enable separation of game and engine components

demo/demo.cpp

@@ -0,0 +1,19 @@
+#include "demo.h"
+
+void game::run(SDL_Renderer* renderer)
+{
+	ray2D ray = ray2D::trace(vector2(0, 201), vector2(1, 0));
+	ray2D ray2 = ray2D::trace(vector2(201, 0), vector2(0, 1));
+	SDL_RenderDrawLine(renderer, ray.start.x, ray.start.y, ray.end.x, ray.end.y);
+	SDL_RenderDrawLine(renderer, ray2.start.x, ray2.start.y, ray2.end.x, ray2.end.y);
+	std::cout << global::entList.at(0) << std::endl;
+	if (ray.hitEnt)
+		std::cout << std::hex << ray.hitEnt << std::endl;
+
+	//demo rays with moving object
+	global::entList.at(0)->x = global::mousePos.x;
+	global::entList.at(0)->y = global::mousePos.y;
+
+	global::entList.run(renderer);
+	global::entList3D.run(renderer);
+}

demo/demo.h

@@ -0,0 +1,19 @@
+#pragma once
+#include <Windows.h>
+#include <stdio.h>
+#include <iostream>
+#include "SDL.h"
+
+#include "../stuff/objects/vector2.h"
+#include "../stuff/objects/vector3.h"
+#include "../stuff/objects/ray2D.h"
+
+#include "../stuff/globals/globals.h"
+#include "../stuff/callbacks/callbacks.h"
+#include "../stuff/objects/square.h"
+#include "../stuff/objects/argb.h"
+
+namespace game
+{
+	void run(SDL_Renderer* renderer);
+}

main.cpp

@@ -3,13 +3,7 @@
 #include <iostream>
 #include "SDL.h"
 
-#include "stuff/objects/vector2.h"
-#include "stuff/objects/vector3.h"
-#include "stuff/objects/ray2D.h"
-
-#include "stuff/globals/globals.h"
-#include "stuff/callbacks/callbacks.h"
-#include "stuff/objects/square.h"
+#include "demo/demo.h"
 
 int main(int argc, char** argv)
 {
@@ -21,34 +15,20 @@ int main(int argc, char** argv)
 	window = SDL_CreateWindow("threedee", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 1280, 720, SDL_WINDOW_SHOWN);
 	surface = SDL_GetWindowSurface(window);
 	renderer = SDL_CreateRenderer(window, -1, NULL);
-	SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);
+	SETRENDER_WHITE;
 	SDL_Event eventHandler;
 
 	global::entList.push_back(&square(200, 200, 50));
 
-	//global::entList3D.push_back(cube(200, 200, 100, 50));
-
 	while (global::running)
 	{
 		callbacks::handleCallbacks(&eventHandler);
 
-		SDL_SetRenderDrawColor(renderer, 0, 0, 0, 0);
-		SDL_RenderFillRect(renderer, NULL);
-		SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);
-
-		ray2D ray = ray2D::trace(vector2(0, 201), vector2(1, 0));
-		ray2D ray2 = ray2D::trace(vector2(201, 0), vector2(0, 1));
-		SDL_RenderDrawLine(renderer, ray.start.x, ray.start.y, ray.end.x, ray.end.y);
-		SDL_RenderDrawLine(renderer, ray2.start.x, ray2.start.y, ray2.end.x, ray2.end.y);
-		std::cout << global::entList.at(0) << std::endl;
-		if (ray.hitEnt)
-			std::cout << std::hex << ray.hitEnt << std::endl;
-		//demo rays with moving object
-		global::entList.at(0)->x = global::mousePos.x;
-		global::entList.at(0)->y = global::mousePos.y;
-
-		global::entList.run(renderer);
-		global::entList3D.run(renderer);
+		SETRENDER_BLACK;
+		SDL_RenderClear(renderer);
+		SETRENDER_WHITE;
+
+		game::run(renderer);
 
 		SDL_RenderPresent(renderer);
 		SDL_Delay(1);

stuff/objects/argb.h

@@ -0,0 +1,22 @@
+#pragma once
+#include <Windows.h>
+#include "SDL.h"
+struct argb
+{
+	BYTE a, r, g, b;
+	argb(BYTE a_, BYTE r_, BYTE g_, BYTE b_)
+	{
+		a = a_;
+		r = r_;
+		g = g_;
+		b = b_;
+	}
+};
+
+#define WHITE argb(255, 255, 255, 255)
+#define RED argb(255, 255, 0, 0)
+#define BLUE argb(255, 0, 0, 255)
+#define GREEN argb(255, 0, 255, 0)
+
+#define SETRENDER_WHITE SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255)
+#define SETRENDER_BLACK SDL_SetRenderDrawColor(renderer, 0, 0, 0, 0)

stuff/objects/ray2D.h

@@ -1,14 +1,9 @@
 #pragma once
+#include <numeric>
 #include "../globals/globals.h"
 
 #include "vector2.h"
 
-//temp
-bool inRect(vector2 point, vector2 a, vector2 b)
-{
-	return (point.x > a.x && point.y > a.y && point.x < b.x && point.y < b.y);
-}
-
 struct ray2D
 {
 	vector2 start;
@@ -45,4 +40,9 @@ struct ray2D
 		}
 		return ray;
 	}
+	//temp
+	static bool inRect(vector2 point, vector2 a, vector2 b)
+	{
+		return (point.x > a.x && point.y > a.y && point.x < b.x&& point.y < b.y);
+	}
 };

stuff/objects/square.h

@@ -2,6 +2,7 @@
 #include "SDL.h"
 
 #include "vector2.h"
+#include "argb.h"
 /*
 squares are the basic 2D entity
 */
@@ -18,6 +19,7 @@ struct square : public vector2
 	}
 	void run(SDL_Renderer* renderer)
 	{
+		SETRENDER_WHITE;
 		SDL_Rect rect{ this->x, this->y, this->radius, this->radius };
 		SDL_RenderFillRect(renderer, &rect);
 	}

threedee.vcxproj

@@ -154,6 +154,7 @@
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
+    <ClInclude Include="demo\demo.h" />
     <ClInclude Include="sdl\include\begin_code.h" />
     <ClInclude Include="sdl\include\close_code.h" />
     <ClInclude Include="sdl\include\SDL.h" />
@@ -241,6 +242,7 @@
     <ClInclude Include="sdl\include\SDL_video.h" />
     <ClInclude Include="sdl\include\SDL_vulkan.h" />
     <ClInclude Include="stuff\callbacks\callbacks.h" />
+    <ClInclude Include="stuff\objects\argb.h" />
     <ClInclude Include="stuff\objects\camera.h" />
     <ClInclude Include="stuff\objects\entityList3D.h" />
     <ClInclude Include="stuff\globals\globals.h" />
@@ -252,6 +254,7 @@
     <ClInclude Include="stuff\objects\vector3.h" />
   </ItemGroup>
   <ItemGroup>
+    <ClCompile Include="demo\demo.cpp" />
     <ClCompile Include="main.cpp" />
     <ClCompile Include="stuff\callbacks\callbacks.cpp" />
     <ClCompile Include="stuff\globals\globals.cpp" />

threedee.vcxproj.filters

@@ -303,6 +303,12 @@
     <ClInclude Include="stuff\objects\ray2D.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="stuff\objects\argb.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="demo\demo.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="main.cpp">
@@ -314,5 +320,8 @@
     <ClCompile Include="stuff\globals\globals.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="demo\demo.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
 </Project>