//-------------------------------------------------------------------------
/*
Copyright (C) 1997, 2005 - 3D Realms Entertainment

This file is part of Shadow Warrior version 1.2

Shadow Warrior 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.

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, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

Original Source: 1997 - Frank Maddin and Jim Norwood
Prepared for public release: 03/28/2005 - Charlie Wiederhold, 3D Realms
*/
//-------------------------------------------------------------------------
#include "build.h"

#include "keys.h"
#include "names2.h"
#include "panel.h"
#include "lists.h"
#include "game.h"
#include "common_game.h"
#include "network.h"
#include "text.h"

#define BAR_HEIGHT 48
#define XDIM 320
#define YDIM 200

short DebugBorderShade = 0;

short RegBorderTest[] =
{
    51, 53, 127, 128, 140, 145, 152, 197, 198, 201, 205, 206, 213, 218, 242, 243,
    245, 246, 247, 257, 2560, 2561, 2562, 2570, 2571, 2572, 2573, 2576, 2578,
    2579, 2580, 2581, 2582, 2583, 2584, 2585, 2593, 2594
};
short SWBorderTest[] =
{
    51, 53, 127, 128, 140, 145, 201, 205, 206, 213, 218,
    245, 2560, 2573, 2576, 2580, 2581, 2582, 2583, 2584, 2593
};

#undef BORDER_TILE
#define BORDER_TILE \
    (isShareware ? \
     SWBorderTest[gs.BorderTile % SIZ(SWBorderTest)] : \
     RegBorderTest[gs.BorderTile % SIZ(RegBorderTest)] \
    )

#define f_320 FIXED(320,0)
#define f_200 FIXED(200,0)

#define X_TO_FIXED(val) (x_aspect_mul*(val))
#define Y_TO_FIXED(val) (y_aspect_mul*(val))

SWBOOL RedrawScreen = FALSE;

int f_xdim, f_ydim, x_pix_size, y_pix_size, x_aspect_mul, y_aspect_mul;
int CrosshairX, CrosshairY;

extern SWBOOL BorderAdjust;
SWBOOL GlobSpriteBoxUpdateEveryFrame = FALSE;

PANEL_SPRITEp
pSpawnFullScreenSpriteBox(PLAYERp pp, short id, short pic, short pri, int x, int y, short x1, short y1, short x2, short y2)
{
    PANEL_SPRITEp psp;
    extern SWBOOL DrawBeforeView;

    psp = pSpawnSprite(pp, NULL, pri, x, y);

    psp->ID = id;
    psp->numpages = numpages;
    if (GlobSpriteBoxUpdateEveryFrame)
    {
        psp->numpages = 1;
    }
    psp->picndx = -1;
    psp->picnum = pic;
    psp->x1 = x1;
    psp->y1 = y1;
    psp->x2 = x2;
    psp->y2 = y2;
    psp->shade = DebugBorderShade;

    //SET(psp->flags, PANF_STATUS_AREA | PANF_KILL_AFTER_SHOW | PANF_IGNORE_START_MOST  | PANF_DRAW_BEFORE_VIEW | PANF_NOT_ALL_PAGES);
    SET(psp->flags, PANF_STATUS_AREA | PANF_KILL_AFTER_SHOW | PANF_IGNORE_START_MOST | PANF_DRAW_BEFORE_VIEW);
    //DrawBeforeView = TRUE;

    //SET(psp->flags, PANF_SCREEN_CLIP | PANF_KILL_AFTER_SHOW | PANF_IGNORE_START_MOST);

    return psp;
}

void SetCrosshair(void)
{
    int wdx,wdy,x,y;

    wdx = ((windowxy2.x-windowxy1.x)/2);
    wdy = ((windowxy2.y-windowxy1.y)/2);
    x = windowxy1.x + wdx;
    y = windowxy1.y + wdy;

    CrosshairX = x / (xdim/320.0);
    CrosshairY = y / (ydim/200.0);

