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VVVVVV/desktop_version/src/KeyPoll.cpp

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Hello WWWWWWorld!
2020-01-01 21:29:24 +01:00
#include "KeyPoll.h"
#include <stdio.h>
#include <string.h>
Add support for Unicode rendering (#47) This uses utfcpp combined with a custom font, in the form of a PNG and text file. By default, the game acts exactly as it did before; custom fonts can be provided by third parties.
2020-01-31 19:25:37 +01:00
#include <utf8/unchecked.h>
Hello WWWWWWorld!
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void KeyPoll::setSensitivity(int _value)
{
switch (_value)
{
case 0:
sensitivity = 28000;
break;
case 1:
sensitivity = 16000;
break;
case 2:
sensitivity = 8000;
break;
case 3:
sensitivity = 4000;
break;
case 4:
sensitivity = 2000;
break;
}
}
KeyPoll::KeyPoll()
{
xVel = 0;
yVel = 0;
setSensitivity(2);
quitProgram = 0;
textentrymode=true;
keybuffer="";
leftbutton=0; rightbutton=0; middlebutton=0;
mx=0; my=0;
resetWindow = 0;
toggleFullscreen = false;
pressedbackspace=false;
useFullscreenSpaces = false;
if (strcmp(SDL_GetPlatform(), "Mac OS X") == 0)
{
useFullscreenSpaces = true;
const char *hint = SDL_GetHint(SDL_HINT_VIDEO_MAC_FULLSCREEN_SPACES);
if (hint != NULL)
{
useFullscreenSpaces = (strcmp(hint, "1") == 0);
}
}
Fix frame-ordering backspacing empty line bug in script editor There is a long-standing bug with the script editor where if you delete the last character of a line, it IMMEDIATELY deletes the line you're on, and then moves your cursor back to the previous line. This is annoying, to say the least. The reason for this is that, in the sequence of events that happens in one frame (known as frame ordering), the code that backspaces one character from the line when you press Backspace is ran BEFORE the code to remove an empty line if you backspace it is ran. The former is located in key.Poll(), and the latter is located in editorinput(). Thus, when you press Backspace, the game first runs key.Poll(), sees that you've pressed Backspace, and dutifully removes the last character from a line. The line is now empty. Then, when the game gets around to the "Are you pressing Backspace on an empty line?" check in editorinput(), it thinks that you're pressing Backspace on an empty line, and then does the usual line-removing stuff. And actually, when it does the check in editorinput(), it ACTUALLY asks "Are you pressing Backspace on THIS frame and was the line empty LAST frame?" because it's checking against its own copy of the input buffer, before copying the input buffer to its own local copy. So the problem only happens if you press and hold Backspace for more than 1 frame. It's a small consolation prize for this annoyance, getting to tap-tap-tap Backspace in the hopes that you only press it for 1 frame, while in the middle of something more important to do like, oh I don't know, writing a script. So there are two potential solutions here: (1) Just change the frame ordering around. This is risky to say the least, because I'm not sure what behavior depends on exactly which frame order. It's not like it's key.Poll() and then IMMEDIATELY afterwards editorinput() is run, it's more like key.Poll(), some things that obviously depend on key.Poll() running before them, and THEN editorinput(). Also, editorinput() is only one possible thing that could be ran afterwards, on the next frame we could be running something else entirely instead. (2) Add a kludge variable to signal when the line is ALREADY empty so the game doesn't re-check the already-empty line and conclude that you're already immediately backspacing an empty line. I went with (2) for this commit, and I've added the kludge variable key.linealreadyemptykludge. However, that by itself isn't enough to fix it. It only adds about a frame or so of delay before the game goes right back to saying "Oh, you're ALREADY somehow pressing backspace again? I'll just delete this line real quick" and the behavior is basically the same as before, except now you have to hit Backspace for TWO frames or less instead of one in order to not have it happen. What we need is to have a delay set as well, when the game deletes the last line of a char. So I set ed.keydelay to 6 as well if editorinput() sses that key.linealreadyemptykludge is on.
