如何突出显示面板网格上的特定区域答案

【问题标题】：How to highlight a specific area on a grid of panels如何突出显示面板网格上的特定区域
【发布时间】：2013-04-13 13:04:24
【问题描述】：

制作一个面板填充表单，我希望一个角色（由一个图片框表示）在它上面移动。当我单击角色的图片框时，我希望突出显示一个表示该角色可以移动多远的区域。

下面的图片是我到目前为止所管理的，但这并不是我想要的。红色边框代表图片框，橙色矩形代表高亮区域。每个黑色边框的矩形都是一个面板。

一个角色移动到对角线上的面板应该花费 2 次移动，这样如果一个角色有 2 次移动可用，那么当点击图片框时下面的区域应该被突出显示：

我理解为什么我的代码会突出显示一个正方形而不是我想要的区域，但我不知道如何解决它。任何帮助，将不胜感激;下面是我写的代码。

        foreach (Panel pan in grid)
        {
            if (pan.Left <= (selectedCharacter.PictureBox.Left + (selectedCharacter.Movement * 80)) 
                && pan.Left >= (selectedCharacter.PictureBox.Left - (selectedCharacter.Movement * 80)))
            {
                if (pan.Top <= (selectedCharacter.PictureBox.Top + (selectedCharacter.Movement * 100)) 
                    && pan.Top >= (selectedCharacter.PictureBox.Top - (selectedCharacter.Movement * 100)))
                {
                        pan.BackColor = selectedCharacter.PlayerHighlight;
                }
            }
        }

如果我不够清楚，请随时提出问题

【问题讨论】：

标签： c# foreach panel picturebox

【解决方案1】：

这是我为解决此问题而编写的代码。如果您能看到解决此问题的更简单/不同的方法，请随时发表评论。

Panel[] highlightedMovement = new Panel[1]; //creates an array of panels to be highlighted
highlightedMovement[0] = characterBeingHighlighted.CurrentPanel; //adds the panel the character is currently on to the array

int z = 1;

//highlights panels adjecent to those already highlighted for as many iterations as the character's movement stat
for (int i = 0; i < characterBeingHighlighted.Movement; i++)
{
    foreach (Panel highlightPanel in highlightedMovement)
    {
        //goes through all panels on the grid and adds them to the array if they are adjacent to any already in the array.
        foreach (Panel gridPanel in grid)
        {
            //checks if the panel is adjacent to any already in the array
            if ((gridPanel.Top == (highlightPanel.Top + 100) && gridPanel.Left == highlightPanel.Left) ||
                (gridPanel.Top == (highlightPanel.Top - 100) && gridPanel.Left == highlightPanel.Left) ||
                (gridPanel.Left == (highlightPanel.Left + 80) && gridPanel.Top == highlightPanel.Top) ||
                (gridPanel.Left == (highlightPanel.Left - 80) && gridPanel.Top == highlightPanel.Top))
            {
                //adds it to the array but only if it isn't already in the array
                if (!highlightedMovement.Contains(gridPanel))
                {
                    Array.Resize(ref highlightedMovement, highlightedMovement.Length + 1);
                    highlightedMovement[z] = gridPanel;
                    z++;
                }
            }
        }
    }
}

//highlights all the panels in the array
foreach (Panel panel in highlightedMovement)
{
    panel.BackColor = characterBeingHighlighted.PlayerHighlight;
}

【讨论】：