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authorJeffrey Armstrong <jeff@approximatrix.com>2020-02-14 00:17:01 -0500
committerJeffrey Armstrong <jeff@approximatrix.com>2020-02-14 00:17:01 -0500
commit083882b9fe415e5d33b4562bcf8abb973d0b8353 (patch)
tree932d7d95749b5fdeae6279666baad140835d81a5
downloadgemworm-083882b9fe415e5d33b4562bcf8abb973d0b8353.zip
gemworm-083882b9fe415e5d33b4562bcf8abb973d0b8353.tar.gz
Initial import of original code
-rw-r--r--field.c245
-rw-r--r--field.h48
-rw-r--r--license.txt619
-rw-r--r--makefile18
-rw-r--r--makefile.gnu21
-rw-r--r--player.c148
-rw-r--r--player.h54
-rw-r--r--readme.txt71
-rw-r--r--worm.c434
-rw-r--r--worm.prj16
-rw-r--r--wormpc.h8
-rw-r--r--wormpc.rscbin0 -> 1186 bytes
-rw-r--r--wormst.h9
-rw-r--r--wormst.hrdbin0 -> 100 bytes
-rw-r--r--wormst.rscbin0 -> 1228 bytes
15 files changed, 1691 insertions, 0 deletions
diff --git a/field.c b/field.c
new file mode 100644
index 0000000..b53dcdf
--- /dev/null
+++ b/field.c
@@ -0,0 +1,245 @@
+/* GEM Worm
+ * Copyright (C) 2009 Jeffrey Armstrong
+ * http://jeff.rainbow-100.com
+ *
+ * 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/>.
+ *
+ * A full version of the license terms is available in LICENSE.txt.
+ */
+
+#include <stdio.h>
+
+#include <portab.h>
+#include <aes.h>
+#include <vdi.h>
+
+#include "field.h"
+#include "player.h"
+
+/* Defines the play field */
+char field[CELLW][CELLH];
+
+#define CELLBLANK 0
+#define CELLPLAYER 1
+#define CELLWALL 2
+#define CELLFOOD 3
+
+#define max(x,y) x>y ? x : y
+#define min(x,y) x<y ? x : y
+
+#define FOODRESETCOUNT 30
+
+struct _food{
+ WORD c_x;
+ WORD c_y;
+ int count;
+} food;
+
+void empty_field(char celltype)
+{
+char i,j;
+
+ for(i=0;i<CELLW-1;i++) {
+ for(j=0;j<CELLH-1;j++) {
+ if(field[i][j] == celltype)
+ field[i][j] = CELLBLANK;
+ }
+ }
+
+}
+
+void food_reset()
+{
+
+ field[food.c_x][food.c_y] = CELLBLANK;
+ food.c_x = rand() % CELLW;
+ food.c_y = rand() % CELLH;
+ while(field[food.c_x][food.c_y] != CELLBLANK) {
+ food.c_x = rand() % CELLW;
+ food.c_y = rand() % CELLH;
+ }
+ food.count = 0;
+ field[food.c_x][food.c_y] = CELLFOOD;
+}
+
+void food_init()
+{
+ food.c_x = 10;
+ food.c_y = 10;
+ food_reset();
+ field[food.c_x][food.c_y] = CELLFOOD;
+}
+
+int food_check(WORD h_vdi, GRECT *play, WPLAYER *player)
+{
+int oldx,oldy;
+
+ if(player->head->c_x == food.c_x && player->head->c_y == food.c_y) {
+ player->grow += FOODADDITION;
+ oldx = food.c_x; oldy = food.c_y;
+ food_reset();
+ incremental_draw(h_vdi, play, food.c_x, food.c_y);
+ field[oldx][oldy] = CELLPLAYER;
+ return FOODADDITION;
+ }
+
+ food.count++;
+ if(food.count > FOODRESETCOUNT) {
+ oldx = food.c_x; oldy = food.c_y;
+ food_reset();
+ incremental_draw(h_vdi, play, food.c_x, food.c_y);
+ incremental_draw(h_vdi, play, oldx, oldy);
+ }
+ return 0;
+}
+
+void field_init()
+{
+char i,j;
+
+ for(j=0;j<CELLH;j++) {
+ field[0][j] = CELLWALL;
+ field[CELLW-1][j] = CELLWALL;
+ }
+
+ for(i=1;i<CELLW-1;i++) {
