eatmouse.c

一个关于BREW的应用程序

/*===========================================================================

FILE: eatmouse.c
===========================================================================*/


/*===============================================================================
INCLUDES AND VARIABLE DEFINITIONS
=============================================================================== */
#include "AEEModGen.h"          // Module interface definitions
#include "AEEAppGen.h"          // Applet interface definitions
#include "AEEShell.h"           // Shell interface definitions

#include "eatmouse.bid"
#include "AEEStdLib.h"
#include "AEEFile.h"          // AEE File Manager Services

/*-------------------------------------------------------------------
Applet structure. All variables in here are reference via "pMe->"
-------------------------------------------------------------------*/
// create an applet structure that's passed around. All variables in
// here will be able to be referenced as static.
typedef struct  
{
    int      mouseX;
    int      mouseY;
}EATMOUSE;

typedef enum
{
    UP=0,
    LEFT,
    RIGHT,
    DOWN
}eatmouse_DIRECTION;//控制蛇的方向
typedef struct _eatmouse {
	AEEApplet      a ;	       // First element of this structure must be AEEApplet
    AEEDeviceInfo  DeviceInfo; // always have access to the hardware device information
    IDisplay      *pIDisplay;  // give a standard way to access the Display interface
    IShell        *pIShell;    // give a standard way to access the Shell interface

    // add your own variables here...
    int AreaWidth; // 移动空间的宽
    int AreaHeight; // 移动空间的高
    int gameover;//游戏是否结束
    int food_x;//the x cordinate for food
    int food_y;//the y cordinate for food
    eatmouse_DIRECTION current_snake_direction;
    int snake_length;   //蛇的长度
    int score;        //得分
    EATMOUSE snake[200];//蛇长度数组，最长为200

} eatmouse;

/*-------------------------------------------------------------------
Function Prototypes
-------------------------------------------------------------------*/
static  boolean eatmouse_HandleEvent(eatmouse* pMe, AEEEvent eCode, 
                                             uint16 wParam, uint32 dwParam);
boolean eatmouse_InitAppData(eatmouse* pMe);
void    eatmouse_FreeAppData(eatmouse* pMe);

/*===============================================================================
FUNCTION DEFINITIONS
=============================================================================== */
#define LEFT_LIMIT      1
#define UP_LIMIT        1

#define EATMOUSE_HEAD_X LEFT_LIMIT+7
#define EATMOUSE_HEAD_Y UP_LIMIT+7

#define BLOCK_SIZE 6 //小于或等于 6
/********************************************************************
模块    : 贪吃蛇
功能描述: translate an integer into decimal sting
输入参数: 
输出参数: 无
特别说明: 无
作者    : pro.mouse
创建时间: 2006/02/21
*********************************************************************/
unsigned int up_Itoa(AECHAR * buffer, int eger)
{
    int len, ueger;
    unsigned char minusP;
    
    minusP = (eger < 0);
    
    if(minusP)
    {
        if(buffer) 
        {
            *(buffer++) = '-';
        }
        ueger = (int)(0 - eger);
    }
    else
    {
        ueger = (unsigned int)eger;
    }
    
    {
        unsigned int tmp;
        
        tmp = ueger;
        len = 1;
        while ( (tmp /= 10) ) len += 1;
    } 
    {
        unsigned int pt;
        
        pt = len;
        if (buffer) buffer[pt] = 0;
        
        while(pt--) 
        {
            if (buffer)
            {
                buffer[pt] = (char)('0' + (ueger % 10));
            }
            ueger /= 10;
        }
    }
    return (len + 1 + minusP);
}

/********************************************************************
模块    : 贪吃蛇
功能描述: 画框子
输入参数: 
输出参数: 框子坐标
特别说明: 无
作者    : pro.mouse
创建时间: 2006/02/21
*********************************************************************/
void write_video(eatmouse * pMe, int x, int y, RGBVAL color, unsigned char full)
{
    AEERect rect;
    rect.x=x;
    rect.y=y;
    rect.dx=BLOCK_SIZE;
    rect.dy=BLOCK_SIZE;
    if(full)
        IDISPLAY_DrawRect(pMe->a.m_pIDisplay,
        &rect,
        RGB_BLACK,// RGBVAL 
        color,// RGBVAL 
        IDF_RECT_FRAME | IDF_RECT_FILL);
    
    else
        IDISPLAY_DrawRect(pMe->a.m_pIDisplay,
        &rect,
        RGB_WHITE,// RGBVAL 
        RGB_WHITE,// RGBVAL 
        IDF_RECT_FRAME | IDF_RECT_FILL);
}

/********************************************************************
模块    : 贪吃蛇
功能描述: 初始化框子
输入参数: 
输出参数: 无
特别说明: 无
作者    : pro.mouse
创建时间: 2006/02/21
*********************************************************************/
void init_frame(eatmouse * pMe)
{
    AEERect rect;
    rect.x=LEFT_LIMIT*BLOCK_SIZE-1;
    rect.y=UP_LIMIT*BLOCK_SIZE-1;
    rect.dx=(pMe->AreaWidth-LEFT_LIMIT+1)*BLOCK_SIZE+2;
    rect.dy=(pMe->AreaHeight-UP_LIMIT+1)*BLOCK_SIZE+2;
    IDISPLAY_DrawRect(pMe->a.m_pIDisplay,
        &rect,
        MAKE_RGB(0,0,255),// 上色
        MAKE_RGB(0,0,255),// 上色 
        IDF_RECT_FRAME );//| IDF_RECT_FILL);
}

