From 76c3689b01d18e5949e91d0658deb278714f882b Mon Sep 17 00:00:00 2001
From: John Tsiombikas <nuclear@member.fsf.org>
Date: Thu, 16 Sep 2021 22:10:14 +0300
Subject: [PATCH] fixed dunger build, added current cell coordinates readout

---
 .gitignore               |    1 +
 src/level.c              |   15 +++++++++++++++
 tools/dunger/Makefile    |    7 +++++--
 tools/dunger/src/lview.c |   16 ++++++++++++++++
 tools/dunger/src/main.c  |   22 +++++++++++++++++-----
 5 files changed, 54 insertions(+), 7 deletions(-)

diff --git a/.gitignore b/.gitignore
index 7122e49..f21f44f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,3 +8,4 @@ tools/dunger/dunger
 data/
 datasrc/
 game
+tools/dunger/src/level.c
diff --git a/src/level.c b/src/level.c
index 6f265c3..566b1c3 100644
--- a/src/level.c
+++ b/src/level.c
@@ -10,6 +10,8 @@ static int load_tileset(struct level *lvl, struct ts_node *tsn);
 
 int init_level(struct level *lvl, int xsz, int ysz)
 {
+	memset(lvl, 0, sizeof *lvl);
+
 	if(!(lvl->cells = calloc(xsz * ysz, sizeof *lvl->cells))) {
 		free(lvl);
 		return -1;
@@ -37,7 +39,9 @@ int load_level(struct level *lvl, const char *fname)
 
 	lvl->fname = strdup(fname);
 	if((lvl->dirname = malloc(strlen(fname) + 1))) {
+#ifndef LEVEL_EDITOR
 		path_dir(lvl->fname, lvl->dirname);
+#endif
 	}
 
 	if(!(ts = ts_load(fname))) {
@@ -192,6 +196,8 @@ err:
 	return -1;
 }
 
+#ifndef LEVEL_EDITOR
+
 static int load_tileset(struct level *lvl, struct ts_node *tsn)
 {
 	static const char *tile_types[] = {"empty", "straight", "corner", "door", 0};
@@ -332,3 +338,12 @@ int gen_level_geom(struct level *lvl)
 	}
 	return 0;
 }
+
+#else
+
+static int load_tileset(struct level *lvl, struct ts_node *tsn)
+{
+	return 0;		/* in the level editor we don't need tileset loading */
+}
+
+#endif	/* !LEVEL_EDITOR */
diff --git a/tools/dunger/Makefile b/tools/dunger/Makefile
index c2d2333..81ff599 100644
--- a/tools/dunger/Makefile
+++ b/tools/dunger/Makefile
@@ -1,14 +1,17 @@
-src = $(wildcard src/*.c) ../../src/level.c
+src = src/main.c src/lview.c src/level.c
 obj = $(src:.c=.o)
 dep = $(src:.c=.d)
 bin = dunger
 
-CFLAGS = -pedantic -Wall -g
+CFLAGS = -pedantic -Wall -g -DLEVEL_EDITOR -I../../src
 LDFLAGS = -lGL -lGLU -lglut -lutk -ldrawtext -ltreestore
 
 $(bin): $(obj)
 	$(CC) -o $@ $(obj) $(LDFLAGS)
 
+src/level.c: ../../src/level.c
+	cp $< $@
+
 -include $(dep)
 
 .PHONY: clean
diff --git a/tools/dunger/src/lview.c b/tools/dunger/src/lview.c
index 8e0ee27..e0001fe 100644
--- a/tools/dunger/src/lview.c
+++ b/tools/dunger/src/lview.c
@@ -1,4 +1,5 @@
 #include <GL/gl.h>
+#include <drawtext.h>
 #include "lview.h"
 
 static struct level *lvl;
@@ -129,6 +130,21 @@ void draw_lview(void)
 	}
 	glEnd();
 
+	if(sel) {
+		int cidx = sel - lvl->cells;
+		int row = cidx / lvl->width;
+		int col = cidx % lvl->width;
+
+		glMatrixMode(GL_MODELVIEW);
+		glPushMatrix();
+		glTranslatef(10, 10, 0);
+
+		glColor3f(1, 1, 1);
+		dtx_printf("(%d, %d)", col, row);
+		dtx_flush();
+
+		glPopMatrix();
+	}
 }
 
 void cell_to_pos(int cx, int cy, float *px, float *py)
diff --git a/tools/dunger/src/main.c b/tools/dunger/src/main.c
index 5a23d71..ec5a827 100644
--- a/tools/dunger/src/main.c
+++ b/tools/dunger/src/main.c
@@ -57,6 +57,8 @@ static utk_widget *cbox_newsz;
 
 static struct level lvl;
 
+static const char *opt_fname;
+
 
 int main(int argc, char **argv)
 {
@@ -141,9 +143,16 @@ static int init(void)
 	utk_set_size(uiwin_new, utk_get_width(vbox) + pad * 2.0f, utk_get_height(vbox) + pad * 2.0f);
 
 
-	if(init_level(&lvl, 32, 32) == -1) {
-		fprintf(stderr, "failed to create level\n");
-		return -1;
+	if(opt_fname) {
+		if(load_level(&lvl, opt_fname) == -1) {
+			fprintf(stderr, "failed to load level: %s\n", opt_fname);
+			return -1;
+		}
+	} else {
+		if(init_level(&lvl, 32, 32) == -1) {
+			fprintf(stderr, "failed to create level\n");
+			return -1;
+		}
 	}
 	if(init_lview(&lvl) == -1) {
 		return -1;
@@ -420,8 +429,11 @@ static int parse_args(int argc, char **argv)
 				return -1;
 			}
 		} else {
-			fprintf(stderr, "unexpected argument: %s\n", argv[i]);
-			return -1;
+			if(opt_fname) {
+				fprintf(stderr, "unexpected argument: %s\n", argv[i]);
+				return -1;
+			}
+			opt_fname = argv[i];
 		}
 	}
 	return 0;
-- 
1.7.10.4