axmol/cocos2dx/platform/android/jni/TouchesJni.cpp

/****************************************************************************
Copyright (c) 2010 cocos2d-x.org

http://www.cocos2d-x.org

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****************************************************************************/
#include "CCSet.h"
#include "CCDirector.h"
#include "CCKeypadDispatcher.h"
#include "CCTouch.h"
#include "CCEGLView.h"
#include "CCTouchDispatcher.h"

#include <android/log.h>
#include <jni.h>

#if 0
#define  LOG_TAG    "NativeTouchesJni"
#define  LOGD(...)  __android_log_print(ANDROID_LOG_DEBUG,LOG_TAG,__VA_ARGS__)
#else
#define  LOGD(...) 
#endif

using namespace cocos2d;

extern "C"
{

#define MAX_TOUCHES         5
static CCTouch *s_pTouches[MAX_TOUCHES] = { NULL };

    // handle touch event	
	void Java_org_cocos2dx_lib_Cocos2dxRenderer_nativeTouchesBegin(JNIEnv*  env, jobject thiz, jint id, jfloat x, jfloat y)
	{
		CCRect rcRect = CCEGLView::sharedOpenGLView().getViewPort();
		float fScreenScaleFactor = CCEGLView::sharedOpenGLView().getScreenScaleFactor();
		CCSet set;

		CCTouch *pTouch = s_pTouches[id];
		if (! pTouch)
		{
			LOGD("Beginning touches with id: %d, x=%f, y=%f", id, x, y);

			pTouch = new CCTouch();			
			pTouch->SetTouchInfo(0, (x - rcRect.origin.x) / fScreenScaleFactor, (y - rcRect.origin.y) / fScreenScaleFactor, id);
			s_pTouches[id] = pTouch;
			set.addObject(pTouch);

			cocos2d::CCDirector::sharedDirector()->getOpenGLView()->getDelegate()->touchesBegan(&set, NULL);
		}	
		else
		{
			LOGD("Beginnig touches with id: %d error", id);
		}
	}
	
	void Java_org_cocos2dx_lib_Cocos2dxRenderer_nativeTouchesEnd(JNIEnv*  env, jobject thiz, jint id, jfloat x, jfloat y)
	{
		CCRect rcRect = CCEGLView::sharedOpenGLView().getViewPort();
		float fScreenScaleFactor = CCEGLView::sharedOpenGLView().getScreenScaleFactor();
		CCSet set;

		/* Add to the set to send to the director */
		CCTouch* pTouch = s_pTouches[id];		
		if (pTouch)
		{
			LOGD("Ending touches with id: %d, x=%f, y=%f", id, x, y);

			pTouch->SetTouchInfo(0, (x - rcRect.origin.x) / fScreenScaleFactor , (y - rcRect.origin.y) / fScreenScaleFactor, id);
		    set.addObject(pTouch);

			// release the object
			pTouch->release();
			s_pTouches[id] = NULL;

			cocos2d::CCDirector::sharedDirector()->getOpenGLView()->getDelegate()->touchesEnded(&set, NULL);
		} else {
			LOGD("Ending touches with id: %d error", id);
		}		
	}
	
	void Java_org_cocos2dx_lib_Cocos2dxRenderer_nativeTouchesMove(JNIEnv*  env, jobject thiz, jintArray ids, jfloatArray xs, jfloatArray ys)
	{
		int size = env->GetArrayLength(ids);
		jint id[size];
		jfloat x[size];
		jfloat y[size];
		CCRect rcRect = CCEGLView::sharedOpenGLView().getViewPort();
		float fScreenScaleFactor = CCEGLView::sharedOpenGLView().getScreenScaleFactor();
		CCSet set;

		env->GetIntArrayRegion(ids, 0, size, id);
		env->GetFloatArrayRegion(xs, 0, size, x);
		env->GetFloatArrayRegion(ys, 0, size, y);

		for( int i = 0 ; i < size ; i++ ) {
			LOGD("Moving touches with id: %d, x=%f, y=%f", id[i], x[i], y[i]);
			cocos2d::CCTouch* pTouch = s_pTouches[id[i]];
			if (pTouch)
			{
				pTouch->SetTouchInfo(0, (x[i] - rcRect.origin.x) / fScreenScaleFactor , 
			                        (y[i] - rcRect.origin.y) / fScreenScaleFactor, id[i]);
				set.addObject(pTouch);
			}
			else
			{
				// It is error, should return.
				LOGD("Moving touches with id: %d error", id[i]);
				return;
			}
		}
		
		cocos2d::CCDirector::sharedDirector()->getOpenGLView()->getDelegate()->touchesMoved(&set, NULL);
	}

	void Java_org_cocos2dx_lib_Cocos2dxRenderer_nativeTouchesCancel(JNIEnv*  env, jobject thiz, jintArray ids, jfloatArray xs, jfloatArray ys)
	{
		int size = env->GetArrayLength(ids);
		jint id[size];
		jfloat x[size];
		jfloat y[size];
		CCRect rcRect = CCEGLView::sharedOpenGLView().getViewPort();
		float fScreenScaleFactor = CCEGLView::sharedOpenGLView().getScreenScaleFactor();
		CCSet set;

		env->GetIntArrayRegion(ids, 0, size, id);
		env->GetFloatArrayRegion(xs, 0, size, x);
		env->GetFloatArrayRegion(ys, 0, size, y);

		for( int i = 0 ; i < size ; i++ ) {
			cocos2d::CCTouch* pTouch = s_pTouches[id[i]];
			if (pTouch)
			{
				pTouch->SetTouchInfo(0, (x[i] - rcRect.origin.x) / fScreenScaleFactor , 
			                        (y[i] - rcRect.origin.y) / fScreenScaleFactor, id[i]);
				set.addObject(pTouch);
				s_pTouches[id[i]] = NULL;
				pTouch->release();
			}
		}

		cocos2d::CCDirector::sharedDirector()->getOpenGLView()->getDelegate()->touchesCancelled(&set, NULL);
	}

#define KEYCODE_BACK 0x04
#define KEYCODE_MENU 0x52

	// handle keydown event

	jboolean Java_org_cocos2dx_lib_Cocos2dxRenderer_nativeKeyDown(JNIEnv*  env, jobject thiz, jint keyCode)
	{
		switch (keyCode)
		{
		case KEYCODE_BACK:
			if (CCKeypadDispatcher::sharedDispatcher()->dispatchKeypadMSG(kTypeBackClicked))
				return JNI_TRUE;
			break;
		case KEYCODE_MENU:
			if (CCKeypadDispatcher::sharedDispatcher()->dispatchKeypadMSG(kTypeMenuClicked))
				return JNI_TRUE;
			break;
		default:
			return JNI_FALSE;
		}
		return JNI_FALSE;
	}
}