lago Silvaに感謝しますが、いくつかのテストの後、このコードで問題を解決しました:
void InputHandler::Update() {
SDL_Event e;
while (SDL_PollEvent(&e)){
m_keyState = SDL_GetKeyboardState(NULL);
{
switch (e.type)
{
case SDL_QUIT:TheGame::Instance()->Quit(); break;
case SDL_KEYDOWN:KeyboardButtonDown(); break;
case SDL_KEYUP:KeyboardButtonUp(); break;
case SDL_JOYAXISMOTION:JoyAxisMotion(e); break;
case SDL_JOYBUTTONDOWN:JoyButtonDown(e); break;
case SDL_JOYBUTTONUP:JoyButtonUp(e); break;
case SDL_JOYHATMOTION:JoyHatMotion(e); break; //this is the code that I have implemented
case SDL_MOUSEBUTTONDOWN:MouseButtonDown(e); break;
case SDL_MOUSEBUTTONUP:MouseButtonUp(e); break;
case SDL_MOUSEMOTION:MouseMotion(e); break;
default:break;
}
}
}}
コード JoyHatMotion(e) は、この関数を呼び出します。
void InputHandler::JoyHatMotion(SDL_Event e){
int whichOne = e.jaxis.which;
switch (e.jhat.value)
{
case SDL_HAT_DOWN:m_joyHatValues[whichOne]->Sety(1); m_joyHatValues[whichOne]->Setx(0); break;
case SDL_HAT_CENTERED:m_joyHatValues[whichOne]->Setx(0); m_joyHatValues[whichOne]->Sety(0); break;
case SDL_HAT_LEFTDOWN:m_joyHatValues[whichOne]->Setx(-1); m_joyHatValues[whichOne]->Sety(1); break;
case SDL_HAT_LEFT:m_joyHatValues[whichOne]->Setx(-1); m_joyHatValues[whichOne]->Sety(0); break;
case SDL_HAT_LEFTUP:m_joyHatValues[whichOne]->Setx(-1); m_joyHatValues[whichOne]->Sety(-1); break;
case SDL_HAT_UP:m_joyHatValues[whichOne]->Setx(0); m_joyHatValues[whichOne]->Sety(-1); break;
case SDL_HAT_RIGHTUP:m_joyHatValues[whichOne]->Setx(1); m_joyHatValues[whichOne]->Sety(-1); break;
case SDL_HAT_RIGHT:m_joyHatValues[whichOne]->Setx(1); m_joyHatValues[whichOne]->Sety(0); break;
case SDL_HAT_RIGHTDOWN:m_joyHatValues[whichOne]->Setx(1); m_joyHatValues[whichOne]->Sety(1); break;
}}
m_joyHatValues は Vector2D* であることに注意してください
class Vector2D{private:
float x;
float y;
public: Vector2D(float _x, float _y) :x(_x),y(_y){}
float Getx(){ return x; }
float Gety(){ return y; }
void Setx(float _x){ this->x = _x; }
void Sety(float _y){ this->y = _y; }
float Length(){ return sqrt((x*x) + (y*y)); } //la distanza dall'origine
Vector2D operator+(const Vector2D&v2)const{ return Vector2D(this->x + v2.x, this->y + v2.y); }
friend Vector2D operator+=(Vector2D& v1, const Vector2D& v2){ v1.x += v2.x; v1.y += v2.y; return v1; }
Vector2D operator- (const Vector2D&v2)const{ return Vector2D(this->x - v2.x, this->y - v2.y); }
friend Vector2D operator-=(Vector2D& v1, const Vector2D&v2){ v1.x -= v2.x; v1.y -= v2.y; return v1; }
Vector2D operator*(float scala){ return Vector2D(this->x*scala, this->y*scala); }
Vector2D& operator*=(float scala){ this->x *= scala; this->y *= scala; return *this; }
Vector2D operator/(float scala){ return Vector2D(this->x / scala, this->y / scala); }
Vector2D& operator/=(float scala){ this->x /= scala; this->y /= scala; return *this; }
void Normalize(); //porta la distanza a 0 moltiplicanto il vector2D per il suo reciproco
};