From b6e7e454ed6242475163dcd534051897d3c9158c Mon Sep 17 00:00:00 2001
From: lamp
Date: Sun, 5 Mar 2023 21:25:03 +0000
Subject: init

---
 src/pipe.c | 84 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 84 insertions(+)
 create mode 100644 src/pipe.c

(limited to 'src/pipe.c')

diff --git a/src/pipe.c b/src/pipe.c
new file mode 100644
index 0000000..ff9656d
--- /dev/null
+++ b/src/pipe.c
@@ -0,0 +1,84 @@
+#include "pipe.h"
+#include "defines.h"
+
+inline void pipe_init(Pipe *pipe) {
+  set_sprite_tile(pipe->sprite_ids[PIPE_TILE_TOP_LEFT],
+                  PIPE_TILE_START + CAP_LEFT);
+  set_sprite_prop(pipe->sprite_ids[PIPE_TILE_TOP_LEFT], S_FLIPY);
+
+  set_sprite_tile(pipe->sprite_ids[PIPE_TILE_TOP_MIDDLE],
+                  PIPE_TILE_START + CAP_MIDDLE);
+  set_sprite_prop(pipe->sprite_ids[PIPE_TILE_TOP_MIDDLE], S_FLIPY);
+
+  set_sprite_tile(pipe->sprite_ids[PIPE_TILE_TOP_RIGHT],
+                  PIPE_TILE_START + CAP_LEFT);
+  set_sprite_prop(pipe->sprite_ids[PIPE_TILE_TOP_RIGHT], S_FLIPX | S_FLIPY);
+
+  set_sprite_tile(pipe->sprite_ids[PIPE_TILE_BOTTOM_LEFT],
+                  PIPE_TILE_START + CAP_LEFT);
+
+  set_sprite_tile(pipe->sprite_ids[PIPE_TILE_BOTTOM_MIDDLE],
+                  PIPE_TILE_START + CAP_MIDDLE);
+
+  set_sprite_tile(pipe->sprite_ids[PIPE_TILE_BOTTOM_RIGHT],
+                  PIPE_TILE_START + CAP_LEFT);
+  set_sprite_prop(pipe->sprite_ids[PIPE_TILE_BOTTOM_RIGHT], S_FLIPX);
+
+  for (UINT8 i = 6; i < 16; i++) {
+    set_sprite_tile(pipe->sprite_ids[i], PIPE_TILE_START + MAIN_LEFT);
+  }
+  for (UINT8 i = 16; i < 26; i++) {
+    set_sprite_tile(pipe->sprite_ids[i], PIPE_TILE_START + MAIN_MIDDLE);
+  }
+  for (UINT8 i = 26; i < 36; i++) {
+    set_sprite_tile(pipe->sprite_ids[i], PIPE_TILE_START + MAIN_LEFT);
+    set_sprite_prop(pipe->sprite_ids[i], S_FLIPX);
+  }
+}
+
+inline void pipe_scroll_horizontal(Pipe *pipe, ScreenCoordinate x) {
+  pipe->x += x;
+  for (UINT8 i = 36; i != 0; i--) {
+    scroll_sprite(pipe->sprite_ids[i - 1], x, 0);
+  }
+}
+
+inline void pipe_move_gap_height(Pipe *pipe, UINT8 gap_height) {
+  pipe->height_of_gap = gap_height;
+  for (UINT8 i = 0; i < gap_height; i++) {
+    move_sprite(pipe->sprite_ids[i + 4], pipe->x, i * TILE_SIZE);
+    move_sprite(pipe->sprite_ids[i + 14], pipe->x + TILE_SIZE, i * TILE_SIZE);
+    move_sprite(pipe->sprite_ids[i + 24], pipe->x + TILE_SIZE + TILE_SIZE,
+                i * TILE_SIZE);
+  }
+  move_sprite(pipe->sprite_ids[PIPE_TILE_TOP_LEFT], pipe->x,
+              gap_height * TILE_SIZE);
+  move_sprite(pipe->sprite_ids[PIPE_TILE_TOP_MIDDLE], pipe->x + TILE_SIZE,
+              gap_height * TILE_SIZE);
+  move_sprite(pipe->sprite_ids[PIPE_TILE_TOP_RIGHT],
+              pipe->x + TILE_SIZE + TILE_SIZE, gap_height * TILE_SIZE);
+
+  move_sprite(pipe->sprite_ids[PIPE_TILE_BOTTOM_LEFT], pipe->x,
+              (gap_height + pipe->gap_skip) * TILE_SIZE);
+  move_sprite(pipe->sprite_ids[PIPE_TILE_BOTTOM_MIDDLE], pipe->x + TILE_SIZE,
+              (gap_height + pipe->gap_skip) * TILE_SIZE);
+  move_sprite(pipe->sprite_ids[PIPE_TILE_BOTTOM_RIGHT],
+              pipe->x + TILE_SIZE + TILE_SIZE,
+              (gap_height + pipe->gap_skip) * TILE_SIZE);
+
+  for (UINT8 i = gap_height; i < (16 - pipe->gap_skip); i++) {
+    move_sprite(pipe->sprite_ids[i + 4], pipe->x,
+                (i + pipe->gap_skip + 1) * TILE_SIZE);
+    move_sprite(pipe->sprite_ids[i + 14], pipe->x + TILE_SIZE,
+                (i + pipe->gap_skip + 1) * TILE_SIZE);
+    move_sprite(pipe->sprite_ids[i + 24], pipe->x + TILE_SIZE + TILE_SIZE,
+                (i + pipe->gap_skip + 1) * TILE_SIZE);
+  }
+}
+
+inline void pipe_hide(Pipe *pipe) {
+  pipe->x += 0;
+  for (UINT8 i = 36; i != 0; i--) {
+    move_sprite(pipe->sprite_ids[i - 1], 0, 0);
+  }
+}
-- 
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