summaryrefslogtreecommitdiff
path: root/src/iso/world_view.c
blob: 0a4b47fecfef98f60aae114e7b45816ad9076e3d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
/* world_view.c
 *
 * Copyright (c) 2001, 2002 Hansj�rg Malthaner
 * hansjoerg.malthaner@gmx.de
 *
 * This file is part of the Simugraph<->Angband adaption code.
 *
 *
 * This file may be copied and modified freely so long as the above credits,
 * this paragraph, and the below disclaimer of warranty are retained; no
 * financial profit is derived from said modification or copying; and all
 * licensing rights to any modifications are granted to the original author,
 * Hansj�rg Malthaner.
 *
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 */

#include <stdio.h>
#include "simgraph.h" 
#include "world_view.h" 
#include "world_adaptor.h" 

//#include "walls4.h"
#include "walls9.h"

#include "hackdef.h"


#undef MIN
#undef MAX


#include "../angband.h"
#include "../defines.h"


/* from isov-x11.c */
extern unsigned char **iso_ap;
extern unsigned char **iso_cp;
extern unsigned char **iso_atp;
extern unsigned char **iso_ctp;
# ifdef USE_EGO_GRAPHICS
extern unsigned char **iso_aep;
extern unsigned char **iso_cep;
# endif /* USE_EGO_GRAPHICS */


#ifdef USE_SMALL_ISO_HACK

static bool is_valid_position(int x, int y) {
  return x >= 0 && y >= 0 && x<cur_wid && y<cur_hgt;
}                             

static bool is_valid_to_show(int x, int y) {
  return is_valid_position(x, y);
}

static int get_feat_nc(int x, int y)
{
  /* this is for Angabdn 2.9.1
     return cave_feat[y][x];     
  */
  
  /* Pernangband 4.1.5 */
  cave_type *c_ptr;
  
  /* Get the cave */
  c_ptr = &cave[y][x];
  
  
  /* Feature code */
  return c_ptr->feat;
}


static int get_feat_wc(int x, int y)
{
  if(is_valid_position(x,y)) {
    return get_feat_nc(x,y);
  } else {
    return FEAT_PERM_SOLID;
  }
}


static int get_info_nc(int x, int y)
{
  /* this is for Angabdn 2.9.1
     return cave_info[y][x];     
  */
  
  /* Pernangband 4.1.5 */
  cave_type *c_ptr;
  
  /* Get the cave */
  c_ptr = &cave[y][x];
  
  
  /* Info code */
  return c_ptr->info;
}


static int get_info_wc(int x, int y)
{
  if(is_valid_position(x,y)) {
    return get_info_nc(x,y);
  } else {
    return 0;
  }
}


static bool is_door(int feat)
{
  return 
    (feat == FEAT_OPEN) ||
    (feat == FEAT_BROKEN) ||
    (feat == FEAT_SECRET) ||
    (feat >= FEAT_DOOR_HEAD &&  feat <= FEAT_DOOR_TAIL) ||
    (feat == FEAT_SHOP);
}


static bool is_wall(int feat)
{
  return 
    (feat >= FEAT_MAGMA &&  feat <= FEAT_PERM_SOLID) || 
    (feat >= FEAT_TREES &&  feat <= FEAT_SANDWALL_K) ||
    (feat >= FEAT_QUEST1 && feat <= FEAT_QUEST4);
}


static int is_wall_or_door(int x, int y)
{           
  const int feat = get_feat_wc(x, y);
  
  return is_door(feat) || is_wall(feat);
}


static bool is_lit(int x, int y)
{
  const int info = get_info_wc(x, y);
  
  return (info & CAVE_GLOW) && (info & CAVE_VIEW) && (info & CAVE_MARK);
}


static bool is_torch_lit(int x, int y)
{
  const int info = get_info_wc(x, y);
  
  return (info & CAVE_PLIT) && (info & CAVE_VIEW) && (info & CAVE_MARK);
}


static bool is_only_torch_lit(int x, int y)
{
  return is_torch_lit(x, y) & !is_lit(x, y);
}


static bool is_blind()
{
  // PernAngband variant
  return p_ptr->blind;
}


/**
 * Calculates distance from player to point (x,y).
 * Uses the distance guess from cave.c
 * @author Hj. Malthaner
 */
static int get_distance_to_player(int x, int y)
{                                
  return distance(y, x, p_ptr->py, p_ptr->px);
}

