From 93cf929f29dea490ed60e5300cacdd99886c988e Mon Sep 17 00:00:00 2001
From: Chris Xiong <chirs241097@gmail.com>
Date: Sat, 9 Sep 2023 20:09:50 -0400
Subject: Add the standalone portion of mapman.

---
 mapman/src/utils.cpp | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 mapman/src/utils.cpp

(limited to 'mapman/src/utils.cpp')

diff --git a/mapman/src/utils.cpp b/mapman/src/utils.cpp
new file mode 100644
index 0000000..f01d946
--- /dev/null
+++ b/mapman/src/utils.cpp
@@ -0,0 +1,40 @@
+#include "utils.hpp"
+
+#include <QColor>
+#include <QImage>
+
+rgb_t modify_color(rgb_t c, uint8_t variant)
+{
+    int m;
+    switch (variant)
+    {
+        case 0: m = 180; break;
+        case 1: m = 200; break;
+        case 2: m = 255; break;
+        case 3: m = 135; break;
+        default: m = 0; break;
+    }
+    return {uint8_t(m * c.r / 255),
+            uint8_t(m * c.g / 255),
+            uint8_t(m * c.b / 255)};
+}
+
+QColor rgb2qcolor(rgb_t c) {return QColor(c.r, c.g, c.b);}
+
+QPixmap pixmap_of_map_data(const std::array<uint8_t, 128 * 128> &map_data)
+{
+    QImage ret(128, 128, QImage::Format_ARGB32);
+    for (size_t i = 0; i < 128; ++i)
+        for (size_t j = 0; j < 128; ++j)
+        {
+            uint8_t d = map_data[j * 128 + i];
+            uint8_t b = d >> 2;
+            uint8_t v = d & 3;
+            QColor color = Qt::GlobalColor::transparent;
+            if (b > 0 && b < 62)
+                color = rgb2qcolor(modify_color(MAP_COLORS[b], v));
+            ret.setPixelColor(i, j, color);
+        }
+    return QPixmap::fromImage(ret);
+}
+
-- 
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