Thread: map[y][x+1] prob

hey,

i got a problem, i'm trying to create a 2d map from a 2 dimensional array, with x,y and z in it.

when i add the lines to raise the z he gives a array, i think its somethign in my syntax:

sy1 = sy - map[y][x];
ey1 = sy - map[y][x+1];
sy2 = ey - map[y+1][x];
ey2 = ey - map[y+1][x+1];

can someone help me ?

Code:

int DrawGLScene(GLvoid){
	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
	glLoadIdentity();

	GLfloat x, y;

	int maxX = 10;
	int maxY = 10;

	int mX,mY,sy,ey,sx1,sx2,ex1,ex2,sy1,sy2,ey1,ey2;

	mX = maxX * gridX + maxY * gridX;
	mY = maxY * gridX;

	for ( y=0; y < maxY; y++ )
	{
		sy = y * gridY;
		ey = sy + gridY;

		for (x=0; x < maxX; x++ )
		{
			sx1 = x - ( ( mX - x ) * gridX + ( y * gridX ) );
			ex1 = sx1 + gridX;

			sx2 = sx1 - gridX;
			ex2 = ex1 - gridX;

			sy1 = sy - map[y][x];
			ey1 = sy - map[y][x+1];

			sy2 = ey - map[y+1][x];
			ey2 = ey - map[y+1][x+1];

			glColor3f(1.0,0.5f,1.0f);	

			glBegin(GL_QUADS);
				glVertex3f( sx1, sy1, 0.0f);
				glVertex3f( ex1, ey1, 0.0f);
				glVertex3f( ex2, ey2, 0.0f);
				glVertex3f( sx2, sy2, 0.0f);
			glEnd();

			glLoadIdentity();
		}
	}	

	return TRUE;										// Keep Going
}

compiling:

Code:

C:\Documents and Settings\Maurad3r\Bureaublad\Lesson04\lesson4.cpp(101) : error C2108: subscript is not of integral type
C:\Documents and Settings\Maurad3r\Bureaublad\Lesson04\lesson4.cpp(101) : error C2108: subscript is not of integral type
C:\Documents and Settings\Maurad3r\Bureaublad\Lesson04\lesson4.cpp(101) : error C2113: pointer can only be subtracted from another pointer
C:\Documents and Settings\Maurad3r\Bureaublad\Lesson04\lesson4.cpp(102) : error C2108: subscript is not of integral type
C:\Documents and Settings\Maurad3r\Bureaublad\Lesson04\lesson4.cpp(102) : error C2108: subscript is not of integral type
C:\Documents and Settings\Maurad3r\Bureaublad\Lesson04\lesson4.cpp(102) : error C2113: pointer can only be subtracted from another pointer
C:\Documents and Settings\Maurad3r\Bureaublad\Lesson04\lesson4.cpp(104) : error C2108: subscript is not of integral type
C:\Documents and Settings\Maurad3r\Bureaublad\Lesson04\lesson4.cpp(104) : error C2108: subscript is not of integral type
C:\Documents and Settings\Maurad3r\Bureaublad\Lesson04\lesson4.cpp(104) : error C2113: pointer can only be subtracted from another pointer
C:\Documents and Settings\Maurad3r\Bureaublad\Lesson04\lesson4.cpp(105) : error C2108: subscript is not of integral type
C:\Documents and Settings\Maurad3r\Bureaublad\Lesson04\lesson4.cpp(105) : error C2108: subscript is not of integral type
C:\Documents and Settings\Maurad3r\Bureaublad\Lesson04\lesson4.cpp(105) : error C2113: pointer can only be subtracted from another pointer