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dpslog: SPELL_CAST_FAILED for other units via SMSG_SPELL_FAILED_OTHER (0x6E75F0); addon tracks DAMAGE_SPLIT, SPELL_DISPEL_FAILED, UNIT_DESTROYED (37 subevents)

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MarcelineVQ
2026-03-17 14:57:22 -07:00
parent 3eff6928b9
commit 8bd82aeea7
2 changed files with 64 additions and 5 deletions
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src/dpslog/dpslog.zig
+45 -4
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@@ -993,7 +993,7 @@ fn spellStartDetour(unk: u32, opcode: u32, unk2: u32, cds: u32) callconv(hook.cc
// =============================================================================
// Hook: CastResultHandler (0x6E7330)
// Packet: SMSG_CAST_RESULT (opcode 0x0130)
// Packet: SMSG_CAST_RESULT (opcode 0x0130) — local player only
// Fires: SPELL_CAST_FAILED (when status != 0)
// =============================================================================
@@ -1010,12 +1010,11 @@ fn castResultDetour(unk: u32, opcode: u32, unk2: u32, cds: u32) callconv(hook.cc
cdsSetRead(cds, saved_read);
if (spell_id != null and status != null and status.? != 0) {
// SMSG_CAST_RESULT is only sent to the casting player
const player_guid = getActivePlayerGuid();
if (player_guid != 0) {
const src_str = guidToString(player_guid);
const school = getSpellSchool(spell_id.?);
log.fmt("SPELL_CAST_FAILED: spell={d} status={d}\n", .{ spell_id.?, status.? });
log.fmt("SPELL_CAST_FAILED: spell={d} status={d} (self)\n", .{ spell_id.?, status.? });
fireSpellStr(SUB_SPELL_CAST_FAILED, src_str, GUID_ZERO, spell_id.?, school, "FAILED");
}
}
@@ -1023,6 +1022,41 @@ fn castResultDetour(unk: u32, opcode: u32, unk2: u32, cds: u32) callconv(hook.cc
return cast_result_hook.callOriginal(.{ unk, opcode, unk2, cds });
}
// =============================================================================
// Hook: HandleSpellInterruptUpdate (0x6E75F0)
// Handles SMSG_SPELL_FAILED_OTHER (0x2A6) and SMSG_SPELL_FAILURE (0x133)
// Broadcast to all nearby — captures other units' cast failures.
// stdcall(msgType, dataBuffer), RET 8.
// Packet: packedGuid + spellId(u32)
// Fires: SPELL_CAST_FAILED for other units
// =============================================================================
var spell_failed_other_hook: hook.Detour(DispelFailedFn) = .{}; // same CC as dispel failed: stdcall(2), ret 8
fn spellFailedOtherDetour(msg_type: u32, cds: u32) callconv(hook.cc.stdcall) ?*anyopaque {
asm volatile ("" ::: .{ .esi = true, .edi = true, .ebx = true });
const saved_read = cdsGetRead(cds);
const caster_guid = cdsGetPackedGuid(cds);
const spell_id = cdsGet(u32, cds);
cdsSetRead(cds, saved_read);
if (caster_guid != null and spell_id != null and spell_id.? != 0) {
// Skip if this is the local player (already handled by CastResultHandler)
const player_guid = getActivePlayerGuid();
if (caster_guid.? != player_guid) {
const src_str = guidToString(caster_guid.?);
const school = getSpellSchool(spell_id.?);
log.fmt("SPELL_CAST_FAILED: spell={d} caster=0x{x} (other)\n", .{ spell_id.?, caster_guid.? });
fireSpellStr(SUB_SPELL_CAST_FAILED, src_str, GUID_ZERO, spell_id.?, school, "FAILED");
}
}
return spell_failed_other_hook.callOriginal(.{ msg_type, cds });
}
// =============================================================================
// Hook: HandleUnitDeath (0x605860) — death transition callback
// __fastcall(ECX=unitObject), plain RET (0 stack params)
@@ -1692,7 +1726,13 @@ pub fn installHooks() void {
if (cast_result_hook.attach(0x6E7330, &castResultDetour) != .ok) {
log.print("FAILED to hook CastResultHandler\n");
} else {
log.print("Hooked CastResultHandler\n");
log.print("Hooked CastResultHandler (SPELL_CAST_FAILED self)\n");
}
if (spell_failed_other_hook.attach(0x6E75F0, &spellFailedOtherDetour) != .ok) {
log.print("FAILED to hook HandleSpellInterruptUpdate\n");
} else {
log.print("Hooked HandleSpellInterruptUpdate (SPELL_CAST_FAILED others)\n");
}
if (spell_missed_hook.attach(0x62BAB0, &spellMissedDetour) != .ok) {
@@ -1776,6 +1816,7 @@ pub fn installHooks() void {
pub fn removeHooks() void {
if (g_is_hook_owner) {
spell_failed_other_hook.detach();
dispel_failed_hook.detach();
aura_duration_hook.detach();
spell_effect_hook.detach();