Four Drop
Drop discs into a seven-column grid and line up four before your opponent - against the CPU or a friend.
Board Emulator verified v1.0.0 18.3 KB
The JAR and JAD are the Original Java ME Version for phones and emulators. How to install.
About
The vertical four-in-a-row game built for the keypad: press 1-7 to drop straight into a column, or steer with the joystick. The CPU uses alpha-beta search with a window-scoring evaluation at depth 2, 4 or 6, and a hot-seat mode lets two people share one phone. The starting player alternates every game and your record against the CPU is saved.
Objective: Connect four of your discs in a row - horizontally, vertically or diagonally.
Modes: vs CPU Easy, vs CPU Normal, vs CPU Hard, 2 Players
board game four in a row versus cpu two player
Screenshots captured from the real JAR at 176x208 on the project's reference runtime; the third image is rendered by MicroEmulator 2.0.4.
Controls
| Key | Action |
|---|---|
| 1-7 | Drop disc in that column |
| Joystick left/right | Move cursor |
| Select | Drop at cursor |
| * | Pause menu |
In every game: 5 selects in menus, * pauses, and on the title screen # opens help and 0 toggles sound. The joystick and 2/4/6/8 are interchangeable.
Verification
| Level | Status | Details |
|---|---|---|
| Build verified | Yes | Compiled against CLDC 1.0 / MIDP 2.0; JAR + JAD generated |
| Reference runtime | Yes | Passed at 128x128, 128x160, 176x208, 176x220, 240x320 |
| Emulator verified | Yes | Automated smoke test on MicroEmulator 2.0.4 (176x220) |
| Real device verified | No | Not yet tested on real hardware |
Tried it on a real phone? Send a device report.
Technical details
| MIDlet | fourdrop.FourDropMIDlet |
|---|---|
| Platform | Java ME, CLDC 1.0, MIDP 2.0 |
| JAR size | 18.3 KB |
| Screens | 128x128, 128x160, 176x208, 176x220, 240x320 |
| Storage | RMS record store gk (settings, best score) |