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+/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+
+This file is part of Quake III Arena source code.
+
+Quake III Arena source code 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 2 of the License,
+or (at your option) any later version.
+
+Quake III Arena source code 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 Foobar; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+===========================================================================
+*/
+
+#include "stdafx.h"
+#include "qe3.h"
+
+#define PAGEFLIPS 2
+
+z_t z;
+
+/*
+============
+Z_Init
+============
+*/
+void Z_Init (void)
+{
+ z.origin[0] = 0;
+ z.origin[1] = 20;
+ z.origin[2] = 46;
+
+ z.scale = 1;
+}
+
+
+
+/*
+============================================================================
+
+ MOUSE ACTIONS
+
+============================================================================
+*/
+
+static int cursorx, cursory;
+
+/*
+==============
+Z_MouseDown
+==============
+*/
+void Z_MouseDown (int x, int y, int buttons)
+{
+ vec3_t org, dir, vup, vright;
+ brush_t *b;
+
+ Sys_GetCursorPos (&cursorx, &cursory);
+
+ vup[0] = 0; vup[1] = 0; vup[2] = 1/z.scale;
+
+ VectorCopy (z.origin, org);
+ org[2] += (y - (z.height/2))/z.scale;
+ org[1] = -8192;
+
+ b = selected_brushes.next;
+ if (b != &selected_brushes)
+ {
+ org[0] = (b->mins[0] + b->maxs[0])/2;
+ }
+
+ dir[0] = 0; dir[1] = 1; dir[2] = 0;
+
+ vright[0] = 0; vright[1] = 0; vright[2] = 0;
+
+ // LBUTTON = manipulate selection
+ // shift-LBUTTON = select
+ // middle button = grab texture
+ // ctrl-middle button = set entire brush to texture
+ // ctrl-shift-middle button = set single face to texture
+
+ int nMouseButton = g_PrefsDlg.m_nMouseButtons == 2 ? MK_RBUTTON : MK_MBUTTON;
+ if ( (buttons == MK_LBUTTON)
+ || (buttons == (MK_LBUTTON | MK_SHIFT))
+ || (buttons == MK_MBUTTON)
+// || (buttons == (MK_MBUTTON|MK_CONTROL))
+ || (buttons == (nMouseButton|MK_SHIFT|MK_CONTROL)) )
+ {
+ Drag_Begin (x, y, buttons,
+ vright, vup,
+ org, dir);
+ return;
+ }
+
+ // control mbutton = move camera
+ if ((buttons == (MK_CONTROL|nMouseButton) ) || (buttons == (MK_CONTROL|MK_LBUTTON)))
+ {
+ g_pParentWnd->GetCamera()->Camera().origin[2] = org[2] ;
+ Sys_UpdateWindows (W_CAMERA|W_XY_OVERLAY|W_Z);
+ }
+
+
+}
+
+/*
+==============
+Z_MouseUp
+==============
+*/
+void Z_MouseUp (int x, int y, int buttons)
+{
+ Drag_MouseUp ();
+}
+
+/*
+==============
+Z_MouseMoved
+==============
+*/
+void Z_MouseMoved (int x, int y, int buttons)
+{
+ if (!buttons)
+ return;
+ if (buttons == MK_LBUTTON)
+ {
+ Drag_MouseMoved (x, y, buttons);
+ Sys_UpdateWindows (W_Z|W_CAMERA_IFON|W_XY);
+ return;
+ }
+ // rbutton = drag z origin
+ if (buttons == MK_RBUTTON)
+ {
+ Sys_GetCursorPos (&x, &y);
+ if ( y != cursory)
+ {
+ z.origin[2] += y-cursory;
+ Sys_SetCursorPos (cursorx, cursory);
+ Sys_UpdateWindows (W_Z);
+ }
+ return;
+ }
+ // control mbutton = move camera
+ int nMouseButton = g_PrefsDlg.m_nMouseButtons == 2 ? MK_RBUTTON : MK_MBUTTON;
+ if ((buttons == (MK_CONTROL|nMouseButton) ) || (buttons == (MK_CONTROL|MK_LBUTTON)))
