From 6ca6fce0b2be39db807c0cb6c260fd8cff2c556f Mon Sep 17 00:00:00 2001
From: Bojidar Marinov <bojidar.marinov.bg@gmail.com>
Date: Fri, 29 Mar 2019 13:38:21 +0200
Subject: [PATCH] Allow editing texture UV offsets in Quad properties.

Manual cherrypick of de82ad7a26d6ebb6029a6e60c619f8a310ea2ee6, original code by @cinaera
---
 src/game/editor/popups.cpp | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/src/game/editor/popups.cpp b/src/game/editor/popups.cpp
index a24e1da7c..e34cfcccb 100644
--- a/src/game/editor/popups.cpp
+++ b/src/game/editor/popups.cpp
@@ -838,6 +838,8 @@ int CEditor::PopupPoint(CEditor *pEditor, CUIRect View)
 		PROP_POS_X=0,
 		PROP_POS_Y,
 		PROP_COLOR,
+		PROP_TEX_U,
+		PROP_TEX_V,
 		NUM_PROPS,
 	};
 
@@ -849,11 +851,15 @@ int CEditor::PopupPoint(CEditor *pEditor, CUIRect View)
 
 	int x = pCurrentQuad->m_aPoints[pEditor->m_SelectedQuadPoint].x/1000;
 	int y = pCurrentQuad->m_aPoints[pEditor->m_SelectedQuadPoint].y/1000;
+	int tu = pCurrentQuad->m_aTexcoords[pEditor->m_SelectedQuadPoint].x/1000 * 1024;
+	int tv = pCurrentQuad->m_aTexcoords[pEditor->m_SelectedQuadPoint].y/1000 * 1024;
 
 	CProperty aProps[] = {
 		{"Pos X", x, PROPTYPE_INT_SCROLL, -1000000, 1000000},
 		{"Pos Y", y, PROPTYPE_INT_SCROLL, -1000000, 1000000},
 		{"Color", Color, PROPTYPE_COLOR, -1, pEditor->m_Map.m_lEnvelopes.size()},
+		{"Tex U", tu, PROPTYPE_INT_SCROLL, -1000000, 1000000},
+		{"Tex V", tv, PROPTYPE_INT_SCROLL, -1000000, 1000000},
 		{0},
 	};
 
@@ -865,6 +871,8 @@ int CEditor::PopupPoint(CEditor *pEditor, CUIRect View)
 
 	float OffsetX = NewVal*1000-x*1000;
 	float OffsetY = NewVal*1000-y*1000;
+	float OffsetU = NewVal*1000/1024-tu*1000/1024;
+	float OffsetV = NewVal*1000/1024-tv*1000/1024;
 
 	for(int i = 0; i < lQuads.size(); ++i)
 	{
@@ -893,6 +901,18 @@ int CEditor::PopupPoint(CEditor *pEditor, CUIRect View)
 				}
 			}
 		}
+		if(Prop == PROP_TEX_U)
+		{
+			for(int v = 0; v < 4; v++)
+				if(pEditor->m_SelectedPoints&(1<<v))
+					lQuads[i]->m_aTexcoords[v].x += OffsetU;
+		}
+		if(Prop == PROP_TEX_V)
+		{
+			for(int v = 0; v < 4; v++)
+				if(pEditor->m_SelectedPoints&(1<<v))
+					lQuads[i]->m_aTexcoords[v].y += OffsetV;
+		}
 	}
 
 	return 0;