level module

CMakeLists.txt

@@ -14,12 +14,15 @@ include_directories(inc)
 set(SOURCES
 	src/main.c
 	src/input.c
+	src/level.c
 )
 
 set(LEVELS
+	lvl/test.kble
 )
 
 set(ASSETS
+	res/tileset.png
 	${LEVELS}
 )
 

inc/conf.h

@@ -0,0 +1,3 @@
+#pragma once
+
+#define TILE_SIZE 16

inc/level.h

@@ -0,0 +1,19 @@
+#pragma once
+
+struct LevelBin {
+	unsigned char format;
+	unsigned char chunk_size;
+	unsigned short width;
+	unsigned short height;
+	unsigned char data[];
+} __attribute__((__packed__));
+
+struct Level {
+	int width;
+	int height;
+	char *data;
+};
+
+struct Level level_load(struct LevelBin *restrict);
+void level_free(struct Level *restrict);
+void level_draw(struct Level *restrict);

jle.ini

@@ -1,5 +1,5 @@
 # https://git.sr.ht/~kikoodx/jle
-tileset = assets/graphics/tileset.png
+tileset = res/tileset.png
 tile_size = 16
 new_level_width = 25
 new_level_height = 14

lvl/fxconv-metadata.txt

@@ -0,0 +1,3 @@
+*.kble:
+  type: binary
+  name_regex: (.*)\.kble lvl_\1

res/fxconv-metadata.txt

@@ -0,0 +1,3 @@
+tileset.png:
+  type: bopti-image
+  name: bimg_tileset

src/level.c

@@ -0,0 +1,50 @@
+#include "level.h"
+#include "conf.h"
+#include <gint/display.h>
+#include <stdlib.h>
+
+struct Level
+level_load(struct LevelBin *restrict s)
+{
+	struct Level level;
+	int i = s->width * s->height;
+	level.width = s->width;
+	level.height = s->height;
+	level.data = malloc(i);
+	while (i-- > 0) {
+		level.data[i] = s->data[i];
+	}
+	return level;
+}
+
+void
+level_free(struct Level *restrict s)
+{
+	free(s->data);
+}
+
+void
+level_draw(struct Level *restrict s)
+{
+	extern bopti_image_t bimg_tileset;
+	const int tileset_width = bimg_tileset.width / TILE_SIZE;
+	int i;
+	int x = 0;
+	int y = 0;
+
+	for (i = 0; i < s->width * s->height; i++) {
+		const int sx = x * TILE_SIZE;
+		const int sy = y * TILE_SIZE;
+		const int tile = s->data[i];
+		const int rx = tile % tileset_width * TILE_SIZE;
+		const int ry = tile / tileset_width * TILE_SIZE;
+
+		dsubimage(sx, sy, &bimg_tileset, rx, ry, TILE_SIZE, TILE_SIZE,
+		          DIMAGE_NONE);
+
+		if (++x >= s->width) {
+			x = 0;
+			y++;
+		}
+	}
+}

src/main.c

@@ -1,10 +1,30 @@
 #include "input.h"
+#include "level.h"
+#include <gint/display.h>
+
+extern struct LevelBin lvl_test;
+struct Level level;
+
+static void draw(void);
 
 int
 main(void)
 {
 	input_init();
+	level = level_load(&lvl_test);
+
+	draw();
 	while (!input_pressed(K_EXIT))
 		input_update();
+
+	level_free(&level);
 	return 1;
 }
+
+static void
+draw(void)
+{
+	dclear(C_BLACK);
+	level_draw(&level);
+	dupdate();
+}