PSP程序开发例子解析(十二)InputSystem

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InputSystem例子掩饰了如何在程序中输入文字 
#include 

#include 
#include 
#include 
#include 
#include 

#include "GameApp.h"


//-------------------------------------------------------------------------------------
// Constructor. Variables can be initialized here.
//
//-------------------------------------------------------------------------------------
GameApp::GameApp()
{

}


//-------------------------------------------------------------------------------------
// Destructor.
//
//-------------------------------------------------------------------------------------
GameApp::~GameApp()
{

}


//-------------------------------------------------------------------------------------
// This is the init callback function. You should load and create your in-game 
// resources here.
// 
//-------------------------------------------------------------------------------------
void GameApp::Create()
{
m_inputStatus=0;
JInputSystem::GetInstance();
}


//-------------------------------------------------------------------------------------
// This is the clean up callback function. You should delete all your in-game 
// resources, for example texture and quads, here.
// 
//-------------------------------------------------------------------------------------
void GameApp::Destroy()
{
JInputSystem::Destory();
}


//-------------------------------------------------------------------------------------
// This is the update callback function and is called at each update frame
// before rendering. You should update the game logic here.
//
//-------------------------------------------------------------------------------------
void GameApp::Update()
{

JGE* engine = JGE::GetInstance();


// if Application is in input mode.
if(JInputSystem::GetInstance()->GetIsInputActive())
{
   JInputSystem::GetInstance()->Update();
   return;
}

if (m_inputStatus == 1 && !JInputSystem::GetInstance()->GetIsInputActive())
{
   m_inputStatus = 0;
   m_outstring=JInputSystem::GetInstance()->GetInputString();
}

// switch to input mode
if (JGE::GetInstance()->GetButtonClick(PSP_CTRL_CIRCLE))
{
   m_inputStatus = 1;
   JInputSystem::GetInstance()->EnableInputMode(JInputSystem::GetInstance()->GetInputString());
}

// do a screen shot when the PSP_CTRL_TRIANGLE button is pressed
if (engine->GetButtonClick(PSP_CTRL_TRIANGLE))
{
   char s[80];

   // save screen shot to root of Memory Stick 
   sprintf(s, "ms0:/screenshot.png");    
   JRenderer::GetInstance()->ScreenShot(s);
}

// exit when the CROSS button is pressed
if (engine->GetButtonClick(PSP_CTRL_CROSS)) 
{
   engine->End();
   return;
}

float dt = engine->GetDelta();   // Get time elapsed since last update.

//
// Your updating code here...
//
}


//-------------------------------------------------------------------------------------
// All rendering operations should be done in Render() only.
// 
//-------------------------------------------------------------------------------------
void GameApp::Render()
{
// get JRenderer instance
JRenderer* renderer = JRenderer::GetInstance();  

// clear screen to black
renderer->ClearScreen(ARGB(255,230,0,0));
JRenderer::GetInstance()->EnableTextureFilter(false);

if(JInputSystem::GetInstance()->GetIsInputActive())
{

   JInputSystem::GetInstance()->Draw();
   JInputSystem::GetInstance()->GetFont12()->RenderString((BYTE*)"Analog Control(摇杆)＋×○△□",10,170);
   JInputSystem::GetInstance()->GetFont12()->RenderString((BYTE*)"L: Shift",10,10);
   JInputSystem::GetInstance()->GetFont12()->RenderString((BYTE*)"R: Eng/Chi/Num",395,10);
   JInputSystem::GetInstance()->GetFont12()->RenderString((BYTE*)"↓＋× Finish Input(结束输入)",210,100);

   return;
}

std::string outstr = "Inputs String (输入字符串):" + m_outstring;
JInputSystem::GetInstance()->GetFont12()->RenderString((BYTE*)(outstr.c_str()),20,20);
JInputSystem::GetInstance()->GetFont12()->RenderString((BYTE*)" 按   ○ 开始输入",210,110);
JInputSystem::GetInstance()->GetFont12()->RenderString((BYTE*)"Press ○ to start",210,125);

JInputSystem::GetInstance()->GetFont12()->RenderString((BYTE*)" 按   ×   退出",210,160);
JInputSystem::GetInstance()->GetFont12()->RenderString((BYTE*)"Press × to exit",210,175);

//
// Your rendering code here...
//

}


//-------------------------------------------------------------------------------------
// This function is called when the system wants to pause the game. You can set a flag
// here to stop the update loop and audio playback.
//
//-------------------------------------------------------------------------------------
void GameApp::Pause()
{

}


//-------------------------------------------------------------------------------------
// This function is called when the game returns from the pause state.
//
//-------------------------------------------------------------------------------------
void GameApp::Resume()
{

}