Mercurial > sdl-ios-xcode
view VisualC/SDL.sln @ 3496:78fc8ea578b2
Joe 2009-11-23 21:31:10 PST
If type is ::SDL_HAPTIC_CARTESIAN, direction is encoded by three positions
367 * (X axis, Y axis and Z axis (with 3 axes)). ::SDL_HAPTIC_CARTESIAN
uses
368 * the first three \c dir parameters. The cardinal directions would
be:
369 * - North: 0,-1, 0
370 * - East: -1, 0, 0
371 * - South: 0, 1, 0
372 * - West: 1, 0, 0
typedef struct SDL_HapticDirection
{
Uint8 type; /**< The type of encoding. */
Uint16 dir[3]; /**< The encoded direction. */
} SDL_HapticDirection;
An unsigned int can't store negative values and I don't see an alternate way to
encode them in the docs or source. The best I have been able to come up with is
using a negative magnitude for the effect but this will only get me 2 of the 4
quadrants in the plane for 2d effects. I looked at the win32 and linux
implementations and I believe is is safe to use signed ints in the direction
struct. I am unfamiliar with the darwin haptics API so I don't know if it is
safe.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Fri, 27 Nov 2009 19:29:27 +0000 |
parents | d63e9f5944ae |
children | be2250bb482b cb449b2f65ac |
line wrap: on
line source
Microsoft Visual Studio Solution File, Format Version 9.00 # Visual C++ Express 2005 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "SDL", "SDL\SDL.vcproj", "{81CE8DAF-EBB2-4761-8E45-B71ABCCA8C68}" EndProject Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "SDLmain", "SDLmain\SDLmain.vcproj", "{DA956FD3-E142-46F2-9DD5-C78BEBB56B7A}" EndProject Global GlobalSection(SolutionConfigurationPlatforms) = preSolution Debug|Win32 = Debug|Win32 Release_NoSTDIO|Win32 = Release_NoSTDIO|Win32 Release|Win32 = Release|Win32 EndGlobalSection GlobalSection(ProjectConfigurationPlatforms) = postSolution {81CE8DAF-EBB2-4761-8E45-B71ABCCA8C68}.Debug|Win32.ActiveCfg = Debug|Win32 {81CE8DAF-EBB2-4761-8E45-B71ABCCA8C68}.Debug|Win32.Build.0 = Debug|Win32 {81CE8DAF-EBB2-4761-8E45-B71ABCCA8C68}.Release_NoSTDIO|Win32.ActiveCfg = Release|Win32 {81CE8DAF-EBB2-4761-8E45-B71ABCCA8C68}.Release_NoSTDIO|Win32.Build.0 = Release|Win32 {81CE8DAF-EBB2-4761-8E45-B71ABCCA8C68}.Release|Win32.ActiveCfg = Release|Win32 {81CE8DAF-EBB2-4761-8E45-B71ABCCA8C68}.Release|Win32.Build.0 = Release|Win32 {DA956FD3-E142-46F2-9DD5-C78BEBB56B7A}.Debug|Win32.ActiveCfg = Debug|Win32 {DA956FD3-E142-46F2-9DD5-C78BEBB56B7A}.Debug|Win32.Build.0 = Debug|Win32 {DA956FD3-E142-46F2-9DD5-C78BEBB56B7A}.Release_NoSTDIO|Win32.ActiveCfg = Release_NoSTDIO|Win32 {DA956FD3-E142-46F2-9DD5-C78BEBB56B7A}.Release_NoSTDIO|Win32.Build.0 = Release_NoSTDIO|Win32 {DA956FD3-E142-46F2-9DD5-C78BEBB56B7A}.Release|Win32.ActiveCfg = Release|Win32 {DA956FD3-E142-46F2-9DD5-C78BEBB56B7A}.Release|Win32.Build.0 = Release|Win32 EndGlobalSection GlobalSection(SolutionProperties) = preSolution HideSolutionNode = FALSE EndGlobalSection EndGlobal