Implement event handlers

src/Client/Client.vcxproj

@@ -207,6 +207,7 @@
     <ClCompile Include="D3D9Api.c" />
     <ClCompile Include="DefaultSet.c" />
     <ClCompile Include="Bitmap.c" />
+    <ClCompile Include="EventHandler.c" />
     <ClCompile Include="ExtMath.c" />
     <ClCompile Include="FastColour.c" />
     <ClCompile Include="GraphicsCommon.c" />

src/Client/Client.vcxproj.filters

@@ -73,6 +73,9 @@
     <Filter Include="Header Files\Events">
       <UniqueIdentifier>{a912f0d5-3ceb-4e7e-ba4e-28170c634047}</UniqueIdentifier>
     </Filter>
+    <Filter Include="Source Files\Events">
+      <UniqueIdentifier>{03efa5de-9e49-4185-bb40-fa5e5a2846e6}</UniqueIdentifier>
+    </Filter>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="NotchyGenerator.h">
@@ -230,5 +233,8 @@
     <ClCompile Include="D3D9Api.c">
       <Filter>Source Files\Graphics</Filter>
     </ClCompile>
+    <ClCompile Include="EventHandler.c">
+      <Filter>Source Files\Events</Filter>
+    </ClCompile>
   </ItemGroup>
 </Project>

src/Client/D3D9Api.h

@@ -4,6 +4,25 @@
 #include <d3d9caps.h>
 #include <d3d9types.h>
 
+/* Abstracts Direct3D9 3D graphics rendering API.
+   Copyright 2014-2017 ClassicalSharp | Licensed under BSD-3
+*/
+
+/* Maximum number of matrices that go on a stack. */
+#define MatrixStack_Capacity 24
+
+typedef struct MatrixStack {
+
+	/* Raw array of matrices.*/
+	Matrix Stack[MatrixStack_Capacity];
+
+	/* Current active matrix. */
+	Int32 Index;
+
+	/* Type of transformation this stack is for. */
+	D3DTRANSFORMSTATETYPE TransformType;
+} MatrixStack;
+
 D3DPRIMITIVETYPE d3d9_modeMappings[2] = { D3DPT_TRIANGLELIST, D3DPT_LINELIST };
 D3DFORMAT d3d9_depthFormats[6] = { D3DFMT_D32, D3DFMT_D24X8, D3DFMT_D24S8, D3DFMT_D24X4S4, D3DFMT_D16, D3DFMT_D15S1 };
 D3DFORMAT d3d9_viewFormats[4] = { D3DFMT_X8R8G8B8, D3DFMT_R8G8B8, D3DFMT_R5G6B5, D3DFMT_X1R5G5B5 };

src/Client/EventHandler.c

@@ -0,0 +1,49 @@
+#include "EventHandler.h"
+#include "ErrorHandler.h"
+
+void EventHandler_Register(void** handlers, Int32* count, void* handler) {
+	for (int i = 0; i < *count; i++) {
+		if (handlers[i] == handler) return;
+	}
+
+	if (*count == EventHandler_Size) {
+		ErrorHandler_Fail(String_FromConstant("Unable to add another event handler"));
+	} else {
+		handlers[*count] = handler;
+		*count++;
+	}
+}
+
+void EventHandler_Unregister(void** handlers, Int32* count, void* handler) {
+	for (int i = 0; i < *count; i++) {
+		if (handlers[i] != handler) continue;
+
+		// Remove this event handler from the list
+		for (int j = i; j < *count - 1; j++) {
+			handlers[j] = handlers[j + 1];
+		}
+		handlers[*count - 1] = NULL;
+
+		*count--;
+		return;
+	}
+}
+
+
+void EventHandler_Raise_Void(Event_Void* handlers, Int32 handlersCount) {
+	for (int i = 0; i < handlersCount; i++) {
+		handlers[i]();
+	}
+}
+
+void EventHandler_Raise_Int32(Event_Int32* handlers, Int32 handlersCount, Int32 arg) {
+	for (int i = 0; i < handlersCount; i++) {
+		handlers[i](arg);
+	}
+}
+
+void EventHandler_Raise_Float32(Event_Float32* handlers, Int32 handlersCount, Real32 arg) {
+	for (int i = 0; i < handlersCount; i++) {
+		handlers[i](arg);
+	}
+}

src/Client/GraphicsAPI.h

@@ -58,7 +58,7 @@ void Gfx_BindTexture(Int32 texId);
 void Gfx_DeleteTexture(Int32* texId);
 
