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simple key handling pt.2

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a dinosaur
2024-03-12 21:26:17 +11:00
parent 1a8d125101
commit 05d2ac2d2a
1 changed files with 49 additions and 66 deletions
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115
Lesson10.c
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@@ -20,9 +20,6 @@ SDL_GLContext ctx = NULL; // Permanent Rendering Context
bool active = true; // Window Active Flag Set To TRUE By Default
bool fullscreen = true; // Fullscreen Flag Set To Fullscreen Mode By Default
bool blend = false; // Blending ON/OFF
bool bpressed = false; // B Pressed?
bool fpressed = false; // F Pressed?
bool f1pressed = false; // F1 Pressed
static const SDL_MessageBoxButtonData yesnobttns[2] =
{
@@ -426,29 +423,59 @@ bool done = false; // Bool Variable To Exit Loop
void WndProc(SDL_Event *event)
{
switch (event->type) // Check For Windows Messages
switch (event->type)
{
case SDL_EVENT_QUIT: // Have We Received A Quit Message?
case SDL_EVENT_QUIT: // Have we received a quit event?
done = true; // If so done=TRUE
break;
case SDL_EVENT_KEY_DOWN:
if (event->key.keysym.scancode == SDL_SCANCODE_ESCAPE) // Quit on Escape
{
done = true; // If So done=TRUE
done = true;
break;
}
case SDL_EVENT_KEY_DOWN: // Is A Key Being Held Down?
if (!event->key.repeat) // Was a key just pressed?
{
break; // Jump Back
}
switch (event->key.keysym.scancode)
{
case SDL_SCANCODE_B: // B = Toggle blending
blend = !blend;
if (!blend)
{
glDisable(GL_BLEND);
glEnable(GL_DEPTH_TEST);
}
else
{
glEnable(GL_BLEND);
glDisable(GL_DEPTH_TEST);
}
break;
case SDL_EVENT_KEY_UP: // Has A Key Been Released?
{
break; // Jump Back
}
case SDL_SCANCODE_F: // F = Cycle texture filtering
filter += 1;
if (filter > 2)
{
filter = 0;
}
break;
case SDL_EVENT_WINDOW_PIXEL_SIZE_CHANGED: // Resize The OpenGL Window
{
ReSizeGLScene(event->window.data1, event->window.data2); // data1=Width, data2=Height
break; // Jump Back
case SDL_SCANCODE_F1:
// Toggle Fullscreen / Windowed Mode
fullscreen = !fullscreen;
SDL_SetWindowFullscreen(win, fullscreen);
break;
default: break;
}
}
break;
case SDL_EVENT_WINDOW_PIXEL_SIZE_CHANGED: // Resize The OpenGL Window
ReSizeGLScene(event->window.data1, event->window.data2); // data1=Width, data2=Height
break; // Jump Back
default: break;
}
}
@@ -490,10 +517,8 @@ int main(int argc, char *argv[])
WndProc(&event); // Deal with events
}
const Uint8* keys = SDL_GetKeyboardState(NULL);
// 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?
// Draw The Scene. Watch Quit Messages From DrawGLScene()
if (active && !DrawGLScene()) // Active?
{
done = true; // ESC or DrawGLScene Signalled A Quit
break;
@@ -501,39 +526,9 @@ int main(int argc, char *argv[])
SDL_GL_SwapWindow(win); // Swap Buffers (Double Buffering)
if (keys[SDL_SCANCODE_B] && !bpressed)
{
bpressed = true;
blend = !blend;
if (!blend)
{
glDisable(GL_BLEND);
glEnable(GL_DEPTH_TEST);
}
else
{
glEnable(GL_BLEND);
glDisable(GL_DEPTH_TEST);
}
}
if (!keys[SDL_SCANCODE_B])
{
bpressed = false;
}
if (keys[SDL_SCANCODE_F] && !fpressed)
{
fpressed = true;
filter += 1;
if (filter > 2)
{
filter = 0;
}
}
if (!keys[SDL_SCANCODE_F])
{
fpressed = false;
}
// Handle keyboard input
const Uint8* keys = SDL_GetKeyboardState(NULL);
if (keys[SDL_SCANCODE_PAGEUP])
{
@@ -597,18 +592,6 @@ int main(int argc, char *argv[])
{
lookupdown += 1.0f;
}
if (keys[SDL_SCANCODE_F1] && !f1pressed) // Is F1 Being Pressed?
{
f1pressed = true;
// Toggle Fullscreen / Windowed Mode
fullscreen = !fullscreen;
SDL_SetWindowFullscreen(win, fullscreen);
}
if (!keys[SDL_SCANCODE_F1])
{
f1pressed = false;
}
}
// Shutdown