editor.c

   1 /*
   2    Cantaveria - action adventure platform game
   3    Copyright (C) 2009 2010 Evan Rinehart
   4
   5    This program is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU General Public License
   7    as published by the Free Software Foundation; either version 2
   8    of the License, or (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program; if not, write to
  17
  18    The Free Software Foundation, Inc.
  19    51 Franklin Street, Fifth Floor
  20    Boston, MA  02110-1301, USA
  21 */
  22
  23 #include <stdio.h>
  24
  25 #include "util.h"
  26 #include "backend.h"
  27 #include "graphics.h"
  28 #include "game.h"
  29
  30 #include "loader.h"
  31
  32 #include "text.h"
  33
  34
  35
  36 int cursor_x;
  37 int cursor_y;
  38 sprite* cursor;
  39
  40 int camera_x;
  41 int camera_y;
  42
  43 int screen_x;
  44 int screen_y;
  45
  46 struct {
  47   int flag;
  48   int key;
  49   int timer;
  50 } repeat;
  51
  52 int hold_fire;
  53 unsigned char brush_tile;
  54
  55
  56
  57 void press_fire(){
  58         //if screen exists change tile
  59         //else create new screen
  60         zone* z = game.current_zone;
  61         int si = game.si;
  62         int sj = game.sj;
  63         struct screen* scr = ZONE_LOOKUP(z,si,sj);
  64
  65         if(!scr){
  66                 scr = xmalloc(sizeof(struct screen));
  67                 z->screens[si+z->w*sj] = scr;
  68         }
  69
  70         scr->tiles[cursor_x-si*20][cursor_y-sj*15] = brush_tile;
  71
  72 }
  73
  74 void cursor_control(int key){
  75         switch(key){
  76                 case LEFT_KEY: cursor_x--; break;
  77                 case RIGHT_KEY: cursor_x++; break;
  78                 case UP_KEY: cursor_y--; break;
  79                 case DOWN_KEY: cursor_y++; break;
  80         }
  81
  82         if(cursor_x < 0){cursor_x = 0;}
  83         if(cursor_y < 0){cursor_y = 0;}
  84
  85         /*check for crossing a zone exit*/
  86
  87         if(cursor_x < camera_x){
  88                 camera_x--;
  89                 point_camera(camera_x*16, camera_y*16);
  90         }
  91         if(cursor_x >= camera_x+20){
  92                 camera_x++;
  93                 point_camera(camera_x*16, camera_y*16);
  94         }
  95         if(cursor_y < camera_y){
  96                 camera_y--;
  97                 point_camera(camera_x*16, camera_y*16);
  98         }
  99         if(cursor_y >= camera_y+15){
 100                 camera_y++;
 101                 point_camera(camera_x*16, camera_y*16);
 102         }
 103
 104         screen_x = cursor_x/20;
 105         screen_y = cursor_y/15;
 106         if(cursor_x < 0){screen_x--;}
 107         if(cursor_y < 0){screen_y--;}
 108         game.si = screen_x;
 109         game.sj = screen_y;
 110
 111         cursor->x = cursor_x*16;
 112         cursor->y = cursor_y*16;
 113
 114         if(hold_fire) press_fire();
 115 }
 116
 117
 118 void edit_keydown(int key){
 119
 120         if(key == ESCAPE_KEY){
 121                 end_program();
 122         }
 123
 124         switch(key){
 125                 case LEFT_KEY:
 126                 case RIGHT_KEY:
 127                 case UP_KEY:
 128                 case DOWN_KEY:
 129                         repeat.flag = 1;
 130                         repeat.key = key;
 131                         repeat.timer = 0;
 132                         cursor_control(key);
 133                         break;
 134                 case FIRE_KEY:
 135                         hold_fire = 1;
 136                         press_fire();
 137                         break;
 138                 case L_KEY:
 139                         brush_tile--;
 140                         break;
 141                 case R_KEY:
 142                         brush_tile++;
 143                         break;
 144         }
 145
 146 }
 147
 148 void edit_keyup(int key){
 149         if(key == repeat.key){
 150                 repeat.flag = 0;
 151         }
 152         if(key == FIRE_KEY) hold_fire = 0;
 153 }
 154
 155 void edit_joymovex(int joy, int x){
 156         printf("you moved joystick %d x axis to %d\n",joy,x);
 157 }
 158
 159 void edit_joymovey(int joy, int y){
 160         printf("you moved joystick %d y axis to %d\n",joy,y);
 161 }
 162
 163 void edit_joypress(int joy, int button){
 164         printf("you pressed joystick %d button %d\n",joy,button);
 165 }
 166
 167 void edit_joyrelease(int joy, int button){
 168         printf("you released joystick %d button %d\n",joy,button);
 169 }
 170
 171
 172 void edit_draw(){
 173         draw_stage();
 174         draw_sprites();
 175         printf_small(1,1,"zone: %s",game.zones[0]->name);
 176         printf_small(1,10,"screen: %d,%d",screen_x,screen_y);
 177         printf_small(1,19,"cursor: %d,%d",cursor_x,cursor_y);
 178         printf_small(1,28,"camera: %d,%d",camera_x,camera_y);
 179 }
 180
 181 struct handler edit_handler = {
 182         edit_keydown, edit_keyup, edit_joymovex,
 183         edit_joymovey, edit_joypress, edit_joyrelease
 184 };
 185
 186
 187
 188
 189 void main_init(int argc, char* argv[]){
 190         backend_init(argc, argv);
 191         loader_init();
 192         graphics_init();
 193         text_init();
 194
 195         game_setup();
 196
 197         set_handler(edit_handler);
 198         game.update = NULL;
 199         game.draw = edit_draw;
 200
 201         char** list = loader_readdir("zones");
 202         int i;
 203         for(i=0; list[i]; i++){
 204                 printf("loading zone \"%s\"\n",list[i]);
 205                 load_zone(list[i]);
 206         }
 207         loader_freedirlist(list);
 208
 209         /* dummy initialization */
 210         game.current_zone = game.zones[0];
 211
 212         enable_stage(1);
 213
 214         cursor_x = 0;
 215         cursor_y = 0;
 216         load_sprite("box.spr",SPR_BOX);
 217         cursor = enable_sprite(SPR_BOX);
 218
 219         camera_x = 0;
 220         camera_y = 0;
 221         point_camera(0,0);
 222
 223         hold_fire = 0;
 224 }
 225
 226
 227 void update(){
 228         if(repeat.flag){
 229                 repeat.timer++;
 230                 if(repeat.timer > 40){
 231                         repeat.timer = 38;
 232                         cursor_control(repeat.key);
 233                 }
 234         }
 235 }
 236
 237
 238
 239
 240 void main_quit(){
 241         loader_quit();
 242         backend_quit();
 243 }
 244
 245 void main_loop(){
 246         since();
 247         int i;
 248         int T = 0;
 249         while(1){
 250                 T += since();
 251                 for(i=0; i<T/dt; i++){
 252                         input();
 253                         update();
 254                 }
 255                 if(T/dt > 0){
 256                         draw();
 257                         T %= dt;
 258                 }
 259                 if(ended()){break;}
 260                 delay(DELAY_AMOUNT);
 261         }
 262 }
 263
 264 int main(int argc, char* argv[]){
 265         main_init(argc, argv);
 266         main_loop();
 267         main_quit();
 268         return 0;
 269 }
 270