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Merge pull request #487 from BlueCrystalLabs/rgale_asmjsinput

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mouse and keyboard input for asmjs
This commit is contained in:
Branimir Karadžić 2015-08-20 14:55:57 -07:00
commit 90c9f880b8
1 changed files with 286 additions and 5 deletions
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291
examples/common/entry/entry_asmjs.cpp
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@ -8,6 +8,7 @@
#if BX_PLATFORM_EMSCRIPTEN
#include <emscripten.h>
#include <emscripten/html5.h>
extern "C" void entry_emscripten_yield()
{
@ -16,28 +17,307 @@ extern "C" void entry_emscripten_yield()
namespace entry
{
static WindowHandle s_defaultWindow = { 0 };
static uint8_t s_translateKey[256];
struct Context
{
Context()
: m_scrollf(0.0f)
, m_mx(0)
, m_my(0)
, m_scroll(0)
{
memset(s_translateKey, 0, sizeof(s_translateKey));
s_translateKey[27] = Key::Esc;
s_translateKey[uint8_t('\n')] =
s_translateKey[uint8_t('\r')] = Key::Return;
s_translateKey[uint8_t('\t')] = Key::Tab;
s_translateKey[127] = Key::Backspace;
s_translateKey[uint8_t(' ')] = Key::Space;
s_translateKey[38] = Key::Up;
s_translateKey[40] = Key::Down;
s_translateKey[37] = Key::Left;
s_translateKey[39] = Key::Right;
s_translateKey[uint8_t('+')] =
s_translateKey[uint8_t('=')] = Key::Plus;
s_translateKey[uint8_t('_')] =
s_translateKey[uint8_t('-')] = Key::Minus;
s_translateKey[uint8_t(':')] =
s_translateKey[uint8_t(';')] = Key::Semicolon;
s_translateKey[uint8_t('"')] =
s_translateKey[uint8_t('\'')] = Key::Quote;
s_translateKey[uint8_t('{')] =
s_translateKey[uint8_t('[')] = Key::LeftBracket;
s_translateKey[uint8_t('}')] =
s_translateKey[uint8_t(']')] = Key::RightBracket;
s_translateKey[uint8_t('<')] =
s_translateKey[uint8_t(',')] = Key::Comma;
s_translateKey[uint8_t('>')] =
s_translateKey[uint8_t('.')] = Key::Period;
s_translateKey[uint8_t('?')] =
s_translateKey[uint8_t('/')] = Key::Slash;
s_translateKey[uint8_t('|')] =
s_translateKey[uint8_t('\\')] = Key::Backslash;
s_translateKey[uint8_t('~')] =
s_translateKey[uint8_t('`')] = Key::Tilde;
s_translateKey[uint8_t('0')] = Key::Key0;
s_translateKey[uint8_t('1')] = Key::Key1;
s_translateKey[uint8_t('2')] = Key::Key2;
s_translateKey[uint8_t('3')] = Key::Key3;
s_translateKey[uint8_t('4')] = Key::Key4;
s_translateKey[uint8_t('5')] = Key::Key5;
s_translateKey[uint8_t('6')] = Key::Key6;
s_translateKey[uint8_t('7')] = Key::Key7;
s_translateKey[uint8_t('8')] = Key::Key8;
s_translateKey[uint8_t('9')] = Key::Key9;
for (char ch = 'a'; ch <= 'z'; ++ch)
{
s_translateKey[uint8_t(ch)] =
s_translateKey[uint8_t(ch - ' ')] = Key::KeyA + (ch - 'a');
}
}
int32_t run(int _argc, char** _argv)
{
emscripten_set_mousedown_callback("#canvas", this, true, mouseCb);
emscripten_set_mouseup_callback("#canvas", this, true, mouseCb);
emscripten_set_mousemove_callback("#canvas", this, true, mouseCb);
