Martin Michelsen
45 lines
1.0 KiB
ArmAsm
45 lines
1.0 KiB
ArmAsm
# (uint16_t entity_id @ eax) -> TObjectV00b441c0* @ eax
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# Preserves all registers except eax
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get_enemy_entity:
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push esi
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push edi
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push edx
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push ecx
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xor edx, edx
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xchg edx, eax
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cmp edx, 0x1000
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jl done
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cmp edx, 0x4000
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jge done
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mov esi, [0x00AAE168] # bs_low = next_player_entity_index
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mov edi, [0x00AAE164]
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lea edi, [edi + esi - 1] # bs_high = next_player_entity_index + next_enemy_entity_index - 1
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bs_again:
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cmp esi, edi
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jge bs_done
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lea ecx, [esi + edi]
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shr ecx, 1
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mov eax, [ecx * 4 + 0x00AAD720] # all_entities[ecx]
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cmp [eax + 0x1C], dx
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jge bs_not_less
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lea esi, [ecx + 1]
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jmp bs_again
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bs_not_less:
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mov edi, ecx
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jmp bs_again
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bs_done:
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mov eax, [esi * 4 + 0x00AAD720] # all_entities[bs_low]
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test eax, eax
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je done
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xor ecx, ecx
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cmp [eax + 0x1C], dx
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cmovne eax, ecx
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done:
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pop ecx
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pop edx
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pop edi
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pop esi
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