EMA crossover - BTC/USD 4hr

This is my first strategy script, and looking at other EMA crossover strategies, there wasn't anything that I have seen which allowed different EMAs to be used for each Enter/Exit signal

This uses a long term trend ling (one for Longs, one for shorts) to decide if we are in a bull bear market
• If in a bull market, then it will allow for the longs to be opened
• If in a bear market, then it will allow for the shorts to be opened

Comments and criticisms welcome