3 files changed, 42 insertions, 7 deletions
diff --git a/Client/Source/Phy2DLite/Constants.h b/Client/Source/Phy2DLite/Constants.h
index f116ca8..59a8c09 100644
--- a/Client/Source/Phy2DLite/Constants.h
+++ b/Client/Source/Phy2DLite/Constants.h
@@ -5,7 +5,7 @@
 namespace Phy2D
 {
 #if NUMBER_ALIAS == NUMBER_FPM
-#define CONSTANT(name, value) static fixed name = fixed::from_raw_value(value)
+#define CONSTANT(name, value) static constexpr fixed name = fixed::from_raw_value(value)
 
     CONSTANT(_1,    65536);
     CONSTANT(_n1, -65536);
@@ -16,5 +16,27 @@ namespace Phy2D
     CONSTANT(_0_95, 62259);
     CONSTANT(_12,   786432);
 
+#elif NUMBER_ALIAS == NUMBER_FLOAT 
+
+    static const float _1 = 1;
+    static const float _n1 = -1;
+    static const float _0 = 0;
+    static const float _0_01 = 0.01;
+    static const float _0_2 = 0.2;
+    static const float _0_5 = 0.5;
+    static const float _0_95 = 0.95;
+    static const float _12 = 12;
+
+#elif NUMBER_ALIAS == NUMBER_FIX32
+
+    static const float _1 = 1;
+    static const float _n1 = -1;
+    static const float _0 = 0;
+    static const float _0_01 = 0.01;
+    static const float _0_2 = 0.2;
+    static const float _0_5 = 0.5;
+    static const float _0_95 = 0.95;
+    static const float _12 = 12;
+
 #endif
 }
 \ No newline at end of file
diff --git a/Client/Source/Phy2DLite/Settings.h b/Client/Source/Phy2DLite/Settings.h
index 9345b32..6454943 100644
--- a/Client/Source/Phy2DLite/Settings.h
+++ b/Client/Source/Phy2DLite/Settings.h
@@ -1,16 +1,19 @@
 #pragma once
 
-#define NUMBER_FLOAT  1
-#define NUMBER_LIBFIX 2
-#define NUMBER_FPM    3
+#define NUMBER_FLOAT     1
+#define NUMBER_LIBFIX    2
+#define NUMBER_FPM       3
+#define NUMBER_FIX32     4
 
-#define NUMBER_ALIAS  NUMBER_FPM
+#define NUMBER_ALIAS  NUMBER_FIX32
 
 #if NUMBER_ALIAS == NUMBER_LIBFIX
 #include "libfixmath/libfixmath/fixmath.h"
 #elif NUMBER_ALIAS == NUMBER_FPM
 #include "fpm/include/fpm/fixed.hpp"
 #include "fpm/include/fpm/math.hpp"
+#elif NUMBER_ALIAS == NUMBER_FIX32
+#include "fix32/fix32.hpp"
 #endif
 
 namespace Phy2D
@@ -24,10 +27,10 @@ typedef float fixed;
 #define SQRT(a) (sqrt((a)))
 #define SIN(a) (sin((a)))
 #define COS(a) (cos((a)))
+#define PI   (3.1415925f)
 
 #elif  NUMBER_ALIAS == NUMBER_LIBFIX
 
-// 同时一定要开启内联函数扩展，否则执行效率会非常低
 typedef Fix16 fixed;
 #define NUMBER_MAX (fix16_maximum)
 #define NUMBER_MIN (fix16_minimum)
@@ -91,6 +94,16 @@ typedef fpm::fixed_16_16 fixed;
 #define COS(a) (fpm::cos((a)))
 #define PI (fixed::pi())
 
+#elif NUMBER_ALIAS == NUMBER_FIX32
+
+    typedef Fix32 fixed;
+#define NUMBER_MAX (CONST_MAX)
+#define NUMBER_MIN (CONST_MIN)
+#define SQRT(a) ((a).sqrt())
+#define SIN(a) ((a).sin())
+#define COS(a) ((a).cos())
+#define PI (CONST_PI)
+
 #endif
 
 }
 \ No newline at end of file
diff --git a/Client/Source/Phy2DLite/World.cpp b/Client/Source/Phy2DLite/World.cpp
index f20be5f..76e57ea 100644
--- a/Client/Source/Phy2DLite/World.cpp
+++ b/Client/Source/Phy2DLite/World.cpp
@@ -73,7 +73,7 @@ void World::BroadPhase()
 
 void World::Step(fixed dt)
 {
-    fixed inv_dt = dt > _0 ? _1 / dt : _0;
+    fixed inv_dt = dt > _0 ? (fixed)_1 / dt : (fixed)_0;
 
     // Determine overlapping bodies and update contact points.
     BroadPhase();