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Code

Make the InputManager handle analog sticks as input

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This commit is contained in:
Paul Cercueil 2013-09-07 11:09:56 -04:00
parent dba6c32109
commit 3ce314c65d
2 changed files with 47 additions and 9 deletions
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47
src/inputmanager.cpp
View File

@ -48,8 +48,13 @@ InputManager::InputManager()
return;
}
for (i = 0; i < SDL_NumJoysticks(); i++)
joysticks.push_back(SDL_JoystickOpen(i));
for (i = 0; i < SDL_NumJoysticks(); i++) {
struct Joystick joystick = {
SDL_JoystickOpen(i), false, false, false, false,
};
joysticks.push_back(joystick);
}
DEBUG("Opening %i joysticks\n", i);
#endif
}
@ -57,9 +62,8 @@ InputManager::InputManager()
InputManager::~InputManager()
{
#ifndef SDL_JOYSTICK_DISABLED
for (std::vector<SDL_Joystick *>::iterator it = joysticks.begin();
it < joysticks.end(); it++)
SDL_JoystickClose(*it);
for (auto it : joysticks)
SDL_JoystickClose(it.joystick);
#endif
}
@ -130,8 +134,6 @@ bool InputManager::getButton(Button *button, bool wait) {
//TODO: when an event is processed, program a new event
//in some time, and when it occurs, do a key repeat
int i;
#ifndef SDL_JOYSTICK_DISABLED
if (joysticks.size() > 0)
SDL_JoystickUpdate();
@ -152,6 +154,34 @@ bool InputManager::getButton(Button *button, bool wait) {
case SDL_JOYBUTTONDOWN:
source = JOYSTICK;
break;
case SDL_JOYAXISMOTION: {
source = JOYSTICK;
unsigned int axis = event.jaxis.axis;
/* We only handle the first joystick */
if (axis > 1)
return false;
bool *axisState = joysticks[event.jaxis.which].axisState[axis];
if (event.jaxis.value < -20000) {
if (axisState[AXIS_STATE_NEGATIVE])
return false;
axisState[AXIS_STATE_NEGATIVE] = true;
axisState[AXIS_STATE_POSITIVE] = false;
*button = axis ? UP : LEFT;
} else if (event.jaxis.value > 20000) {
if (axisState[AXIS_STATE_POSITIVE])
return false;
axisState[AXIS_STATE_NEGATIVE] = false;
axisState[AXIS_STATE_POSITIVE] = true;
*button = axis ? DOWN : RIGHT;
} else {
axisState[0] = axisState[1] = false;
return false;
}
break;
}
#endif
case SDL_USEREVENT:
switch ((enum EventCode) event.user.code) {
@ -180,6 +210,7 @@ bool InputManager::getButton(Button *button, bool wait) {
return false;
}
int i = 0;
if (source == KEYBOARD) {
for (i = 0; i < BUTTON_TYPE_SIZE; i++) {
if (buttonMap[i].source == KEYBOARD
@ -189,7 +220,7 @@ bool InputManager::getButton(Button *button, bool wait) {
}
}
#ifndef SDL_JOYSTICK_DISABLED
} else if (source == JOYSTICK) {
} else if (source == JOYSTICK && event.type != SDL_JOYAXISMOTION) {
for (i = 0; i < BUTTON_TYPE_SIZE; i++) {
if (buttonMap[i].source == JOYSTICK
&& (unsigned int)event.jbutton.button == buttonMap[i].code) {

9
src/inputmanager.h
View File

@ -66,7 +66,14 @@ private:
ButtonMapEntry buttonMap[BUTTON_TYPE_SIZE];
#ifndef SDL_JOYSTICK_DISABLED
std::vector<SDL_Joystick *> joysticks;
#define AXIS_STATE_POSITIVE 0
#define AXIS_STATE_NEGATIVE 1
struct Joystick {
SDL_Joystick *joystick;
bool axisState[2][2];
};
std::vector<Joystick> joysticks;
#endif
};