Tile Picking Interaction
Use when converting a mouse/touch position into the correct isometric tile for selection, highlighting, and placement.
Install
$ agentstack add skill-0xheycat-isometric-game-skills-tile-picking-interaction ✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.
Security review
✓ PassedNo issues found. Passed automated security review. · v0.1.0 How review works →
- ✓ Prompt-injection patterns
- ✓ Secret / credential exfiltration
- ✓ Dangerous shell & filesystem operations
- ✓ Untrusted network calls
- ✓ Known-malicious package signatures
What it can access
- ✓ Network access No
- ✓ Filesystem access No
- ✓ Shell / process execution No
- ✓ Environment & secrets No
- ✓ Dynamic code execution No
From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.
Verified badge
Passed review? Show it. Paste this badge into your README, it links to the public security report.
Links to your public security report.[](https://agentstack.voostack.com/security/report/skill-0xheycat-isometric-game-skills-tile-picking-interaction) Reliability & compatibility
Declared compatibility
Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.
We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.
How agent discovery & health will work →About
Tile Picking & Interaction
Overview
Picking is screen->grid with the camera inverse applied first. This skill turns a pointer position into the exact tile under it, with a highlight and hit-test that respects camera pan/zoom.
When to Use
- Clicking selects the wrong tile.
- You need hover highlight or click-to-place.
- Picking ignores camera pan/zoom.
Process
- Take the pointer position in screen space.
- Apply the inverse camera transform (see
camera-pan-zoom-controls). - Apply screen->grid from
isometric-grid-mathand round to a tile. - Clamp the result to map bounds and check walkable if needed.
- Draw a highlight on the picked tile for feedback.
- On click, dispatch the tile coord to the gameplay handler.
- Test picking at multiple zoom levels and pan offsets.
const world = screenToWorld(pointer, cam);
const tile = worldToGrid(world, W, H); // then roundRationalizations (Stop Lying to Yourself)
| Excuse | Reality | |---|---| | "I will skip the camera inverse" | Then picking breaks the moment you pan/zoom. Always invert. | | "No need to highlight" | Players need feedback on what they will click. Highlight. |
Red Flags - STOP if you catch yourself:
- Picking that ignores camera pan/zoom.
- No rounding so edge tiles mis-select.
- No visual highlight feedback.
Verification
You are NOT done until every box is checked:
- [ ] Picked tile is correct at any pan and zoom.
- [ ] Hover highlight matches the actual selected tile.
- [ ] Clicks dispatch the right grid coordinate.
Source & license
This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.
- Author: 0xheycat
- Source: 0xheycat/isometric-game-skills
- License: MIT
- Homepage: https://0xheycat.github.io/isometric-game-skills/demo/
Install and usage instructions live in the source repository linked above.
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Versions
- v0.1.0 Imported from the upstream source.