Animator

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In 2D games animated objects create by Sprite. But it's not adequate. You should also manage sprite image index. You listen timer and switch image index. The delay of switching operation defines animation speed. And end of sprite you want to return first image. Animator api develop for these purpose. Below example shows you how can animator api use.

ScreenShot
Image:Animator.JPG

Api Docs
SwEngine, swGraphics, swInput, swAnimator, swRect, swApplication

Source Code 

#include "../../include/SWEngine.h"
 
#pragma comment (lib,"../../lib/SWUtil.lib")    
#pragma comment (lib,"../../lib/SWTypes.lib")    
#pragma comment (lib,"../../lib/SWCore.lib")    
#pragma comment (lib,"../../lib/SWEngine.lib")   
#pragma comment (lib,"../../lib/SWGame.lib")   
 
 
swApplication animatorTestApp;
int spriteID=-1;
int animatorID=-1;
 
 
//Img1 Setting
swRect target1={200,200,125,154};
swKeyboardState keybState;
 
//-------------------------------------------------------------------------------------------
void GameLoop(){ 
 
	swInputListenKeyboard(&keybState);
 
	if(keybState.keyLEFT)
		swAnimatorSetExecutionMode(animatorID,SW_ANIMATOR_EXEC_BACKWARD_LOOP);
	else if(keybState.keyRIGHT)
		swAnimatorSetExecutionMode(animatorID,SW_ANIMATOR_EXEC_FORWARD_LOOP);
 
 
	if(keybState.key1)
		swAnimatorSetDelay(animatorID,0.01f);
	else if(keybState.key2)
		swAnimatorSetDelay(animatorID,0.02f);
	else if(keybState.key3)
		swAnimatorSetDelay(animatorID,0.03f);
	else if(keybState.key4)
		swAnimatorSetDelay(animatorID,0.04f);
	else if(keybState.key5)
		swAnimatorSetDelay(animatorID,0.05f);
	else if(keybState.key6)
		swAnimatorSetDelay(animatorID,0.06f);
	else if(keybState.key7)
		swAnimatorSetDelay(animatorID,0.07f);
	else if(keybState.key8)
		swAnimatorSetDelay(animatorID,0.08f);
	else if(keybState.key9)
		swAnimatorSetDelay(animatorID,0.09f);
 
 
 
 
	//Display	
	swGraphicsBeginScene();
 
	//Background
	swGraphicsSetBgColor2(&SWCOLOR_GRAY);
 
	//BlendingMode
	swGraphicsSetBlendingMode(SW_BLENDING_MODE_SOLID);
 
	//Draw Image
	swGraphicsSetColor0(1,1,1,1);
	swGraphicsRenderSprite0(spriteID,swAnimatorGetIndex(animatorID),&target1);
	swGraphicsEndScene();
 
}
 
 
 
 
 
//-------------------------------------------------------------------------------------------
int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nShowCmd)
{ 
 
 
	//Application Settings
	animatorTestApp.hInstance=hInstance;
	animatorTestApp.fullScreen=false;
	animatorTestApp.cursor=true;
	animatorTestApp.width=800;
	animatorTestApp.height=600;
	animatorTestApp.title="Animator Test";
	animatorTestApp.path="\\rsc\\AnimatorTest\\";
	animatorTestApp.appRun=GameLoop;
 
	//Application Execution
	swEngineInit(&animatorTestApp);
 
	//Init My Application
	spriteID=swGraphicsCreateSprite("XenRunning\\");
	animatorID=swAnimatorCreate(swGraphicsGetCountOfImgInSprite(spriteID),0.03f);
	swAnimatorSetExecutionMode(animatorID,SW_ANIMATOR_EXEC_BACKWARD_LOOP);
 
	swEngineRun();
	swEngineExit();
 
	return 0;
}


Animator nesnesini oluşturmak için sprite kaç resimden oluştuğunu ve resimler arasındaki geçiş süresini vermeniz gerekiyor. Aşağıdaki örnekte resimler arasında geçiş için 0.03sn bekleyeceğimizi belirtiyoruz. 

animatorID=swAnimatorCreate(swGraphicsGetCountOfImgInSprite(spriteID),0.03f);


Animator nesnesinin çalışma modunu belirtiyoruz. 

swAnimatorSetExecutionMode(animatorID,SW_ANIMATOR_EXEC_BACKWARD_LOOP);

Her animator indeksi istediğimizde, Animator geçen süre ve çalışma moduna göre bize o anki seçili resim indeksini dönüyor. 

swAnimatorGetIndex(animatorID)

Dönen indeksi Sprite rendering kullandığımızda animasyonlu görüntü elde ediyoruz. Oyun içerisindeki tüm karakter hareket ve davranışlarını bu mekanizma üzerine bindirebilirsiniz. 

swGraphicsRenderSprite0(spriteID,swAnimatorGetIndex(animatorID),&target1);
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