Martin Michelsen
104 lines
4.4 KiB
Plaintext
104 lines
4.4 KiB
Plaintext
// This include enables the use of evt2 events (Challenge mode random enemies)
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// in normal quests. The enable_random_enemies label must be called from the
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// start label during the first frame, or it will have no effect.
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// The v2 parts of this script are for documentation purposes only, since the
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// write4 opcode doesn't work properly on any v2 version.
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// Warning: This script is not tested; beware of bugs.
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enable_random_enemies:
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get_game_version r:game_version
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jmpi_eq r:game_version, 2, enable_random_enemies_v2
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jmpi_eq r:game_version, 3, enable_random_enemies_v3_gc
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jmpi_eq r:game_version, 4, enable_random_enemies_v4
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jmp enable_random_enemies_failure
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enable_random_enemies_v2:
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leta r0, r0
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andi r0, 0xFF000000
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jmpi_eq r0, 0x8C000000, enable_random_enemies_v2_dc
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read4 r0, 0x00400080
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leti r1, 0x00710B48 // 2OJW
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jmpi_eq r0, 0x81EA106A, enable_random_enemies_success
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leti r1, 0x0070ECE8 // 2OJZ
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jmpi_eq r0, 0x53E8DF92, enable_random_enemies_success
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jmp enable_random_enemies_failure
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enable_random_enemies_v2_dc:
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leti r1, 0x8C4ED344 // 2OJ5
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read4 r0, 0x8C2F3748
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jmpi_eq r0, 0x61657244, enable_random_enemies_success
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leti r1, 0x8C4E6DE4 // 2OJF
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read4 r0, 0x324F4A46
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jmpi_eq r0, 0x61657244, enable_random_enemies_success
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leti r1, 0x8C4ED344 // 2OEF
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read4 r0, 0x8C2F3738
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jmpi_eq r0, 0x61657244, enable_random_enemies_success
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leti r1, 0x8C4DC844 // 2OPF
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read4 r0, 0x8C2E7CE0
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jmpi_eq r0, 0x61657244, enable_random_enemies_success
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jmp enable_random_enemies_failure
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enable_random_enemies_v3_gc:
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read1 r0, 0x80000003
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leti r1, 8
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shift_left r0, r1
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read1 r1, 0x80000007
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or r0, r1
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leti r1, 0x805C4DE4 // 3OJ2
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jmpi_eq r0, 0x4A02, enable_random_enemies_success
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leti r1, 0x805CF3AC // 3OJ3
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jmpi_eq r0, 0x4A03, enable_random_enemies_success
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leti r1, 0x805D682C // 3OJ4
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jmpi_eq r0, 0x4A04, enable_random_enemies_success
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leti r1, 0x805D65CC // 3OJ5
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jmpi_eq r0, 0x4A05, enable_random_enemies_success
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leti r1, 0x805C56DC // 3OE0
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jmpi_eq r0, 0x4500, enable_random_enemies_success
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leti r1, 0x805CC6BC // 3OE1
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jmpi_eq r0, 0x4501, enable_random_enemies_success
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leti r1, 0x805D5EDC // 3OE2
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jmpi_eq r0, 0x4502, enable_random_enemies_success
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leti r1, 0x805D211C // 3OP0
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jmpi_eq r0, 0x5000, enable_random_enemies_success
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jmp enable_random_enemies_failure
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enable_random_enemies_v4:
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leti r1, 0x0062D370 // 4OJB
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read4 r0, 0x0043D460
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jmpi_eq r0, 0x61657244, enable_random_enemies_success
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leti r1, 0x0062D910 // 4OJD
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read4 r0, 0x0043D7D0
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jmpi_eq r0, 0x61657244, enable_random_enemies_success
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leti r1, 0x00635448 // 4OJU
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read4 r0, 0x00440FE0
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jmpi_eq r0, 0x61657244, enable_random_enemies_success
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leti r1, 0x00632930 // 4OED
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read4 r0, 0x0044174C
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jmpi_eq r0, 0x61657244, enable_random_enemies_success
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leti r1, 0x006321C8 // 4OEU
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read4 r0, 0x00440FEC
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jmpi_eq r0, 0x61657244, enable_random_enemies_success
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leti r1, 0x00632930 // 4OPD
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read4 r0, 0x00441768
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jmpi_eq r0, 0x61657244, enable_random_enemies_success
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leti r1, 0x00632CC8 // 4OPU
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read4 r0, 0x00441AF8
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jmpi_eq r0, 0x61657244, enable_random_enemies_success
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// TODO: We probably should do some kind of version detection here; currently
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// we just assume it's 59NL if it's not any known Xbox version
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read2 r0, 0x00400000
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leti r1, 0x00A955E0 // 59NL
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jmpi_eq r0, 0x5A4D, enable_random_enemies_success
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jmp enable_random_enemies_failure
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enable_random_enemies_success:
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leti r0, 4
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write4 r1, r0
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leti r0, 1
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ret
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enable_random_enemies_failure:
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leti r0, 0
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ret
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