-remove "SIMD" option from "compile_wasm.py" (new Emscripten hasn't that option)

-removed some unnecessary variables
-started C-API implemantation:
 * added C-API option to Meson (build included to main library)
 * refactored some code (moved some code form templates to final code, removed delegates from system)
 * moved templates outside EntityManager to make it possible to use in different functions

c-api/meson.build

@@ -0,0 +1,7 @@
+src += files(
+	'manager.d'
+)
+
+c_src = files(
+	'test.c'
+)

demos/compile_wasm.py

@@ -75,7 +75,7 @@ for arg in sys.argv[1:]:
     elif(arg == '-opt'):
         shared_flags += '-O3 '
         ldc_flags += '-release -enable-inlining '
-        emc_flags += '--llvm-lto 3 -s SIMD=1 '
+        emc_flags += '--llvm-lto 3 '
     elif(arg == '-quiet'):
         emc_flags += "-Wl,--no-check-features "
     elif(arg == '--clean'):

meson.build

@@ -5,11 +5,13 @@ betterC_opt = get_option('betterC')
 BuildDemos_opt = get_option('BuildDemos')
 BuildTests_opt = get_option('BuildTests')
 LTO_otp = get_option('LTO')
+C_API_opt = get_option('C-API')
 
 summary('betterC enabled', betterC_opt)
 summary('build demos', BuildDemos_opt)
 summary('build tests', BuildTests_opt)
 summary('LTO enabled', LTO_otp)
+summary('C-API enabled', C_API_opt)
 
 meson_minimum_version = '>=0.57.1'
 assert(meson.version().version_compare(meson_minimum_version), 'Newer verson of meson required, current version: @0@, required: @1@'.format(meson.version(), meson_minimum_version))
@@ -18,7 +20,14 @@ assert(meson.version().version_compare(meson_minimum_version), 'Newer verson of
 src = files()
 subdir('source')
 
-inc = include_directories('source/')
+inc = [include_directories('source/')]
+
+#C API files
+if C_API_opt
+	c_src = files()
+	subdir('c-api')
+	inc += include_directories('c-api/')
+endif
 
 # Arguments
 args = []

meson_options.txt

@@ -2,3 +2,4 @@ option('betterC', type: 'boolean', value: false)
 option('BuildDemos', type: 'boolean', value: false)
 option('BuildTests', type: 'boolean', value: false)
 option('LTO', type: 'boolean', value: false)
+option('C-API', type: 'boolean', value: false)

source/bubel/ecs/system.d

@@ -89,7 +89,7 @@ struct System
         return cast(const(char)[]) m_name;
     }
 
-package:
+//package:
 
     void destroy()
     {
@@ -170,7 +170,7 @@ package:
 
     //void function(ref EntityManager.CallData data) m_update;
     void* m_update; ///workaroud for DMD bug with upper line
-    void delegate() m_update_delegate;
+    //void delegate() m_update_delegate;
 
     //void function(void* system_pointer) m_enable;
     //void function(void* system_pointer) m_disable;
@@ -198,6 +198,6 @@ package:
 
     //void function(ref EntityManager.CallData data) m_initialize;
     //void function(ref EntityManager.CallData data) m_deinitilize;
-    void* m_initialize;
-    void* m_deinitilize;
+    // void* m_initialize;
+    // void* m_deinitilize;
 }