graphics.c

手机开发环境BREW实例

////////////////////////////////////////////////////////////////////////////////////////////
//Graphics.c　有关图像处理的功能
//
//注意!以下函数如无特殊说明，都只是把图像画在后台，没有显示出来

#include "Type.h"


extern BOOL IsStar(BYTE btContent);
extern BOOL IsBomb(BYTE btContent);
extern BOOL IsPlayer(BYTE btContent);


//得到玩家的点的颜色，返回值ret[0]-R ret[1]-G ret[2]-B, ret[3]未使用
DWORD Content2PlayerColor(BYTE btContent)
{
	BYTE pbtRet[4];//ret[0]-R ret[1]-G ret[2]-B

	*((DWORD*)pbtRet) = 0;
//红
	if(btContent & 1)
	{
		pbtRet[0] = 0xFF;
	}
	if(btContent & 8)
	{
		pbtRet[0] -= (0xFF / 2);
	}
//绿
	if(btContent & 2)
	{
		pbtRet[1] = 0xFF;
	}
	if(btContent & 16)
	{
		pbtRet[1] -= (0xFF / 2);
	}
//蓝
	if(btContent & 4)
	{
		pbtRet[2] = 0xFF;
	}
	if(btContent & 32)
	{
		pbtRet[2] -= (0xFF / 2);
	}

	return *((DWORD*)pbtRet);
}

//清屏
void ClearScreen(SAppData* psApp)
{
	IGRAPHICS_SetBackground(psApp->pIGraphics, 0, 0, 0);
	IGRAPHICS_ClearViewport(psApp->pIGraphics);
}

//画出一个雷
void DrawBomb(SAppData* psApp,
			  BYTE btGridX, BYTE btGridY)//网格索引
{
	AEECircle sCircle;
	AEELine   sLine;
	AEEPoint  pt;
//求出图形数据
	//圆
	sCircle.cx = btGridX * BLOCK_SIZE + (BLOCK_SIZE * 1 / 3);
	sCircle.cy = btGridY * BLOCK_SIZE + (BLOCK_SIZE * 2 / 3);
	sCircle.r  = BLOCK_SIZE / 3;
	//柄
	sLine.sx = btGridX * BLOCK_SIZE + (BLOCK_SIZE - 2);
	sLine.sy = btGridY * BLOCK_SIZE + 2;
	sLine.ex = btGridX * BLOCK_SIZE + (BLOCK_SIZE / 2);
	sLine.ey = btGridY * BLOCK_SIZE + (BLOCK_SIZE / 2);
//准备环境
	IGRAPHICS_SetFillMode(psApp->pIGraphics, TRUE);
	IGRAPHICS_SetFillColor(psApp->pIGraphics, 190, 136, 109, 0);
	IGRAPHICS_SetColor(psApp->pIGraphics, 190, 136, 109, 0);
//画出圆
	IGRAPHICS_DrawCircle(psApp->pIGraphics, &sCircle);
//画出柄
	IGRAPHICS_DrawLine(psApp->pIGraphics, &sLine);
//画出像素点
	IGRAPHICS_SetPointSize(psApp->pIGraphics, 2);
	pt.x = sLine.sx;
	pt.y = sLine.sy + 1;
	IGRAPHICS_DrawPoint(psApp->pIGraphics, &pt);
}

//画出一颗星
void DrawStar(SAppData* psApp,
			  BYTE btGridX, BYTE btGridY)//网格索引
{
	AEEPolygon sPolygon;
	uint16 iOffsetX, iOffsetY;
//计算坐标
	iOffsetX = BLOCK_SIZE * btGridX;
	iOffsetY = BLOCK_SIZE * btGridY;

	sPolygon.points = psApp->ps5Point;
	sPolygon.len    = 5;

	sPolygon.points[0].x = iOffsetX + (BLOCK_SIZE / 2);
	sPolygon.points[0].y = iOffsetY + 0;
	sPolygon.points[1].x = iOffsetX + BLOCK_SIZE;//(BLOCK_SIZE * 2 / 3);
	sPolygon.points[1].y = iOffsetY + BLOCK_SIZE;
	sPolygon.points[2].x = iOffsetX + 0;
	sPolygon.points[2].y = iOffsetY + (BLOCK_SIZE / 3);
	sPolygon.points[3].x = iOffsetX + BLOCK_SIZE;
	sPolygon.points[3].y = iOffsetY + (BLOCK_SIZE / 3);
	sPolygon.points[4].x = iOffsetX + 0;//(BLOCK_SIZE / 3);
	sPolygon.points[4].y = iOffsetY + BLOCK_SIZE;

//准备环境
	IGRAPHICS_SetFillMode(psApp->pIGraphics, TRUE);
	IGRAPHICS_SetFillColor(psApp->pIGraphics, 255, 255, 0, 0);
	IGRAPHICS_SetColor(psApp->pIGraphics, 255, 255, 0, 0);

//画
	IGRAPHICS_DrawPolygon(psApp->pIGraphics, &sPolygon);
}


//画出一个玩家
void DrawPlayer(SAppData* psApp,
				BYTE btGridX, BYTE btGridY,//网格索引
				BYTE btR, BYTE btG, BYTE btB)//颜色
{
	AEECircle sCircle;

//准备环境
	IGRAPHICS_SetFillMode(psApp->pIGraphics, TRUE);
	IGRAPHICS_SetFillColor(psApp->pIGraphics, btR, btG, btB, 0);
	IGRAPHICS_SetColor(psApp->pIGraphics, 255, 255, 255, 0);
//求出位置及尺寸
	sCircle.cx = btGridX * BLOCK_SIZE + (BLOCK_SIZE / 2);
	sCircle.cy = btGridY * BLOCK_SIZE + (BLOCK_SIZE / 2);
	sCircle.r  = BLOCK_SIZE / 2;
//画
	IGRAPHICS_DrawCircle(psApp->pIGraphics, &sCircle);
}

//把后台的图像显示出来
void Disp(SAppData* psApp)
{
	IGRAPHICS_Update(psApp->pIGraphics);
}

//刷屏，并显示出来
void RefurbishScreen(SAppData* psApp)
{
	BYTE x, y;
	DWORD dwRGB;
//清屏
	ClearScreen(psApp);
//画出网格内容
	for(x = 0; x < MAX_GRID; x++)
	{
		for(y = 0; y < MAX_GRID; y++)
		{
			if(IsStar(psApp->pbtGrid[x][y]))
			{//是星
				DrawStar(psApp, x, y);
			}else
			{
				if(IsBomb(psApp->pbtGrid[x][y]))
				{//有雷
					DrawBomb(psApp, x, y);
				}
				if(IsPlayer(psApp->pbtGrid[x][y]))
				{//有玩家在上面，看来是这个玩布下的
					dwRGB = Content2PlayerColor(psApp->pbtGrid[x][y]);
					DrawPlayer(psApp, x, y, ((BYTE*)&dwRGB)[0], ((BYTE*)&dwRGB)[1], ((BYTE*)&dwRGB)[2]);
				}
			}
		}
	}
//最后显示出来
	Disp(psApp);
}