Created Compile the widescreen version of Cave Story from the source code (markdown)

Compile-the-widescreen-version-of-Cave-Story-from-the-source-code.md

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+# Compile the widescreen version of Cave Story from the source code 
+
+### Install the necessary packages:  
+
+```
+sudo apt update
+
+sudo apt install build-essential libpng-dev libjpeg-dev make cmake cmake-data git libsdl2-dev libsdl2-doc libsdl2-gfx-dev libsdl2-gfx-doc libsdl2-image-dev libsdl2-mixer-dev libsdl2-net-dev libsdl2-ttf-dev cmake -y -qq
+```
+
+
+### Compile the engine (it takes about 1 hour): 
+```
+cd ~
+git clone https://github.com/nxengine/nxengine-evo
+cd nxengine-evo
+mkdir build
+cd build
+cmake -DCMAKE_BUILD_TYPE=Release ..
+make
+```
+
+### Download the original game package (assuming the engine directory of git clone is in this path: ~/nxengine-evo): 
+```
+cd ~/nxengine-evo
+wget https://www.cavestory.org/downloads/cavestoryen.zip
+unzip cavestoryen.zip
+cp -r CaveStory/data/* data/
+cp CaveStory/Doukutsu.exe .
+./build/nxextract
+cd build
+sudo make install
+```
+
+
+### Confirm that the original version can run normally: 
+`./nxengine-evo`
+
+
+### Modified to the widescreen version: 
+
+`vim ~/nxengine-evo/src/graphics/Renderer.cpp`
+
+
+### Edit the 225 line and save and exit the following line 
+```
+{(char *)"1280x480", 1280, 480, 640, 240, 2, true, true},
+```
+
+### Recompile the engine (it takes about 1 minute) 
+```
+cd ~/nxengine-evo/build
+make
+```
+
+### Run the modified version: 
+`./nxengine-evo`
+
+### After running, press the Esc key, enter Options->Graphics, select the resolution as 1280x480, and open the full screen. 
+
+ 
+### Reinstall after confirming that there is no problem: 
+```
+cd ~/nxengine-evo/build
+sudo make install
+```
+
+You can use the command **nxengine-evo **to run the game in any directory