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linealreadyemptykludge = false;
Hello WWWWWWorld!
2020-01-01 21:29:24 +01:00
}
void KeyPoll::enabletextentry()
{
keybuffer="";
textentrymode = true;
SDL_StartTextInput();
}
void KeyPoll::disabletextentry()
{
textentrymode = false;
SDL_StopTextInput();
}
Remove passing around pointer to gameScreen from KeyPoll::Poll() Makes for cleaner code this way.
2020-06-13 20:44:22 +02:00
void KeyPoll::Poll()
Hello WWWWWWorld!
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{
SDL_Event evt;
while (SDL_PollEvent(&evt))
{
/* Keyboard Input */
if (evt.type == SDL_KEYDOWN)
{
keymap[evt.key.keysym.sym] = true;
Make the toggle fullscreen conditional more readable Each check has been put in its own variable, so the final conditional is more readable, and the ifdef is no longer right smack in the middle of an if-statement. Also the control flow has been changed (the "else" has been removed from the shortcut-checking conditional) so I could put the variables closer to the actual conditional itself. I don't think it affects anything, though.
2020-03-13 00:29:03 +01:00
Hello WWWWWWorld!
2020-01-01 21:29:24 +01:00
if (evt.key.keysym.sym == SDLK_BACKSPACE)
{
pressedbackspace = true;
}
Make the toggle fullscreen conditional more readable Each check has been put in its own variable, so the final conditional is more readable, and the ifdef is no longer right smack in the middle of an if-statement. Also the control flow has been changed (the "else" has been removed from the shortcut-checking conditional) so I could put the variables closer to the actual conditional itself. I don't think it affects anything, though.
2020-03-13 00:29:03 +01:00
Allow using F11 and (on macOS) RCmd+Enter/F to toggle fullscreen This patch allows the use of pressing F11 to toggle fullscreen, as well as allowing the use of Right Command when using the Command+Enter/F shortcut on macOS. Apparently Alt+Enter isn't the only shortcut to toggle fullscreen, Alt+F also works, which I didn't know before. I'm adding F11 as a shortcut because it's a far more natural shortcut to toggle fullscreen than this Alt+Enter or Alt+F business, which seems to be a relic mimicking some other games and some Microsoft stuff? I'm also adding RCommand+Enter/F because I see no reason not to. If you can use RAlt on non-macOS, why can't you use RCommand on macOS, too? I also cleaned up the formatting relating to the shortcut code, and made sure the closing parenthesis was outside the ifdef so my text editor wouldn't highlight the parenthesis inside the non-macOS ifdef-branch as a dangling closing parenthesis, because it assumes the one in the branch above is the actual closing parenthesis and doesn't parse macros.
2020-03-13 00:00:18 +01:00
#ifdef __APPLE__ /* OSX prefers the command keys over the alt keys. -flibit */
Make the toggle fullscreen conditional more readable Each check has been put in its own variable, so the final conditional is more readable, and the ifdef is no longer right smack in the middle of an if-statement. Also the control flow has been changed (the "else" has been removed from the shortcut-checking conditional) so I could put the variables closer to the actual conditional itself. I don't think it affects anything, though.
2020-03-13 00:29:03 +01:00
bool altpressed = keymap[SDLK_LGUI] || keymap[SDLK_RGUI];
Hello WWWWWWorld!
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#else
Make the toggle fullscreen conditional more readable Each check has been put in its own variable, so the final conditional is more readable, and the ifdef is no longer right smack in the middle of an if-statement. Also the control flow has been changed (the "else" has been removed from the shortcut-checking conditional) so I could put the variables closer to the actual conditional itself. I don't think it affects anything, though.
