From 831e814ce9bdb84e86c06c4a52008f6bdaaa00d6 Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Fri, 16 Nov 2018 00:24:51 +0800
Subject: =?UTF-8?q?*=E5=90=88=E5=B9=B6master=E5=88=B0minimal=E5=88=86?=
 =?UTF-8?q?=E6=94=AF?=
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---
 src/lua/modules/event/je_lua_event.cpp | 130 +++++++++++++++++++++++++++++++++
 1 file changed, 130 insertions(+)
 create mode 100644 src/lua/modules/event/je_lua_event.cpp

(limited to 'src/lua/modules/event/je_lua_event.cpp')

diff --git a/src/lua/modules/event/je_lua_event.cpp b/src/lua/modules/event/je_lua_event.cpp
new file mode 100644
index 0000000..82ba385
--- /dev/null
+++ b/src/lua/modules/event/je_lua_event.cpp
@@ -0,0 +1,130 @@
+/**
+* Event module 
+*/
+#include "lua/common/je_lua_common.h"
+#include "lua/modules/luax.h"
+#include "libjin/jin.h"
+
+using namespace JinEngine;
+using namespace JinEngine::Input;
+
+namespace JinEngine
+{
+    namespace Lua
+    {
+
+        /**
+        * Load event poll, return a iterator(a table). 
+        */
+        LUA_IMPLEMENT int l_event_poll(lua_State *L)
+        {
+            /* table to store events */
+            luax_newtable(L);
+            static Event e; 
+            int i = 1;
+            poll:
+            while (pollEvent(&e))
+            {
+                /**
+                * TODO: 窗口大小改变时要更改transform
+                *
+                */
+                luax_newtable(L);
+                switch (e.type)
+                {
+                case EventType::QUIT: 
+                    luax_setfieldstring(L, "type", "Quit");
+                break;
+
+                case EventType::KEY_DOWN:
+                case EventType::KEY_UP:
+                    luax_setfieldstring(L, "type", e.type == EventType::KEY_DOWN ? "KeyDown" : "KeyUp");
+                    luax_setfieldstring(L, "key", getKeyName(e.key.keysym.sym));
+                break;
+            
+                case EventType::MOUSE_MOTION:
+                    luax_setfieldstring(L, "type", "MouseMotion");
+                    luax_setfieldnumber(L, "x", e.motion.x);
+                    luax_setfieldnumber(L, "y", e.motion.y);
+                break; 
+            
+                case EventType::MOUSE_BUTTON_DOWN:
+                case EventType::MOUSE_BUTTON_UP:
+                    luax_setfieldstring(L, "type", e.type == EventType::MOUSE_BUTTON_DOWN ? "MouseButtonDown" : "MouseButtonUp");
+                    luax_setfieldstring(L, "button", getButtonName(e.button.button));
+                    luax_setfieldnumber(L, "x", e.button.x);
+                    luax_setfieldnumber(L, "y", e.button.y);
+                break; 
+            
+                case EventType::MOUSE_WHEEL:
+                    luax_setfieldstring(L, "type", "Wheel");
+                    if(e.wheel.x == -1)
+                        luax_setfieldstring(L, "x", "Left");
+                    else if(e.wheel.x == 1) 
+                        luax_setfieldstring(L, "x", "Right");
+                    else 
+                        luax_setfieldstring(L, "x", "None");
+                    if (e.wheel.y == -1)
+                        luax_setfieldstring(L, "y", "Near");
+                    else if (e.wheel.y == 1)
+                        luax_setfieldstring(L, "y", "Far");
+                    else
+                        luax_setfieldstring(L, "y", "None");
+                break;
+            
+                case EventType::JOYBUTTONDOWN:
+                case EventType::JOYBUTTONUP:
+                    luax_setfieldstring(L, "type", e.type == EventType::JOYBUTTONDOWN ? "JoyButtonDown" : "JoyButtonUp");
+                    luax_setfieldinteger(L, "which", e.jbutton.which);
+                    luax_setfieldstring(L, "button", Input::getJoyButtonName(e.jbutton.button));
+                break;
+
+                case EventType::JOYAXISMOTION:
+                    luax_setfieldstring(L, "type", "JoyAxisMotion");
+                    luax_setfieldinteger(L, "which", e.jaxis.which);
+                    luax_setfieldfstring(L, "axis", Input::getJoyAxisName(e.jaxis.axis));
+                break;
+
+                case EventType::JOYBALLMOTION:
+                case EventType::JOYHATMOTION:
+
+                case EventType::JOYDEVICEADDED:
+                case EventType::JOYDEVICEREMOVED:
+                    luax_setfieldfstring(L, "type", e.type == EventType::JOYDEVICEADDED ? "JoyDeviceAdded" : "JoyDeviceRemoved");
+                    luax_setfieldinteger(L, "which", e.jdevice.which);
+                break;
+
+            //https://stackoverflow.com/questions/50022316/what-is-sdl-joystick-and-what-is-sdl-gamecontroller-what-are-the-relationships
+                case EventType::CONTROLLERBUTTONDOWN:
+                case EventType::CONTROLLERBUTTONUP:
+
+
+                case EventType::CONTROLLERAXISMOTION:
+
+                default:
+                    // Ignore oter events and pop up the event table.
+                    luax_pop(L, 1);
+                    goto poll;
+                break;
+                }
+                luax_rawseti(L, -2, i++);
+            }
+            return 1;
+        }
+
+        /**
+        * load event module
+        */
+        LUA_EXPORT int luaopen_event(lua_State* L)
+        {
+            luaL_Reg f[] = {
+                { "poll", l_event_poll },
+                { 0,      0            }
+            };
+            luax_newlib(L, f);
+
+            return 1; 
+        }
+
+    } // namespace Lua
+} // namespace JinEngine
\ No newline at end of file
-- 
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