mirror of
https://github.com/ddnet/ddnet.git
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348 lines
8.6 KiB
C++
348 lines
8.6 KiB
C++
/* (c) Magnus Auvinen. See licence.txt in the root of the distribution for more information. */
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/* If you are missing that file, acquire a complete release at teeworlds.com. */
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#include "SDL.h"
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#include <base/system.h>
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#include <engine/shared/config.h>
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#include <engine/graphics.h>
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#include <engine/input.h>
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#include <engine/keys.h>
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#include "input.h"
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//print >>f, "int inp_key_code(const char *key_name) { int i; if (!strcmp(key_name, \"-?-\")) return -1; else for (i = 0; i < 512; i++) if (!strcmp(key_strings[i], key_name)) return i; return -1; }"
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// this header is protected so you don't include it from anywere
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#define KEYS_INCLUDE
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#include "keynames.h"
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#undef KEYS_INCLUDE
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void CInput::AddEvent(char *pText, int Key, int Flags)
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{
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if(m_NumEvents != INPUT_BUFFER_SIZE)
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{
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m_aInputEvents[m_NumEvents].m_Key = Key;
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m_aInputEvents[m_NumEvents].m_Flags = Flags;
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if(!pText)
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m_aInputEvents[m_NumEvents].m_aText[0] = 0;
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else
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str_copy(m_aInputEvents[m_NumEvents].m_aText, pText, sizeof(m_aInputEvents[m_NumEvents].m_aText));
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m_aInputEvents[m_NumEvents].m_InputCount = m_InputCounter;
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m_NumEvents++;
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}
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}
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CInput::CInput()
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{
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mem_zero(m_aInputCount, sizeof(m_aInputCount));
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mem_zero(m_aInputState, sizeof(m_aInputState));
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m_InputCounter = 1;
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m_InputGrabbed = 0;
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m_LastRelease = 0;
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m_ReleaseDelta = -1;
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m_NumEvents = 0;
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m_MouseFocus = true;
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m_VideoRestartNeeded = 0;
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m_pClipboardText = NULL;
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m_IsEditingText = false;
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}
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void CInput::Init()
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{
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m_pGraphics = Kernel()->RequestInterface<IEngineGraphics>();
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MouseModeRelative();
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}
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void CInput::MouseRelative(float *x, float *y)
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{
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if(!m_MouseFocus || !m_InputGrabbed)
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return;
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#if defined(__ANDROID__) // No relative mouse on Android
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int nx = 0, ny = 0;
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SDL_GetMouseState(&nx, &ny);
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*x = nx;
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*y = ny;
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#else
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int nx = 0, ny = 0;
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float Sens = ((g_Config.m_ClDyncam && g_Config.m_ClDyncamMousesens) ? g_Config.m_ClDyncamMousesens : g_Config.m_InpMousesens) / 100.0f;
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SDL_GetRelativeMouseState(&nx,&ny);
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*x = nx*Sens;
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*y = ny*Sens;
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#endif
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}
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void CInput::MouseModeAbsolute()
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{
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m_InputGrabbed = 0;
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SDL_SetRelativeMouseMode(SDL_FALSE);
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Graphics()->SetWindowGrab(false);
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}
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void CInput::MouseModeRelative()
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{
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m_InputGrabbed = 1;
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SDL_SetRelativeMouseMode(SDL_TRUE);
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Graphics()->SetWindowGrab(true);
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}
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int CInput::MouseDoubleClick()
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{
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if(m_ReleaseDelta >= 0 && m_ReleaseDelta < (time_freq() / 3))
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{
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m_LastRelease = 0;
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m_ReleaseDelta = -1;
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return 1;
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}
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return 0;
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}
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const char* CInput::GetClipboardText()
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{
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if(m_pClipboardText)
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{
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SDL_free(m_pClipboardText);
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}
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m_pClipboardText = SDL_GetClipboardText();
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return m_pClipboardText;
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}
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void CInput::SetClipboardText(const char *Text)
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{
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SDL_SetClipboardText(Text);
