From bd4eab495cd9150ff6480b205e7bb7a64f6291b7 Mon Sep 17 00:00:00 2001
From: Josh Holtrop <jholtrop+git@gmail.com>
Date: Mon, 19 Oct 2009 21:44:08 +0000
Subject: [PATCH] added mouse button down/up and mouse motion events

git-svn-id: svn://anubis/anaglym/trunk@111 99a6e188-d820-4881-8870-2d33a10e2619
---
 Engine.cc | 65 +++++++++++++++++++++++++++++++++++++++++++++++++++++--
 Engine.h  |  5 ++++-
 2 files changed, 67 insertions(+), 3 deletions(-)

diff --git a/Engine.cc b/Engine.cc
index 7c2fd4f..0cd2fca 100644
--- a/Engine.cc
+++ b/Engine.cc
@@ -321,13 +321,25 @@ void Engine::run()
             case SDL_KEYUP:
                 key_released_event(event.key.keysym.sym);
                 break;
+            case SDL_MOUSEBUTTONDOWN:
+                mousebutton_pressed_event(event.button.button,
+                        event.button.x, event.button.y);
+                break;
+            case SDL_MOUSEBUTTONUP:
+                mousebutton_released_event(event.button.button,
+                        event.button.x, event.button.y);
+                break;
+            case SDL_MOUSEMOTION:
+                mouse_motion_event(event.motion.x, event.motion.y,
+                        event.motion.xrel, event.motion.yrel);
+                break;
             case SDL_QUIT:
                 goto RET;
                 break;
             case SDL_USEREVENT:
                 if (event.user.code == 0)
                 {
-                    update();
+                    update_event();
                 }
                 break;
         }
@@ -336,7 +348,7 @@ RET:
     ;
 }
 
-void Engine::update()
+void Engine::update_event()
 {
     m_drawing = true;
     if (m_autoPhysics)
@@ -388,6 +400,55 @@ void Engine::key_released_event(int keysym)
     }
 }
 
+void Engine::mousebutton_pressed_event(int button, int x, int y)
+{
+    if (m_event_mousebutton_pressed_present)
+    {
+        lua_getfield(m_luaState, LUA_GLOBALSINDEX,
+                AG_EVENT_PREFIX "mousebutton_pressed");
+        lua_pushinteger(m_luaState, button);
+        lua_pushnumber(m_luaState, x);
+        lua_pushnumber(m_luaState, y);
+        /* call the mouse button pressed event function
+         * This pops the function ref and arguments from the stack */
+        int s = lua_pcall(m_luaState, 3, LUA_MULTRET, 0);
+        reportErrors(s);
+    }
+}
+
+void Engine::mousebutton_released_event(int button, int x, int y)
+{
+    if (m_event_mousebutton_released_present)
+    {
+        lua_getfield(m_luaState, LUA_GLOBALSINDEX,
+                AG_EVENT_PREFIX "mousebutton_released");
+        lua_pushinteger(m_luaState, button);
+        lua_pushnumber(m_luaState, x);
+        lua_pushnumber(m_luaState, y);
+        /* call the mouse button released event function
+         * This pops the function ref and arguments from the stack */
+        int s = lua_pcall(m_luaState, 3, LUA_MULTRET, 0);
+        reportErrors(s);
+    }
+}
+
+void Engine::mouse_motion_event(int x, int y, int xrel, int yrel)
+{
+    if (m_event_mouse_motion_present)
+    {
+        lua_getfield(m_luaState, LUA_GLOBALSINDEX,
+                AG_EVENT_PREFIX "mouse_motion");
+        lua_pushnumber(m_luaState, x);
+        lua_pushnumber(m_luaState, y);
+        lua_pushnumber(m_luaState, xrel);
+        lua_pushnumber(m_luaState, yrel);
+        /* call the mouse motion event function
+         * This pops the function ref and arguments from the stack */
+        int s = lua_pcall(m_luaState, 4, LUA_MULTRET, 0);
+        reportErrors(s);
+    }
+}
+
 void Engine::checkForFunctionFull(const std::string & lua_fn_name,
         const std::string & event_name, bool & presentFlag)
 {
diff --git a/Engine.h b/Engine.h
index a25a45b..4138041 100644
--- a/Engine.h
+++ b/Engine.h
@@ -116,9 +116,12 @@ class Engine
         Uint32 updateCallback(Uint32 interval);
         void registerLibraries();
         bool fileExists(const std::string & path);
-        void update();
+        void update_event();
         void key_pressed_event(int keysym);
         void key_released_event(int keysym);
+        void mousebutton_pressed_event(int button, int x, int y);
+        void mousebutton_released_event(int button, int x, int y);
+        void mouse_motion_event(int x, int y, int xrel, int yrel);
         Object * createObject(bool is_static, GLuint display_list,
                 float scale = 1.0f)
         {