+ field[i][0] = CELLWALL;
+ field[i][CELLH-1] = CELLWALL;
+ for(j=1;j<CELLH-2;j++)
+ field[i][j] = CELLBLANK;
+ }
+
+}
+
+int check_wall(WPLAYER *player)
+{
+ return field[player->head->c_x][player->head->c_y] == CELLWALL ? DEAD : ALIVE;
+}
+
+void drawcell(WORD h_vdi, int type, char cx, char cy,
+ int xoffset, int yoffset, int cellwidth, int cellheight)
+{
+WORD pts[4];
+int vx,vy;
+
+ vx = xoffset + cx*cellwidth;
+ vy = yoffset + cy*cellheight;
+
+ switch(type) {
+ case CELLWALL:
+ vsf_color(h_vdi, (WORD)RED);
+ pts[0] = vx; pts[1] = vy;
+ pts[2] = vx+cellwidth; pts[3] = vy+cellheight;
+ v_bar(h_vdi,pts);
+ break;
+ case CELLBLANK:
+ vsf_color(h_vdi, (WORD)WHITE);
+ pts[0] = vx; pts[1] = vy;
+ pts[2] = vx+cellwidth; pts[3] = vy+cellheight;
+ v_bar(h_vdi,pts);
+ break;
+ case CELLPLAYER:
+ vsf_color(h_vdi,(WORD)BLACK);
+ v_ellipse(h_vdi,(WORD)(vx+cellwidth/2),
+ (WORD)(vy+cellheight/2),
+ (WORD)(max(cellwidth/2-1,1)),
+ (WORD)(max(cellheight/2-1,1)));
+ break;
+ case CELLFOOD:
+ vsf_color(h_vdi,(WORD)GREEN);
+ v_ellipse(h_vdi,(WORD)(vx+cellwidth/2),
+ (WORD)(vy+2*cellheight/3),
+ (WORD)(cellwidth/2),
+ (WORD)(cellheight/3));
+ vsf_color(h_vdi,(WORD)BLACK);
+ v_pieslice(h_vdi,(WORD)(vx+cellwidth/2),
+ (WORD)(vy+cellheight/2),
+ (WORD)(cellheight/2),
+ (WORD)(500),
+ (WORD)(1300));
+ break;
+ }
+
+}
+
+void incremental_draw(WORD h_vdi, GRECT *play, int x, int y)
+{
+int cellwidth, cellheight;
+
+WUNIT *walker;
+
+ cellwidth = max(1,play->g_w/CELLW);
+ cellheight = max(1,play->g_h/CELLH);
+
+ drawcell(h_vdi, field[x][y],
+ x, y,
+ play->g_x, play->g_y,
+ cellwidth, cellheight);
+}
+
+void draw_field(WORD h_vdi, GRECT *play)
+{
+char i,j;
+WORD pts[4];
+int cellwidth, cellheight;
+
+#ifdef VDEBUG
+ printf("%d: %d %d %d %d\n",h_vdi,play->g_x,play->g_y,play->g_w,play->g_h);
+#endif
+
+ vsf_interior(h_vdi, 1);
+
+ /* Fill background */
+ vsf_color(h_vdi, (WORD)WHITE);
+ pts[0] = play->g_x; pts[1] = play->g_y;
+ pts[2] = play->g_x+play->g_w; pts[3] = play->g_y+play->g_h;
+ v_bar(h_vdi,pts);
+
+ cellwidth = max(1,play->g_w/CELLW);
+ cellheight = max(1,play->g_h/CELLH);
+
+ /* Draw all cells */
+ for(i=0;i<CELLW;i++) {
+ for(j=0;j<CELLH;j++) {
+ if(field[i][j] != CELLBLANK)
+ drawcell(h_vdi, field[i][j], i, j,
+ play->g_x, play->g_y,
+ cellwidth, cellheight);
+ }
+ }
+
+ /* Done! */
+
+}
+
+
+int update_field(WPLAYER *player)
+{
+WUNIT *walker;
+int da;
+
+ /* Check the wall now */
+ da = check_wall(player);
+
+ /* First empty the player from the field */
+ empty_field(CELLPLAYER);
+
+ /* Now reinsert all player values */
+ walker = player->head;
+ while(walker != NULL) {
+ field[walker->c_x][walker->c_y] = CELLPLAYER;
+ walker = (WUNIT *)walker->next;
+ }
+ return da;
+}
diff --git a/field.h b/field.h
new file mode 100644
index 0000000..4004d96
--- /dev/null
+++ b/field.h
@@ -0,0 +1,48 @@
+/* GEM Worm
+ * Copyright (C) 2009 Jeffrey Armstrong
+ * http://jeff.rainbow-100.com
+ *
+ * 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/>.
