From cdc5d643bb3256c50dd9787873b314c80e8f407e Mon Sep 17 00:00:00 2001
From: Richard Knight <q@1bpm.net>
Date: Tue, 25 Aug 2020 16:14:43 +0100
Subject: initial

---
 src/tests.cpp | 171 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 171 insertions(+)
 create mode 100644 src/tests.cpp

(limited to 'src/tests.cpp')

diff --git a/src/tests.cpp b/src/tests.cpp
new file mode 100644
index 0000000..2ca0ea4
--- /dev/null
+++ b/src/tests.cpp
@@ -0,0 +1,171 @@
+/*This source code copyrighted by Lazy Foo' Productions (2004-2019)
+and may not be redistributed without written permission.*/
+
+//Using SDL, SDL_image, standard IO, math, and strings
+#include <SDL2/SDL.h>
+
+#include <stdio.h>
+#include <string>
+#include <cmath>
+
+//Screen dimension constants
+const int SCREEN_WIDTH = 640;
+const int SCREEN_HEIGHT = 480;
+
+//Starts up SDL and creates window
+bool init();
+
+//Loads media
+bool loadMedia();
+
+//Frees media and shuts down SDL
+void close();
+
+//Loads individual image as texture
+SDL_Texture* loadTexture( std::string path );
+
+//The window we'll be rendering to
+SDL_Window* gWindow = NULL;
+
+//The window renderer
+SDL_Renderer* gRenderer = NULL;
+
+bool init()
+{
+	//Initialization flag
+	bool success = true;
+
+	//Initialize SDL
+	if( SDL_Init( SDL_INIT_VIDEO ) < 0 )
+	{
+		printf( "SDL could not initialize! SDL Error: %s\n", SDL_GetError() );
+		success = false;
+	}
+	else
+	{
+		//Set texture filtering to linear
+		if( !SDL_SetHint( SDL_HINT_RENDER_SCALE_QUALITY, "1" ) )
+		{
+			printf( "Warning: Linear texture filtering not enabled!" );
+		}
+
+		//Create window
+		gWindow = SDL_CreateWindow( "SDL Tutorial", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, SCREEN_WIDTH, SCREEN_HEIGHT, SDL_WINDOW_SHOWN );
+		if( gWindow == NULL )
+		{
+			printf( "Window could not be created! SDL Error: %s\n", SDL_GetError() );
+			success = false;
+		}
+		else
+		{
+			//Create renderer for window
+			gRenderer = SDL_CreateRenderer( gWindow, -1, SDL_RENDERER_ACCELERATED );
+			if( gRenderer == NULL )
+			{
+				printf( "Renderer could not be created! SDL Error: %s\n", SDL_GetError() );
+				success = false;
+			}
+			else
+			{
+				//Initialize renderer color
+				SDL_SetRenderDrawColor( gRenderer, 0xFF, 0xFF, 0xFF, 0xFF );
+
+			}
+		}
+	}
+
+	return success;
+}
+
+bool loadMedia()
+{
+	//Loading success flag
+	bool success = true;
+
+	//Nothing to load
+	return success;
+}
+
+void close()
+{
+	//Destroy window	
+	SDL_DestroyRenderer( gRenderer );
+	SDL_DestroyWindow( gWindow );
+	gWindow = NULL;
+	gRenderer = NULL;
+
+	//Quit SDL subsystems
+	SDL_Quit();
+}
+
+int main( int argc, char* args[] )
+{
+	//Start up SDL and create window
+	if( !init() )
+	{
+		printf( "Failed to initialize!\n" );
+	}
+	else
+	{
+		//Load media
+		if( !loadMedia() )
+		{
+			printf( "Failed to load media!\n" );
+		}
+		else
+		{	
+			//Main loop flag
+			bool quit = false;
+
+			//Event handler
+			SDL_Event e;
+                        
+			//While application is running
+			while( !quit )
+			{
+				//Handle events on queue
+				while( SDL_PollEvent( &e ) != 0 )
+				{
+					//User requests quit
+					if( e.type == SDL_QUIT )
+					{
+						quit = true;
+					}
+				}
+
+				//Clear screen
+				SDL_SetRenderDrawColor( gRenderer, 0xFF, 0xFF, 0xFF, 0xFF );
+				SDL_RenderClear( gRenderer );
+
+				//Render red filled quad
+				SDL_Rect fillRect = { SCREEN_WIDTH / 4, SCREEN_HEIGHT / 4, SCREEN_WIDTH / 2, SCREEN_HEIGHT / 2 };
+				SDL_SetRenderDrawColor( gRenderer, 0xFF, 0x00, 0x00, 0xFF );		
+				SDL_RenderFillRect( gRenderer, &fillRect );
+
+				//Render green outlined quad
+				SDL_Rect outlineRect = { SCREEN_WIDTH / 6, SCREEN_HEIGHT / 6, SCREEN_WIDTH * 2 / 3, SCREEN_HEIGHT * 2 / 3 };
+				SDL_SetRenderDrawColor( gRenderer, 0x00, 0xFF, 0x00, 0xFF );		
+				SDL_RenderDrawRect( gRenderer, &outlineRect );
+				
+				//Draw blue horizontal line
+				SDL_SetRenderDrawColor( gRenderer, 0x00, 0x00, 0xFF, 0xFF );		
+				SDL_RenderDrawLine( gRenderer, 0, SCREEN_HEIGHT / 2, SCREEN_WIDTH, SCREEN_HEIGHT / 2 );
+
+				//Draw vertical line of yellow dots
+				SDL_SetRenderDrawColor( gRenderer, 0xFF, 0xFF, 0x00, 0xFF );
+				for( int i = 0; i < SCREEN_HEIGHT; i += 4 )
+				{
+					SDL_RenderDrawPoint( gRenderer, SCREEN_WIDTH / 2, i );
+				}
+
+				//Update screen
+				SDL_RenderPresent( gRenderer );
+			}
+		}
+	}
+
+	//Free resources and close SDL
+	close();
+
+	return 0;
+}
\ No newline at end of file
-- 
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