sand force/rush immunities, sheer power, bp boosting ability

.thumb

.equ table_offset, 0x08250C04 @change this, it's your table of moves
.equ main, 0x08800000

.equ Iron_Fist, 0x5A
.equ Sheer_Force, 0x7E
.equ Sand_Rush, 0x93
.equ Sand_Force, 0xA0
.equ Strong_Jaw, 0xAE
.equ Mega_Launcher, 0xB3

.align 2
.org 0x0801E59E
hook_in_base_damage_calc:
	nop
	ldr r0, base_power_override_rewrite
	bx r0

.align 2
base_power_override_rewrite: .word main + 1

null1:
	nop

.org 0x08021130
hook_in_seteffectwithchancetarget:
	ldr r1, skip_atk15_if_sheer_force
	bx r1

.align 2
skip_atk15_if_sheer_force: .word atk15_sheer_force_check + 1

null2:
	nop

.org 0x08021214
hook_in_seteffecttarget:
	ldr r1, skip_atk16_if_sheer_force
	bx r1

.align 2
skip_atk16_if_sheer_force: .word atk16_sheer_force_check + 1

@--------------------

.org 0x08028D60
sandstorm_check_rewrite:
@r0 is the battle struct
@r1 is attacker x 0x58
@r2 is the attacker
@r3 is nothing important but it's needed for the damage and all the checks
@r4 is the offset of the weather
@r5 is the offset of the attacker
@45 commands needed, no more no less. that's why i have nops in there.
	add r3, r0, r1 @r1 is now the offset of the attacker
	add r3, #0x20 @ability
	ldrb r0, [r3]
	cmp r0, #8 @sand veil
	beq 0x08028DD4 @store 0 damage from sandstorm
	cmp r0, #Sand_Force
	beq 0x08028DD4
	cmp r0, #Sand_Rush
	beq 0x08028DD4
	mov r1, #0
type_check_loop:
	add r3, #1
	ldrb r0, [r3]
	cmp r0, #4 @ground
	beq 0x08028DD4
	cmp r0, #5 @rock
	beq 0x08028DD4
	cmp r0, #8 @steel
	beq 0x08028DD4
	cmp r1, #1
	beq continue_rewrite
	add r1, #1
	b type_check_loop
continue_rewrite:
	ldr r0, status_bits_atk96
	lsl r1, r2, #2
	add r1, r0
	ldr r1, [r1]
	mov r0, #0x80 @dig flag
	and r0, r1
	cmp r0, #0
	bne 0x08028DD4
	mov r0, #80
	lsl r0, #0xB @mov r0, #0x40000, the dive flag
	and r1, r0
	cmp r1, #0
	bne 0x08028DD4
	ldr r1, sandstorm_damage
	ldrh r0, [r3, #8] @max hp
	lsr r0, #4
	str r0, [r1]
	cmp r0, #0
	bne 0x08028DDA
	mov r0, #1
	b 0x08028DD8
	nop
	nop
	nop
.word 0x02022B4C @battle_type_flags
.word 0x02023D6B @b_attacker
.word 0x02023F1C @weather
.word 0x02023BE4 @battle_struct
status_bits_atk96: .word 0x02023DFC
sandstorm_damage: .word 0x02023D50 @also known as b_move_damage but i wrote this after the rest
				@so i don't know what label number to use and i'm too lazy to check

@--------------------

.org main
.align 2
start:
	ldr r0, attacker1
	ldrb r0, [r0]
	mov r1, #0x58 @length of battle struct
	mul r0, r1
	ldr r2, battle_struct1 @make it r2 if there's an ability that stops some of these
	add r0, r0, r2
	mov r4, r0 @r4 is the offset of the attacker
	ldr r0, defender
	ldrb r0, [r0]
	mul r0, r1
	mov r5, r0 @r5 is the defender offset

setup:
	ldr r0, move_to_execute1
	ldrh r6, [r0]
	ldr r0, move_table1
	mov r1, #0xC
	mul r1, r6
	add r1, r0
	ldrb r7, [r1, #0x2]

attacker_ability_jump:
	add r4, #0x20
	ldrb r0, [r4] @ability
	cmp r0, #Iron_Fist
	beq iron_fist_routine
	cmp r0, #Strong_Jaw
	beq strong_jaw_routine
	cmp r0, #Mega_Launcher
	beq mega_launcher_routine
	cmp r0, #Sand_Force
	beq sand_force_routine
	cmp r0, #Sheer_Force @delete this line
	beq sheer_force_routine @delete this line

defender_ability_jump:

all_ability_jump:
	b end1

@r0 has the ability of the attacker/defender, idk i haven't seen any ability that lowers bp yet
@r1 is the offset of the move to be executed
@r2 is the battle struct
@r3 is nothing
@r4 is the offset of the attacker
@r5 is the offset of the defender
@r6 is the move to execute
@r7 is the base power of the move to execute

