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Added simple key event processing.

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This commit is contained in:
Steven Fuller 2001-08-08 22:42:43 +00:00 • committed by Patryk Obara
parent a113617c02
commit 45cf2eb3a1
7 changed files with 81 additions and 49 deletions
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48
src/main.c
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@ -25,6 +25,10 @@ char LevelName[] = {"predbit6\0QuiteALongNameActually"}; /* the real way to load
extern int ScanDrawMode; /* to fix image loading */
extern SCREENDESCRIPTORBLOCK ScreenDescriptorBlock; /* this should be put in a header file */
extern unsigned char DebouncedKeyboardInput[MAX_NUMBER_OF_INPUT_KEYS];
extern unsigned char KeyboardInput[MAX_NUMBER_OF_INPUT_KEYS];
extern int DebouncedGotAnyKey;
extern unsigned char GotAnyKey;
PROCESSORTYPES ReadProcessorType()
{
@ -65,16 +69,60 @@ int InitialiseWindowsSystem()
return 0;
}
static int KeySymToKey(int keysym)
{
switch(keysym) {
case SDLK_ESCAPE:
return KEY_ESCAPE;
case SDLK_RETURN:
return KEY_CR;
case SDLK_LEFT:
return KEY_LEFT;
case SDLK_RIGHT:
return KEY_RIGHT;
case SDLK_UP:
return KEY_UP;
case SDLK_DOWN:
return KEY_DOWN;
default:
return -1;
}
}
static void handle_keypress(int keysym, int press)
{
int key = KeySymToKey(keysym);
if (key == -1)
return;
if (press && !KeyboardInput[key]) {
DebouncedKeyboardInput[key] = 1;
DebouncedGotAnyKey = 1;
}
GotAnyKey = 1;
KeyboardInput[key] = press;
}
void CheckForWindowsMessages()
{
SDL_Event event;
GotAnyKey = 0;
DebouncedGotAnyKey = 0;
memset(DebouncedKeyboardInput, 0, sizeof(DebouncedKeyboardInput));
if (SDL_PollEvent(&event)) {
do {
switch(event.type) {
case SDL_KEYDOWN:
handle_keypress(event.key.keysym.sym, 1);
break;
case SDL_KEYUP:
handle_keypress(event.key.keysym.sym, 0);
break;
case SDL_QUIT:
SDL_Quit();