[Maintenance] Publicly declare decimal subpixels

They are not exclusive to Sariel after all… Part of P0205, funded by [Anonymous] and Yanga.
nmlgc · Jul 17, 2022 · f6d264a · f6d264a
1 parent 3259190
commit f6d264a
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Showing 2 changed files with 21 additions and 16 deletions.
diff --git a/th01/main/boss/b20m.cpp b/th01/main/boss/b20m.cpp
@@ -2330,22 +2330,6 @@ void pascal near pattern_curved_spray_leftright_twice(int &frame)
 	}
 }
 
-// Subpixels with one decimal digit of fractional resolution?! Sure, if you
-// absolutely want those precise multiples of 0.1 in your movement code...
-typedef int decimal_subpixel_t;
-
-struct DecimalSubpixel {
-	decimal_subpixel_t v;
-
-	pixel_t to_pixel() const {
-		return static_cast<pixel_t>(v / 10);
-	}
-};
-
-inline decimal_subpixel_t to_dsp(float pixel_v) {
-	return static_cast<decimal_subpixel_t>(pixel_v * 10);
-}
-
 void pascal near pattern_swaying_leaves(int &frame, int spawn_interval_or_reset)
 {
 	enum {

diff --git a/th01/math/subpixel.hpp b/th01/math/subpixel.hpp
@@ -1,5 +1,6 @@
 // Fixed-point format for expressing world-space coordinates, with 4 bits of
 // fractional resolution.
+// -------------------------------------------------------------------------
 
 #define SUBPIXEL_HPP
 
@@ -104,3 +105,23 @@ struct SPPoint : public SPPointBase<Subpixel> {
 typedef SubpixelBase<subpixel_length_8_t, subpixel_length_8_t> SubpixelLength8;
 typedef SubpixelBase<char, char> Subpixel8;
 typedef SPPointBase<Subpixel8> SPPoint8;
+// -------------------------------------------------------------------------
+
+// Subpixels with one decimal digit of fractional resolution?! Sure, if you
+// absolutely want those precise multiples of 0.1 in your movement code...
+// -------------------------------------------------------------------------
+
+typedef int decimal_subpixel_t;
+
+struct DecimalSubpixel {
+	decimal_subpixel_t v;
+
+	pixel_t to_pixel() const {
+		return static_cast<pixel_t>(v / 10);
+	}
+};
+
+inline decimal_subpixel_t to_dsp(float pixel_v) {
+	return static_cast<decimal_subpixel_t>(pixel_v * 10);
+}
+// -------------------------------------------------------------------------