From 10c9d92cd2581448d76548efb20957a7a1c24478 Mon Sep 17 00:00:00 2001
From: Piotr Dziwinski <piotrdz@gmail.com>
Date: Wed, 19 Sep 2012 21:23:42 +0200
Subject: Mouse wheel events, motion vectors

- added mouse wheel events
- added motion vectors to CRobotMain
- other minor changes in event.h
---
 src/graphics/engine/camera.cpp | 34 ++++++++++++++++------------------
 src/graphics/engine/camera.h   |  2 +-
 2 files changed, 17 insertions(+), 19 deletions(-)

(limited to 'src/graphics/engine')

diff --git a/src/graphics/engine/camera.cpp b/src/graphics/engine/camera.cpp
index 80757c4..cd7e307 100644
--- a/src/graphics/engine/camera.cpp
+++ b/src/graphics/engine/camera.cpp
@@ -1002,11 +1002,9 @@ bool Gfx::CCamera::EventProcess(const Event &event)
             EventMouseMove(event);
             break;
 
-        // TODO: mouse wheel event
-        /*case EVENT_KEY_DOWN:
-            if ( event.param == VK_WHEELUP   )  EventMouseWheel(+1);
-            if ( event.param == VK_WHEELDOWN )  EventMouseWheel(-1);
-            break;*/
+        case EVENT_MOUSE_WHEEL:
+            EventMouseWheel(event.mouseWheel.dir);
+            break;
 
         default:
             break;
@@ -1020,17 +1018,17 @@ bool Gfx::CCamera::EventMouseMove(const Event &event)
     return true;
 }
 
-void Gfx::CCamera::EventMouseWheel(int dir)
+void Gfx::CCamera::EventMouseWheel(WheelDirection dir)
 {
     if (m_type == Gfx::CAM_TYPE_BACK)
     {
-        if (dir > 0)
+        if (dir == WHEEL_UP)
         {
             m_backDist -= 8.0f;
             if (m_backDist < m_backMin)
                 m_backDist = m_backMin;
         }
-        if (dir < 0)
+        else if (dir == WHEEL_DOWN)
         {
             m_backDist += 8.0f;
             if (m_backDist > 200.0f)
@@ -1041,13 +1039,13 @@ void Gfx::CCamera::EventMouseWheel(int dir)
     if ( m_type == Gfx::CAM_TYPE_FIX   ||
          m_type == Gfx::CAM_TYPE_PLANE )
     {
-        if (dir > 0)
+        if (dir == WHEEL_UP)
         {
             m_fixDist -= 8.0f;
             if (m_fixDist < 10.0f)
                 m_fixDist = 10.0f;
         }
-        if (dir < 0)
+        else if (dir == WHEEL_DOWN)
         {
             m_fixDist += 8.0f;
             if (m_fixDist > 200.0f)
@@ -1057,13 +1055,13 @@ void Gfx::CCamera::EventMouseWheel(int dir)
 
     if ( m_type == Gfx::CAM_TYPE_VISIT )
     {
-        if (dir > 0)
+        if (dir == WHEEL_UP)
         {
             m_visitDist -= 8.0f;
             if (m_visitDist < 20.0f)
                 m_visitDist = 20.0f;
         }
-        if (dir < 0)
+        else if (dir == WHEEL_DOWN)
         {
             m_visitDist += 8.0f;
             if (m_visitDist > 200.0f)
@@ -1184,19 +1182,19 @@ bool Gfx::CCamera::EventFrameFree(const Event &event)
         m_eyePt = Math::LookatPoint(m_eyePt, m_directionH, m_directionV, m_mouseDirV * event.rTime * factor * m_speed);
 
     // Up/Down
-    m_eyePt = Math::LookatPoint(m_eyePt, m_directionH, m_directionV, event.axeY * event.rTime * factor * m_speed);
+    m_eyePt = Math::LookatPoint(m_eyePt, m_directionH, m_directionV, event.motionInput.y * event.rTime * factor * m_speed);
 
     // Left/Right
     if ( event.keyState & KS_CONTROL )
     {
-        if ( event.axeX < 0.0f )
-            m_eyePt = Math::LookatPoint(m_eyePt, m_directionH + Math::PI / 2.0f, m_directionV, -event.axeX * event.rTime * factor * m_speed);
-        if ( event.axeX > 0.0f )
-            m_eyePt = Math::LookatPoint(m_eyePt, m_directionH - Math::PI / 2.0f, m_directionV,  event.axeX * event.rTime * factor * m_speed);
+        if ( event.motionInput.x < 0.0f )
+            m_eyePt = Math::LookatPoint(m_eyePt, m_directionH + Math::PI / 2.0f, m_directionV, -event.motionInput.x * event.rTime * factor * m_speed);
+        if ( event.motionInput.x > 0.0f )
+            m_eyePt = Math::LookatPoint(m_eyePt, m_directionH - Math::PI / 2.0f, m_directionV,  event.motionInput.x * event.rTime * factor * m_speed);
     }
     else
     {
-        m_directionH -= event.axeX * event.rTime * 0.7f * m_speed;
+        m_directionH -= event.motionInput.x * event.rTime * 0.7f * m_speed;
     }
 
     // PageUp/PageDown
diff --git a/src/graphics/engine/camera.h b/src/graphics/engine/camera.h
index f2022f7..7a7350f 100644
--- a/src/graphics/engine/camera.h
+++ b/src/graphics/engine/camera.h
@@ -208,7 +208,7 @@ protected:
     //! Changes the camera according to the mouse moved
     bool        EventMouseMove(const Event &event);
     //! Mouse wheel operation
-    void        EventMouseWheel(int dir);
+    void        EventMouseWheel(WheelDirection dir);
     //! Changes the camera according to the time elapsed
     bool        EventFrame(const Event &event);
     //! Moves the point of view
-- 
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