    // rotatesprite takes FIXED point number
    CrosshairX <<= 16;
    CrosshairY <<= 16;
}


void
SetupAspectRatio(void)
{
    f_xdim = FIXED(xdim, 0);
    f_ydim = FIXED(ydim, 0);

    x_pix_size = (f_320 / xdim);
    y_pix_size = (f_200 / ydim);

    x_aspect_mul = (f_xdim / 320);
    y_aspect_mul = (f_ydim / 200);
}

void
SetConsoleDmost(void)
{
    int ystart;
    int xstart;

    int i;
    int adj=0;

    // dont setup the startumost/dmost arrays if border is 0
    if (gs.BorderNum == BORDER_NONE || gs.BorderNum == BORDER_MINI_BAR)
        return;

    //
    // Set the whole thing to the size of the bar
    //

    ystart = f_ydim - Y_TO_FIXED(BAR_HEIGHT);

    if (ydim == 480 && gs.BorderNum == 2)
        adj = 1;

    //for (i = FIXED(0, 0); i < f_320; i += x_pix_size)
    for (i = 0; i < xdim; i++)
    // define picture
    // boundaries
    {
        startdmost[i] = MSW(ystart) + adj;
    }
}

void ClearStartMost(void)
{
    int i;

    for (i = 0; i < xdim; i++)
        startdmost[i] = ydim;

    memset(startumost, 0, xdim * sizeof(int16_t));
}

void
SetFragBar(PLAYERp pp)
{
    short i, num_frag_bars;
    int y;
    extern int16_t OrigCommPlayers;

    if (numplayers <= 1)
        return;

    if (gNet.MultiGameType == MULTI_GAME_COOPERATIVE)
        return;

    // if player sprite has not been initialized we have no business
    // sticking a frag bar up.  Prevents processing from MenuLevel etc.
    if (!pp->SpriteP)
        return;

    //num_frag_bars = ((numplayers-1)/4)+1;
    num_frag_bars = ((OrigCommPlayers-1)/4)+1;

    for (i = windowxy1.x; i <= windowxy2.x; i++)
    {
        y = (tilesiz[FRAG_BAR].y * num_frag_bars) - (2 * (num_frag_bars-1));
        y = y * (ydim/200.0);

        if (windowxy1.y < y)
            startumost[i] = y;
    }

    for (i = 0, y = 0; i < num_frag_bars; i++)
    {
        pSpawnFullScreenSprite(pp, FRAG_BAR, PRI_MID, 0, y);
        y += tilesiz[FRAG_BAR].y - 2;
    }

    // write each persons kill info to everybody
    // for (i = 0; i < numplayers; i++)
    TRAVERSE_CONNECT(i)
    {
        PlayerUpdateKills(Player + i, 0);
        DisplayFragNames(Player + i);
    }
}

SWBOOL RectOverlap(short tx1, short ty1, short bx1, short by1, short tx2, short ty2, short bx2, short by2)
{
    if (bx1 >= tx2)
        if (tx1 <= bx2)
            if (ty1 <= by2)
                if (by1 >= ty2)
                    return TRUE;

    return FALSE;
}

void DrawBorderShade(PLAYERp pp, short shade_num, short wx1, short wy1, short wx2, short wy2)
{
    short i,j,k,l;
    PANEL_SPRITEp psp;
    int dark_shade = 27 - (shade_num * 6);
    int light_shade = 20 - (shade_num * 6);

    for (i = 0; i < xdim; i += tilesiz[BORDER_TILE].x)
    {
        for (j = 0; j < ydim; j += tilesiz[BORDER_TILE].y)
        {
            k = i + tilesiz[BORDER_TILE].x;
            l = j + tilesiz[BORDER_TILE].y;