emscripten_set_wheel_callback("#canvas", this, true, wheelCb);
emscripten_set_keypress_callback(NULL, this, true, keyCb);
emscripten_set_keydown_callback(NULL, this, true, keyCb);
emscripten_set_keyup_callback(NULL, this, true, keyCb);
emscripten_set_resize_callback(0, this, true, resizeCb);
EmscriptenFullscreenStrategy fullscreenStrategy = {};
fullscreenStrategy.scaleMode = EMSCRIPTEN_FULLSCREEN_SCALE_DEFAULT;
fullscreenStrategy.canvasResolutionScaleMode = EMSCRIPTEN_FULLSCREEN_CANVAS_SCALE_NONE;
fullscreenStrategy.filteringMode = EMSCRIPTEN_FULLSCREEN_FILTERING_DEFAULT;
fullscreenStrategy.canvasResizedCallback = canvasResizeCb;
fullscreenStrategy.canvasResizedCallbackUserData = this;
emscripten_request_fullscreen_strategy("#canvas", false, &fullscreenStrategy);
int32_t result = main(_argc, _argv);
return result;
}
static EM_BOOL mouseCb(int eventType, const EmscriptenMouseEvent* mouseEvent, void* userData);
static EM_BOOL wheelCb(int eventType, const EmscriptenWheelEvent* wheelEvent, void* userData);
static EM_BOOL keyCb(int eventType, const EmscriptenKeyboardEvent* keyEvent, void* userData);
static EM_BOOL resizeCb(int eventType, const EmscriptenUiEvent* uiEvent, void* userData);
static EM_BOOL canvasResizeCb(int eventType, const void* reserved, void *userData);
EventQueue m_eventQueue;
float m_scrollf;
int32_t m_mx;
int32_t m_my;
int32_t m_scroll;
};
static Context s_ctx;
EM_BOOL Context::mouseCb(int eventType, const EmscriptenMouseEvent* event, void* userData)
{
BX_UNUSED(userData);
if (event)
{
switch (eventType)
{
case EMSCRIPTEN_EVENT_MOUSEMOVE:
{
s_ctx.m_mx = event->canvasX;
s_ctx.m_my = event->canvasY;
s_ctx.m_eventQueue.postMouseEvent(s_defaultWindow, s_ctx.m_mx, s_ctx.m_my, s_ctx.m_scroll);
return true;
}
case EMSCRIPTEN_EVENT_MOUSEDOWN:
case EMSCRIPTEN_EVENT_MOUSEUP:
case EMSCRIPTEN_EVENT_DBLCLICK:
{
s_ctx.m_mx = event->canvasX;
s_ctx.m_my = event->canvasY;
MouseButton::Enum mb = (event->button == 2) ? MouseButton::Right : ((event->button == 1) ? MouseButton::Middle : MouseButton::Left);
s_ctx.m_eventQueue.postMouseEvent(s_defaultWindow, s_ctx.m_mx, s_ctx.m_my, s_ctx.m_scroll, mb, (eventType != EMSCRIPTEN_EVENT_MOUSEUP));
return true;
}
}
}
return false;
}
EM_BOOL Context::wheelCb(int eventType, const EmscriptenWheelEvent* event, void* userData)
{
BX_UNUSED(userData);
if (event)
{
switch (eventType)
{
case EMSCRIPTEN_EVENT_WHEEL:
{
s_ctx.m_scrollf += event->deltaY;
s_ctx.m_scroll = (int32_t)s_ctx.m_scrollf;
s_ctx.m_eventQueue.postMouseEvent(s_defaultWindow, s_ctx.m_mx, s_ctx.m_my, s_ctx.m_scroll);
return true;
}
}
}
return false;
}
uint8_t translateModifiers(const EmscriptenKeyboardEvent* event)
{
uint8_t mask = 0;
if (event->shiftKey)
mask |= Modifier::LeftShift | Modifier::RightShift;
if (event->altKey)
mask |= Modifier::LeftAlt | Modifier::RightAlt;
if (event->ctrlKey)
mask |= Modifier::LeftCtrl | Modifier::RightCtrl;