 /* Sets whether texturing is applied when rasterizing primitives. */
-bool Gfx_SetTexturing(bool enabled);
+void Gfx_SetTexturing(bool enabled);
 
 
 /* Sets whether fog is currently enabled. */

src/Client/Platform.h

@@ -31,6 +31,9 @@ void Platform_MemCpy(void* dst, void* src, UInt32 numBytes);
 /* Logs a message to console (if attached). Implictly puts each entry on a newline. */
 void Platform_Log(String message);
 
+/* Generates a new random uuid / guid. */
+void Platform_NewUuid(UInt8* uuid);
+
 
 /* Returns whether a file with the given name exists. */
 bool Platform_FileExists(String path);

src/Client/World.c

@@ -3,11 +3,12 @@
 #include "ErrorHandler.h"
 #include "String.h"
 #include "WorldEnv.h"
+#include "Platform.h"
 
 void World_Reset() {
 	World_Width = 0; World_Height = 0; World_Length = 0;
 	World_Blocks = NULL; World_BlocksSize = 0;
-	World_Uuid = Guid.NewGuid();
+	Platform_NewUuid(World_Uuid);
 }
 
 void World_SetNewMap(BlockID* blocks, Int32 blocksSize, Int32 width, Int32 height, Int32 length) {
@@ -22,8 +23,8 @@ void World_SetNewMap(BlockID* blocks, Int32 blocksSize, Int32 width, Int32 heigh
 	if (WorldEnv_EdgeHeight == -1) {
 		WorldEnv_EdgeHeight = height / 2;
 	}
-	if (WorldEnv_CloudHeight == -1) {
-		WorldEnv_CloudHeight = height + 2;
+	if (WorldEnv_CloudsHeight == -1) {
+		WorldEnv_CloudsHeight = height + 2;
 	}
 }
 

src/Client/WorldEvents.h

@@ -11,7 +11,8 @@ Event_Void WorldEvents_NewMap[EventHandler_Size];
 Int32 WorldEvents_NewMapCount = 0;
 
 /* Raises NewMap event. */
-void WorldEvents_RaiseNewMap();
+#define WorldEvents_RaiseNewMap()\
+EventHandler_Raise_Void(WorldEvents_NewMap, WorldEvents_NewMapCount);
 
 
 /* Raised when a portion of the world is read and decompressed, or generated.
@@ -20,23 +21,26 @@ Event_Float32 WorldEvents_MapLoading[EventHandler_Size];
 Int32 WorldEvents_MapLoadingCount = 0;
 
 /* Raises MapLoading event. */
-void WorldEvents_RaiseMapLoading(Real32 progress);
+#define WorldEvents_RaiseMapLoading(progress)\
+EventHandler_Raise_Float32(WorldEvents_MapLoading, WorldEvents_MapLoadingCount, progress);
 
 
 /* Raised when new world has finished loading and the player can now interact with it. */
-Event_Void WorldEvents_NewMapLoaded[EventHandler_Size];
-Int32 WorldEvents_NewMapLoadedCount = 0;
+Event_Void WorldEvents_MapLoaded[EventHandler_Size];
+Int32 WorldEvents_MapLoadedCount = 0;
 
 /* Raises NewMapLoaded event. */
-void WorldEvents_RaiseNewMapLoaded();
+#define WorldEvents_RaiseMapLoaded()\
+EventHandler_Raise_Void(WorldEvents_MapLoaded, WorldEvents_MapLoadedCount);
 
 
 /* Raised when an environment variable of the world is changed by the user, CPE, or WoM config. */
-Event_Int32 WorldEvents_EnvVariableChanged[EventHandler_Size];
-Int32 WorldEvents_EnvVariableChangedCount = 0;
+Event_Int32 WorldEvents_EnvVarChanged[EventHandler_Size];
+Int32 WorldEvents_EnvVarChangedCount = 0;
 
 /* Raises EnvVariableChanged event. */
-void WorldEvents_RaiseEnvVariableChanged(Int32 envVar);
+#define WorldEvents_RaiseEnvVariableChanged(envVar)\
+EventHandler_Raise_Int32(WorldEvents_EnvVarChanged, WorldEvents_EnvVarChangedCount, envVar);
 
 
 /* Environment variable identifiers*/