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}
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void CInput::Clear()
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{
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mem_zero(m_aInputState, sizeof(m_aInputState));
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mem_zero(m_aInputCount, sizeof(m_aInputCount));
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m_NumEvents = 0;
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}
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bool CInput::KeyState(int Key) const
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{
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return m_aInputState[Key>=KEY_MOUSE_1 ? Key : SDL_GetScancodeFromKey(KeyToKeycode(Key))];
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}
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void CInput::NextFrame()
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{
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int i;
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const Uint8 *pState = SDL_GetKeyboardState(&i);
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if(i >= KEY_LAST)
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i = KEY_LAST-1;
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mem_copy(m_aInputState, pState, i);
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}
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bool CInput::GetIMEState()
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{
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return m_IsEditingText;
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}
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void CInput::SetIMEState(bool activate)
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{
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if (activate)
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SDL_StartTextInput();
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else
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{
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// force stop editing
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SDL_StopTextInput();
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m_IsEditingText = false;
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}
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}
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const char* CInput::GetIMECandidate()
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{
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if (str_length(m_pEditingText))
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return m_pEditingText;
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else
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return "";
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}
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int CInput::GetEditingCursor()
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{
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return m_EditingCursor;
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}
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int CInput::Update()
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{
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// keep the counter between 1..0xFFFF, 0 means not pressed
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m_InputCounter = (m_InputCounter%0xFFFF)+1;
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// these states must always be updated manually because they are not in the GetKeyState from SDL
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int i = SDL_GetMouseState(NULL, NULL);
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if(i&SDL_BUTTON(1)) m_aInputState[KEY_MOUSE_1] = 1; // 1 is left
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if(i&SDL_BUTTON(3)) m_aInputState[KEY_MOUSE_2] = 1; // 3 is right
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if(i&SDL_BUTTON(2)) m_aInputState[KEY_MOUSE_3] = 1; // 2 is middle
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if(i&SDL_BUTTON(4)) m_aInputState[KEY_MOUSE_4] = 1;
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if(i&SDL_BUTTON(5)) m_aInputState[KEY_MOUSE_5] = 1;
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if(i&SDL_BUTTON(6)) m_aInputState[KEY_MOUSE_6] = 1;
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if(i&SDL_BUTTON(7)) m_aInputState[KEY_MOUSE_7] = 1;
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if(i&SDL_BUTTON(8)) m_aInputState[KEY_MOUSE_8] = 1;
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if(i&SDL_BUTTON(9)) m_aInputState[KEY_MOUSE_9] = 1;
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{
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SDL_Event Event;
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bool IgnoreKeys = false;
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while(SDL_PollEvent(&Event))
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{
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int Key = -1;
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int Scancode = 0;
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int Action = IInput::FLAG_PRESS;
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switch (Event.type)
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{
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case SDL_TEXTEDITING:
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{
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if (str_length(Event.edit.text))
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{
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str_format(m_pEditingText, sizeof(m_pEditingText), Event.edit.text);
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m_EditingCursor = 0;
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for (int i = 0; i < Event.edit.start; i++)
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m_EditingCursor = str_utf8_forward(m_pEditingText, m_EditingCursor);
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m_IsEditingText = true;
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}
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else
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m_IsEditingText = false;
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break;
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}
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case SDL_TEXTINPUT:
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AddEvent(Event.text.text, 0, IInput::FLAG_TEXT);
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break;
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// handle keys
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case SDL_KEYDOWN:
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// See SDL_Keymod for possible modifiers:
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// NONE = 0
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// LSHIFT = 1
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// RSHIFT = 2
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// LCTRL = 64
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// RCTRL = 128
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// LALT = 256
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// RALT = 512
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// LGUI = 1024
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// RGUI = 2048
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// NUM = 4096
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// CAPS = 8192
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// MODE = 16384
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// Sum if you want to ignore multiple modifiers.
