From 5664fd34a2f0317a276249762512d1a479fd7585 Mon Sep 17 00:00:00 2001
From: Stanislaw Halik <sthalik@misaki.pl>
Date: Wed, 23 Feb 2022 16:47:24 +0100
Subject: flush

---
 atlas.cpp | 47 +++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 41 insertions(+), 6 deletions(-)

(limited to 'atlas.cpp')

diff --git a/atlas.cpp b/atlas.cpp
index d6b6a0c2..4528393f 100644
--- a/atlas.cpp
+++ b/atlas.cpp
@@ -37,7 +37,9 @@ std::array<Vector2, 4> atlas_texture::texcoords_for_id(int id_) const
     }};
 }
 
-std::array<Vector3, 4> atlas_texture::floor_quad(Vector3 center, Vector2 size)
+using vertex_array_type = atlas_texture::vertex_array_type;
+
+vertex_array_type atlas_texture::floor_quad(Vector3 center, Vector2 size)
 {
     float x = size[0]*.5f, y = size[1]*.5f;
     return {{
@@ -48,14 +50,47 @@ std::array<Vector3, 4> atlas_texture::floor_quad(Vector3 center, Vector2 size)
     }};
 }
 
-std::array<Vector3, 4> atlas_texture::wall_quad(Vector3 center, Vector3 size)
+vertex_array_type atlas_texture::wall_quad_N(Vector3 center, Vector3 size)
+{
+    float x = size[0]*.5f, y = size[1]*.5f, z = size[2];
+    return {{
+        { x + center[0], y + center[1],     center[2] },
+        { x + center[0], y + center[1], z + center[2] },
+        {-x + center[0], y + center[1],     center[2] },
+        {-x + center[0], y + center[1], z + center[2] },
+    }};
+}
+
+vertex_array_type atlas_texture::wall_quad_W(Vector3 center, Vector3 size)
+{
+    float x = size[0]*.5f, y = size[1]*.5f, z = size[2];
+    return {{
+        {-x + center[0],  y + center[1],     center[2] },
+        {-x + center[0],  y + center[1], z + center[2] },
+        {-x + center[0], -y + center[1],     center[2] },
+        {-x + center[0], -y + center[1], z + center[2] },
+    }};
+}
+
+vertex_array_type atlas_texture::wall_quad_S(Vector3 center, Vector3 size)
+{
+    float x = size[0]*.5f, y = size[1]*.5f, z = size[2];
+    return {{
+        { x + center[0], -y + center[1],     center[2] },
+        { x + center[0], -y + center[1], z + center[2] },
+        {-x + center[0], -y + center[1],     center[2] },
+        {-x + center[0], -y + center[1], z + center[2] },
+    }};
+}
+
+vertex_array_type atlas_texture::wall_quad_E(Vector3 center, Vector3 size)
 {
     float x = size[0]*.5f, y = size[1]*.5f, z = size[2];
     return {{
-        { x + center[0], -y + center[1], +    center[2] },
-        { x + center[0], -y + center[1], z+    center[2] },
-        {-x + center[0],  y + center[1], +    center[2] },
-        {-x + center[0],  y + center[1], z+    center[2] },
+        { x + center[0], -y + center[1],     center[2] },
+        { x + center[0], -y + center[1], z + center[2] },
+        { x + center[0],  y + center[1],     center[2] },
+        { x + center[0],  y + center[1], z + center[2] },
     }};
 }
 
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