/********************************************************************
模块    : 贪吃蛇
功能描述: 初始化蛇
输入参数: 
输出参数: 无
特别说明: 无
作者    : pro.mouse
创建时间: 2006/02/21
*********************************************************************/
void init_snake(eatmouse * pMe)
{
    int i;
    pMe->snake_length=7;
    pMe->current_snake_direction=RIGHT;
    for(i=0;i<pMe->snake_length;i++)
    {pMe->snake[i].mouseX=EATMOUSE_HEAD_X-i;
    pMe->snake[i].mouseY=EATMOUSE_HEAD_Y;
    }
    for(i=pMe->snake_length-1;i>=0;i--)
    {
        write_video(pMe,pMe->snake[i].mouseX*BLOCK_SIZE,pMe->snake[i].mouseY*BLOCK_SIZE,MAKE_RGB(128,128,128),TRUE);   
    }
}

/********************************************************************
模块    : 贪吃蛇
功能描述: 蛇吃食物
输入参数: 
输出参数: 无
特别说明: 无
作者    : pro.mouse
创建时间: 2006/02/21
*********************************************************************/
void generate_food(eatmouse *pMe)
{
    int i;
    int found=FALSE;
    while(!found)
    {
        pMe->food_x=(int)GET_UPTIMEMS();;
        pMe->food_x=(pMe->food_x%(pMe->AreaWidth-LEFT_LIMIT-2)+pMe->snake[0].mouseX+pMe->snake[2].mouseY)%(pMe->AreaWidth-LEFT_LIMIT-2);
        pMe->food_y=(int)GET_UPTIMEMS();;
        pMe->food_y=(pMe->food_y%(pMe->AreaHeight-UP_LIMIT-2)+pMe->snake[1].mouseY+pMe->snake[3].mouseX)%(pMe->AreaHeight-UP_LIMIT-2);
        pMe->food_x=pMe->food_x+LEFT_LIMIT+1;
        pMe->food_y=pMe->food_y+UP_LIMIT+1;
        for(i=0;i<pMe->snake_length;i++)
        {
            if(pMe->food_x==pMe->snake[i].mouseX&&pMe->food_y==pMe->snake[i].mouseY) break;
        }
        
        if(i>=pMe->snake_length) found=TRUE;
        
    }
    write_video(pMe,pMe->food_x*BLOCK_SIZE,pMe->food_y*BLOCK_SIZE,MAKE_RGB(255,0,0),TRUE);
}

/********************************************************************
模块    : 贪吃蛇
功能描述: 蛇吃了自己或者超过长度
输入参数: 
输出参数: 无
特别说明: 无
作者    : pro.mouse
创建时间: 2006/02/21
*********************************************************************/
boolean isself(eatmouse *pMe)
{
    int i;
    AECHAR GAMEOVER1[50]=
    {
        'I','s',' ','r','e','a','l','l','y',' ','a','n',' ','i','d','i','o','t',','
    };
    AECHAR GAMEOVER2[50]=
    {
        'M','o','r','e',' ','s','t','u','p','i','d',' ','t','h','a','n',' ','a',' ','P','i','g','!'
    };
    for(i=1;i<pMe->snake_length;i++)  
        if(pMe->snake[0].mouseX==pMe->snake[i].mouseX&&pMe->snake[0].mouseY==pMe->snake[i].mouseY) 
        {
            IDISPLAY_DrawText(pMe->a.m_pIDisplay,
                AEE_FONT_BOLD,
                GAMEOVER1,
                -1,
                30,
                35,
                NULL,
                IDF_ALIGN_CENTER);
            IDISPLAY_DrawText(pMe->a.m_pIDisplay,
                AEE_FONT_BOLD,
                GAMEOVER2,
                -1,
                30,
                55,
                NULL,
                IDF_ALIGN_CENTER);
            break;
        }
        if(i>=pMe->snake_length)
            return FALSE;
        else 
            return TRUE;       
}

/********************************************************************
模块    : 贪吃蛇
功能描述: 显示你的得分
输入参数: 
输出参数: 无
特别说明: 无
作者    : pro.mouse
创建时间: 2006/02/21
*********************************************************************/
static void display_score(eatmouse *pMe)
{
    
    AECHAR game_score[15]={'s','c','o','r','e',':',0,0,0,0,0,0,0,0,0};
    up_Itoa(game_score+6,(int)pMe->score);
	   IDISPLAY_DrawText(pMe->a.m_pIDisplay,    // Display instance
           AEE_FONT_BOLD,       // Use BOLD font
           game_score,              // Text - Normally comes from resource
           -1,                  // -1 = Use full string length
           0,   // x-cordinate
           (pMe->AreaHeight+UP_LIMIT)*BLOCK_SIZE+1, // y-cordinate
           NULL,                // No clipping
           IDF_ALIGN_CENTER);// | IDF_ALIGN_MIDDLE);
}