2020-03-13 00:29:03 +01:00
bool altpressed = keymap[SDLK_LALT] || keymap[SDLK_RALT];
Hello WWWWWWorld!
2020-01-01 21:29:24 +01:00
#endif
Make the toggle fullscreen conditional more readable Each check has been put in its own variable, so the final conditional is more readable, and the ifdef is no longer right smack in the middle of an if-statement. Also the control flow has been changed (the "else" has been removed from the shortcut-checking conditional) so I could put the variables closer to the actual conditional itself. I don't think it affects anything, though.
2020-03-13 00:29:03 +01:00
bool returnpressed = evt.key.keysym.sym == SDLK_RETURN;
bool fpressed = evt.key.keysym.sym == SDLK_f;
bool f11pressed = evt.key.keysym.sym == SDLK_F11;
if ((altpressed && (returnpressed || fpressed)) || f11pressed)
Hello WWWWWWorld!
2020-01-01 21:29:24 +01:00
{
toggleFullscreen = true;
}
if (textentrymode)
{
Add support for Unicode rendering (#47) This uses utfcpp combined with a custom font, in the form of a PNG and text file. By default, the game acts exactly as it did before; custom fonts can be provided by third parties.
2020-01-31 19:25:37 +01:00
if (evt.key.keysym.sym == SDLK_BACKSPACE && !keybuffer.empty())
Hello WWWWWWorld!
2020-01-01 21:29:24 +01:00
{
Add support for Unicode rendering (#47) This uses utfcpp combined with a custom font, in the form of a PNG and text file. By default, the game acts exactly as it did before; custom fonts can be provided by third parties.
2020-01-31 19:25:37 +01:00
std::string::iterator iter = keybuffer.end();
utf8::unchecked::prior(iter);
keybuffer = keybuffer.substr(0, iter - keybuffer.begin());
if (keybuffer.empty())
Fix frame-ordering backspacing empty line bug in script editor There is a long-standing bug with the script editor where if you delete the last character of a line, it IMMEDIATELY deletes the line you're on, and then moves your cursor back to the previous line. This is annoying, to say the least. The reason for this is that, in the sequence of events that happens in one frame (known as frame ordering), the code that backspaces one character from the line when you press Backspace is ran BEFORE the code to remove an empty line if you backspace it is ran. The former is located in key.Poll(), and the latter is located in editorinput(). Thus, when you press Backspace, the game first runs key.Poll(), sees that you've pressed Backspace, and dutifully removes the last character from a line. The line is now empty. Then, when the game gets around to the "Are you pressing Backspace on an empty line?" check in editorinput(), it thinks that you're pressing Backspace on an empty line, and then does the usual line-removing stuff. And actually, when it does the check in editorinput(), it ACTUALLY asks "Are you pressing Backspace on THIS frame and was the line empty LAST frame?" because it's checking against its own copy of the input buffer, before copying the input buffer to its own local copy. So the problem only happens if you press and hold Backspace for more than 1 frame. It's a small consolation prize for this annoyance, getting to tap-tap-tap Backspace in the hopes that you only press it for 1 frame, while in the middle of something more important to do like, oh I don't know, writing a script. So there are two potential solutions here: (1) Just change the frame ordering around. This is risky to say the least, because I'm not sure what behavior depends on exactly which frame order. It's not like it's key.Poll() and then IMMEDIATELY afterwards editorinput() is run, it's more like key.Poll(), some things that obviously depend on key.Poll() running before them, and THEN editorinput(). Also, editorinput() is only one possible thing that could be ran afterwards, on the next frame we could be running something else entirely instead. (2) Add a kludge variable to signal when the line is ALREADY empty so the game doesn't re-check the already-empty line and conclude that you're already immediately backspacing an empty line. I went with (2) for this commit, and I've added the kludge variable key.linealreadyemptykludge. However, that by itself isn't enough to fix it. It only adds about a frame or so of delay before the game goes right back to saying "Oh, you're ALREADY somehow pressing backspace again? I'll just delete this line real quick" and the behavior is basically the same as before, except now you have to hit Backspace for TWO frames or less instead of one in order to not have it happen. What we need is to have a delay set as well, when the game deletes the last line of a char. So I set ed.keydelay to 6 as well if editorinput() sses that key.linealreadyemptykludge is on.