+ *
+ * A full version of the license terms is available in LICENSE.txt.
+ */
+
+#ifndef __FIELD_HEADERS
+#define __FIELD_HEADERS
+
+#define CELLW 40
+#define CELLH 24
+
+#include <portab.h>
+#include <aes.h>
+#include "player.h"
+
+/* Initializes the play field */
+void field_init(void);
+
+/* Checks if the player died due to wall collision */
+int check_wall(WPLAYER *player);
+
+void draw_field(WORD h_vdi, GRECT *play);
+
+int update_field(WPLAYER *player);
+
+void food_init(void);
+int food_check(WORD h_vdi, GRECT *play, WPLAYER *player);
+
+void incremental_draw(WORD h_vdi, GRECT *play, int x, int y);
+
+#define FOODADDITION 5
+
+#endif /* __FIELD_HEADERS */ \ No newline at end of file
diff --git a/license.txt b/license.txt
new file mode 100644
index 0000000..52a8372
--- /dev/null
+++ b/license.txt
@@ -0,0 +1,619 @@
+ GNU GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
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+ The licenses for most software and other practical works are designed
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+ 7. Additional Terms.
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+ "Additional permissions" are terms that supplement the terms of this
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+Additional permissions that are applicable to the entire Program shall
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+apply only to part of the Program, that part may be used separately
+under those permissions, but the entire Program remains governed by
+this License without regard to the additional permissions.
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+ When you convey a copy of a covered work, you may at your option
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+ All other non-permissive additional terms are considered "further
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+received it, or any part of it, contains a notice stating that it is
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+
+ Additional terms, permissive or non-permissive, may be stated in the
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+the above requirements apply either way.
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+ 8. Termination.
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+
+ 9. Acceptance Not Required for Having Copies.
+
+ You are not required to accept this License in order to receive or
+run a copy of the Program. Ancillary propagation of a covered work
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+
+ 10. Automatic Licensing of Downstream Recipients.
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+ Each time you convey a covered work, the recipient automatically
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+ You may not impose any further restrictions on the exercise of the
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+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+ 11. Patents.
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+ A "contributor" is a copyright holder who authorizes use under this
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+work thus licensed is called the contributor's "contributor version".
+
+ A contributor's "essential patent claims" are all patent claims
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+but do not include claims that would be infringed only as a
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+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
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+patent license under the contributor's essential patent claims, to
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+ In the following three paragraphs, a "patent license" is any express
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+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients. "Knowingly relying" means you have
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+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
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+
+ If, pursuant to or in connection with a single transaction or
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+receiving the covered work authorizing them to use, propagate, modify
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+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+ A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License. You may not convey a covered
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+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
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+or that patent license was granted, prior to 28 March 2007.
+
+ Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+ 12. No Surrender of Others' Freedom.
+
+ If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
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+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+ 13. Use with the GNU Affero General Public License.
+
+ Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
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+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+ 14. Revised Versions of this License.
+
+ The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+ Each version is given a distinguishing version number. If the
+Program specifies that a certain numbered version of the GNU General
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+version or of any later version published by the Free Software
+Foundation. If the Program does not specify a version number of the
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+
+ If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
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+to choose that version for the Program.
+
+ Later license versions may give you additional or different
+permissions. However, no additional obligations are imposed on any
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+later version.
+
+ 15. Disclaimer of Warranty.
+
+ THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
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+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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+IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+ 16. Limitation of Liability.
+
+ IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
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+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+ 17. Interpretation of Sections 15 and 16.
+
+ If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
diff --git a/makefile b/makefile
new file mode 100644
index 0000000..56e50d1
--- /dev/null
+++ b/makefile
@@ -0,0 +1,18 @@
+CC=tcc
+CFLAGS=-ms -DPCGEM #-DNEEDGSX
+CLIBS=stcgem.lib
+TARGET=worm.app
+
+clean:
+ del *.obj
+ del *.app
+
+player.obj: player.c player.h field.h
+ $(CC) $(CFLAGS) -c player.c
+
+field.obj: field.c player.h field.h
+ $(CC) $(CFLAGS) -c field.c
+
+all: worm.c player.h field.h wormpc.h player.obj field.obj
+ $(CC) $(CFLAGS) -e$(TARGET) worm.c player.obj field.obj $(CLIBS)
+ \ No newline at end of file
diff --git a/makefile.gnu b/makefile.gnu
new file mode 100644
index 0000000..c80d582
--- /dev/null
+++ b/makefile.gnu
@@ -0,0 +1,21 @@
+CC=/usr/local/bin/gcc
+CFLAGS=-DSTGEM -DDEBUG
+CLIBS=-lgem
+TARGET=worm.app
+
+clean:
+ rm -f *.o
+ rm -f *.app
+
+player.o: player.c player.h field.h
+ $(CC) $(CFLAGS) -c player.c
+
+field.o: field.c player.h field.h
+ $(CC) $(CFLAGS) -c field.c
+
+worm.o: worm.c player.h field.h keybd.h
+ $(CC) $(CFLAGS) -c worm.c
+
+all: worm.o player.h field.h keybd.h wormst.h player.o field.o
+ $(CC) $(CFLAGS) -o $(TARGET) worm.o player.o field.o $(CLIBS)
+ \ No newline at end of file
diff --git a/player.c b/player.c
new file mode 100644
index 0000000..5ba510e
--- /dev/null
+++ b/player.c
@@ -0,0 +1,148 @@
+/* GEM Worm
+ * Copyright (C) 2009 Jeffrey Armstrong
+ * http://jeff.rainbow-100.com
+ *
+ * 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/>.
