[Scummvm-cvs-logs] SF.net SVN: scummvm: [32785] scummvm/trunk/engines/cine
buddha_ at users.sourceforge.net
buddha_ at users.sourceforge.net
Wed Jun 25 17:09:24 CEST 2008
Revision: 32785
http://scummvm.svn.sourceforge.net/scummvm/?rev=32785&view=rev
Author: buddha_
Date: 2008-06-25 08:09:24 -0700 (Wed, 25 Jun 2008)
Log Message:
-----------
Implemented opcode:
- 0x8D: o2_op8D (Didn't come up with a descriptive name yet)
Compares ranges of x, y and mask parameters between two objects.
Possibly some kind of an intersection testing function?
Modified Paths:
--------------
scummvm/trunk/engines/cine/object.cpp
scummvm/trunk/engines/cine/object.h
scummvm/trunk/engines/cine/script_os.cpp
Modified: scummvm/trunk/engines/cine/object.cpp
===================================================================
--- scummvm/trunk/engines/cine/object.cpp 2008-06-25 14:19:56 UTC (rev 32784)
+++ scummvm/trunk/engines/cine/object.cpp 2008-06-25 15:09:24 UTC (rev 32785)
@@ -219,6 +219,29 @@
}
}
+/**
+ * Check if at least one of the range B's endpoints is inside range A,
+ * not counting the starting and ending points of range A.
+ * Used at least by Operation Stealth's opcode 0x8D i.e. 141.
+ */
+bool compareRanges(uint16 aStart, uint16 aEnd, uint16 bStart, uint16 bEnd) {
+ return (bStart > aStart && bStart < aEnd) || (bEnd > aStart && bEnd < aEnd);
+}
+
+uint16 compareObjectParamRanges(uint16 objIdx1, uint16 xAdd1, uint16 yAdd1, uint16 maskAdd1, uint16 objIdx2, uint16 xAdd2, uint16 yAdd2, uint16 maskAdd2) {
+ assert(objIdx1 < NUM_MAX_OBJECT && objIdx2 < NUM_MAX_OBJECT);
+ const objectStruct &obj1 = objectTable[objIdx1];
+ const objectStruct &obj2 = objectTable[objIdx2];
+
+ if (compareRanges(obj1.x, obj1.x + xAdd1, obj2.x, obj2.x + xAdd2) &&
+ compareRanges(obj1.y, obj1.y + yAdd1, obj2.y, obj2.y + yAdd2) &&
+ compareRanges(obj1.mask, obj1.mask + maskAdd1, obj2.mask, obj2.mask + maskAdd2)) {
+ return kCmpEQ;
+ } else {
+ return 0;
+ }
+}
+
uint16 compareObjectParam(byte objIdx, byte type, int16 value) {
uint16 compareResult = 0;
int16 objectParam = getObjectParam(objIdx, type);
Modified: scummvm/trunk/engines/cine/object.h
===================================================================
--- scummvm/trunk/engines/cine/object.h 2008-06-25 14:19:56 UTC (rev 32784)
+++ scummvm/trunk/engines/cine/object.h 2008-06-25 15:09:24 UTC (rev 32785)
@@ -69,6 +69,8 @@
void addObjectParam(byte objIdx, byte paramIdx, int16 newValue);
void subObjectParam(byte objIdx, byte paramIdx, int16 newValue);
+bool compareRanges(uint16 aStart, uint16 aEnd, uint16 bStart, uint16 bEnd);
+uint16 compareObjectParamRanges(uint16 objIdx1, uint16 xAdd1, uint16 yAdd1, uint16 maskAdd1, uint16 objIdx2, uint16 xAdd2, uint16 yAdd2, uint16 maskAdd2);
uint16 compareObjectParam(byte objIdx, byte param1, int16 param2);
} // End of namespace Cine
Modified: scummvm/trunk/engines/cine/script_os.cpp
===================================================================
--- scummvm/trunk/engines/cine/script_os.cpp 2008-06-25 14:19:56 UTC (rev 32784)
+++ scummvm/trunk/engines/cine/script_os.cpp 2008-06-25 15:09:24 UTC (rev 32785)
@@ -596,16 +596,17 @@
/*! \todo Implement this instruction
*/
int FWScript::o2_op8D() {
- uint16 a = getNextWord();
- uint16 b = getNextWord();
- uint16 c = getNextWord();
- uint16 d = getNextWord();
- uint16 e = getNextWord();
- uint16 f = getNextWord();
- uint16 g = getNextWord();
- uint16 h = getNextWord();
- warning("STUB: o2_op8D(%x, %x, %x, %x, %x, %x, %x, %x)", a, b, c, d, e, f, g, h);
- // _currentScriptElement->compareResult = ...
+ uint16 objIdx1 = getNextWord();
+ uint16 xAdd1 = getNextWord();
+ uint16 yAdd1 = getNextWord();
+ uint16 maskAdd1 = getNextWord();
+ uint16 objIdx2 = getNextWord();
+ uint16 xAdd2 = getNextWord();
+ uint16 yAdd2 = getNextWord();
+ uint16 maskAdd2 = getNextWord();
+ debugC(5, kCineDebugScript, "Line: %d: o2_op8D(%d, %d, %d, %d, %d, %d, %d, %d)", _line, objIdx1, xAdd1, yAdd1, maskAdd1, objIdx2, xAdd2, yAdd2, maskAdd2);
+
+ _compare = compareObjectParamRanges(objIdx1, xAdd1, yAdd1, maskAdd1, objIdx2, xAdd2, yAdd2, maskAdd2);
return 0;
}
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