+ {
+ g_pParentWnd->GetCamera()->Camera().origin[2] = (y - (z.height/2))/z.scale;
+ Sys_UpdateWindows (W_CAMERA|W_XY_OVERLAY|W_Z);
+ }
+
+}
+
+
+/*
+============================================================================
+
+DRAWING
+
+============================================================================
+*/
+
+
+/*
+==============
+Z_DrawGrid
+==============
+*/
+void Z_DrawGrid (void)
+{
+ float zz, zb, ze;
+ int w, h;
+ char text[32];
+
+ w = z.width/2 / z.scale;
+ h = z.height/2 / z.scale;
+
+ zb = z.origin[2] - h;
+ if (zb < region_mins[2])
+ zb = region_mins[2];
+ zb = 64 * floor (zb/64);
+
+ ze = z.origin[2] + h;
+ if (ze > region_maxs[2])
+ ze = region_maxs[2];
+ ze = 64 * ceil (ze/64);
+
+ // draw major blocks
+
+ qglColor3fv(g_qeglobals.d_savedinfo.colors[COLOR_GRIDMAJOR]);
+
+ qglBegin (GL_LINES);
+
+ qglVertex2f (0, zb);
+ qglVertex2f (0, ze);
+
+ for (zz=zb ; zz<ze ; zz+=64)
+ {
+ qglVertex2f (-w, zz);
+ qglVertex2f (w, zz);
+ }
+
+ qglEnd ();
+
+ // draw minor blocks
+ if (g_qeglobals.d_showgrid && g_qeglobals.d_gridsize*z.scale >= 4 &&
+ g_qeglobals.d_savedinfo.colors[COLOR_GRIDMINOR] != g_qeglobals.d_savedinfo.colors[COLOR_GRIDBACK])
+ {
+ qglColor3fv(g_qeglobals.d_savedinfo.colors[COLOR_GRIDMINOR]);
+
+ qglBegin (GL_LINES);
+ for (zz=zb ; zz<ze ; zz+=g_qeglobals.d_gridsize)
+ {
+ if ( ! ((int)zz & 63) )
+ continue;
+ qglVertex2f (-w, zz);
+ qglVertex2f (w, zz);
+ }
+ qglEnd ();
+ }
+
+ // draw coordinate text if needed
+
+ qglColor3fv(g_qeglobals.d_savedinfo.colors[COLOR_GRIDTEXT]);
+
+ for (zz=zb ; zz<ze ; zz+=64)
+ {
+ qglRasterPos2f (-w+1, zz);
+ sprintf (text, "%i",(int)zz);
+ qglCallLists (strlen(text), GL_UNSIGNED_BYTE, text);
+ }
+}
+
+#define CAM_HEIGHT 48 // height of main part
+#define CAM_GIZMO 8 // height of the gizmo
+
+void ZDrawCameraIcon (void)
+{
+ float x, y;
+ int xCam = z.width/4;
+
+ x = 0;
+ y = g_pParentWnd->GetCamera()->Camera().origin[2];
+
+ qglColor3f (0.0, 0.0, 1.0);
+ qglBegin(GL_LINE_STRIP);
+ qglVertex3f (x-xCam,y,0);
+ qglVertex3f (x,y+CAM_GIZMO,0);
+ qglVertex3f (x+xCam,y,0);
+ qglVertex3f (x,y-CAM_GIZMO,0);
+ qglVertex3f (x-xCam,y,0);
+ qglVertex3f (x+xCam,y,0);
+ qglVertex3f (x+xCam,y-CAM_HEIGHT,0);
+ qglVertex3f (x-xCam,y-CAM_HEIGHT,0);
+ qglVertex3f (x-xCam,y,0);
+ qglEnd ();
+
+}
+
+GLbitfield glbitClear = GL_COLOR_BUFFER_BIT; //HACK
+
+/*
+==============
+Z_Draw
+==============
+*/
+void Z_Draw (void)
+{
+ brush_t *brush;
+ float w, h;
+ double start, end;
+ qtexture_t *q;
+ float top, bottom;
+ vec3_t org_top, org_bottom, dir_up, dir_down;
+ int xCam = z.width/3;
+
+ if (!active_brushes.next)
+ return; // not valid yet
+
+ if (z.timing)
+ start = Sys_DoubleTime ();
+
+ //
+ // clear
+ //
+ qglViewport(0, 0, z.width, z.height);
+
+ qglClearColor (
+ g_qeglobals.d_savedinfo.colors[COLOR_GRIDBACK][0],
+ g_qeglobals.d_savedinfo.colors[COLOR_GRIDBACK][1],
+ g_qeglobals.d_savedinfo.colors[COLOR_GRIDBACK][2],
+ 0);
+
+ /* GL Bug */
+ /* When not using hw acceleration, gl will fault if we clear the depth
+ buffer bit on the first pass. The hack fix is to set the GL_DEPTH_BUFFER_BIT
