files: index.html, style.css, app.js, audio.js, art.js, scenes_a/b/c.js, cinematic.js, assets/.
