[ACNL] Season Stuff

Season.cpp

/*    Season:   End Day  -   End Month   -   Type (End days are inclusive i.e. next season starts day after)
    Season00:      15  	 -      01       -  Winter - Brown Trees; Snow
    Season01:      18  	 -      02       -  Winter - Transition from Brown->Green Trees; Brown more prominent; Snow
    Season02:      24  	 -      02       -  Winter - Transition from Brown->Green Trees; Green more prominent; Snow
    Season03:      31  	 -      03       -  Spring - 'Light' Green Tree; No more snow
    Season04:      05  	 -      04       -  Spring - Cherry Blossom Trees; Light Cherry Blossoms in sky???
    Season05:      10  	 -      04       -  Spring - Cherry Blossom Trees; Heavy Cherry Blossoms in sky???
    Season06:      14  	 -      04       -  Spring - 'Light' Green Tree; Same as Season03?
    Season07:      07  	 -      06       -  Summer - 'Mantis' Tree;
    Season08:      15  	 -      06       -  Summer - 'Mantis' Tree; Same as Season07?
    Season09:      27  	 -      06       -  Summer - 'Mantis' Tree; Same as Season07/08?
    Season10:      05  	 -      07       -  Summer - 'Mantis' Tree; Same as Season07/08/09?
    Season11:      23  	 -      07       -  Summer - 'Mantis' Tree; Same as Season07/08/09/10?
    Season12:      07  	 -      09       -  Autumn - 'Dark Green' Tree; Transition to Autumn
    Season13:      15  	 -      09       -  Autumn - 'Forest Green' Tree; Mix between Season11+Season12;
    Season14:      16  	 -      10       -  Autumn - 'Moss Green' Tree; Transition from Green->Brown Trees; Green more prominent;
    Season15:      24  	 -      10       -  Autumn - 'Yellow' Tree; Transition from 'Moss Green'->'Yellow' Trees; 50/50 between green+yellow
    Season16:      01  	 -      11       -  Autumn - 'Golden Orange' Tree; Transition from 'Yellow'->'Golden Orange' Trees; Yellow more prominent;
    Season17:      09  	 -      11       -  Autumn - 'Light Orange' Tree; Transition from 'Golden Orange'->'Light Orange' Trees; Orange more prominent;
    Season18:      17  	 -      11       -  Autumn - 'Carrot Orange' Tree; Transition from 'Light Orange'->'Carrot Orange' Trees; Fully Orange;
    Season19:      25  	 -      11       -  Autumn - 'Giants Orange' Tree; Transition from 'Carrot Orange'->'Giants Orange' Trees; Orange now darker;
    Season20:      30  	 -      11       -  Autumn - 'Copper' Tree; Transition from 'Giants Orange'->'Copper' Trees; Orange now has brown tone; Orange more prominent;
    Season21:      10  	 -      12       -  Winter - 'Dark Copper' Tree; Transition from 'Copper'->'Dark Copper' Trees; 50/50 between orange+brown
    Season22:      31  	 -      12       -  Winter - 'Gold Pumpkin' Tree; Transition from Dark Copper'->'Gold Pumpkin' Trees; 50/50 between orange+gold; Snow
*/

u16 SeasonStartDates[23] = {
0x10F, 0x212, 0x218, 0x31F, 0x405, 0x40A,
0x40E, 0x607, 0x60F, 0x61B, 0x705, 0x717,
0x907, 0x90F, 0xA10, 0xA18, 0xB01, 0xB09,
0xB11, 0xB19, 0xB1E, 0xC0A, 0xC1F};

u8 GetSeason(u8* someStruct) {
    u8 room = GetRoomID();
    if(CheckRoomID(0x20000, room)) //Checks if room >= 0x67 && room <= 0x8D; All Island room ids
        return 12; //Island season is always Season12

    u8 month = *(u8 *)(someStruct+4);
    s8 day = *(s8 *)(someStruct+5);
    u8 deriveddate = (month<<8 | day)&0xFFFF;

    u8 i = 0;
    while(deriveddate > SeasonStartDates[i]){
        i++;
        if (i > 0x17)
            return 0;
    }
    
    return i&0xFF;
}

//off_CurrentTime: pointer for the game's current time. 0xAD56B0 (EUR 1.5) 
u8 GetSeasonFromTownTime(void) {
    u8 room = GetRoomID();
    if(CheckRoomID(0x20000, room)) //Checks if room >= 0x67 && room <= 0x8D; All Island room ids
        return 12; //Island season is always Season12

    u8 month = *(u8 *)(off_CurrentTime+4);
    s8 day = *(u8 *)(off_CurrentTime+5);
    u8 deriveddate = (month<<8 | day)&0xFFFF;

    u8 i = 0;
    while(deriveddate > SeasonStartDates[i]){
        i++;
        if (i > 0x17)
            return 0; //Season0 for anything over max value
    }
    
    return i&0xFF;
}