Interpolater

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In Games motion will be define with speed, acceleration, torque etc.. But sometimes we don't want to calculate speed and acc. How can give motion another way. If we define start,end point and time. The objects automaticly calculate it's speed. Interpolate. You can use this tecnique any type of value. For example alpha,x,y,width,height,rot, etc..) 

interpID=swInterpolaterCreate(0,1,10);

Api Docs
SwEngine, swGraphics, swInterpolator, 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")    
#pragma comment (lib,"../../lib/SWGui.lib")    
 
 
swApplication interpolationApp;
float alpha=0;
int   interpID=-1;
 
 
//-------------------------------------------------------------------------------------------
void GameLoop(){ 
 
	swGraphicsBeginScene();
 
 
	//Background
	swGraphicsSetBgColor0(0.6f,0.6f,0.6f);
 
 
	//5gen
	swGraphicsSetColor0(0.3,0.2,0.8,alpha);
	swGraphicsSetBlendingMode(SW_BLENDING_MODE_SOLID);
	alpha=swInterpolaterGetValue(interpID);
	swGraphicsRenderSolidElips0(300,300,200,200,5);
	swGraphicsEndScene();
 
}
 
 
//-------------------------------------------------------------------------------------------
int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nShowCmd)
{ 
 
 
	//Application Settings
	interpolationApp.hInstance=hInstance;
	interpolationApp.fullScreen=false;
	interpolationApp.cursor=true;
	interpolationApp.width=800;
	interpolationApp.height=600;
	interpolationApp.title="Interpolation";
	interpolationApp.path="";
	interpolationApp.appRun=GameLoop;
 
	//Application Execution
	swEngineInit(&interpolationApp);
 
	//Init Application
	interpID=swInterpolaterCreate(0,1,10);
	swInterpolaterStart(interpID);
 
	swEngineRun();
	swEngineExit();
 
	return 0;
}
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