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C++ Turtle::backward方法代码示例

本文整理汇总了C++中Turtle::backward方法的典型用法代码示例。如果您正苦于以下问题:C++ Turtle::backward方法的具体用法?C++ Turtle::backward怎么用?C++ Turtle::backward使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在Turtle的用法示例。


在下文中一共展示了Turtle::backward方法的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: tree

// Recursive fractal "tree" structure
void tree(Turtle& turtle, int level, double size, double angle,
        double scale) {
    if (level == 0) {
        turtle.forward(size);
        turtle.backward(size);
    } else {
        turtle.forward(size);
        turtle.left(angle);
        tree(turtle, level - 1, size * scale, angle, scale);
        turtle.right(angle);
        turtle.right(angle);
        tree(turtle, level - 1, size * scale, angle, scale);
        turtle.left(angle);
        turtle.backward(size);
    }
}
开发者ID:obiejuan,项目名称:cabrillo-college,代码行数:17,代码来源:turtletest.cpp

示例2: ccc_win_main

int ccc_win_main() {
    Turtle t;
    bool running = true;
    while (running == true) {
        double sides = -1;
        while (sides < 1)   {
            sides = t.getInt("Enter number of sides:");
        }
        double length = t.getDouble("Enter length of sides:");

        if (sides > 1) {
            int degrees = DEGREES_IN_CIRCLE / sides;
            t.setHeading(LEFT);
            
            /* 
            Apothem is the distance of the normal of any side of the polygon
            to the centerpoint of the polygon. The following code will
            center the shape in the window.
            */
            double apothem = length / (2 * tan(PI / sides)); 
            t.moveTo(length / 2, -apothem);
            
            int i = 0;
            while (i < sides) {
                t.forward(length);
                t.right(degrees);
                i++;
            }
        }
        if (sides == 1) {
            t.setHeading(0);
            // Creates the upper case letter M.
            t.moveTo(NTHREE,NNINE);
            t.right(TEN);
            t.forward(FORWARD_INC);
            t.right(G_TURN2);
            t.forward(FORWARD_INC);
            t.left(G_TURN2);
            t.forward(FORWARD_INC);
            t.right(G_TURN2);
            t.forward(FORWARD_INC);   

            // Creates the upper case letter G.
            t.moveTo(SEVEN_POINT_FIVE, N_ONE_POINT_FIVE);
            t.left(G_TURN);
            t.forward(2);
            t.backward(2);
            t.right(ONE_THIRTY);
            t.forward(2);
            t.left(G_TURN);
            t.forward(2);
            t.left(G_TURN);
            t.forward(2);
            t.left(G_TURN);
            t.forward(2);
            t.left(G_TURN);
            t.forward(2);
            t.left(G_TURN);
            t.forward(2);
            t.left(G_TURN);
            t.forward(2);
            t.left(SMALL_TURN);
            t.forward(1);
            t.left(SMALL_TURN);
            t.forward(1);
            t.left(SMALL_TURN);
            t.forward(1);
            t.left(SMALL_TURN);
            t.forward(1);
            t.backward(2);

            // Creates the upper case letter J.
            t.setHeading(RIGHT_TURN);
            t.moveTo(NSEVEN, FIVE);
            t.forward(2);
            t.right(STRAIGHT);
            t.forward(1);
            t.left(RIGHT_TURN);
            t.forward(2);
            t.right(RIGHT_TURN);
            t.forward(1);

            // Creates the upper case letter W.
            t.moveTo(-FOUR, FIVE);
            t.right(TWO_THIRTY);
            t.forward(W_INC);
            t.left(RIGHT_TURN);
            t.forward(2);
            t.right(RIGHT_TURN);
            t.forward(2);
            t.left(RIGHT_TURN);
            t.forward(W_INC);

            // Creates the upper case letter C.
            t.moveTo(FOUR, FIVE);
            t.right(C_TURN);
            t.forward(2);
            t.right(STRAIGHT);
            t.forward(2);
            t.left(RIGHT_TURN);
//.........这里部分代码省略.........
开发者ID:obiejuan,项目名称:cabrillo-college,代码行数:101,代码来源:turtleselect.cpp


注:本文中的Turtle::backward方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。