BattleSwirl.ccs

import asm65816
import ASMRef

define Battle_Swirl_Flag = 0x3FE

//Stops music from changing during battle swirl

ROM[0xC22FA9] = JSL (Battle_Swirl)
ROM[0xC0D28B] = JSL (Battle_Swirl)

//C2E8E0
Battle_Swirl: {
	REP	(0x31)
	PHD
	TDC
	ADC_i	(0xFFE8)
	TCD
	LDA_i	(0x0001)
	STA_d	(0x16)
	LDA_i	(0x0004)
	STA_d	(0x14)
	STA_d	(0x04)
	LDY_i	(0x0000)
	STY_d	(0x12)
	LDA_a	(0x4DBC)
	BEQ_a	(Battle_Swirl_Normal_1)
	CMP_i	(0x0001)
	BEQ_a	(Battle_Swirl_Normal_2)
	CMP_i	(0x0002)
	BEQ_a	(Battle_Swirl_Ambush)
	BRA_a	(Battle_Swirl_Boss)

Battle_Swirl_Normal_1:
	LDX_i	(0x00B0)		//Song 0xB0, normal battle swirl
	STX_d	(0x10)
	LDA_i	(0x000E)
	STA_d	(0x02)
	STA_d	(0x0E)
	BRA_a	(Battle_Swirl_Boss)

Battle_Swirl_Normal_2:
	LDX_i	(0x00B0)		//Song 0xB0, normal battle swirl
	STX_d	(0x10)
	LDA_i	(0x001C)
	STA_d	(0x14)
	LDA_i	(0x0005)
	STA_d	(0x04)
	LDY_i	(0x000C)
	STY_d	(0x12)
	LDA_i	(0x0006)
	STA_d	(0x02)
	STA_d	(0x0E)
	BRA_a	(Battle_Swirl_Boss)

Battle_Swirl_Ambush:
	LDX_i	(0x0009)		//Song 0x09, ambushed battle swirl
	STX_d	(0x10)
	STZ_d	(0x14)
	LDA_i	(0x001F)
	STA_d	(0x04)
	TAY
	STY_d	(0x12)
	LDA_i	(0x0006)
	STA_d	(0x02)
	STA_d	(0x0E)

Battle_Swirl_Boss:
	LDA_a	(0x4A8C)
	CMP_i	(0x01C0)		//If enemy group number is less than 0x1C0
	BCC_a	(Battle_Swirl_Music)	//Jump to next part
	LDA_i	(0x0003)
	STA_d	(0x16)
	LDA_i	(0x000E)
	STA_d	(0x02)
	STA_d	(0x0E)
	LDX_i	(0x0008)		//Song 0x08, boss battle swirl
	STX_d	(0x10)

Battle_Swirl_Music:
	LDA_i	(Battle_Swirl_Flag)
	JSL	(0xC21628)
	CMP_i	(0x0001)		//Checks if flag is set
	BEQ_a	(Battle_Swirl_NoMusic)	//If flag is set, skips muting the music

	LDX_d	(0x10)
	TXA
	JSL	(0xC4FBBD)		//Changes music

Battle_Swirl_NoMusic:
	JSL	(0xC04F47)
	LDA_d	(0x0E)
	STA_d	(0x02)
	AND_i	(0x0004)
	BEQ_a	(Battle_Swirl_1)
	LDY_d	(0x12)
	LDX_d	(0x04)
	LDA_d	(0x14)
	JSL	(0xC0B01A)
	LDA_d	(0x02)
	AND_i	(0x0008)
	BEQ_a	(Battle_Swirl_Colors)

//Setup colors 1
	LDX_i	(0x00FF)
	LDA_i	(0x0010)
	JSL	(0xC0B039)
	BRA_a	(Battle_Swirl_1)

//Setup colors 2
Battle_Swirl_Colors:
	LDX_i	(0x00BF)
	LDA_i	(0x0010)
	JSL	(0xC0B039)

Battle_Swirl_1:
	LDY_i	(0x001E)
	LDX_d	(0x02)
	LDA_d	(0x16)
	JSL	(0xC2E8C4)
	LDA_d	(0x02)
	AND_i	(0x0004)
	BEQ_a	(Battle_Swirl_2)
	SEP	(0x20)
	LDA_8	(0x20)
	STA_a	(0xAEC8)
	BRA_a	(Battle_Swirl_Return)

Battle_Swirl_2:
	SEP	(0x20)
	LDA_8	(0x0F)
	STA_a	(0xAEC8)

Battle_Swirl_Return:
	STZ_a	(0xAECB)
	REP	(0x20)
	PLD
	RTL
}



//Battle Swirl Mute
ROM[0xC0D6A4] = JSL (Battle_Swirl_Mute)

//C04A88
Battle_Swirl_Mute: {
	REP	(0x31)
	LDA_i	(Battle_Swirl_Flag)
	JSL	(0xC21628)
	CMP_i	(0x0001)		//Checks if flag is set
	BNE_a	(Battle_Mute_Orig)	//If flag is set, skips muting the music

Battle_Mute_Skip:
	LDA_i	(0x000C)
	STA_a	(0x5D7C)
	LDX_i	(0x98A5)
	LDA_x	(0x0000)
	STA_a	(0x5D7A)
	LDA_i	(0x0003)
	STA_x	(0x0000)
	LDA_i	(0x0002)
	BRA_a	(Battle_Mute_End)

Battle_Mute_Orig:
	LDA_i	(0x000C)
	STA_a	(0x5D7C)
	LDX_i	(0x98A5)
	LDA_x	(0x0000)
	STA_a	(0x5D7A)
	LDA_i	(0x0003)
	STA_x	(0x0000)
	LDA_i	(0x0002)
	JSL	(0xC0AC0C)		//Mutes music

Battle_Mute_End:
	LDA_i	(0x0001)
	STA_a	(0x5D98)
	RTL
}