draw level

CMakeLists.txt

@@ -18,6 +18,7 @@ set(SOURCES
 )
 
 set(ASSETS
+	res/tileset.png
 	res/test.kble
 )
 

inc/level.h

@@ -1,4 +1,5 @@
 #pragma once
+#include "visual_data.h"
 #include <stdint.h>
 
 struct LevelBin {
@@ -11,6 +12,7 @@ struct Level {
 	int width, height, size;
 	const struct LevelBin *bin;
 	uint8_t *data;
+	struct VisualData *visual_data;
 };
 
 void level_init(void);
@@ -18,3 +20,5 @@ void level_deinit(void);
 
 void level_load(const struct LevelBin *);
 void level_reload(void);
+void level_regen_visual_data(void);
+void level_draw(void);

inc/visual_data.h

@@ -0,0 +1,5 @@
+#pragma once
+
+struct VisualData {
+	int x, y, img_x, img_y, visible;
+};

res/fxconv-metadata.txt

@@ -1,3 +1,6 @@
+*.png:
+  type: bopti-image
+  name_regex: (.*)\.png bimg_\1
 *.kble:
   type: binary
   name_regex: (.*)\.kble kble_\1

src/level.c

@@ -1,7 +1,11 @@
 #include "level.h"
+#include "conf.h"
+#include "visual_data.h"
+#include <gint/display.h>
 #include <stdlib.h>
 
 static struct Level level;
+extern bopti_image_t bimg_tileset;
 
 static void level_free(void);
 
@@ -9,6 +13,7 @@ void
 level_init(void)
 {
 	level.data = NULL;
+	level.visual_data = NULL;
 }
 
 void
@@ -26,9 +31,11 @@ level_load(const struct LevelBin *b)
 	level.height = b->height;
 	level.size = i;
 	level.data = malloc(i);
+	level.visual_data = malloc(i * sizeof(struct VisualData));
 	level.bin = b;
 	while (i-- > 0)
 		level.data[i] = b->data[i];
+	level_regen_visual_data();
 }
 
 void
@@ -37,6 +44,39 @@ level_reload(void)
 	level_load(level.bin);
 }
 
+void
+level_regen_visual_data(void)
+{
+	const int tileset_width = bimg_tileset.width / TILE_SIZE;
+	int y = level.height;
+	while (y-- > 0) {
+		int x = level.width;
+		while (x-- > 0) {
+			const int i = x + y * level.width;
+			const int tile = level.data[i];
+			struct VisualData *const vd = &level.visual_data[i];
+			vd->x = x * TILE_SIZE;
+			vd->y = y * TILE_SIZE;
+			vd->img_x = tile % tileset_width * TILE_SIZE;
+			vd->img_y = (int)(tile / tileset_width) * TILE_SIZE;
+			vd->visible = tile != 0;
+		}
+	}
+}
+
+void
+level_draw(void)
+{
+	int i = level.size;
+	while (i-- > 0) {
+		const struct VisualData *const vd = &level.visual_data[i];
+		if (vd->visible) {
+			dsubimage(vd->x, vd->y, &bimg_tileset, vd->img_x,
+			          vd->img_y, TILE_SIZE, TILE_SIZE, 0);
+		}
+	}
+}
+
 static void
 level_free(void)
 {
@@ -44,4 +84,8 @@ level_free(void)
 		free(level.data);
 		level.data = NULL;
 	}
+	if (level.visual_data != NULL) {
+		free(level.visual_data);
+		level.visual_data = NULL;
+	}
 }

src/main.c

@@ -53,6 +53,7 @@ static void
 draw(void)
 {
 	dclear(C_BLACK);
+	level_draw();
 	player_draw(&player);
 	dupdate();
 }