got things compiling with mingw

CMakeLists.txt

@@ -3,10 +3,20 @@ cmake_minimum_required(VERSION 3.25)
 project(FastNuclearSim VERSION 1.0)
 
 set(CMAKE_CXX_STANDARD 26)
-set(CMAKE_CXX_FLAGS "-g -O3 -I/usr/include/freetype2")
+
+if(WIN32)
+	set(CMAKE_CXX_FLAGS "-g -O3")
+else()
+	set(CMAKE_CXX_FLAGS "-g -O3 -I/usr/include/freetype2")
+endif()
 
 file(GLOB_RECURSE SOURCES src/*.cpp)
 
 add_executable(FastNuclearSim ${SOURCES})
-target_link_libraries(FastNuclearSim PUBLIC stdc++ m GLEW glfw GL freetype assimp jsoncpp)
+
+if(WIN32)
+	target_link_libraries(FastNuclearSim PUBLIC stdc++ m brotlidec assimp-5 glew32 opengl32 glfw3 freetype jsoncpp zlibstatic)
+else()
+	target_link_libraries(FastNuclearSim PUBLIC stdc++ m GLEW glfw GL freetype assimp jsoncpp)
+endif()
 

src/coolant/evaporator.cpp

@@ -42,14 +42,14 @@ void evaporator::update(double dt)
 
 	double P = 10000;									// Pa
 	double K = conversions::temperature::c_to_k(heat);	// K
-	double R = sim::constants::R;						// J/K/mol
+	double R = util::constants::R;						// J/K/mol
 
-	double n_g = air / constants::M_air;	// mol
-	double V_g = (volume - level) * 0.001;	// m^3
+	double n_g = air / util::constants::M_air;	// mol
+	double V_g = (volume - level) * 0.001;		// m^3
 
 	double n = (P * V_g) / (R * K);	// mol
 	
-	air = n * constants::M_air;
+	air = n * util::constants::M_air;
 	update_base(dt);
 }
 

src/coolant/fluid_holder.cpp

@@ -98,19 +98,19 @@ double fluid_holder::calc_pressure(double heat, double volume, double mol)
 {
 	double V = volume * 0.001;
 
-	return V == 0 ? 0 : (mol * heat * constants::R) / V;
+	return V == 0 ? 0 : (mol * heat * util::constants::R) / V;
 }
 
 double fluid_holder::calc_pressure_mol(double heat, double volume, double pressure)
 {
 	double V = volume * 0.001;
 
-	return (pressure * V) / (constants::R * heat);
+	return (pressure * V) / (util::constants::R * heat);
 }
 
 double fluid_holder::get_pressure() const
 {
-	return calc_pressure(conversions::temperature::c_to_k(heat), get_gas_volume(), fluid.g_to_mol(steam) + air / constants::M_air);
+	return calc_pressure(conversions::temperature::c_to_k(heat), get_gas_volume(), fluid.g_to_mol(steam) + air / util::constants::M_air);
 }
 
 double fluid_holder::get_gas_density() const
@@ -143,10 +143,10 @@ void fluid_holder::update_base(double secs)
 	{
 		double K = conversions::temperature::c_to_k(heat);	// K
 		double P = fluid.vapor_pressure.calc_p(K);			// Pa
-		double R = sim::constants::R;						// J/K/mol
+		double R = util::constants::R;						// J/K/mol
 
-		double J_m = fluid.jPg * fluid.gPmol;							// J/mol
-		double n_g = fluid.g_to_mol(steam) + air / constants::M_air;	// mol
+		double J_m = fluid.jPg * fluid.gPmol;								// J/mol
+		double n_g = fluid.g_to_mol(steam) + air / util::constants::M_air;	// mol
 		double V_g = (volume - level) * 0.001;							// m^3
 
 		double n = (P * V_g) / (R * K) - n_g;	// mol

src/coolant/valve.cpp

@@ -54,7 +54,7 @@ void valve::update(double dt)
 
 		mol = fluid_holder::calc_pressure_mol(src->get_heat_k(), src->get_gas_volume(), pressure1 - remove);
 		
-		mass_a = src->get_air() - mol / constants::M_air;
+		mass_a = src->get_air() - mol / util::constants::M_air;
 		mass_s = src->get_steam() - src->fluid.mol_to_g(mol);
 	}
 
@@ -65,7 +65,7 @@ void valve::update(double dt)
 
 		mol = fluid_holder::calc_pressure_mol(dst->get_heat_k(), dst->get_gas_volume(), pressure2 - remove);
 
-		mass_a = dst->get_air() - mol / constants::M_air;
+		mass_a = dst->get_air() - mol / util::constants::M_air;
 		mass_s = dst->get_steam() - dst->fluid.mol_to_g(mol);
 	}
 

src/main.cpp

@@ -1,6 +1,4 @@
 
-#include <sys/time.h>
-
 #include <random>
 #include <sstream>
 #include <fstream>
@@ -18,33 +16,29 @@
 #include "graphics/window.hpp"
 #include "graphics/camera.hpp"
 
+#include "util/time.hpp"
 #include "system.hpp"
 #include "tests.hpp"
 
 using namespace sim;
 
-unsigned long get_now()
-{
-	struct timeval tv;
-	gettimeofday(&tv, nullptr);
-	return (unsigned long)tv.tv_sec * 1000000 + tv.tv_usec;
-}
-
 int main()
 {
+#ifndef _WIN32
 	feenableexcept(FE_DIVBYZERO | FE_INVALID | FE_OVERFLOW);
+#endif
 	
 //	tests::run();
 //	return 0;
 
 	graphics::window::create();
 
-	long clock = get_now();
+	long clock = util::time::get_now();
 	double at = 0;
 
 	while(!graphics::window::should_close())
 	{
-		long now = get_now();
+		long now = util::time::get_now();
 		long passed = now - clock;
 		double dt = (double)passed / 1e6;
 		clock += passed;

src/reactor/reactor.cpp

@@ -149,7 +149,7 @@ void reactor::toggle_selected()
 void reactor::update_tile(double secs, int i, int x, int y)
 {
 	int nb_lookup[4][2] = {{-1, 0}, {1, 0}, {0, -1}, {0, 1}};
-	std::shuffle(nb_lookup, &nb_lookup[3], sim::random::gen);
+	std::shuffle(nb_lookup, &nb_lookup[3], util::random::gen);
 
 	for(int j = 0; j < 4; j++)
 	{
@@ -165,7 +165,7 @@ void reactor::update_tile(double secs, int i, int x, int y)
 
 void reactor::update_interactions(int* rods_lookup, double secs)
 {
-	std::shuffle(rods_lookup, &rods_lookup[size - 1], sim::random::gen);
+	std::shuffle(rods_lookup, &rods_lookup[size - 1], util::random::gen);
 
 	for(int id = 0; id < size; id++)
 	{

src/util/constants.hpp

@@ -1,7 +1,7 @@
 
 #pragma once
 
-namespace sim::constants
+namespace sim::util::constants
 {
 	constexpr double R = 8.31446261815324; // molar gas constant, J/mol/K
 	constexpr double R_air = 0.2870500676; // specific gas constant of dry air, J/g/K

src/util/random.cpp

@@ -1,7 +1,7 @@
 
 #include "random.hpp"
 
-using namespace sim;
+using namespace sim::util;
 
 std::mt19937 random::gen;
 

src/util/random.hpp

@@ -3,7 +3,7 @@
 
 #include <random>
 
-namespace sim::random
+namespace sim::util::random
 {
 
 extern std::mt19937 gen;

src/util/time.cpp

@@ -0,0 +1,38 @@
+
+#ifdef _WIN32
+#include <windows.h>
+#else
+#include <sys/time.h>
+#include <unistd.h>
+#endif
+
+#include "time.hpp"
+
+using namespace sim::util;
+
+
+unsigned long time::get_now()
+{
+#ifdef _WIN32
+	FILETIME ft;
+    ULARGE_INTEGER ul;
+    GetSystemTimeAsFileTime(&ft);
+    ul.LowPart = ft.dwLowDateTime;
+    ul.HighPart = ft.dwHighDateTime;
+    return (unsigned long)(ul.QuadPart / 10 - 11644473600000000ULL);
+#else
+	struct timeval tv;
+	gettimeofday(&tv, nullptr);
+	return (unsigned long)tv.tv_sec * 1000000 + tv.tv_usec;
+#endif
+}
+
+void time::sleep(unsigned long usec)
+{
+#ifdef _WIN32
+	Sleep(usec / 1000);
+#else
+	usleep(usec);
+#endif
+}
+

src/util/time.hpp

@@ -0,0 +1,11 @@
+
+#pragma once
+
+namespace sim::util::time
+{
+
+unsigned long get_now();
+void sleep(unsigned long usec);
+
+};
+