            if (RectOverlap(i, j, k, l, wx1 - 1, wy1 - 1, wx2 + 1, wy1))
            {
                // draw top box of the border
                psp = pSpawnFullScreenSpriteBox(pp, ID_BORDER_TOP, BORDER_TILE, PRI_BACK + 1, i, j, wx1 - 1, wy1 - 1, wx2 + 1, wy1);
                psp->shade = dark_shade;
                psp->ID = ID_BORDER_SHADE;
            }

            if (RectOverlap(i, j, k, l, wx1 - 1, wy2, wx2 + 1, wy2 + 1))
            {
                // draw bottom box of the border
                psp = pSpawnFullScreenSpriteBox(pp, ID_BORDER_BOTTOM, BORDER_TILE, PRI_BACK + 1, i, j, wx1 - 1, wy2, wx2 + 1, wy2 + 1);
                psp->shade = light_shade;
                psp->ID = ID_BORDER_SHADE;
            }
            if (RectOverlap(i, j, k, l, wx1 - 1, wy1 - 1, wx1, wy2 + 1))
            {
                // draw left box of the border
                psp = pSpawnFullScreenSpriteBox(pp, ID_BORDER_LEFT, BORDER_TILE, PRI_BACK + 1, i, j, wx1 - 1, wy1 - 1, wx1, wy2 + 1);
                psp->shade = dark_shade;
                psp->ID = ID_BORDER_SHADE;
            }
            if (RectOverlap(i, j, k, l, wx2, wy1 - 1, wx2 + 1, wy2 + 1))
            {
                // draw right box of the border
                psp = pSpawnFullScreenSpriteBox(pp, ID_BORDER_RIGHT, BORDER_TILE, PRI_BACK + 1, i, j, wx2, wy1 - 1, wx2 + 1, wy2 + 1);
                psp->shade = light_shade;
                psp->ID = ID_BORDER_SHADE;
            }
        }
    }
}

void
BorderShade(PLAYERp pp, SWBOOL refresh)
{
    int i, j, k, l, wx1, wx2, wy1, wy2;
    PANEL_SPRITEp psp;
    uint8_t lines;

    wx1 = windowxy1.x - 1;
    wy1 = windowxy1.y - 1;
    wx2 = windowxy2.x + 1;
    wy2 = windowxy2.y + 1;

    for (lines = 0; lines < 4; lines++)
    {

        // make sure that these values dont go out of bound - which they do
        wx1 = max(wx1, 0);
        wx2 = min(wx2, xdim - 1);
        wy1 = max(wy1, 0);

        if (refresh)
        {
            // silly thing seems off by 1
            wy2 = min(wy2, ydim - (Y_TO_FIXED(BAR_HEIGHT) >> 16) - 2);
        }
        else
        {
            if (gs.BorderNum >= BORDER_BAR+1 && gs.BorderNum <= BORDER_BAR+2)
                wy2 = min(wy2, ydim - 1);
            else
                wy2 = min(wy2, ydim - (Y_TO_FIXED(BAR_HEIGHT) >> 16) - 1);
        }

        DrawBorderShade(pp, lines, wx1, wy1, wx2, wy2);
        // increase view size by one - dont do a set view though
        wx1--;
        wy1--;
        wx2++;
        wy2++;
    }
}


BORDER_INFO BorderInfoValues[] =
{
    // x,y,screensize
    {0, 0, 0},
    {0, 0, 0},
    {0, BAR_HEIGHT, 0},

    {0, BAR_HEIGHT, (1 * 16)},
    {0, BAR_HEIGHT, (2 * 16)},
    {0, BAR_HEIGHT, (3 * 16)},
    {0, BAR_HEIGHT, (4 * 16)},
    {0, BAR_HEIGHT, (5 * 16)},
    {0, BAR_HEIGHT, (6 * 16)},
    {0, BAR_HEIGHT, (7 * 16)},
    {0, BAR_HEIGHT, (8 * 16)},
    {0, BAR_HEIGHT, (9 * 16)},
    {0, BAR_HEIGHT, (10 * 16)},
    {0, BAR_HEIGHT, (11 * 16)},
    {0, BAR_HEIGHT, (12 * 16)}
};