if (event->metaKey)
mask |= Modifier::LeftMeta | Modifier::RightMeta;
return mask;
}
Key::Enum handleKeyEvent(const EmscriptenKeyboardEvent* event, uint8_t* specialKeys, uint8_t* _pressedChar)
{
*_pressedChar = (uint8_t)event->keyCode;
int keyCode = (int)event->keyCode;
*specialKeys = translateModifiers(event);
if (event->charCode == 0)
{
switch (keyCode)
{
case 112: return Key::F1;
case 113: return Key::F2;
case 114: return Key::F3;
case 115: return Key::F4;
case 116: return Key::F5;
case 117: return Key::F6;
case 118: return Key::F7;
case 119: return Key::F8;
case 120: return Key::F9;
case 121: return Key::F10;
case 122: return Key::F11;
case 123: return Key::F12;
case 37: return Key::Left;
case 39: return Key::Right;
case 38: return Key::Up;
case 40: return Key::Down;
}
}
// if this is a unhandled key just return None
if (keyCode < 256)
{
return (Key::Enum)s_translateKey[keyCode];
}
return Key::None;
}
EM_BOOL Context::keyCb(int eventType, const EmscriptenKeyboardEvent *event, void *userData)
{
BX_UNUSED(userData);
if (event)
{
uint8_t modifiers = 0;
uint8_t pressedChar[4];
Key::Enum key = handleKeyEvent(event, &modifiers, &pressedChar[0]);
// Returning true means that we take care of the key (instead of the default behavior)
if (key != Key::None)
{
switch (eventType)
{
case EMSCRIPTEN_EVENT_KEYPRESS:
case EMSCRIPTEN_EVENT_KEYDOWN:
{
if (key == Key::KeyQ && (modifiers & Modifier::RightMeta) )
{
s_ctx.m_eventQueue.postExitEvent();
}
else
{
enum { ShiftMask = Modifier::LeftShift|Modifier::RightShift };
s_ctx.m_eventQueue.postCharEvent(s_defaultWindow, 1, pressedChar);
s_ctx.m_eventQueue.postKeyEvent(s_defaultWindow, key, modifiers, true);
return true;
}
break;
}
case EMSCRIPTEN_EVENT_KEYUP:
{
s_ctx.m_eventQueue.postKeyEvent(s_defaultWindow, key, modifiers, false);
return true;
}
}
}
}
return false;
}
EM_BOOL Context::resizeCb(int eventType, const EmscriptenUiEvent* event, void *userData)
{
BX_UNUSED(eventType, event, userData);
return false;
}
EM_BOOL Context::canvasResizeCb(int eventType, const void* reserved, void *userData)
{
BX_UNUSED(eventType, reserved, userData);
return false;
}
const Event* poll()
{
entry_emscripten_yield();
return NULL;
return s_ctx.m_eventQueue.poll();
}
const Event* poll(WindowHandle _handle)
{
BX_UNUSED(_handle);
entry_emscripten_yield();
return NULL;
return s_ctx.m_eventQueue.poll(_handle);
}
void release(const Event* _event)
{
BX_UNUSED(_event);
s_ctx.m_eventQueue.release(_event);
}
WindowHandle createWindow(int32_t _x, int32_t _y, uint32_t _width, uint32_t _height, uint32_t _flags, const char* _title)
{
BX_UNUSED(_x, _y, _width, _height, _flags, _title);
WindowHandle handle = { UINT16_MAX };
return handle;
}
@ -79,7 +359,8 @@ namespace entry
int main(int _argc, char** _argv)
{
return entry::main(_argc, _argv);
using namespace entry;
return s_ctx.run(_argc, _argv);
}
#endif // BX_PLATFORM_EMSCRIPTEN