sand_force_routine:
	ldr r0, weather
	ldrh r0, [r0]
	mov r3, #0x18
	and r0, r3
	cmp r0, #0
	bne end1
check_attack_type:
	ldrb r0, [r1, #3] @type of the move
	cmp r0, #4 @ground
	beq sheer_force_routine
	cmp r0, #5 @rock
	beq sheer_force_routine
	cmp r0, #8 @steel
	bne end1

sheer_force_routine:
	mov r0, r7
	mov r1, #0xA
	ldr r2, divsi3
	bl jump_with_r2 @r0 will be 1/10 of the bp
	mov r1, #3
	mul r0, r1 @and that's the 30%
	add r7, r0
	b end_of_attacking_ability_routine

iron_fist_routine:
	ldr r1, iron_fist_pointer
	b read_table

strong_jaw_routine:
	ldr r1, strong_jaw_pointer
	b read_table

mega_launcher_routine:
	ldr r1, mega_launcher_pointer

read_table:
	ldrh r0, [r1]
	cmp r0, #0
	beq end1
	add r1, #2
	cmp r0, r6
	bne read_table

check_for_iron_fist:
	ldrb r0, [r4] @ability
	cmp r0, #Iron_Fist
	bne add_one_half_boost_for_launcher_jaw

add_one_fifth_to_base_power_for_iron_fist:
	mov r0, r7
	mov r1, #5
	ldr r2, divsi3
	bl jump_with_r2
	add r7, r0, r7 @(bp/5) + bp = r7
	b end_of_attacking_ability_routine

add_one_half_boost_for_launcher_jaw:
	lsr r0, r7, #1
	add r7, r0

end_of_attacking_ability_routine:
	ldr r0, base_power_override
	strh r7, [r0]

end1:
	add sp, #-0x10
	ldr r4, flags_per_side_status
	ldr r5, defender
	ldrb r0, [r5]
	ldr r2, get_side_per_status
	bl jump_with_r2
	ldr r2, return_address1

jump_with_r2:
	bx r2

.align 2
attacker1: .word 0x02023D6B
defender: .word 0x02023D6C
battle_struct1: .word 0x02023BE4
move_to_execute1: .word 0x02023D4A
move_table1: .word table_offset
iron_fist_pointer: .word iron_fist_table
strong_jaw_pointer: .word strong_jaw_table
mega_launcher_pointer: .word mega_launcher_table
divsi3: .word 0x081E4018 + 1
flags_per_side_status: .word 0x02023DDE
get_side_per_status: .word 0x080751D8 + 1
return_address1: .word 0x0801E5AA + 1
weather: .word 0x02023F1C
base_power_override: .word 0x02023F50

@--------------------

atk15_sheer_force_check:
	add r0, r2 @r0 is the offset of the attacker
	add r0, #0x20
	ldrb r0, [r0] @loading the ability to r0
	cmp r0, #Sheer_Force
	beq end3
	cmp r0, #0x20 @serene grace
	bne end4
end2:
	bx lr
end3:
	ldr r0, move_script_pointer1
	ldr r1, [r0]
	add r1, #1
	str r1, [r0]
	ldr r0, return_address2
	bx r0
end4:
	ldr r0, return_address3
	bx r0

.align 2
return_address2: .word 0x080211FC + 1
return_address3: .word 0x08021160 + 1
move_script_pointer1: .word 0x02023D74

@--------------------

atk16_sheer_force_check:
	ldr r0, attacker2
	ldrb r0, [r0]
	mov r1, #0x58
	mul r0, r1
	ldr r1, battle_struct2
	add r0, r1
	add r0, #0x20 @to get in range of the ability
	ldrb r0, [r0]
	cmp r0, #Sheer_Force
	beq end5
continue:
	mov r0, #1
	mov r1, #0
	ldr r2, apply_effect
	bl jump_with_r2_again
end5:
	pop {pc}

jump_with_r2_again:
	bx r2

.align 2
attacker2: .word 0x02023D6B
battle_struct2: .word 0x02023BE4
apply_effect: .word 0x0801FF20 + 1

@--------------------

iron_fist_table:
.hword 0x4 @comet punch
.hword 0x5 @mega punch
.hword 0x7 @fire punch
.hword 0x8 @ice punch
.hword 0x9 @thunder punch
.hword 0x92 @dizzy punch
.hword 0xB7 @mach punch
.hword 0xDF @dynamic punch
.hword 0x108 @focus punch
.hword 0x135 @meteor mash
.hword 0x145 @shadow punch
.hword 0x147 @sky uppercut
.hword 0x167 @hammer arm
.hword 0x199 @drain punch
.hword 0x1A2 @bullet punch
.hword 0x264 @power-up punch
.hword 0x0 @end of table

strong_jaw_table:
.hword 0x2C @bite
.hword 0xF2 @crunch
.hword 0x131 @poison fang
.hword 0x1A6 @thunder fang
.hword 0x1A7 @ice fang
.hword 0x1A8 @fire fang
.hword 0x0 @end of table

mega_launcher_table:
.hword 0x160 @water pulse
.hword 0x18C @aura sphere
.hword 0x18F @dark pulse
.hword 0x196 @dragon pulse
.hword 0x1F9 @heal pulse
.hword 0x26A @origin pulse
.hword 0x0 @end of table