Play Roulette

This project serves as a test for the decentralized crypto casino located at Decentralized Crypto Casino.

Prerequisites

Before you begin, ensure you've completed the following steps:

1. Create Ethereum Accounts

• Modify the num_accounts variable in create_eth_addresses.py.
• Execute create_eth_addresses.py.
• After execution, the addresses and private keys will be saved in .ethereum_accounts.txt.

2. Transfer DFI and DUSD to the Ethereum Addresses

• Prepare a file named .dvmaddress.txt containing the dvm address. Ensure it has num_accounts*2 DFI tokens and num_accounts*10 DUSD.

  Note: If the script isn't run at the Changi node, copy the .cookie file from the node (located at ~/.defi/changi/.cookie) to the project root folder.

• Verify your connection to the node at url="127.0.0.1", port=20554. This might require SSH port forwarding.

• Execute transfer_dfi_dusd.py.

  This script checks the token balance at the Ethereum address. If insufficient, it initiates a transfer and prints the transaction ID. Ensure the transactions are confirmed before re-running the script.

3. Purchase CAS Token with DUSD

• Execute buy_cas.py to purchase 1000 CAS Tokens using 10 DUSD.

Periodic Test

For regular testing:

• Run play_roulette.py periodically. This will simulate a roulette game, placing a bet on BLACK using 1 CAS for all addresses.

Note

The EVM RPC URL is set in libs/my_eth_utils.py to the local port: http://127.0.0.1:20551.

Alternatives include public URLs like https://testnet-dmc.mydefichain.com:20551 But to many requests can results to the error: HTTPError: 429 Client Error: Too Many Requests for url: https://testnet-dmc.mydefichain.com:20551/

Run with crontab at the changi node

Clone source and install requirements

git clone https://github.com/DeFiPages/PlayRoulette.git
cd PlayRoulette
python3 -m venv venv
source venv/bin/activate
pip3 install -r requirements.txt

Execute tasks in Prerequisites

All eth accounts must have 2 DFI for gas and 1000 CAS Token to play.

In crontab -e append to run hourly:

42 * * * * /bin/bash -c 'date;cd ~/PlayRoulette && source venv/bin/activate && python3 play_roulette.py'  >> ~/play_roulette.log 2>&1

Check that the full path ~/PlayRoulette/venv/bin/activate is correct.