void DrawBorder(PLAYERp pp, short x, short y, short x2, short y2)
{
    short i,j,k,l;
    short count = 0;

    for (i = 0; i < xdim; i += tilesiz[BORDER_TILE].x)
    {
        for (j = 0; j < ydim; j += tilesiz[BORDER_TILE].y)
        {
            k = i + tilesiz[BORDER_TILE].x;
            l = j + tilesiz[BORDER_TILE].y;

            if (RectOverlap(i, j, k, l, x, y, windowxy1.x-1, y2))
            {
                // draw top box of the border
                pSpawnFullScreenSpriteBox(pp, ID_BORDER_TOP, BORDER_TILE, PRI_BACK, i, j, x, y, windowxy1.x-1, y2);
                count++;
            }

            if (RectOverlap(i, j, k, l, windowxy2.x+1, y, x2, y2))
            {
                // draw bottom box of the border
                pSpawnFullScreenSpriteBox(pp, ID_BORDER_BOTTOM, BORDER_TILE, PRI_BACK, i, j, windowxy2.x+1, y, x2, y2);
                count++;
            }

            if (RectOverlap(i, j, k, l, windowxy1.x, y, windowxy2.x, windowxy1.y-1))
            {
                // draw left box of the border
                pSpawnFullScreenSpriteBox(pp, ID_BORDER_LEFT, BORDER_TILE, PRI_BACK, i, j, windowxy1.x, y, windowxy2.x, windowxy1.y-1);
                count++;
            }

            if (RectOverlap(i, j, k, l, windowxy1.x, windowxy2.y+1, windowxy2.x, y2))
            {
                // draw right box of the border
                pSpawnFullScreenSpriteBox(pp, ID_BORDER_RIGHT, BORDER_TILE, PRI_BACK, i, j, windowxy1.x, windowxy2.y+1, windowxy2.x, y2);
                count++;
            }
        }
    }
}

void DrawPanelBorderSides(PLAYERp pp, short x, short y, short x2, short y2, short panl, short panr)
{
    short i,j,k,l;
    short count = 0;

    for (i = 0; i < xdim; i += tilesiz[BORDER_TILE].x)
    {
        for (j = 0; j < ydim; j += tilesiz[BORDER_TILE].y)
        {
            k = i + tilesiz[BORDER_TILE].x;
            l = j + tilesiz[BORDER_TILE].y;

            if (RectOverlap(i, j, k, l, x, y, panl, y2))
            {
                pSpawnFullScreenSpriteBox(pp, ID_PANEL_BORDER_LEFT, BORDER_TILE, PRI_BACK, i, j, x, y, panl, y2);
                count++;
            }

            if (RectOverlap(i, j, k, l, panr, y, x2, y2))
            {
                pSpawnFullScreenSpriteBox(pp, ID_PANEL_BORDER_RIGHT, BORDER_TILE, PRI_BACK, i, j, panr, y, x2, y2);
                count++;
            }
        }
    }
}

static
void BorderSetView(PLAYERp UNUSED(pp), int *Xdim, int *Ydim, int *ScreenSize)
{
    int x, x2, y, y2;
    BORDER_INFO *b;

    BorderInfo = BorderInfoValues[gs.BorderNum];

    b = &BorderInfo;

    // figure out the viewing window x and y dimensions
    *Xdim = MSW(f_xdim - X_TO_FIXED(b->Xdim));
    *Ydim = MSW(f_ydim - Y_TO_FIXED(b->Ydim));
    *ScreenSize = MSW(f_xdim - X_TO_FIXED(b->ScreenSize));

