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lugaru/Source/Utils/Input.cpp

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+/*
+Copyright (C) 2003, 2010 - Wolfire Games
+Copyright (C) 2010-2017 - Lugaru contributors (see AUTHORS file)
+
+This file is part of Lugaru.
+
+Lugaru is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+Lugaru is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Lugaru.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "Utils/Input.hpp"
+
+bool keyDown[SDL_NUM_SCANCODES + 6];
+bool keyPressed[SDL_NUM_SCANCODES + 6];
+
+void Input::Tick()
+{
+    SDL_PumpEvents();
+    int numkeys;
+    const Uint8* keyState = SDL_GetKeyboardState(&numkeys);
+    for (int i = 0; i < numkeys; i++) {
+        keyPressed[i] = !keyDown[i] && keyState[i];
+        keyDown[i] = keyState[i];
+    }
+    Uint8 mb = SDL_GetMouseState(NULL, NULL);
+    for (int i = 1; i < 6; i++) {
+        keyPressed[SDL_NUM_SCANCODES + i] = !keyDown[SDL_NUM_SCANCODES + i] && (mb & SDL_BUTTON(i));
+        keyDown[SDL_NUM_SCANCODES + i] = (mb & SDL_BUTTON(i));
+    }
+}
+
+bool Input::isKeyDown(int k)
+{
+    if (k >= SDL_NUM_SCANCODES + 6) {
+        return false;
+    }
+    return keyDown[k];
+}
+
+bool Input::isKeyPressed(int k)
+{
+    if (k >= SDL_NUM_SCANCODES + 6) {
+        return false;
+    }
+    return keyPressed[k];
+}
+
+const char* Input::keyToChar(unsigned short i)
+{
+    if (i < SDL_NUM_SCANCODES) {
+        return SDL_GetKeyName(SDL_GetKeyFromScancode(SDL_Scancode(i)));
+    } else if (i == MOUSEBUTTON_LEFT) {
+        return "mouse left button";
+    } else if (i == MOUSEBUTTON_RIGHT) {
+        return "mouse right button";
+    } else if (i == MOUSEBUTTON_MIDDLE) {
+        return "mouse middle button";
+    } else if (i == MOUSEBUTTON_X1) {
+        return "mouse button 4";
+    } else if (i == MOUSEBUTTON_X2) {
+        return "mouse button 5";
+    } else {
+        return "unknown";
+    }
+}
+
+bool Input::MouseClicked()
+{
+    return isKeyPressed(MOUSEBUTTON_LEFT);
+}