Level pack selection

include/conf.h

@@ -9,6 +9,7 @@
 #define TILESET_WIDTH 16
 #define TARGET_FPS    30
 #define TARGET_UPS    60
+#define LVL_PER_PACK  4
 #define ACC_GND       0.1
 #define ACC_AIR       0.025
 #define MAX_HSPD      3.0

make_filepaths.sh

@@ -7,11 +7,14 @@ printf '#pragma once\n'
 printf '#include <stdint.h>\n\n'
 printf 'static const uint16_t filepaths[][64] = {\n'
 
+LEVEL_COUNT=0
+
 cd assets/levels
 for PACK in *; do
 	PACK_NAME="$(basename $PACK)"
 	cd "$PACK"
 	for LEVEL in *; do
+		LEVEL_COUNT="$(($LEVEL_COUNT + 1))"
 		LEVEL_NAME="$(basename $LEVEL | cut -c2- |
 		    awk -F '.' '{print $1}' |
 		    tr '[:lower:]' '[:upper:]')"
@@ -25,6 +28,10 @@ for PACK in *; do
 	done
 	cd ..
 done
-printf '};\n'
+printf '};\n\n'
 
-printf 'static const char level_names[][32] = { %s\n};\n' "$LEVEL_NAMES"
+printf 'static const char level_names[][32] = {%s\n};\n\n' "$LEVEL_NAMES"
+
+[ "$(($LEVEL_COUNT % 4))" != 0 ] && LEVEL_COUNT="$(($LEVEL_COUNT + 4 - $LEVEL_COUNT % 4))"
+
+printf '#define PACK_COUNT %s\n' "$(($LEVEL_COUNT / 4))"

src/levelselection/update.c

@@ -1,6 +1,7 @@
 /* SPDX-License-Identifier: GPL-3.0-or-later */
 /* Copyright (C) 2021 KikooDX */
 
+#include "filepaths.h"
 #include "input.h"
 #include "levelselection.h"
 #include <gint/keyboard.h>
@@ -9,9 +10,17 @@
 int levelselection_update(struct LevelSelection *levelselection,
                           struct Input input)
 {
-	if (input.keystates[K_A] == KS_PRESS) {
+	/* decrease selected pack id */
+	if (input.keystates[K_LEFT] == KS_PRESS &&
+	    levelselection->pack_cursor > 0)
+		levelselection->pack_cursor -= 1;
+	/* increase selected pack id */
+	if (input.keystates[K_RIGHT] == KS_PRESS &&
+	    levelselection->pack_cursor < PACK_COUNT - 1)
+		levelselection->pack_cursor += 1;
+	/* confirm */
+	if (input.keystates[K_A] == KS_PRESS)
 		return 1;
-	}
 
 	return 0;
 }

src/main.c

@@ -104,8 +104,15 @@ int main(void)
 				break;
 			case LevelSelection:
 				if (levelselection_update(
-					&levelselection, input))
+					&levelselection, input)) {
 					game_state = Playing;
+					/* set level according to
+					 * selected pack */
+					level_id =
+					    levelselection.pack_cursor *
+					    LVL_PER_PACK;
+					LOAD_LEVEL();
+				}
 				break;
 			case Playing:
 				if (transition.mode == TransitionNone) {