ZAnimation

include/ZE_ZAnimation.h

@@ -0,0 +1,75 @@
+/*******************************************************************************
+        This file is Part of the ZEngine Library for 2D game development.
+                   Copyright (C) 2002, 2003 James Turk
+
+                     Licensed under a BSD-style license.
+
+    The maintainer of this library is James Turk (james@conceptofzero.net) 
+     and the home of this Library is http://www.zengine.sourceforge.net
+*******************************************************************************/
+
+/*!
+    \file ZE_ZAnimation.h
+    \brief Definition file for ZAnimation.
+
+    Definition file for ZAnimation, a class for animations using ZImage.
+    <br>$Id: ZE_ZAnimation.h,v 1.1 2003/11/25 01:31:36 cozman Exp $<br>
+    \author James Turk
+**/
+
+#ifndef __ze_zanimation_h__
+#define __ze_zanimation_h__
+
+#include "ZE_ZEngine.h"
+#include "ZE_ZImage.h"
+
+namespace ZE
+{
+
+enum ZAnimationType
+{
+    ZANIM_ONCE,
+    ZANIM_LOOP,
+    ZANIM_REV_ONCE,
+    ZANIM_REV_LOOP
+};
+
+class ZAnimation
+{
+    protected:
+        ZEngine *rEngine;
+        ZImage *rAnimImages;
+        float rAnimWidth;
+        float rAnimHeight;
+        int rCurFrame;
+        int rNumFrames;
+        int rFrameStep;
+        Uint32 rFrameDelay;
+        Uint32 rNextFrameTime;
+        bool rLoop;
+        bool rBackwards;
+    public:
+        ZAnimation();
+        ZAnimation(ZImage *images, int numFrames, Uint32 frameDelay, bool loop=false, bool backwards=false, float width=0, float height=0);
+
+        void Create(ZImage *images, int numFrames, Uint32 frameDelay, bool loop=false, bool backwards=false, float width=0, float height=0);
+        void SetAnimImages(ZImage *images, int numFrames);
+        void SetFrameDelay(Uint32 frameDelay);
+        void SetAnimType(bool loop, bool backwards);
+        void SetAnimSize(float width, float height);
+
+        void Start();
+        void Stop();
+        void Pause();
+        void Unpause();
+        void SetFrame(int frame);
+
+        void Update();
+        void Draw(float x, float y);
+
+        bool Stopped();
+};
+
+}
+
+#endif //__ze_zanimation_h__