#else


static int iso_access(unsigned char **field, int x, int y)
{
  if(x >= 0 && y >= 0 && x<80 && y<24) {
    return field[y][x] & 0x7f;
  } else {
    return 0;
  }                       
}

static int is_wall_or_door(int x, int y)
{           
  const int atp = iso_access(iso_atp, x, y);
  const int ctp = iso_access(iso_ctp, x, y);
  
  return (atp == 0x01 && (ctp >= 0x70 && ctp <= 0x75)) ||
    (atp == 0x00  && (ctp =='+' || ctp == '\'')) ;
}

#endif


/**
 * Draw ground of location i,j onto screen position xpos,ypos
 * @author Hj. Malthaner
 */
void display_boden(int x, int y, int xpos, int ypos)
{
  // unused in Iso-Angband
}


static int check_wall(int x, int y) 
{
  
  int o = 0;

#if 0
  o |= (is_wall_or_door(x-1, y-1)) << 0;
  o |= (is_wall_or_door(x  , y-1)) << 1;
  o |= (is_wall_or_door(x+1, y-1)) << 2;
  o |= (is_wall_or_door(x-1, y  )) << 3;
  o |= (is_wall_or_door(x+1, y  )) << 4;
  o |= (is_wall_or_door(x-1, y+1)) << 5;
  o |= (is_wall_or_door(x  , y+1)) << 6;
  o |= (is_wall_or_door(x+1, y+1)) << 7;
  
  
  return wall_table[o];
#endif
  // jue: new algorithm as suggested by James Andrewartha
  //
  o |= (is_wall_or_door(x-1, y-1) 
          && is_wall_or_door(x, y-1)
          && is_wall_or_door(x-1,y))  << 0;

  o |= (is_wall_or_door(x  , y-1))    << 1;
  
  o |= (is_wall_or_door(x+1, y-1)
	  && is_wall_or_door(x, y-1)
	  && is_wall_or_door(x+1, y)) << 2;
  
  o |= (is_wall_or_door(x-1, y  ))    << 3;
  
  o |= (is_wall_or_door(x+1, y  ))    << 4;
  
  o |= (is_wall_or_door(x-1, y+1)
	  && is_wall_or_door(x-1, y)
	  && is_wall_or_door(x, y+1)) << 5;
  
  o |= (is_wall_or_door(x  , y+1))    << 6;
  
  o |= (is_wall_or_door(x+1, y+1)
	  && is_wall_or_door(x+1, y)
	  && is_wall_or_door(x, y+1)) << 7;
  
  return o;
}


static int door_direction(int x, int y)
{                 
  if(is_wall_or_door(x-1, y) && is_wall_or_door(x+1, y)) {
    return 1;
  } else {
    return 0;
  }
}

static int calc_nc(int c, int a)
{
  return ((a & 0x7F) << 7) + (c & 0x7F);
}


/**
 * Draw objects of location i,j onto screen position xpos,ypos
 * @author Hj. Malthaner
 */
void display_dinge(int x, int y, int xpos, int ypos)
{
  const int grid = get_grid();

  int feat_nc = -1;
  int obj_nc = -1;
#ifdef USE_EGO_GRAPHICS
  int ego_nc = -1;
#endif
  
  int shade;
  int i;

  // relative to view position
//  int xoff = x - p_ptr->px + (SCREEN_WID/2 + 13);
//  int xoff = x - p_ptr->px + (SCREEN_WID/2 + 13);
//
//  new (jue):
//  look at cave.c, panel_col_of and the places it's used...
  int xoff = x - panel_col_min + COL_MAP;
  int yoff = y - panel_row_prt;

  // try to use output of the term package
  if(xoff >= 0 && yoff >= 1 && xoff < 80 && yoff < 23) {
    // floor, walls
    
    const int c = iso_cp[yoff][xoff];
    const int a = iso_ap[yoff][xoff];
    
    // object/monster
    const int tc = iso_ctp[yoff][xoff];
    const int ta = iso_atp[yoff][xoff];

#ifdef USE_EGO_GRAPHICS
    // transparent overlay 
    const int ec = iso_cep[yoff][xoff];
    const int ea = iso_aep[yoff][xoff];
    
    ego_nc = calc_nc(ec, ea);
#endif
    feat_nc = calc_nc(tc, ta);
    obj_nc = calc_nc(c, a);

