From dfb855ef48d1e7022650719d0b76a22a718912b6 Mon Sep 17 00:00:00 2001
From: Norgesnerd <5824576+Norgesnerd@users.noreply.github.com>
Date: Mon, 16 Jun 2025 14:52:42 +0200
Subject: [PATCH] Implement & link ef_slip

---
 configure.py         |  2 +-
 src/effect/ef_slip.c | 96 ++++++++++++++++++++++++++++++++++++++++++--
 2 files changed, 93 insertions(+), 5 deletions(-)

diff --git a/configure.py b/configure.py
index be80a3a5..f0ae10b4 100644
--- a/configure.py
+++ b/configure.py
@@ -1325,7 +1325,7 @@ config.libs = [
             Object(Matching, "effect/ef_siawase_hikari.c"),
             Object(Matching, "effect/ef_sibuki.c"),
             Object(Matching, "effect/ef_situren.c"),
-            Object(NonMatching, "effect/ef_slip.c"),
+            Object(Matching, "effect/ef_slip.c"),
             Object(NonMatching, "effect/ef_slip_footprint.c"),
             Object(NonMatching, "effect/ef_soba_yuge.c"),
             Object(NonMatching, "effect/ef_steam.c"),
diff --git a/src/effect/ef_slip.c b/src/effect/ef_slip.c
index b0a73062..55e66fa5 100644
--- a/src/effect/ef_slip.c
+++ b/src/effect/ef_slip.c
@@ -1,5 +1,7 @@
 #include "ef_effect_control.h"
 
+#include "m_common_data.h"
+
 static void eSlip_init(xyz_t pos, int prio, s16 angle, GAME* game, u16 item_name, s16 arg0, s16 arg1);
 static void eSlip_ct(eEC_Effect_c* effect, GAME* game, void* ct_arg);
 static void eSlip_mv(eEC_Effect_c* effect, GAME* game);
@@ -18,17 +20,103 @@ eEC_PROFILE_c iam_ef_slip = {
 };
 
 static void eSlip_init(xyz_t pos, int prio, s16 angle, GAME* game, u16 item_name, s16 arg0, s16 arg1) {
-    // TODO
+    s16 weather;
+
+    if (eEC_CLIP != NULL) {
+        weather = mEnv_NowWeather();
+        pos.y += 2.0f;
+
+        switch (Common_Get(time).season) {
+            case mTM_SEASON_WINTER: {
+                switch (arg0) {
+                    case mCoBG_ATTRIBUTE_GRASS0:
+                    case mCoBG_ATTRIBUTE_GRASS1:
+                    case mCoBG_ATTRIBUTE_GRASS2:
+                        if (((arg1 & 3) == 0) && (arg1 < 14)) {
+                            pos.x -= sin_s(angle) * 10.0f;
+                            pos.z -= cos_s(angle) * 10.0f;
+                            pos.y += 5.0f;
+                            eEC_CLIP->effect_make_proc(eEC_EFFECT_YUKIHANE, pos, prio, angle, game, item_name, arg0, 0);
+                        }
+                        break;
+
+                    case mCoBG_ATTRIBUTE_BUSH:
+                        break;
+
+                    case mCoBG_ATTRIBUTE_SAND:
+                        if (((arg1 & 3) == 0) && (arg1 < 10)) {
+                            pos.x -= sin_s(angle) * 13.0f;
+                            pos.z -= cos_s(angle) * 13.0f;
+                            pos.y += 6.0f;
+                            eEC_CLIP->effect_make_proc(eEC_EFFECT_SANDSPLASH, pos, prio, angle, game, item_name, 2, 0);
+                        }
+                        break;
+
+                    default:
+                        if ((weather == mEnv_WEATHER_RAIN) || (arg0 == mCoBG_ATTRIBUTE_WAVE)) {
+                            if (((arg1 & 3) == 0) && (arg1 < 10)) {
+                                pos.x -= sin_s(angle) * 13.0f;
+                                pos.z -= cos_s(angle) * 13.0f;
+                                pos.y += 6.0f;
+                                eEC_CLIP->effect_make_proc(eEC_EFFECT_SIBUKI, pos, prio, angle, game, item_name, arg0,
+                                                           0);
+                            }
+                        } else if (((arg1 & 3) == 0) && (arg1 < 10)) {
+                            pos.y += 7.0f;
+                            eEC_CLIP->effect_make_proc(eEC_EFFECT_DUST, pos, prio, angle, game, item_name, arg0, 8);
+                        }
+                        break;
+                }
+                break;
+            }
+
+            default: {
+                switch (arg0) {
+                    case mCoBG_ATTRIBUTE_BUSH:
+                        break;
+
+                    case mCoBG_ATTRIBUTE_SAND:
+                        if (((arg1 & 3) == 0) && (arg1 < 10)) {
+                            pos.x -= sin_s(angle) * 13.0f;
+                            pos.z -= cos_s(angle) * 13.0f;
+                            pos.y += 6.0f;
+                            eEC_CLIP->effect_make_proc(eEC_EFFECT_SANDSPLASH, pos, prio, angle, game, item_name, 2, 0);
+                        }
+                        break;
+
+                    default:
+                        if ((weather == mEnv_WEATHER_RAIN) || (arg0 == mCoBG_ATTRIBUTE_WAVE)) {
+                            if (((arg1 & 3) == 0) && (arg1 < 10)) {
+                                pos.x -= sin_s(angle) * 13.0f;
+                                pos.z -= cos_s(angle) * 13.0f;
+                                pos.y += 6.0f;
+                                eEC_CLIP->effect_make_proc(eEC_EFFECT_SIBUKI, pos, prio, angle, game, item_name, arg0,
+                                                           0);
+                            }
+                            break;
+                        }
+                        if (((arg1 & 3) == 0) && (arg1 < 10)) {
+                            pos.y += 7.0f;
+                            eEC_CLIP->effect_make_proc(eEC_EFFECT_DUST, pos, prio, angle, game, item_name, arg0, 8);
+                        }
+                        break;
+                }
+                break;
+            }
+        }
+    }
+
+    eEC_CLIP->make_effect_proc(eEC_EFFECT_SLIP, pos, NULL, game, NULL, item_name, prio, 0, 0);
 }
 
 static void eSlip_ct(eEC_Effect_c* effect, GAME* game, void* ct_arg) {
-    // TODO
+    effect->timer = 0;
 }
 
 static void eSlip_mv(eEC_Effect_c* effect, GAME* game) {
-    // TODO
+    return;
 }
 
 static void eSlip_dw(eEC_Effect_c* effect, GAME* game) {
-    // TODO
+    return;
 }