The buy signals and the sell signals will be triggered if:
- The previous close is below one specific green line (buy line), and the current close is above that specific green line, or
- The previous close is above one specific green line (buy line), and the current close is below that specific green line
Thus, whether the price is dropping below these lines or rising above these lines, a buy or sell signal will be triggered when they cross green or red lines. Your entry price will be the next open price after this candle's close reaches the lines.
Big thanks to @glaz, who helped me a lot with this script. Please give a like button and share if you like this script. Let me know if you have questions, thanks guys.