+ *
+ * A full version of the license terms is available in LICENSE.txt.
+ */
+
+#include <stdio.h>
+
+#include "player.h"
+#include "field.h"
+
+void move_player(WPLAYER *player, char dir)
+{
+ player->dir = dir;
+}
+
+void swap(char *i, char *j)
+{
+char s;
+
+ s = *i;
+ *i = *j;
+ *j = s;
+}
+
+void grow(WPLAYER *player, int count)
+{
+ player->grow += count;
+}
+
+int update_player(WPLAYER *player, int *tailx, int *taily)
+{
+WUNIT *walker;
+char lastx, lasty;
+int alive;
+
+ walker = player->head;
+ lastx = walker->c_x;
+ lasty = walker->c_y;
+
+ switch(player->dir) {
+ case WUP:
+ lasty--;
+ break;
+ case WDOWN:
+ lasty++;
+ break;
+ case WLEFT:
+ lastx--;
+ break;
+ case WRIGHT:
+ lastx++;
+ break;
+ }
+
+ while(walker != NULL) {
+ swap(&lastx, &walker->c_x);
+ swap(&lasty, &walker->c_y);
+
+ if(walker->next == NULL && player->grow > 0) {
+ walker->next =(WUNIT *)malloc(sizeof(WUNIT));
+ ((WUNIT *)walker->next)->next = NULL;
+ ((WUNIT *)walker->next)->c_x = lastx;
+ ((WUNIT *)walker->next)->c_y = lasty;
+ player->grow--;
+ }
+
+ walker = (WUNIT *)walker->next;
+ }
+
+ *tailx = lastx;
+ *taily = lasty;
+
+ walker = (WUNIT *)player->head->next;
+ alive = ALIVE;
+ while(walker != NULL) {
+ if(walker->c_x == player->head->c_x && walker->c_y == player->head->c_y) {
+ alive = DEAD;
+ break;
+ }
+ walker = (WUNIT *)walker->next;
+ }
+ return alive;
+}
+
+WUNIT *reset_body(WUNIT *head)
+{
+WUNIT *walker;
+WUNIT *tmp;
+int i;
+char lastx;
+
+ walker = head;
+ while(walker != NULL) {
+ tmp = walker;
+ walker = (WUNIT *)walker->next;
+ tmp->next = NULL;
+ free(tmp);
+ }
+
+ walker = (WUNIT *)malloc(sizeof(WUNIT));
+ walker->c_x = CELLW/3*2;
+ walker->c_y = CELLH/2;
+ tmp = walker;
+ for(i=1;i<STARTLENGTH;i++) {
+ lastx = walker->c_x;
+ walker->next = (WUNIT *)malloc(sizeof(WUNIT));
+ walker = (WUNIT *)walker->next;
+ walker->c_y = CELLH/2;
+ walker->c_x = lastx+1;
+ walker->next = NULL;
+ }
+
+ return tmp;
+}
+
+
+void reset_player(WPLAYER *player)
+{
+ player->length = STARTLENGTH;
+ player->dir = WLEFT;
+ player->head = reset_body(player->head);
+}
+
+WPLAYER *init_player()
+{
+WPLAYER *player;
+
+ player = (WPLAYER *)malloc(sizeof(WPLAYER));
+ player->head = NULL;
+ reset_player(player);
+ player->grow = 0;
+ return player;
+}
diff --git a/player.h b/player.h
new file mode 100644
index 0000000..ea04edf
--- /dev/null
+++ b/player.h
@@ -0,0 +1,54 @@
+/* GEM Worm
+ * Copyright (C) 2009 Jeffrey Armstrong
+ * http://jeff.rainbow-100.com
+ *
+ * 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/>.
