diff options
Diffstat (limited to 'engines')
| -rw-r--r-- | engines/sci/engine/script_patches.cpp | 73 |
1 files changed, 67 insertions, 6 deletions
diff --git a/engines/sci/engine/script_patches.cpp b/engines/sci/engine/script_patches.cpp index 0ddc8d3c4f..ca6a439692 100644 --- a/engines/sci/engine/script_patches.cpp +++ b/engines/sci/engine/script_patches.cpp @@ -2853,14 +2853,75 @@ static const uint16 qfg3PatchChiefPriority[] = { PATCH_END }; +// Partly WORKAROUND: +// During combat, the game is not properly throttled. That's because the game uses +// an inner loop for combat and does not iterate through the main loop. +// It also doesn't call kGameIsRestarting. This may get fixed properly at some point +// by rewriting the speed throttler. +// +// Additionally Sierra set the cycle speed of the hero to 0. Which explains +// why the actions of the hero are so incredibly fast. This issue also happened +// in the original interpreter, when the computer was too powerful. +// +// Applies to at least: English, French, German, Italian, Spanish PC floppy +// Responsible method: combatControls::dispatchEvent (script 550) + WarriorObj in heap +// Fixes bug #6247 +static const uint16 qfg3SignatureCombatSpeedThrottling1[] = { + 0x31, 0x0d, // bnt [skip code] + SIG_MAGICDWORD, + 0x89, 0xd2, // lsg global[D2h] + 0x35, 0x00, // ldi 0 + 0x1e, // gt? + 0x31, 0x06, // bnt [skip code] + 0xe1, 0xd2, // -ag global[D2h] (jump skips over this) + 0x81, 0x58, // lag global[58h] + 0xa3, 0x01, // sal local[01] + SIG_END +}; + +static const uint16 qfg3PatchCombatSpeedThrottling1[] = { + 0x80, 0xd2, // lsg global[D2h] + 0x14, // or + 0x31, 0x06, // bnt [skip code] - saves 4 bytes + 0xe1, 0xd2, // -ag global[D2h] + 0x81, 0x58, // lag global[58h] + 0xa3, 0x01, // sal local[01] (jump skips over this) + // our code + 0x76, // push0 + 0x43, 0x2c, 0x00, // callk GameIsRestarting <-- add this so that our speed throttler is triggered + PATCH_END +}; + +static const uint16 qfg3SignatureCombatSpeedThrottling2[] = { + SIG_MAGICDWORD, + SIG_UINT16(12), // priority 12 + SIG_UINT16(0), // underbits 0 + SIG_UINT16(0x4010), // signal 4010h + SIG_ADDTOOFFSET(+18), + SIG_UINT16(0), // scaleSignal 0 + SIG_UINT16(128), // scaleX + SIG_UINT16(128), // scaleY + SIG_UINT16(128), // maxScale + SIG_UINT16(0), // cycleSpeed + SIG_END +}; + +static const uint16 qfg3PatchCombatSpeedThrottling2[] = { + PATCH_ADDTOOFFSET(+32), + PATCH_UINT16(5), // set cycleSpeed to 5 + PATCH_END +}; + // script, description, signature patch static const SciScriptPatcherEntry qfg3Signatures[] = { - { true, 944, "import dialog continuous calls", 1, qfg3SignatureImportDialog, qfg3PatchImportDialog }, - { true, 440, "dialog crash when asking about Woo", 1, qfg3SignatureWooDialog, qfg3PatchWooDialog }, - { true, 440, "dialog crash when asking about Woo", 1, qfg3SignatureWooDialogAlt, qfg3PatchWooDialogAlt }, - { true, 52, "export character save bug", 2, qfg3SignatureExportChar, qfg3PatchExportChar }, - { true, 54, "import character from QfG1 bug", 1, qfg3SignatureImportQfG1Char, qfg3PatchImportQfG1Char }, - { true, 640, "chief in hut priority fix", 1, qfg3SignatureChiefPriority, qfg3PatchChiefPriority }, + { true, 944, "import dialog continuous calls", 1, qfg3SignatureImportDialog, qfg3PatchImportDialog }, + { true, 440, "dialog crash when asking about Woo", 1, qfg3SignatureWooDialog, qfg3PatchWooDialog }, + { true, 440, "dialog crash when asking about Woo", 1, qfg3SignatureWooDialogAlt, qfg3PatchWooDialogAlt }, + { true, 52, "export character save bug", 2, qfg3SignatureExportChar, qfg3PatchExportChar }, + { true, 54, "import character from QfG1 bug", 1, qfg3SignatureImportQfG1Char, qfg3PatchImportQfG1Char }, + { true, 640, "chief in hut priority fix", 1, qfg3SignatureChiefPriority, qfg3PatchChiefPriority }, + { true, 550, "combat speed throttling script", 1, qfg3SignatureCombatSpeedThrottling1, qfg3PatchCombatSpeedThrottling1 }, + { true, 550, "combat speed throttling heap", 1, qfg3SignatureCombatSpeedThrottling2, qfg3PatchCombatSpeedThrottling2 }, SCI_SIGNATUREENTRY_TERMINATOR }; |