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Bug #945 explained; solution included

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git-svn-id: svn://svn.code.sf.net/p/sc2/code/trunk@3180 8092fc87-c524-0410-9efc-e669fe64eaf9
This commit is contained in:
avolkov
2009-09-08 22:56:02 +00:00
parent b43bdf28ba
commit 3c22948d78
1 changed files with 18 additions and 2 deletions
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sc2/src/sc2code/units.h
+18 -2
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@@ -82,8 +82,6 @@ extern int ScreenHeight;
((UNIVERSE_TO_LOGY (MAX_Y_UNIVERSE + 1) > UNIVERSE_TO_LOGY (-1) ? \
UNIVERSE_TO_LOGY (MAX_Y_UNIVERSE + 1) : UNIVERSE_TO_LOGY (-1)) \
- 1L)
#define SECTOR_WIDTH 195
#define SECTOR_HEIGHT 25
#define SPHERE_RADIUS_INCREMENT 11
@@ -92,10 +90,28 @@ extern int ScreenHeight;
#define UNIT_SCREEN_WIDTH 63
#define UNIT_SCREEN_HEIGHT 50
// Bug #945: Simplified, these set the speed of SIS in Hyperspace and
// Quasispace. The ratio between UNIVERSE_UNITS_ and LOG_UNITS_ is
// what sets the speed, and it should be 1:16 to match the original.
// The unit factors are reduced to keep the translation math within
// 32 bits. The original math is unnecessarily complex and depends
// on the screen resolution when it should not.
// Using the new math will break old savegames.
#ifdef NORMALIZED_HYPERSPACE_SPEED
#define LOG_UNITS_X ((SDWORD)(UNIVERSE_UNITS_X * 16))
#define LOG_UNITS_Y ((SDWORD)(UNIVERSE_UNITS_Y * 16))
#define UNIVERSE_UNITS_X (((MAX_X_UNIVERSE + 1) >> 4))
#define UNIVERSE_UNITS_Y (((MAX_Y_UNIVERSE + 1) >> 4))
#else
// Original (and now broken) Hyperspace speed factors
#define SECTOR_WIDTH 195
#define SECTOR_HEIGHT 25
#define LOG_UNITS_X ((SDWORD)(LOG_SPACE_WIDTH >> 4) * SECTOR_WIDTH)
#define LOG_UNITS_Y ((SDWORD)(LOG_SPACE_HEIGHT >> 4) * SECTOR_HEIGHT)
#define UNIVERSE_UNITS_X (((MAX_X_UNIVERSE + 1) >> 4) * 10)
#define UNIVERSE_UNITS_Y (((MAX_Y_UNIVERSE + 1) >> 4))
#endif
#define ROUNDING_ERROR(div) ((div) >> 1)