+ *
+ * A full version of the license terms is available in LICENSE.txt.
+ */
+#ifndef __PLHEADERS
+#define __PLHEADERS
+
+typedef struct {
+ char c_x;
+ char c_y;
+ void *next;
+} WUNIT;
+
+typedef struct {
+ int length;
+ WUNIT *head;
+ char dir;
+ int grow;
+} WPLAYER;
+
+#define WUP 0
+#define WDOWN 1
+#define WLEFT 2
+#define WRIGHT 3
+
+#define ALIVE 1
+#define DEAD 0
+
+#define STARTLENGTH 6
+
+void move_player(WPLAYER *player, char dir);
+
+int update_player(WPLAYER *player, int *tailx, int *taily);
+
+WPLAYER *init_player(void);
+
+void reset_player(WPLAYER *player);
+
+#endif /* __PLHEADERS */
diff --git a/readme.txt b/readme.txt
new file mode 100644
index 0000000..c916ca5
--- /dev/null
+++ b/readme.txt
@@ -0,0 +1,71 @@
+
+ * GEM Worm! *
+
+
+Written as a demonstration for Retrochallenge 2009
+Copyright 2009 Jeffrey Armstrong
+Licensed under the GNU General Public License version 3
+
+Introduction
+============
+
+GEM Worm is a simplistic game where you guide your worm towards food. As
+the worm eats more, he continues to grow. You mustn't bump into yourself
+or the walls, though, or your worm will die! Simple!
+
+The program is written as a GEM programming demonstration, and probably
+contains numerous bugs, coding issues, etc. It has been designed to
+compile on either the PC or Atari.
+
+Game Play
+=========
+
+To start the game, select "New Game" from the File menu. The following
+keys move your worm
+
+ w = up
+a = left s = down d = right
+
+The arrangement is very close to modern first person shooters.
+
+Compiling
+=========
+
+If you have downloaded the source code, the game can be easily compiled
+for either the PC or Atari.
+
+ - PC -
+
+ The program has been designed to compile using Turbo C 2 from
+ Borland. To compile with GEM bindings, you'll need to install
+ the GEM Programmer's Toolkit first. A makefile is included to
+ build the game.
+ - Atari -
+
+ The program is also designed to compile with Pure C from Pure
+ Software. The appropriate project file (worm.prj) is included.
+
+Legalese
+========
+
+Although this game is shockingly simple, it is still copyrighted. The
+following applies:
+
+GEM Worm
+Copyright (C) 2009 Jeffrey Armstrong
+http://jeff.rainbow-100.com
+
+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/>.
+
+A full version of the license terms is available in LICENSE.txt. \ No newline at end of file
diff --git a/worm.c b/worm.c
new file mode 100644
index 0000000..67d4dac
--- /dev/null
+++ b/worm.c
@@ -0,0 +1,434 @@
+/* GEM Worm
+ * Copyright (C) 2009 Jeffrey Armstrong
+ * http://jeff.rainbow-100.com
+ *
+ * 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/>.
+ *
+ * A full version of the license terms is available in LICENSE.txt.
