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simple key handling pt.1

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a dinosaur
2024-03-12 21:08:02 +11:00
parent 4f1a3b0547
commit 1a8d125101
1 changed files with 10 additions and 5 deletions
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15
Lesson10.c
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@@ -17,12 +17,12 @@
SDL_Window* win = NULL; // Holds Our Window Handle SDL_Window* win = NULL; // Holds Our Window Handle
SDL_GLContext ctx = NULL; // Permanent Rendering Context SDL_GLContext ctx = NULL; // Permanent Rendering Context
bool keys[SDL_NUM_SCANCODES]; // Array Used For The Keyboard Routine
bool active = true; // Window Active Flag Set To TRUE By Default bool active = true; // Window Active Flag Set To TRUE By Default
bool fullscreen = true; // Fullscreen Flag Set To Fullscreen Mode By Default bool fullscreen = true; // Fullscreen Flag Set To Fullscreen Mode By Default
bool blend = false; // Blending ON/OFF bool blend = false; // Blending ON/OFF
bool bpressed = false; // B Pressed? bool bpressed = false; // B Pressed?
bool fpressed = false; // F Pressed? bool fpressed = false; // F Pressed?
bool f1pressed = false; // F1 Pressed
static const SDL_MessageBoxButtonData yesnobttns[2] = static const SDL_MessageBoxButtonData yesnobttns[2] =
{ {
@@ -436,13 +436,11 @@ void WndProc(SDL_Event *event)
case SDL_EVENT_KEY_DOWN: // Is A Key Being Held Down? case SDL_EVENT_KEY_DOWN: // Is A Key Being Held Down?
{ {
keys[event->key.keysym.scancode] = true; // If So, Mark It As TRUE
break; // Jump Back break; // Jump Back
} }
case SDL_EVENT_KEY_UP: // Has A Key Been Released? case SDL_EVENT_KEY_UP: // Has A Key Been Released?
{ {
keys[event->key.keysym.scancode] = false; // If So, Mark It As FALSE
break; // Jump Back break; // Jump Back
} }
@@ -492,6 +490,8 @@ int main(int argc, char *argv[])
WndProc(&event); // Deal with events WndProc(&event); // Deal with events
} }
const Uint8* keys = SDL_GetKeyboardState(NULL);
// Draw The Scene. Watch For ESC Key And Quit Messages From DrawGLScene() // Draw The Scene. Watch For ESC Key And Quit Messages From DrawGLScene()
if ((active && !DrawGLScene()) || keys[SDL_SCANCODE_ESCAPE]) // Active? Was There A Quit Received? if ((active && !DrawGLScene()) || keys[SDL_SCANCODE_ESCAPE]) // Active? Was There A Quit Received?
{ {
@@ -500,6 +500,7 @@ int main(int argc, char *argv[])
} }
SDL_GL_SwapWindow(win); // Swap Buffers (Double Buffering) SDL_GL_SwapWindow(win); // Swap Buffers (Double Buffering)
if (keys[SDL_SCANCODE_B] && !bpressed) if (keys[SDL_SCANCODE_B] && !bpressed)
{ {
bpressed = true; bpressed = true;
@@ -597,13 +598,17 @@ int main(int argc, char *argv[])
lookupdown += 1.0f; lookupdown += 1.0f;
} }
if (keys[SDL_SCANCODE_F1]) // Is F1 Being Pressed? if (keys[SDL_SCANCODE_F1] && !f1pressed) // Is F1 Being Pressed?
{ {
keys[SDL_SCANCODE_F1] = false; // If So Make Key FALSE f1pressed = true;
// Toggle Fullscreen / Windowed Mode // Toggle Fullscreen / Windowed Mode
fullscreen = !fullscreen; fullscreen = !fullscreen;
SDL_SetWindowFullscreen(win, fullscreen); SDL_SetWindowFullscreen(win, fullscreen);
} }
if (!keys[SDL_SCANCODE_F1])
{
f1pressed = false;
}
} }
// Shutdown // Shutdown