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if(!(Event.key.keysym.mod & g_Config.m_InpIgnoredModifiers))
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{
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Key = KeycodeToKey(Event.key.keysym.sym);
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Scancode = Event.key.keysym.scancode;
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}
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break;
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case SDL_KEYUP:
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Action = IInput::FLAG_RELEASE;
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Key = KeycodeToKey(Event.key.keysym.sym);
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Scancode = Event.key.keysym.scancode;
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break;
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// handle mouse buttons
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case SDL_MOUSEBUTTONUP:
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Action = IInput::FLAG_RELEASE;
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if(Event.button.button == 1) // ignore_convention
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{
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m_ReleaseDelta = time_get() - m_LastRelease;
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m_LastRelease = time_get();
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}
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// fall through
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case SDL_MOUSEBUTTONDOWN:
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if(Event.button.button == SDL_BUTTON_LEFT) Key = KEY_MOUSE_1; // ignore_convention
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if(Event.button.button == SDL_BUTTON_RIGHT) Key = KEY_MOUSE_2; // ignore_convention
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if(Event.button.button == SDL_BUTTON_MIDDLE) Key = KEY_MOUSE_3; // ignore_convention
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if(Event.button.button == SDL_BUTTON_X1) Key = KEY_MOUSE_4; // ignore_convention
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if(Event.button.button == SDL_BUTTON_X2) Key = KEY_MOUSE_5; // ignore_convention
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if(Event.button.button == 6) Key = KEY_MOUSE_6; // ignore_convention
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if(Event.button.button == 7) Key = KEY_MOUSE_7; // ignore_convention
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if(Event.button.button == 8) Key = KEY_MOUSE_8; // ignore_convention
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if(Event.button.button == 9) Key = KEY_MOUSE_9; // ignore_convention
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Scancode = Key;
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break;
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case SDL_MOUSEWHEEL:
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if(Event.wheel.y > 0) Key = KEY_MOUSE_WHEEL_UP; // ignore_convention
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if(Event.wheel.y < 0) Key = KEY_MOUSE_WHEEL_DOWN; // ignore_convention
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if(Event.wheel.x > 0) Key = KEY_MOUSE_WHEEL_LEFT; // ignore_convention
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if(Event.wheel.x < 0) Key = KEY_MOUSE_WHEEL_RIGHT; // ignore_convention
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Action |= IInput::FLAG_RELEASE;
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Scancode = Key;
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break;
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case SDL_WINDOWEVENT:
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// Ignore keys following a focus gain as they may be part of global
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// shortcuts
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switch (Event.window.event)
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{
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case SDL_WINDOWEVENT_RESIZED:
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#if defined(SDL_VIDEO_DRIVER_X11)
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Graphics()->Resize(Event.window.data1, Event.window.data2);
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#elif defined(__ANDROID__)
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m_VideoRestartNeeded = 1;
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#endif
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break;
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case SDL_WINDOWEVENT_FOCUS_GAINED:
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if(m_InputGrabbed)
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MouseModeRelative();
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m_MouseFocus = true;
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IgnoreKeys = true;
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break;
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case SDL_WINDOWEVENT_FOCUS_LOST:
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m_MouseFocus = false;
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IgnoreKeys = true;
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if(m_InputGrabbed)
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{
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MouseModeAbsolute();
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// Remember that we had relative mouse
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m_InputGrabbed = true;
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}
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break;
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#if defined(CONF_PLATFORM_MACOSX) // Todo: remove this when fixed in SDL
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case SDL_WINDOWEVENT_MAXIMIZED:
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MouseModeAbsolute();
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MouseModeRelative();
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break;
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#endif
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}
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break;
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// other messages
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case SDL_QUIT:
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return 1;
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}
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if(Key >= 0 && Key < g_MaxKeys && !IgnoreKeys && !m_IsEditingText)
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{
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if(Action&IInput::FLAG_PRESS)
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{
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m_aInputState[Scancode] = 1;
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m_aInputCount[Key] = m_InputCounter;
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}
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AddEvent(0, Key, Action);
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}
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}
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}
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return 0;
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}
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int CInput::VideoRestartNeeded()
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{
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if( m_VideoRestartNeeded )
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{
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m_VideoRestartNeeded = 0;
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return 1;
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}
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return 0;
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}
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IEngineInput *CreateEngineInput() { return new CInput; }
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