ref: e5d4f741ee4135f937ad180b1353d70291a92c13
dir: /engine/battle/move_effects/sunny_day.asm/
BattleCommand_StartSun: ; 37c07 ; startsun ld a, WEATHER_SUN ld [wBattleWeather], a ld a, 5 ld [wWeatherCount], a call AnimateCurrentMove ld hl, SunGotBrightText jp StdBattleTextBox ; 37c1a