fs2open.github.com/fred2/grid.cpp

/*
 * Copyright (C) Volition, Inc. 1999.  All rights reserved.
 *
 * All source code herein is the property of Volition, Inc. You may not sell
 * or otherwise commercially exploit the source or things you created based on the
 * source.
 *
 */



#include "stdafx.h"
#include "FRED.h"
#include "Grid.h"
#include "mission/missiongrid.h"

#include "render/3d.h"
#include "object/object.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/**
 * @brief Creates (or recreates) a grid from the two given unit vectors
 *
 * @param forward Vector that points forward
 * @param right Vector that points to the right
 */
void GridOrient(vec3d *forward, vec3d *right);


BEGIN_MESSAGE_MAP(CGrid, CDialog)
	//{{AFX_MSG_MAP(CGrid)
	ON_BN_CLICKED(IDC_GRID_XY_PLANE, OnGridXyPlane)
	ON_BN_CLICKED(IDC_GRID_XZ_PLANE, OnGridXzPlane)
	ON_BN_CLICKED(IDC_GRID_YZ_PLANE, OnGridYzPlane)
	ON_WM_CLOSE()
	ON_WM_DESTROY()
	ON_WM_KILLFOCUS()
	ON_WM_VSCROLL()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()


BOOL CGrid::Create(LPCTSTR lpszClassName, LPCTSTR lpszWindowName, DWORD dwStyle, const RECT& rect, CWnd* pParentWnd, UINT nID, CCreateContext* pContext) {
	return CDialog::Create(IDD, pParentWnd);
}

BOOL CGrid::Create() {
	return CDialog::Create(CGrid::IDD);
}

CGrid::CGrid(CView* pView) {
	m_pGView = pView;
}

CGrid::CGrid(CWnd* pParent /*=NULL*/)
	: CDialog(CGrid::IDD, pParent) {
	//{{AFX_DATA_INIT(CGrid)
	m_GridSize = 0;
	//}}AFX_DATA_INIT

	m_pGView = NULL;

}

void CGrid::DoDataExchange(CDataExchange* pDX) {
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CGrid)
	DDX_Text(pDX, IDC_GRID_SIZE, m_GridSize);
	DDV_MinMaxUInt(pDX, m_GridSize, 2, 20);
	//}}AFX_DATA_MAP
}

void CGrid::OnClose() {
	DestroyWindow();
}

void CGrid::OnDestroy() {
	UpdateData(TRUE);

	CDialog::OnDestroy();

}

void CGrid::OnGridXyPlane() {
	vec3d	forward, right;

	vm_vec_make(&forward, 0.0f, 1.0f, 0.0f);
	vm_vec_make(&right, 1.0f, 0.0f, 0.0f);

	GridOrient(&forward, &right);
}

void CGrid::OnGridXzPlane() {
	vec3d	forward, right;

	vm_vec_make(&forward, 0.0f, 0.0f, 1.0f);
	vm_vec_make(&right, 1.0f, 0.0f, 0.0f);

	GridOrient(&forward, &right);
}

void CGrid::OnGridYzPlane() {
	vec3d	forward, right;

	vm_vec_make(&forward, 0.0f, 1.0f, 0.0f);
	vm_vec_make(&right, 0.0f, 0.0f, 1.0f);

	GridOrient(&forward, &right);
}

BOOL CGrid::OnInitDialog() {
	CDialog::OnInitDialog();

	CSpinButtonCtrl* pSpin = (CSpinButtonCtrl*) GetDlgItem(IDC_SPIN_GRID_SIZE);
	pSpin->SetRange(2, 20);
	if ((m_GridSize < 2) || (m_GridSize > 20))
		m_GridSize = The_grid->ncols / 5;
	pSpin->SetPos(m_GridSize);

	return TRUE;  // return TRUE unless you set the focus to a control
	// EXCEPTION: OCX Property Pages should return FALSE
}

void CGrid::OnKillFocus(CWnd* pNewWnd) {
	CDialog::OnKillFocus(pNewWnd);

	DestroyWindow();

}

void CGrid::OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar) {
	CString	strValue;

	CSpinButtonCtrl* pSpin = (CSpinButtonCtrl*) GetDlgItem(IDC_SPIN_GRID_SIZE);
	strValue.Format("%i", pSpin->GetPos());
	pSpin->GetBuddy()->SetWindowText(strValue);

	The_grid->nrows = pSpin->GetPos() * 5;
	The_grid->ncols = The_grid->nrows;

	modify_grid(The_grid);

	CDialog::OnVScroll(nSBCode, nPos, pScrollBar);
}

BOOL CGrid::DestroyWindow() {
	// TODO: Add your specialized code here and/or call the base class

	UpdateData(TRUE);

	return CDialog::DestroyWindow();
}

void GridOrient(vec3d *forward, vec3d *right) {
	vec3d	center;
	int		nrows, ncols;
	float	square_size;

	if (The_grid != NULL) {
		center = The_grid->center;
		nrows = The_grid->nrows;
		ncols = The_grid->ncols;
		square_size = The_grid->square_size;
	} else {
		vm_vec_make(&center, 0.0f, 0.0f, 0.0f);
		nrows = 20;
		ncols = 20;
		square_size = 2.0f;
	}

	The_grid = create_grid(The_grid, forward,
						   right,
						   &center,
						   nrows, ncols,
						   square_size);

	physics_init(&The_grid->physics);
}