2020-01-19 03:17:46 +01:00
{
linealreadyemptykludge = true;
}
Hello WWWWWWorld!
2020-01-01 21:29:24 +01:00
}
else if ( evt.key.keysym.sym == SDLK_v &&
keymap[SDLK_LCTRL] )
{
keybuffer += SDL_GetClipboardText();
}
}
}
else if (evt.type == SDL_KEYUP)
{
keymap[evt.key.keysym.sym] = false;
if (evt.key.keysym.sym == SDLK_BACKSPACE)
{
pressedbackspace = false;
}
}
else if (evt.type == SDL_TEXTINPUT)
{
keybuffer += evt.text.text;
}
/* Mouse Input */
else if (evt.type == SDL_MOUSEMOTION)
{
mx = evt.motion.x;
my = evt.motion.y;
}
else if (evt.type == SDL_MOUSEBUTTONDOWN)
{
if (evt.button.button == SDL_BUTTON_LEFT)
{
mx = evt.button.x;
my = evt.button.y;
leftbutton = 1;
}
else if (evt.button.button == SDL_BUTTON_RIGHT)
{
mx = evt.button.x;
my = evt.button.y;
rightbutton = 1;
}
else if (evt.button.button == SDL_BUTTON_MIDDLE)
{
mx = evt.button.x;
my = evt.button.y;
middlebutton = 1;
}
}
else if (evt.type == SDL_MOUSEBUTTONUP)
{
if (evt.button.button == SDL_BUTTON_LEFT)
{
mx = evt.button.x;
my = evt.button.y;
leftbutton=0;
}
else if (evt.button.button == SDL_BUTTON_RIGHT)
{
mx = evt.button.x;
my = evt.button.y;
rightbutton=0;
}
else if (evt.button.button == SDL_BUTTON_MIDDLE)
{
mx = evt.button.x;
my = evt.button.y;
middlebutton=0;
}
}
/* Controller Input */
else if (evt.type == SDL_CONTROLLERBUTTONDOWN)
{
buttonmap[(SDL_GameControllerButton) evt.cbutton.button] = true;
}
else if (evt.type == SDL_CONTROLLERBUTTONUP)
{
buttonmap[(SDL_GameControllerButton) evt.cbutton.button] = false;
}
else if (evt.type == SDL_CONTROLLERAXISMOTION)
{
if (evt.caxis.axis == SDL_CONTROLLER_AXIS_LEFTX)
{
if ( evt.caxis.value > -sensitivity &&
evt.caxis.value < sensitivity )
{
xVel = 0;
}
else
{
xVel = (evt.caxis.value > 0) ? 1 : -1;
}
}
if (evt.caxis.axis == SDL_CONTROLLER_AXIS_LEFTY)
{
if ( evt.caxis.value > -sensitivity &&
evt.caxis.value < sensitivity )
{
yVel = 0;
}
else
{
yVel = (evt.caxis.value > 0) ? 1 : -1;
}
}
}
else if (evt.type == SDL_CONTROLLERDEVICEADDED)
{
SDL_GameController *toOpen = SDL_GameControllerOpen(evt.cdevice.which);
printf(
"Opened SDL_GameController ID #%i, %s\n",
evt.cdevice.which,
SDL_GameControllerName(toOpen)
);
controllers[SDL_JoystickInstanceID(SDL_GameControllerGetJoystick(toOpen))] = toOpen;
}
else if (evt.type == SDL_CONTROLLERDEVICEREMOVED)
{
SDL_GameController *toClose = controllers[evt.cdevice.which];
controllers.erase(evt.cdevice.which);
printf("Closing %s\n", SDL_GameControllerName(toClose));
SDL_GameControllerClose(toClose);
}
/* Window Events */
else if (evt.type == SDL_WINDOWEVENT)
{
/* Window Resize */
if (evt.window.event == SDL_WINDOWEVENT_RESIZED)
{
resetWindow = true;
}
/* Window Focus */
else if (evt.window.event == SDL_WINDOWEVENT_FOCUS_GAINED)
{
isActive = true;
if (!useFullscreenSpaces)
{
Fix fullscreen focus behavior
2020-06-13 16:35:05 +02:00
if (wasFullscreen)
{
Remove passing around pointer to gameScreen from KeyPoll::Poll() Makes for cleaner code this way.