    // figure out the viewing window x and y coordinates
    x = DIV2(*Xdim) - DIV2(*ScreenSize);
    x2 = x + *ScreenSize - 1;
    y = DIV2(*Ydim) - DIV2((*ScreenSize **Ydim) / *Xdim);
    y2 = y + ((*ScreenSize **Ydim) / *Xdim) - 1;

    if (ydim == 480 && gs.BorderNum == 2)
    {
        y2+=2;
    }

    // global windowxy1, windowxy2 coords set here
    videoSetViewableArea(x, y, x2, y2);
    SetCrosshair();
}

//
// Redraw the border without changing the view
//

static void
BorderRefresh(PLAYERp pp)
{
    int i, j;
    int x, x2, y, y2;
    BORDER_INFO *b;

    if (pp != Player + myconnectindex)
        return;

    if (!BorderAdjust)
        return;

    if (gs.BorderNum < BORDER_BAR)
        return;

    // Redraw the BORDER_TILE only if getting smaller
    BorderInfo = BorderInfoValues[gs.BorderNum];

    b = &BorderInfo;

    // A refresh does not change the view size so we dont need to do a
    // setview
    // We don't need the calculations for the border drawing boxes - its
    // the whole screen
    // minus the border if necessary

    // fill in the sides of the panel when the screen is wide
    if (gs.BorderNum >= BORDER_BAR && r_usenewaspect)
    {
        const int sidew = (xdim - scale(4, ydim, 3)) / 2;

        x = 0;
        x2 = xdim - 1;

        y = ydim - (Y_TO_FIXED(b->Ydim) >> 16);
        y2 = ydim - 1;

        DrawPanelBorderSides(pp, x, y, x2, y2, sidew, xdim-sidew);
    }

    // only need a border if border is > BORDER_BAR
    if (gs.BorderNum > BORDER_BAR)
    {
        // make sure that these values dont go out of bound - which they do
        x = 0;
        x2 = xdim - 1;

        y = 0;
        y2 = ydim - (Y_TO_FIXED(b->Ydim) >> 16) - 1;

        DrawBorder(pp, x, y, x2, y2);

        // kill ALL outstanding (not yet drawn) border shade sprites before
        // doing more shading
        pKillScreenSpiteIDs(pp, ID_BORDER_SHADE);

        BorderShade(pp, TRUE);
    }
}

//
// Redraw the whole screen
//

void SetBorder(PLAYERp pp, int value)
{
    int diff;
    int Xdim, Ydim, ScreenSize;
    SWBOOL set_view = TRUE;

    if (pp != Player + myconnectindex)
        return;

    if (!BorderAdjust)
        return;

    if (value >= 0) // just refresh
        gs.BorderNum = value;

    if (gs.BorderNum < BORDER_NONE)
    {
        gs.BorderNum = BORDER_NONE;
        //return;
    }

    if (gs.BorderNum > (int)SIZ(BorderInfoValues) - 1)
    {
        gs.BorderNum = SIZ(BorderInfoValues) - 1;
        return;
    }

    BorderSetView(pp, &Xdim, &Ydim, &ScreenSize);

    if (gs.BorderNum >= BORDER_BAR)
    {
        BorderRefresh(pp);

        if (gs.BorderNum == BORDER_BAR)
            SetConsoleDmost();

        pSpawnFullScreenSprite(pp, STATUS_BAR, PRI_FRONT, 0, 200 - tilesiz[STATUS_BAR].y);
        PlayerUpdatePanelInfo(Player + screenpeek);
    }

    SetFragBar(pp);
}

void
SetRedrawScreen(PLAYERp pp)
{
    int i, j;
    //int x, x2, y, y2;
    BORDER_INFO *b;

    if (pp != Player + myconnectindex)
        return;

    if (!BorderAdjust)
        return;

    if (gs.BorderNum < BORDER_NONE)
        gs.BorderNum = BORDER_NONE;

    // Redraw the BORDER_TILE only if getting smaller
    BorderInfo = BorderInfoValues[gs.BorderNum];

    b = &BorderInfo;

    // test at redrawing the whole screen
    RedrawScreen = TRUE;
}