+ */
+
+#include <stdio.h>
+/*#include <stdlib.h>*/
+#include <portab.h>
+#include <aes.h>
+#include <vdi.h>
+
+/* The proper resource header is dependent upon system */
+#ifdef PCGEM
+#include "wormpc.h"
+#else
+#include "wormst.h"
+#endif
+
+#include "field.h"
+#include "player.h"
+
+/* Sometimes you may need to compile in some missing global
+ * arrays used within the gem libraries
+ */
+#ifdef PCGEM
+#ifdef NEEDGSX
+GLOBAL WORD contrl[11]; /* control inputs */
+GLOBAL WORD intin[80]; /* max string length */
+GLOBAL WORD ptsin[256]; /* polygon fill points */
+GLOBAL WORD intout[45]; /* open workstation output */
+GLOBAL WORD ptsout[12];
+#endif
+#else
+#define FAR
+#endif
+
+WORD app_wflags = NAME | CLOSER | MOVER | SIZER;
+WORD app_accid;
+WORD app_appid;
+
+WORD app_wh = -1; /* Border window handle */
+WORD app_vh; /* VDI handle */
+
+char *app_title = "Worm";
+GRECT app_wdw; /* xywh of working area */
+
+OBJECT FAR *app_menu;
+OBJECT FAR *about_box;
+
+#ifndef WF_WXYWH
+#ifdef WF_WORKXYWH
+#define WF_WXYWH WF_WORKXYWH
+#endif
+#endif
+
+#ifndef WF_CXYWH
+#ifdef WF_CURRXYWH
+#define WF_CXYWH WF_CURRXYWH
+#endif
+#endif
+
+#define max(x,y) x>y ? x : y
+#define min(x,y) x<y ? x : y
+
+#ifdef PCGEM
+#define RCS_FILE "wormpc.rsc"
+#else
+#define RCS_FILE "wormst.rsc"
+#endif
+
+#define MOVEDELAY 300
+
+#define STARTWIDTH 640
+#define STARTHEIGHT 480
+
+int rc_intersect(GRECT *one, GRECT *two)
+{
+WORD tx,ty,tw,th;
+
+ tw = min(one->g_x+one->g_w,two->g_x+two->g_w);
+ th = min(one->g_y+one->g_h,two->g_y+two->g_h);
+ tx = max(one->g_x,two->g_x);
+ ty = max(one->g_y,two->g_y);
+ two->g_x = tx;
+ two->g_y = ty;
+ two->g_w = tw-tx;
+ two->g_h = th-ty;
+ return ( (tw > tx) && (th > ty) );
+}
+
+void hndl_about()
+{
+GRECT box,origin;
+
+ /* ob_xywh(app_menu, MDESK, &origin); */
+
+ form_center(about_box, &box.g_x, &box.g_y, &box.g_w, &box.g_h);
+ objc_draw(about_box,0,2,box.g_x, box.g_y, box.g_w, box.g_h);
+ form_do(about_box,0);
+ form_dial(FMD_FINISH,0,0,0,0,box.g_x, box.g_y, box.g_w, box.g_h);
+
+
+
+ return;
+}
+
+int open_window(int new)
+{
+ graf_mouse(M_OFF,NULL);
+ wind_update(BEG_UPDATE);
+
+ app_wh = wind_create(app_wflags, 0, 0, 200, 200);
+ if(app_wh<=0)
+ return -1;
+
+#ifdef PCGEM
+ wind_set(app_wh, WF_NAME, FPOFF(app_title), FPSEG(app_title), 0, 0);
+#else
+ wind_set(app_wh, WF_NAME, app_title);
+#endif
+
+ if(new == 1) {
+ /* Get the desktop */
+ wind_get(0, WF_WXYWH, &app_wdw.g_x,
+ &app_wdw.g_y,
+ &app_wdw.g_w,
+ &app_wdw.g_h);
+
+ app_wdw.g_w = min(STARTWIDTH,app_wdw.g_w);
+ app_wdw.g_h = min(STARTHEIGHT,app_wdw.g_h);
+ }
+
+ wind_open(app_wh, app_wdw.g_x, app_wdw.g_y, app_wdw.g_w, app_wdw.g_h);
+ wind_get(app_wh, WF_WXYWH, &app_wdw.g_x,
+ &app_wdw.g_y,
+ &app_wdw.g_w,
+ &app_wdw.g_h);
+
+
+ wind_update(END_UPDATE);
+ graf_mouse(M_ON,NULL);
+ return 1;
+}
+
+int init_app()
+{
+WORD work_in[11];
+WORD work_out[57];
+
+WORD ww;
+
+WORD i;
+WORD txtwidth,txtheight;
+
+ app_accid = appl_init();
+
+ /* VDI handle... */
+ app_vh = graf_handle(&txtwidth,&txtheight,&i,&i);
+ for(i=0;i<10;i++) work_in[i] = 1;
+ work_in[10] = 2;
+ v_opnvwk(work_in,&app_vh,work_out);
+
+ /* RSC load */
+ if(rsrc_load(RCS_FILE) == 0) {