+ only after Z_Draw() has been called once. Yeah, right. */
+ qglClear(glbitClear);
+ glbitClear |= GL_DEPTH_BUFFER_BIT;
+
+ qglMatrixMode(GL_PROJECTION);
+
+ qglLoadIdentity ();
+ w = z.width/2 / z.scale;
+ h = z.height/2 / z.scale;
+ qglOrtho (-w, w, z.origin[2]-h, z.origin[2]+h, -8, 8);
+
+ qglDisable(GL_TEXTURE_2D);
+ qglDisable(GL_TEXTURE_1D);
+ qglDisable(GL_DEPTH_TEST);
+ qglDisable(GL_BLEND);
+
+
+ //
+ // now draw the grid
+ //
+ Z_DrawGrid ();
+
+ //
+ // draw stuff
+ //
+
+ qglDisable(GL_CULL_FACE);
+
+ qglShadeModel (GL_FLAT);
+
+ qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
+
+ qglDisable(GL_TEXTURE_2D);
+ qglDisable(GL_BLEND);
+ qglDisable(GL_DEPTH_TEST);
+
+
+ // draw filled interiors and edges
+ dir_up[0] = 0 ; dir_up[1] = 0; dir_up[2] = 1;
+ dir_down[0] = 0 ; dir_down[1] = 0; dir_down[2] = -1;
+ VectorCopy (z.origin, org_top);
+ org_top[2] = 4096;
+ VectorCopy (z.origin, org_bottom);
+ org_bottom[2] = -4096;
+
+ for (brush = active_brushes.next ; brush != &active_brushes ; brush=brush->next)
+ {
+ if (brush->mins[0] >= z.origin[0]
+ || brush->maxs[0] <= z.origin[0]
+ || brush->mins[1] >= z.origin[1]
+ || brush->maxs[1] <= z.origin[1])
+ continue;
+
+ if (!Brush_Ray (org_top, dir_down, brush, &top))
+ continue;
+ top = org_top[2] - top;
+ if (!Brush_Ray (org_bottom, dir_up, brush, &bottom))
+ continue;
+ bottom = org_bottom[2] + bottom;
+
+ q = Texture_ForName (brush->brush_faces->texdef.name);
+ qglColor3f (q->color[0], q->color[1], q->color[2]);
+ qglBegin (GL_QUADS);
+ qglVertex2f (-xCam, bottom);
+ qglVertex2f (xCam, bottom);
+ qglVertex2f (xCam, top);
+ qglVertex2f (-xCam, top);
+ qglEnd ();
+
+ qglColor3f (1,1,1);
+ qglBegin (GL_LINE_LOOP);
+ qglVertex2f (-xCam, bottom);
+ qglVertex2f (xCam, bottom);
+ qglVertex2f (xCam, top);
+ qglVertex2f (-xCam, top);
+ qglEnd ();
+ }
+
+ //
+ // now draw selected brushes
+ //
+ for (brush = selected_brushes.next ; brush != &selected_brushes ; brush=brush->next)
+ {
+ if ( !(brush->mins[0] >= z.origin[0]
+ || brush->maxs[0] <= z.origin[0]
+ || brush->mins[1] >= z.origin[1]
+ || brush->maxs[1] <= z.origin[1]) )
+ {
+ if (Brush_Ray (org_top, dir_down, brush, &top))
+ {
+ top = org_top[2] - top;
+ if (Brush_Ray (org_bottom, dir_up, brush, &bottom))
+ {
+ bottom = org_bottom[2] + bottom;
+
+ q = Texture_ForName (brush->brush_faces->texdef.name);
+ qglColor3f (q->color[0], q->color[1], q->color[2]);
+ qglBegin (GL_QUADS);
+ qglVertex2f (-xCam, bottom);
+ qglVertex2f (xCam, bottom);
+ qglVertex2f (xCam, top);
+ qglVertex2f (-xCam, top);
+ qglEnd ();
+ }
+ }
+ }
+
+ qglColor3fv(g_qeglobals.d_savedinfo.colors[COLOR_SELBRUSHES]);
+ qglBegin (GL_LINE_LOOP);
+ qglVertex2f (-xCam, brush->mins[2]);
+ qglVertex2f (xCam, brush->mins[2]);
+ qglVertex2f (xCam, brush->maxs[2]);
+ qglVertex2f (-xCam, brush->maxs[2]);
+ qglEnd ();
+ }
+
+
+ ZDrawCameraIcon ();
+
+ qglFinish();
+ QE_CheckOpenGLForErrors();
+
+ if (z.timing)
+ {
+ end = Sys_DoubleTime ();
+ Sys_Printf ("z: %i ms\n", (int)(1000*(end-start)));
+ }
+}
+
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