一则响应鼠标打击的趣味动作实例_

一则响应鼠标打击的趣味动作实例

2005-1-8 9:04:00　　作者：翅膀　　来源：PConline　网友评论 0 条　论坛

　　13、在“Action”层的第2帧插入关键帧，在第7帧插入帧，此时主场景中的层应该如图4所示。点击“Action”层的第2帧，在此帧的Action Script面板上面添加语句下所示。

图4

以下是引用片段：


stop();
VEL_SAL_LIMIT = 70;                  // 注释1
VEL_HIT_LIMIT = 180;
DIVIDE_NUM_STRIKE = 30;
DIVIDE_NUM_HIT = 24;
DIVIDE_NUM_SAL = 12;
Area_Head_Left._visible = false;            // 注释2
Area_Head_Right._visible = false;
Area_Arm_Left._visible = false;
Area_Arm_Right._visible = false;
Area_Leg_Left._visible = false;
Area_Leg_Right._visible = false;
cursor_old_x = 0.0;                       // 注释3
cursor_old_y = 0.0;
cursor_new_x = 0.0;
cursor_new_y = 0.0;
cursor_velocity = 0.0;
HitArea = "";
divide_num = 1;
xpoint_array = new Array();
ypoint_array = new Array();
init = false;
function CalVelocity() {                  // 注释4
    cursor_old_x = cursor_new_x;
    cursor_old_y = cursor_new_y;
    cursor_new_x = int(this._xmouse);
    cursor_new_y = int(this._ymouse);
    cursor_velocity = int(Math.sqrt(Math.pow(cursor_new_x-cursor_old_x, 2)+Math.pow(cursor_new_y-cursor_old_y, 2)));
}
function CalPoints() {                             // 注释5
    if (cursor_velocity>VEL_HIT_LIMIT) {
        divide_num = DIVIDE_NUM_STRIKE;
    } else if (cursor_velocity>VEL_SAL_LIMIT) {
        divide_num = DIVIDE_NUM_HIT;
    } else {
        divide_num = DIVIDE_NUM_SAL;
    }
    xdivide = (cursor_new_x-cursor_old_x)/divide_num;
    ydivide = (cursor_new_y-cursor_old_y)/divide_num;
    for (i=0; i
function HitCheck() {                                // 注释6
    for (i=0; icursor_old_x) {
                    HitArea = "Area_Head_Left";
                    break;
                }
            }
        } else if (Area_Head_Right.hitTest(xpoint_array[i], ypoint_array[i], true)) {
            if (!Area_Head_Right.hitTest(cursor_old_x, cursor_old_y, true)) {
                if (xpoint_array[i]cursor_old_x) {
                    HitArea = "Area_Arm_Left";
                    break;
                }
            }
        } else if (Area_Arm_Right.hitTest(xpoint_array[i], ypoint_array[i], true)) {
            if (!Area_Arm_Right.hitTest(cursor_old_x, cursor_old_y, true)) {
                if (xpoint_array[i]cursor_old_x) {
                    HitArea = "Area_Leg_Left";
                    break;
                }
            }
        } else if (Area_Leg_Right.hitTest(xpoint_array[i], ypoint_array[i], true)) {
            if (!Area_Leg_Right.hitTest(cursor_old_x, cursor_old_y, true)) {
                if (xpoint_array[i]
function StartMotion() {              // 注释7
    _root.Motion_all.gotoAndPlay(togo);
}
onEnterFrame = function () {             // 注释8
    CalVelocity();
    CalPoints();
    HitCheck();
    if (!init) {
        HitArea = "";
        init = true;
    }
    switch (HitArea) {
    case "Area_Head_Left" :
        if (divide_num == DIVIDE_NUM_SAL) {
            togo = "TL_w";
        } else if (divide_num == DIVIDE_NUM_HIT) {
            togo = "TL_m";
        } else if (divide_num == DIVIDE_NUM_STRIKE) {
            togo = "TL_s";
        }
        StartMotion();
        HitArea = "";
        break;
    case "Area_Head_Right" :
        if (divide_num == DIVIDE_NUM_SAL) {
            togo = "TR_w";
        } else if (divide_num == DIVIDE_NUM_HIT) {
            togo = "TR_m";
        } else if (divide_num == DIVIDE_NUM_STRIKE) {
            togo = "TR_s";
        }
        StartMotion();
        HitArea = "";
        break;
    case "Area_Arm_Left" :
        if (divide_num == DIVIDE_NUM_SAL) {
            togo = "ML_w";
        } else if (divide_num == DIVIDE_NUM_HIT) {
            togo = "ML_s";
        } else if (divide_num == DIVIDE_NUM_STRIKE) {
            togo = "ML_s";
        }
        StartMotion();
        HitArea = "";
        break;
    case "Area_Arm_Right" :
        if (divide_num == DIVIDE_NUM_SAL) {
            togo = "MR_w";
        } else if (divide_num == DIVIDE_NUM_HIT) {
            togo = "MR_s";
        } else if (divide_num == DIVIDE_NUM_STRIKE) {
            togo = "MR_s";
        }
        StartMotion();
        HitArea = "";
        break;
    case "Area_Leg_Left" :
        if (divide_num == DIVIDE_NUM_SAL) {
            togo = "BL_w";
        } else if (divide_num == DIVIDE_NUM_HIT) {
            togo = "B_m";
        } else if (divide_num == DIVIDE_NUM_STRIKE) {
            togo = "BL_s";
        }
        StartMotion();
        HitArea = "";
        break;
    case "Area_Leg_Right" :
        if (divide_num == DIVIDE_NUM_SAL) {
            togo = "BR_w";
        } else if (divide_num == DIVIDE_NUM_HIT) {
            togo = "B_m";
        } else if (divide_num == DIVIDE_NUM_STRIKE) {
            togo = "BR_s";
        }
        StartMotion();
        HitArea = "";
        break;
    }
}

　　注释1：定义一些变量，分别用来判断鼠标是否以比较慢、中等、比较快的速度划过对象。
　　注释2：隐藏用来捕捉鼠标动作的对象。
　　注释3：初始化鼠标的参数。
　　注释4：这个函数是用来捕捉鼠标划过的速度和划过的位置。
　　注释5：这个函数是用来判断鼠标划过地速度，分别为强、中、弱。
　　注释6：这个函数是判断鼠标划过的位置，分别对应场景中的对象的头、手、脚。
　　注释7：在这个函数中，播放鼠标动作所触发的相应场景。
　　注释8：这是整个场景的启动函数，不断的循环，不断地对鼠标动作产生响应。

三、小结

　　总的来说，就是让场景中的对象响应鼠标动作，相应的鼠标动作触发播放相应的Movie Clip。其中Movie Clip的制作好坏，对整体效果的影响是很大的，值得用心去做好Movie Clip。

　　下载本例源文件(zip压缩文件,468K)

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