Question

我写了一个像Flappy Bird（游戏）中的一个小代码，在我的一个计时器中我编写了以下代码但是当我启动这个计时器时它只是向我显示一个向上和一个向下管3次然后画画只是变黑了，它不再显示我的管道。如果你们告诉我问题出在哪里，那就太感恩了..

private void timer2_Tick(object sender, EventArgs e)
    {
        if (Pipe1[0] + PipeWidth <= 0 | start == true)
        {
            Random rnd = new Random();
            int px = this.Width;
            int py = rnd.Next(40, (this.Height - PipeDifferentY));
            var p2x = px;
            var p2y = py + PipeDifferentY;
            int[] p1 = { px, py, p2x, p2y };
            Pipe1 = p1;
        }
        else
        {
            Pipe1[0] = Pipe1[0] - 2;
            Pipe1[2] = Pipe1[2] - 2;
        }
        if (Pipe2[0] + PipeWidth <= 0)
        {
            Random rnd = new Random();
            int px = this.Width;
            int py = rnd.Next(40, (this.Height - PipeDifferentY));
            var p2x = px;
            var p2y = py + PipeDifferentY;
            int[] p1 = { px, py, p2x, p2y };
            Pipe1 = p1;
        }
        else
        {
            Pipe2[0] = Pipe2[0] - 2;
            Pipe2[2] = Pipe2[2] - 2;
        }
        if (start == true)
        {
            start = false;
        }
    }

以下是声明：

int[] Pipe1 = { 0, 0, 0, 0 };
int[] Pipe2 = { 0, 0, 0, 0 };
int PipeWidth = 55;
int PipeDifferentY = 140;
int PipeDifferentX = 180;
bool start = true;

这是加载表单部分：

Random rnd = new Random();
int py = rnd.Next(40, (this.Height - PipeDifferentY));
int py2 = py + PipeDifferentY;
int[] p1 = { this.Width, py, this.Width, py2 };
Pipe1 = p1;

py = rnd.Next(40, (this.Height - PipeDifferentY));
py2 = py + PipeDifferentY;
int[] p2 = { this.Width + PipeDifferentX, py, this.Width + PipeDifferentX, py2 };
Pipe2 = p2;

这是绘画部分：

e.Graphics.FillRectangle(Brushes.LightCyan, new Rectangle(Pipe1[0], 0, PipeWidth, Pipe1[1]));
        e.Graphics.FillRectangle(Brushes.LightCyan, new Rectangle(Pipe1[2], Pipe1[3], PipeWidth, this.Height - Pipe1[3]));

        e.Graphics.FillRectangle(Brushes.LightCyan, new Rectangle(Pipe2[0], 0, PipeWidth, Pipe2[1]));
        e.Graphics.FillRectangle(Brushes.LightCyan, new Rectangle(Pipe2[2], Pipe2[3], PipeWidth, this.Height - Pipe2[3]));

第一个计时器只有：

this.Invalidate();

Answer 1

Pipe1 if语句的底部有一个迷路Pipe2。

更新

尝试将更改声明为：

List<int> Pipe1 = new List<int>();
List<int> Pipe2 = new List<int>();
int PipeWidth = 55;
int PipeDifferentY = 140;
int PipeDifferentX = 180;
bool start = true;

和计时器功能：

 private void timer2_Tick(object sender, EventArgs e)
        {
            if (Pipe1[0] + PipeWidth <= 0 | start == true)
            {
                Random rnd = new Random();
                int px = this.Width;
                int py = rnd.Next(40, (this.Height - PipeDifferentY));
                var p2x = px;
                var p2y = py + PipeDifferentY;
                Pipe1.Clear();
                Pipe1.Add(px);
                Pipe1.Add(py);
                Pipe1.Add(p2x);
                Pipe1.Add(p2y);
            }
            else
            {
                Pipe1[0] = Pipe1[0] - 2;
                Pipe1[2] = Pipe1[2] - 2;
            }
            if (Pipe2[0] + PipeWidth <= 0)
            {
                Random rnd = new Random();
                int px = this.Width;
                int py = rnd.Next(40, (this.Height - PipeDifferentY));
                var p2x = px;
                var p2y = py + PipeDifferentY;
                int[] p1 = { px, py, p2x, p2y };
                Pipe2.Clear();
                Pipe2.Add(px);
                Pipe2.Add(py);
                Pipe2.Add(p2x);
                Pipe2.Add(p2y);
            }
            else
            {
                Pipe2[0] = Pipe2[0] - 2;
                Pipe2[2] = Pipe2[2] - 2;
            }
            if (start == true)
            {
                start = false;
            }
        }

和你的负荷形成一部分：

Random rnd = new Random();
int py = rnd.Next(40, (this.Height - PipeDifferentY));
int py2 = py + PipeDifferentY;
Pipe1.Clear();
Pipe1.Add(this.Width);
Pipe1.Add(py);
Pipe1.Add(this.Width);
Pipe1.Add(p2y);

py = rnd.Next(40, (this.Height - PipeDifferentY));
py2 = py + PipeDifferentY;
Pipe2.Clear();
Pipe2.Add(this.Width + PipeDifferentX);
Pipe2.Add(py);
Pipe2.Add(this.Width + PipeDifferentX);
Pipe2.Add(p2y);

绘画部分应该没问题

C＃绘制随机矩形

1 个答案: