Day 43 complete

project/platform/float_ops.hpp

@@ -0,0 +1,17 @@
+#pragma once
+#if INTELLISENSE_DIRECTIVES
+#include "types.hpp"
+#include "intrinsics.hpp"
+#endif
+
+#define mili_accuracy  0.001
+#define micro_accuracy 0.00001
+#define nano_accuracy  0.000000001
+
+b32 is_nearly_zero( f32 value, f32 accuracy = mili_accuracy ) {
+	return abs(value) < accuracy;	
+}
+
+f32 square( f32 value ) {
+	return value * value;
+}

project/platform/generics.hpp

@@ -12,3 +12,10 @@ void swap( Type& a, Type& b )
 #define Zero( type ) tmpl_zero<type>()
 template< class Type >
 constexpr Type tmpl_zero();
+
+// Custom casting trait for when you cannot define an implicit cast ergonomically.
+#define cast( type, obj ) tmpl_cast<type, decltype(obj)>( obj )
+template< class Type, class OtherType >
+constexpr Type tmpl_cast( OtherType obj ) {
+	static_assert( false, "No overload templated cast defined for type combination. Define this using an overload of tmpl_cast specialization." );
+}

project/platform/types.hpp

@@ -38,6 +38,9 @@
 #define F64_MIN 2.2250738585072014e-308
 #define F64_MAX 1.7976931348623157e+308
 
+#define F32_EPSILON 1.1920929e-7f
+#define F64_EPSILON 2.220446049250313e-16
+
 #if defined( COMPILER_MSVC )
 #	if _MSC_VER < 1300
 typedef unsigned char  u8;

project/platform/win32/win32_platform.cpp

@@ -936,6 +936,7 @@ WinMain( HINSTANCE instance, HINSTANCE prev_instance, LPSTR commandline, int sho
 			engine_api_load_time = engine_api_current_time;
 			unload_engine_module_api( & engine_api );
 			engine_api = load_engine_module_api();
+			engine_api.on_module_reload( & engine_memory, & platform_api );
 		} while (0);