src/ZE_ZAnimation.cpp

@@ -0,0 +1,149 @@
+/*******************************************************************************
+        This file is Part of the ZEngine Library for 2D game development.
+                   Copyright (C) 2002, 2003 James Turk
+
+                     Licensed under a BSD-style license.
+
+    The maintainer of this library is James Turk (james@conceptofzero.net) 
+     and the home of this Library is http://www.zengine.sourceforge.net
+*******************************************************************************/
+
+/**
+    \file ZE_ZAnimation.cpp
+    \brief Source file for ZAnimation.
+
+    Implementation of ZAnimation, ZEngine's class for ZImage based animations.
+    <br>$Id: ZE_ZAnimation.cpp,v 1.1 2003/11/25 01:31:37 cozman Exp $<br>
+    \author James Turk
+**/
+
+#include "ZE_ZAnimation.h"
+
+namespace ZE
+{
+
+ZAnimation::ZAnimation() :
+    rEngine(ZEngine::GetInstance()), 
+    rAnimImages(NULL),
+    rAnimWidth(0),rAnimHeight(0),
+    rCurFrame(0),rNumFrames(0),rFrameStep(0),
+    rFrameDelay(0),rNextFrameTime(0),
+    rLoop(false), rBackwards(false)
+{
+}
+
+ZAnimation::ZAnimation(ZImage *images, int numFrames, Uint32 frameDelay, bool loop, bool backwards, float width, float height)
+{
+    rEngine = ZEngine::GetInstance();
+    Create(images,numFrames,frameDelay,loop,backwards,width,height);
+}
+
+void ZAnimation::Create(ZImage *images, int numFrames, Uint32 frameDelay, bool loop, bool backwards, float width, float height)
+{
+    rAnimImages = images;
+    rNumFrames = numFrames;
+    rFrameDelay = frameDelay;
+    rLoop = loop;
+    rBackwards = backwards;
+    rAnimWidth = width;
+    rAnimHeight = height;
+    Stop();
+}
+
+void ZAnimation::SetAnimImages(ZImage *images, int numFrames)
+{
+    rAnimImages = images;
+    rNumFrames = numFrames;
+}
+
+void ZAnimation::SetFrameDelay(Uint32 frameDelay)
+{
+    rFrameDelay = frameDelay;
+}
+
+void ZAnimation::SetAnimType(bool loop, bool backwards)
+{
+    rLoop = loop;
+    rBackwards = backwards;
+}
+
+void ZAnimation::SetAnimSize(float width, float height)
+{
+    rAnimWidth = width;
+    rAnimHeight = height;
+}
+
+void ZAnimation::Start()
+{
+    rCurFrame = rBackwards ? rNumFrames-1 : 0;
+    Unpause();
+}
+
+void ZAnimation::Stop()
+{
+    rCurFrame = rBackwards ? rNumFrames-1 : 0;
+    Pause();
+}
+
+void ZAnimation::Pause()
+{
+    rFrameStep = 0;
+}
+
+void ZAnimation::Unpause()
+{
+    rFrameStep = rBackwards ? -1 : 1;
+    rNextFrameTime = rEngine->GetTime()+rFrameDelay;
+}
+
+void ZAnimation::SetFrame(int frame)
+{
+    if(frame >= 0 && frame < rNumFrames)
+        rCurFrame = frame;
+    else if(frame < 0 && frame >= -rNumFrames)
+        SetFrame(rNumFrames+frame);
+    else
+    {
+        //invalid frame
+    }
+}
+
+void ZAnimation::Update()
+{
+    if(rEngine->GetTime() >= rNextFrameTime)
+    {
+        rCurFrame += rFrameStep;
+        
+        if(rCurFrame < 0 || rCurFrame >= rNumFrames)
+        {
+            if(rLoop)
+                rCurFrame = rBackwards ? rNumFrames-1 : 0;
+            else
+            {
+                Stop();
+                SetFrame(-1); //set to last frame
+            }
+        }
+        rNextFrameTime = rEngine->GetTime()+rFrameDelay;
+    }
+}
+
+void ZAnimation::Draw(float x, float y)
+{
+    if(rAnimImages)
+    {
+#if (GFX_BACKEND == ZE_OGL)
+        rAnimImages[rCurFrame].Resize(rAnimWidth,rAnimHeight);
+        rAnimImages[rCurFrame].Draw(x,y);
+#elif (GFX_BACKEND == ZE_SDL)
+       rAnimImages[rCurFrame].Draw(static_cast<int>(x),static_cast<int>(y));
+#endif
+    }
+}
+
+bool ZAnimation::Stopped()
+{
+    return rFrameStep == 0;
+}
+
+}

vc7/ZEngine.vcproj

@@ -61,6 +61,9 @@
 			<File
 				RelativePath="..\src\ZE_Utility.cpp">
 			</File>
+			<File
+				RelativePath="..\src\ZE_ZAnimation.cpp">
+			</File>
 			<File
 				RelativePath="..\src\ZE_ZConfigFile.cpp">
 			</File>
@@ -104,6 +107,9 @@
 			<File
 				RelativePath="..\include\ZE_Utility.h">
 			</File>
+			<File
+				RelativePath="..\include\ZE_ZAnimation.h">
+			</File>
 			<File
 				RelativePath="..\include\ZE_ZBaseParticleSystem.h">
 			</File>