137 lines
4.9 KiB
Markdown
137 lines
4.9 KiB
Markdown
# SIEGE PROTOCOL
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An inverted tower-defense game. You control the enemies — your tower kills them automatically. Every kill pays out more than it costs. Spend the profit on weapons, upgrades, and armor. Keep the tower alive as long as possible.
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**Play online:** [siege-protocol on Gitea](https://git.44r0n.cc/44r0n7/siege-protocol)
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---
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## How to Play
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Open `index.html` in a browser, or serve locally:
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```bash
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python3 -m http.server 8080
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# → http://localhost:8080
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```
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No build step. No dependencies.
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### Controls
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| Input | Action |
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|-------|--------|
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| `1` – `0` | Deploy enemy type 1–10 |
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| Mouse scroll | Adjust send quantity |
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| `Space` | Open/close shop |
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| `I` | Open/close inventory |
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| `Esc` / `P` | Pause / unpause |
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### The Loop
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1. Deploy enemies using credits — each deployment costs credits
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2. Your tower auto-tracks and kills them
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3. Each kill pays a reward (always higher than the deploy cost)
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4. Spend profit in the shop: more weapons, more weapon slots, tower armor/HP, shields
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5. Survive until the tower dies or you go **bankrupt** (no credits, no enemies, can't afford anything)
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**Reserve:** A minimum credit floor you set yourself. Keeps you from accidentally spending down to zero with no way back.
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---
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## Enemies
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| # | Name | Cost | Reward | Notes |
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|---|------|------|--------|-------|
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| 1 | GRUNT | 20 | 30 | Baseline. Weak to poison. |
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| 2 | RUNNER | 30 | 44 | Very fast, low HP. Weak to lightning and poison. |
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| 3 | BRUTE | 80 | 112 | High HP, 3 armor. Weak to void/fire/poison. Physical resistant. |
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| 4 | SWARM | 60 | 84 | Spawns 6 tiny units at once. Weak to fire/lightning. |
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| 5 | PHANTOM | 100 | 138 | 30% dodge. Void-touched. Weak to fire. |
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| 6 | ICELING | 90 | 125 | Ice elemental. Immune to ice, weak to fire/lightning. |
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| 7 | SPARKLING | 110 | 148 | Lightning elemental. Immune to lightning, weak to ice/void. |
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| 8 | VENOM | 120 | 160 | Poison immune. Weak to ice/arcane. |
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| 9 | WRAITH | 200 | 265 | Ignores 80% of armor. Weak to arcane (2×). |
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| 10 | TITAN | 350 | 465 | 120 HP, 8 armor. Void weakness (2×). Extremely slow. |
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---
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## Weapons
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| Weapon | Cost | Type | Notes |
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|--------|------|------|-------|
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| CANNON | free | Projectile | Starting weapon. Upgradeable piercing and crit. |
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| FLAMETHROWER | 800 | Cone | Continuous fire cone. Applies burn DoT. |
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| CHAIN LIGHTNING | 1,200 | Chain | Arcs between up to 3 enemies. |
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| MORTAR | 1,500 | AoE | Lobbed shell, group-targeted. Slow reload. |
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| POISON CLOUD | 1,600 | AoE | Lingering gas cloud with DoT. |
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| FREEZE BOMB | 1,800 | AoE | Freezes enemies solid. |
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| VOID CANNON | 2,000 | Projectile | Massive slow shot. Shreds armor. |
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| LASER | 2,000 | Beam | Pierces all enemies in a line. |
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| ARCANE TURRET | 2,200 | Projectile | Rapid bolts. Applies Amplify debuff (+25% damage taken). |
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| MISSILE POD | 2,400 | Homing AoE | Fires at 3 targets simultaneously. |
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Up to 8 weapon slots can be unlocked via the shop. Each weapon has its own upgrade tree (damage, fire rate, special stats, element infusion).
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---
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## Elements
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Seven elements with per-enemy resistances and weaknesses:
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| Element | Color |
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|---------|-------|
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| 🔥 Fire | Damage over time, strong vs ice/void enemies |
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| ❄️ Ice | Freeze, strong vs lightning/poison |
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| ⚡ Lightning | Arc damage, strong vs fast/swarm enemies |
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| ☠️ Poison | DoT, weak to most elemental enemies |
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| 🌀 Void | Armor bypass, strong vs armored/phantom |
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| ✨ Arcane | Amplify debuff, strong vs void and poison |
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| 💢 Physical | Default element |
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Weapons start with a default element. Purchase **Infuse slots** in a weapon's upgrade tree to add up to 3 additional elements.
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---
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## Tower Upgrades
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- **Hull** — max HP (5 tiers, up to +130 HP total)
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- **Plating** — armor (5 tiers, up to +16 armor total)
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- **Servo Motors** — aim speed (6 tiers, near-instant at max)
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- **Scanner** — targeting range (4 tiers)
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- **Weapon Slots** — unlock slots 2–8
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- **Field Repair** — one-time HP restore (repeatable)
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- **Shields** — choose Dome Shield (all-direction) or Directional Shield (rotates to track threats), each with their own upgrade tree
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---
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## Tech
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- HTML5 Canvas, CSS, vanilla JS — no frameworks, no bundler
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- 1600×900 logical resolution, CSS-scaled to fit any viewport
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- High score persisted in `localStorage` (`siegeprotocol_best`)
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- JS modules share globals; script load order in `index.html` is intentional
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```
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siege-protocol/
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├── index.html # entry point
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├── css/
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│ ├── main.css # game UI
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│ └── dev-console.css
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└── js/
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├── defs.js # enemy/weapon/upgrade definitions
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├── state.js # game state and entity factories
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├── main.js # game loop, init, high score
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├── enemies.js # enemy AI and combat
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├── weapons.js # weapon firing logic
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├── shop.js # shop and upgrade system
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├── renderer*.js # canvas rendering (split by concern)
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└── ...
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```
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---
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## License
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MIT
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