+ form_alert(1,"[3][The resource file was not found][Exit]");
+ return -1;
+ }
+
+ wind_update(BEG_UPDATE);
+ rsrc_gaddr(R_TREE,RCMENU,&app_menu);
+ menu_bar(app_menu,1);
+ wind_update(END_UPDATE);
+
+ rsrc_gaddr(R_TREE,ABOUT,&about_box);
+
+ return open_window(1);
+}
+
+/* Not necessary yet... */
+void do_redraw()
+{
+GRECT box, me;
+
+WORD pts[4];
+
+#ifdef DEBUG
+ printf("REDRAW!\n");
+#endif
+
+ graf_mouse(M_OFF,NULL);
+ wind_update(BEG_UPDATE);
+
+ wind_get(app_wh, WF_WXYWH, &me.g_x, &me.g_y, &me.g_w, &me.g_h);
+ wind_get(app_wh, WF_FIRSTXYWH, &box.g_x,
+ &box.g_y,
+ &box.g_w,
+ &box.g_h);
+
+ while(box.g_w || box.g_h) {
+ if(rc_intersect(&me, &box)) {
+ pts[0] = box.g_x;
+ pts[1] = box.g_y;
+ pts[2] = box.g_w+box.g_x-1;
+ pts[3] = box.g_h+box.g_y-1;
+ vs_clip(app_vh, 1, pts);
+ draw_field(app_vh, &app_wdw);
+ }
+ wind_get(app_wh, WF_NEXTXYWH, &box.g_x,
+ &box.g_y,
+ &box.g_w,
+ &box.g_h);
+ }
+
+ /* Turn off clipping */
+ vs_clip(app_vh, 0, pts);
+ wind_update(END_UPDATE);
+ graf_mouse(M_ON,NULL);
+}
+
+void do_window_change(GRECT *rect)
+{
+ wind_set(app_wh, WF_CXYWH, rect->g_x, rect->g_y, rect->g_w, rect->g_h);
+ wind_get(app_wh, WF_WXYWH, &app_wdw.g_x, &app_wdw.g_y, &app_wdw.g_w, &app_wdw.g_h);
+}
+
+void hndl_keys(WORD key, WPLAYER *player)
+{
+char asc;
+
+ asc = key & 127;
+ switch(asc) {
+ case 'w':
+ case 'W':
+ player->dir = WUP;
+ break;
+ case 's':
+ case 'S':
+ player->dir = WDOWN;
+ break;
+ case 'a':
+ case 'A':
+ player->dir = WLEFT;
+ break;
+ case 'd':
+ case 'D':
+ player->dir = WRIGHT;
+ break;
+ }
+
+}
+
+int main(int argc, char *argv[])
+{
+WORD ret;
+WORD msg[8];
+int done;
+WORD top;
+WORD dummy;
+
+WORD special_keys;
+WORD key;
+
+WPLAYER *player;
+
+int playing = 0;
+int palive, falive;
+
+int tailx, taily;
+
+ srand(time(NULL));
+
+ if(init_app() > 0) {
+ done = 0;
+
+#ifdef DEBUG
+ printf("AppID: %d\n",app_accid);
+#endif
+ player = init_player();
+ field_init();
+ food_init();
+
+#ifdef DEBUG
+ printf("Game init complete\n");
+#endif
+
+ msg[0] = AC_OPEN;
+ msg[4] = app_accid;
+ ret = MU_MESAG;
+ done = -2;
+ while(done <=0) {
+
+ if(done == -2)
+ done = -1;
+ else {
+ ret = evnt_multi(MU_KEYBD | MU_MESAG | MU_TIMER, /* Accept keypresses, messages, and timers */
+ 0, 0, 0, /* Mouse clicks, which buttons, and states */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* Mouse movement info */
+ msg, /* 16-byte message array */
+ (WORD)MOVEDELAY, 0, /* The low and high word of the timer in ms */
+ &dummy, &dummy, /* Mouse position @ mouse event */
+ &dummy, /* Mouse button status */
+ &special_keys, /* "Special" key statuses */
+ &key, /* Key pressed scancode */
+ &dummy); /* # of mouse button presses */
+
+ }
+#ifdef DEBUG
+ printf("maybe MSG: %d\n",msg[0]);
+#endif
+ /* Key presses */
+ if((ret & MU_KEYBD) && playing > 0) {
+ hndl_keys(key,player);
+
+ /* Timer - update game */
+ } else if((ret & MU_TIMER) && playing > 0) {
+ wind_update(BEG_UPDATE);
+ palive = update_player(player, &tailx, &taily);
+ falive = update_field(player);
+
+ food_check(app_vh, &app_wdw, player);
+
+ /* form_alert(1,"[1][Update][Ok]"); */
+ /* draw_field(app_vh, &app_wdw); */
+ incremental_draw(app_vh, &app_wdw, player->head->c_x, player->head->c_y);
