diff --git a/platformer.c b/platformer.c
index ee0381c..7780ce6 100644
--- a/platformer.c
+++ b/platformer.c
@@ -28,9 +28,9 @@ static enum palette playfield[PLAYFIELD_SIDE * PLAYFIELD_SIDE];
 static char tilemap[] = "          "
                         "          "
                         "          "
-                        "          "
+                        "   g      "
                         "gg    g   "
-                        "   g     g"
+                        "         g"
                         "        g "
                         "     g    "
                         "    g g   "
@@ -73,7 +73,7 @@ static void on_keyboard(void *context, uint32_t window, uint32_t codepoint) {
 		case KBKEY_E: jump_duration += 0.1; break;
 		case KBKEY_D: jump_duration -= 0.1; break;
 	}
-	printf("hold %i height %i duration %i\n", (int)(jump_maxhold * 10), (int)(jump_maxheight * 10), (int)(jump_duration * 10));
+	//printf("hold %i height %i duration %i\n", (int)(jump_maxhold * 10), (int)(jump_maxheight * 10), (int)(jump_duration * 10));
 }
 
 static void on_quit(void *context, uint32_t window) {
@@ -124,7 +124,6 @@ static void update(struct timespec now, struct timespec dt_timespec) {
 		jump_start_y = player_y;
 	}
 	if (!on_ground && !jumping) {
-		// TODO: implement proper falling
 		jumping = true;
 		in_jump = jump_duration;
 		jump_start_y = player_y + jump_maxheight;
@@ -186,7 +185,7 @@ static void update(struct timespec now, struct timespec dt_timespec) {
 	size_t left_cx = px - 1;
 	size_t right_cx = px + TILE_SIDE;
 	size_t leftright_top_cy = py;
-	size_t leftright_bottom_cy = py + TILE_SIDE - 2;
+	size_t leftright_bottom_cy = py + TILE_SIDE - 3; //XXX: proper handling of snapping
 	if ((sample_tilemap(left_cx, leftright_top_cy) != ' ' ||
 	     sample_tilemap(left_cx, leftright_bottom_cy) != ' ') &&
 		player_dx < 0) {
@@ -224,7 +223,8 @@ static void update(struct timespec now, struct timespec dt_timespec) {
 		player_dy < 0) {
 		size_t snapped_py = (py + TILE_SIDE - 1) / TILE_SIDE * TILE_SIDE;
 		player_y = snapped_py;
-		player_dy = 0;
+		in_jump = jump_duration;
+		jump_start_y = player_y + jump_maxheight;
 	}
 }