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/*
* Descent 3
* Copyright (C) 2024 Parallax Software
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
--- HISTORICAL COMMENTS FOLLOW ---
* $Logfile: /DescentIII/Main/editor/moveworld.cpp $
* $Revision: 1.1.1.1 $
* $Date: 2003-08-26 03:57:38 $
* $Author: kevinb $
*
* Code to use the mouse to rotate and move the world in the editor
*
* $Log: not supported by cvs2svn $
*
* 6 10/04/98 1:25p Matt
*
* 5 1/20/98 1:36p Matt
* Moved mine origin to the center of the terrain
*
* 4 10/03/97 3:39p Matt
* Added seperate sets of wireframe view variables for mine & room views
*
* 3 7/22/97 7:08p Matt
* Cleaned up D3EditState, moving some vars in and some out, and renaming
* and changing a few others
*
* 8 6/13/97 4:24p Matt
* Added functions to change wireframe view target
*
* 7 5/22/97 5:16p Jason
* added "drawing" on the topo map
*
* 6 3/31/97 5:58p Matt
* Revamped mine update flags
*
* 5 2/10/97 5:39p Matt
* Added func to reset view
*
* 4 2/07/97 5:47p Matt
* Renamed vector.h to vecmat.h to fix DevStudio problem
*
* $NoKeywords: $
*/
#include "Moveworld.h"
#include "ddio.h"
#include "vecmat.h"
#include "d3edit.h"
#include "mono.h"
#define dist_2d(x, y) sqrt((x) * (x) + (y) * (y))
void GetMouseRotation(int idx, int idy, matrix *RotMat) {
float dr, cos_theta, sin_theta, denom, cos_theta1;
float Radius = 100.0;
float dx, dy;
float dxdr, dydr;
idy *= -1;
dx = idx;
dy = idy;
dr = dist_2d(dx, dy);
denom = dist_2d(Radius, dr);
cos_theta = Radius / denom;
sin_theta = dr / denom;
cos_theta1 = 1.0 - cos_theta;
dxdr = dx / dr;
dydr = dy / dr;
RotMat->rvec.x = cos_theta + ((dydr * dydr) * cos_theta1);
RotMat->uvec.x = -((dxdr * dydr) * cos_theta1);
RotMat->fvec.x = (dxdr * sin_theta);
RotMat->rvec.y = RotMat->uvec.x;
RotMat->uvec.y = cos_theta + ((dxdr * dxdr) * cos_theta1);
RotMat->fvec.y = (dydr * sin_theta);
RotMat->rvec.z = -RotMat->fvec.x;
RotMat->uvec.z = -RotMat->fvec.y;
RotMat->fvec.z = cos_theta;
}
// Variables for current view position and orientation
#define DEFAULT_VIEW_DIST 500
#define DEFAULT_VIEW_RAD 5000
// Wireframe views for the mine & room views
wireframe_view Wireframe_view_mine = {IDENTITY_MATRIX, {0, 0, 0}, DEFAULT_VIEW_DIST, DEFAULT_VIEW_RAD};
wireframe_view Wireframe_view_room = {IDENTITY_MATRIX, {0, 0, 0}, DEFAULT_VIEW_DIST, DEFAULT_VIEW_RAD};
// The current wireframe view
wireframe_view *Wireframe_view = &Wireframe_view_mine;
#define MOVE_SCALE 3.0
#define ZOOM_SCALE 10.0
#define RAD_SCALE 10.0
// Read the mouse and move the wireframe view
void MoveWorld() {
int x, y, dx, dy;
ddio_MouseGetState(&x, &y, &dx, &dy);
if ((dx != 0) || (dy != 0)) {
if (Editor_view_mode == VM_TERRAIN) {
return;
}
if ((KEY_STATE(KEY_LCTRL) || KEY_STATE(KEY_RCTRL)) && !(KEY_STATE(KEY_LSHIFT) || KEY_STATE(KEY_RSHIFT))) {
matrix rotmat, tempm;
GetMouseRotation(dx, dy, &rotmat);
tempm = Wireframe_view->orient * rotmat;
Wireframe_view->orient = tempm;
Edview_changed = 1;
}
if ((KEY_STATE(KEY_LCTRL) || KEY_STATE(KEY_RCTRL)) && (KEY_STATE(KEY_LSHIFT) || KEY_STATE(KEY_RSHIFT))) {
Wireframe_view->target += Wireframe_view->orient.rvec * -dx * MOVE_SCALE;
Wireframe_view->target += Wireframe_view->orient.uvec * dy * MOVE_SCALE;
Edview_changed = 1;
}
if (KEY_STATE(KEY_Z) && !(KEY_STATE(KEY_LSHIFT) || KEY_STATE(KEY_RSHIFT))) {
Wireframe_view->dist += dy * ZOOM_SCALE;
if (Wireframe_view->dist < 0)
Wireframe_view->dist = 0;
Edview_changed = 1;
}
if (KEY_STATE(KEY_Z) && (KEY_STATE(KEY_LSHIFT) || KEY_STATE(KEY_RSHIFT))) {
Wireframe_view->rad += dy * RAD_SCALE;
if (Wireframe_view->rad < 0)
Wireframe_view->rad = 0;
EditorStatus("View radius = %.0f", Wireframe_view->rad);
Edview_changed = 1;
}
}
}
extern vector Mine_origin;
// Reset the orienation, position, & distance of the wireframe view
void ResetWireframeView() {
Wireframe_view->dist = DEFAULT_VIEW_DIST;
Wireframe_view->rad = DEFAULT_VIEW_RAD;
vm_MakeIdentity(&Wireframe_view->orient);
Wireframe_view->target = Mine_origin;
Edview_changed = 1;
}
// Reset the view radius of the wireframe view
void ResetWireframeViewRad() {
Wireframe_view->rad = DEFAULT_VIEW_RAD;
Edview_changed = 1;
}
// Set the wireframe view target to a specific location
// Does not reset the distance or orientation
void SetWireframeView(vector *pos) {
Wireframe_view->target = *pos;
Edview_changed = 1;
}
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