From 3b3f47aa0d55709595613c7a7b926b4b9ee523a9 Mon Sep 17 00:00:00 2001
From: Christian Semmler <mail@csemmler.com>
Date: Fri, 29 Dec 2023 20:03:42 -0500
Subject: [PATCH] Some WIP rect

---
 LEGO1/legoomni.cpp | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 LEGO1/legoomni.h   | 13 +++++++++++++
 LEGO1/mxrect32.h   |  8 ++++++++
 3 files changed, 67 insertions(+)

diff --git a/LEGO1/legoomni.cpp b/LEGO1/legoomni.cpp
index ddf0e454..7acb592c 100644
--- a/LEGO1/legoomni.cpp
+++ b/LEGO1/legoomni.cpp
@@ -695,6 +695,52 @@ MxResult Start(MxDSAction* p_dsAction)
 	return MxOmni::GetInstance()->Start(p_dsAction);
 }
 
+// Probably should be somewhere else
+// FUNCTION: LEGO1 0x100b6e10
+MxBool FUN_100b6e10(
+	MxS32 p_bitmapWidth,
+	MxS32 p_bitmapHeight,
+	MxS32 p_videoParamWidth,
+	MxS32 p_videoParamHeight,
+	MxS32* p_left,
+	MxS32* p_top,
+	MxS32* p_right,
+	MxS32* p_bottom,
+	MxS32* p_width,
+	MxS32* p_height
+)
+{
+	MxPoint32 topLeft(*p_left, *p_top);
+	MxRect32 bitmapRect(MxPoint32(0, 0), MxSize32(p_bitmapWidth, p_bitmapHeight));
+
+	MxPoint32 bottomRight(*p_right, *p_bottom);
+	MxRect32 videoParamRect(MxPoint32(0, 0), MxSize32(p_videoParamWidth, p_videoParamHeight));
+
+	MxRect32 rect(0, 0, *p_width, *p_height);
+	rect.AddPoint(topLeft);
+
+	if (!rect.IntersectsWith(bitmapRect))
+		return FALSE;
+
+	rect.Intersect(bitmapRect);
+	rect.SubtractPoint(topLeft);
+	rect.AddPoint(bottomRight);
+
+	if (!rect.IntersectsWith(videoParamRect))
+		return FALSE;
+	rect.Intersect(videoParamRect);
+	rect.SubtractPoint(bottomRight);
+
+	*p_left += rect.GetLeft();
+	*p_top += rect.GetTop();
+	*p_right += rect.GetLeft();
+	*p_bottom += rect.GetTop();
+	*p_width = rect.GetWidth();
+	*p_height = rect.GetHeight();
+
+	return TRUE;
+}
+
 // FUNCTION: LEGO1 0x100b6ff0
 void MakeSourceName(char* p_output, const char* p_input)
 {
diff --git a/LEGO1/legoomni.h b/LEGO1/legoomni.h
index dff06fb5..2aaba4cc 100644
--- a/LEGO1/legoomni.h
+++ b/LEGO1/legoomni.h
@@ -166,6 +166,19 @@ void FUN_10015820(MxU32, MxU32);
 LegoEntity* FindEntityByAtomIdOrEntityId(const MxAtomId& p_atom, MxS32 p_entityid);
 MxDSAction& GetCurrentAction();
 
+MxBool FUN_100b6e10(
+	MxS32 p_bitmapWidth,
+	MxS32 p_bitmapHeight,
+	MxS32 p_videoParamWidth,
+	MxS32 p_videoParamHeight,
+	MxS32* p_left,
+	MxS32* p_top,
+	MxS32* p_right,
+	MxS32* p_bottom,
+	MxS32* p_width,
+	MxS32* p_height
+);
+
 void PlayMusic(MxU32 p_index);
 void SetIsWorldActive(MxBool p_isWorldActive);
 void RegisterScripts();
diff --git a/LEGO1/mxrect32.h b/LEGO1/mxrect32.h
index c05d5c67..f3695a15 100644
--- a/LEGO1/mxrect32.h
+++ b/LEGO1/mxrect32.h
@@ -56,6 +56,14 @@ class MxRect32 {
 		this->m_bottom += p_point.GetY();
 	}
 
+	inline void SubtractPoint(const MxPoint32& p_point)
+	{
+		this->m_left -= p_point.GetX();
+		this->m_top -= p_point.GetY();
+		this->m_right -= p_point.GetX();
+		this->m_bottom -= p_point.GetY();
+	}
+
 	inline void SetSize(const MxSize32& p_size)
 	{
 		this->m_right = p_size.GetWidth();