  } else {
    // outside 80x24 view, try to read map

    if(is_valid_to_show(x,y)) {
      
      byte a, ta;
      char c, tc;
#ifdef USE_EGO_GRAPHICS
      byte ea;
      char ec;

      map_info(y, x, &a, &c, &ta, &tc, &ea, &ec);
      ego_nc = calc_nc(ec, ea);
#else
      map_info(y, x, &a, &c, &ta, &tc);
#endif
      feat_nc = calc_nc(tc, ta);
      obj_nc = calc_nc(c, a);
    } 

  }



  shade = 1;
      
  if(is_lit(x, y)) {
    shade = 2;
  } else if(is_torch_lit(x, y)) {
    shade = 0;
  }

  
  // did we get some data ?
  if(feat_nc != -1) {
    
    // check shading
    //	printf("%d %d -> %d\n", x, y, shade);
    
    if(feat_nc >= 240 &&  feat_nc <= 245) {
      // old shading
      //	    const int shade = (feat_nc-240);
      const int set_base = 240+shade*9;
      const int bits = check_wall(x, y);
      
      
      display_img(316+(shade%3), xpos, ypos, TRUE);
      
      if(bits) {
	for(i=0; i<4; i++) {
	  if(bits & (1 << i)) {
	    display_img(set_base+i, xpos, ypos, TRUE);
	  }
	}                         
	
	display_img(set_base+8, xpos, ypos, TRUE);
	
	for(i=4; i<8; i++) {
	  if(bits & (1 << i)) {
	    display_img(set_base+i, xpos, ypos, TRUE);
	  }
	}                         
	
      } else {
	// a pillar 
	display_img(set_base+8, xpos, ypos, TRUE);
      }
      
      // fields with walls never contain anything else
      // so we can quit now
      return;
      
    } else if(feat_nc == 0x27) {
      // open doors   
      display_img(138+door_direction(x,y), xpos, ypos, TRUE);
      
      
    } else if(feat_nc == 0x2B) {
      // closed doors
      display_img(136+door_direction(x,y), xpos, ypos, TRUE);
      
    } else if(feat_nc == 0x8C ||	    // a between gate
	      feat_nc == 0x20 ||	    // empty square
	      feat_nc == 0x16E ||	    // brick roof
	      feat_nc == 0x16F ||	    // brick roof top
	      feat_nc == 0x176 ||	    // grass roof
	      feat_nc == 0x177 ||	    // grass roof chimney
	      feat_nc == 0x17E ||	    // grass roof top
	      (feat_nc >= 0x31 && feat_nc <= 0x39) || // shop with number
	      (feat_nc >= 0x576 && feat_nc <= 0x57D) || // trap
	      feat_nc == 0x3E ||	    // down stairs
	      feat_nc == 0x3C	    // up stairs
    ) {
      // this features should not be shaded
      
      display_img(feat_nc, xpos, ypos, TRUE);
      
    } else if(feat_nc > 2){             
      // this features should be shaded  
          
      // floor
      // known grids get shaded floors
      if(is_only_torch_lit(x,y)) {
	display_color_img(feat_nc+2, 
			  xpos, ypos, 
			  get_distance_to_player(x, y) << 1,
			  TRUE);
      } else {
	display_img(feat_nc+shade, xpos, ypos, TRUE);
      }               
    }
    
    //	printf("%d a=%x c=%x (%c)\n", nc, a, c, c);
  
    /* Hajo: display a complete grid if the user wants to */
    if(grid == 2) {
	display_img(6, xpos, ypos, TRUE);
    }


#ifdef USE_EGO_GRAPHICS   
    if( ego_nc != feat_nc &&
	ego_nc > 2 &&
	ego_nc != 0x27 &&
	ego_nc != 0x2B ) {

	display_img(ego_nc, xpos, ypos, TRUE);
    }
#endif
    
    if( obj_nc != feat_nc &&
	obj_nc > 2 &&
	obj_nc != 0x27 &&
	obj_nc != 0x2B ) {

	/* Hajo: display a grid below items/monsters if the user wants to */
	if(grid == 1) {
	    display_img(5, xpos, ypos, TRUE);
	}
	
	display_img(obj_nc, xpos, ypos, TRUE);

    }
  } else {
    
    // outside of dungeon
    display_img(32, xpos, ypos, TRUE);
  }  

  /* display cursor ? */
  if( 
      high_x >= 1 &&
      high_y >= 1) {
      if(xoff == high_x && 
	  yoff == high_y) {
        display_img(7, xpos, ypos, TRUE);

	/* only draw once, wait until next request */
	high_x = high_y = -1;
    }
  }
}