+ incremental_draw(app_vh, &app_wdw, tailx, taily);
+
+ wind_update(END_UPDATE);
+
+ if(palive == DEAD || falive == DEAD) {
+ form_alert(1,"[3][You've Died!|Good try, though...][Reset]");
+ reset_player(player);
+ playing = 0;
+ }
+
+ /* Messages (menu, resizes, etc.) */
+ } else if(ret & MU_MESAG) {
+#ifdef DEBUG
+ printf("MSG: %d\n",msg[0]);
+#endif
+ switch(msg[0]) {
+ case AC_OPEN:
+ if(msg[4] != app_accid)
+ break;
+ if(app_wh > 0) {
+ wind_get(0,WF_TOP, &top, &dummy, &dummy, &dummy);
+ if(top != app_wh) {
+ wind_set(app_wh, WF_TOP, app_wh, 0, 0, 0);
+ wind_set(app_wh, WF_CXYWH, 30,30,100,100);
+ }
+ } else
+ open_window(0);
+ break;
+
+ case AC_CLOSE:
+ if(msg[3] == app_accid)
+ app_wh = -1;
+ break;
+
+ case WM_CLOSED:
+ if(msg[3] != app_wh || app_wh < 0)
+ break;
+ graf_mouse(M_OFF,NULL);
+ wind_close(app_wh);
+ wind_delete(app_wh);
+ graf_mouse(M_ON,NULL);
+ app_wh = -1;
+ done = 1;
+ break;
+
+ case WM_TOPPED:
+ wind_set(app_wh,WF_TOP,app_wh,0,0,0);
+ break;
+
+ case WM_MOVED:
+ case WM_SIZED:
+ do_window_change((GRECT *)&msg[4]);
+ case WM_REDRAW:
+ update_field(player);
+ do_redraw();
+ break;
+
+ case MN_SELECTED:
+ switch(msg[4]) {
+ case MQUIT:
+ msg[0] = WM_CLOSED;
+ msg[3] = app_wh;
+ appl_write(app_accid,sizeof(msg),msg);
+ break;
+ case MNEW:
+ update_field(player);
+ draw_field(app_vh, &app_wdw);
+ playing = 1;
+ break;
+ case MABOUT:
+ hndl_about();
+ break;
+ }
+ break;
+
+ } /* switch */
+
+ } /* if */
+
+ if(app_wh <= 0 )
+ continue;
+
+ /* done = 0; */
+
+ } /* while */
+
+ v_clsvwk(app_vh);
+ /* wind_close(app_wh); */
+ /* wind_delete(app_wh); */
+ appl_exit();
+
+ }
+
+ return 0;
+}
diff --git a/worm.prj b/worm.prj
new file mode 100644
index 0000000..78d1fbd
--- /dev/null
+++ b/worm.prj
@@ -0,0 +1,16 @@
+worm.prg
+;
+.C [-K -P]
+.S [] ; -Y]
+.L [-S=16384]
+=
+PCSTART.O
+;
+field.c (field.h, player.h)
+player.c (field.h, player.h)
+worm.c (field.h, player.h, wormst.h)
+;
+PCSTDLIB.LIB
+PCTOSLIB.LIB
+PCGEMLIB.LIB
+
diff --git a/wormpc.h b/wormpc.h
new file mode 100644
index 0000000..1a54772
--- /dev/null
+++ b/wormpc.h
@@ -0,0 +1,8 @@
+#define RCMENU 0 /* TREE */
+#define MNEW 17 /* OBJECT in TREE #0 */
+#define MQUIT 16 /* OBJECT in TREE #0 */
+#define MABOUT 7 /* OBJECT in TREE #0 */
+#define ABOUT 1 /* TREE */
+#define BEXIT 12 /* OBJECT in TREE #1 */
+#define MDESK 3 /* OBJECT in TREE #0 */
+ \ No newline at end of file
diff --git a/wormpc.rsc b/wormpc.rsc
new file mode 100644
index 0000000..f9b0f39
--- /dev/null
+++ b/wormpc.rsc
Binary files differ
diff --git a/wormst.h b/wormst.h
new file mode 100644
index 0000000..9c1305c
--- /dev/null
+++ b/wormst.h
@@ -0,0 +1,9 @@
+
+#define RCMENU 0 /* TREE - MENU */
+#define MDESK 3 /* G_TITLE in (#0) RCMENU */
+#define MABOUT 7 /* G_STRING in (#0) RCMENU */
+#define MNEW 16 /* G_STRING in (#0) RCMENU */
+#define MQUIT 17 /* G_STRING in (#0) RCMENU */
+
+#define ABOUT 1 /* TREE - DIALOG */
+#define BEXIT 11 /* G_BUTTON in (#1) ABOUT */
diff --git a/wormst.hrd b/wormst.hrd
new file mode 100644
index 0000000..503891c
--- /dev/null
+++ b/wormst.hrd
Binary files differ
diff --git a/wormst.rsc b/wormst.rsc
new file mode 100644
index 0000000..3d4f86d
--- /dev/null
+++ b/wormst.rsc
Binary files differ