2020-06-13 20:44:22 +02:00
gameScreen.isWindowed = false;
Fix fullscreen focus behavior
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SDL_SetWindowFullscreen(
SDL_GetWindowFromID(evt.window.windowID),
SDL_WINDOW_FULLSCREEN_DESKTOP
);
}
Hello WWWWWWorld!
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}
SDL_DisableScreenSaver();
}
else if (evt.window.event == SDL_WINDOWEVENT_FOCUS_LOST)
{
isActive = false;
if (!useFullscreenSpaces)
{
Remove passing around pointer to gameScreen from KeyPoll::Poll() Makes for cleaner code this way.
2020-06-13 20:44:22 +02:00
wasFullscreen = !gameScreen.isWindowed;
gameScreen.isWindowed = true;
Hello WWWWWWorld!
2020-01-01 21:29:24 +01:00
SDL_SetWindowFullscreen(
SDL_GetWindowFromID(evt.window.windowID),
Fix fullscreen focus behavior
2020-06-13 16:35:05 +02:00
0
Hello WWWWWWorld!
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);
}
SDL_EnableScreenSaver();
}
/* Mouse Focus */
else if (evt.window.event == SDL_WINDOWEVENT_ENTER)
{
SDL_DisableScreenSaver();
}
else if (evt.window.event == SDL_WINDOWEVENT_LEAVE)
{
SDL_EnableScreenSaver();
}
}
/* Quit Event */
else if (evt.type == SDL_QUIT)
{
quitProgram = true;
}
}
}
bool KeyPoll::isDown(SDL_Keycode key)
{
return keymap[key];
}
bool KeyPoll::isUp(SDL_Keycode key)
{
return !keymap[key];
}
bool KeyPoll::isDown(std::vector<SDL_GameControllerButton> buttons)
{
for (size_t i = 0; i < buttons.size(); i += 1)
{
if (buttonmap[buttons[i]])
{
return true;
}
}
return false;
}
bool KeyPoll::isDown(SDL_GameControllerButton button)
{
return buttonmap[button];
}
bool KeyPoll::controllerButtonDown()
{
for (
SDL_GameControllerButton button = SDL_CONTROLLER_BUTTON_A;
button < SDL_CONTROLLER_BUTTON_DPAD_UP;
button = (SDL_GameControllerButton) (button + 1)
) {
if (isDown(button))
{
return true;
}
}
return false;
}
bool KeyPoll::controllerWantsLeft(bool includeVert)
{
return ( buttonmap[SDL_CONTROLLER_BUTTON_DPAD_LEFT] ||
xVel < 0 ||
( includeVert &&
( buttonmap[SDL_CONTROLLER_BUTTON_DPAD_UP] ||
yVel < 0 ) ) );
}
bool KeyPoll::controllerWantsRight(bool includeVert)
{
return ( buttonmap[SDL_CONTROLLER_BUTTON_DPAD_RIGHT] ||
xVel > 0 ||
( includeVert &&
( buttonmap[SDL_CONTROLLER_BUTTON_DPAD_DOWN] ||
yVel > 0 ) ) );
}
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