Initial commit

.gitignore

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+.vscode/*
+slime_mold
+build/*

Makefile

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+CXX=g++
+HEADERDIR=./header
+INCLUDE := $(shell find $(HEADERDIR) -type d | sed -e 's/^/-I/' | tr '\n' ' ' | sed 's/.$$//')
+CXXFLAGS=-g $(INCLUDE)
+SRCDIR=./src
+SRC := $(shell find $(SRCDIR) -name '*.cpp' | tr '\n' ' ' | sed 's/.$$//')
+OBJDIR=./build/debug/obj
+OBJ := $(SRC:$(SRCDIR)/%.cpp=$(OBJDIR)/%.o)
+LIBS=-lSDL2
+EXECUTABLE=slime_mold
+
+all: debug
+
+$(OBJ): $(OBJDIR)/%.o : $(SRCDIR)/%.cpp
+	@echo "Compiling source $< into object $@"
+	@mkdir -p '$(@D)'
+	@$(CXX) -c $(CXXFLAGS) $< -o $@
+
+debug: $(OBJ)
+	@echo "Compiling executable"
+	@$(CXX) $(CXXFLAGS) -o $(EXECUTABLE) $^ $(LIBS)
+
+clean:
+	rm -rf $(OBJDIR)/*
+	rm $(EXECUTABLE)

README.md

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+# Slime Mold Simulation
+
+A visually interesting slime mold simulation using SDL2 and C++.
+
+## Requirements
+
+* `g++`
+* `make`
+* `libsdl2-dev`
+
+## Compilation and Running
+
+Use `make` to compile. An executable called slime_mold will be generated.
+
+```./slime_mold [width height]```
+
+If a width and height is not provided a 300x300 pixel simulation will be ran.

src/main.cpp

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+#include <SDL2/SDL.h>
+
+#include <iostream>
+
+int main(int argc, char* argv[])
+{
+    int width, height;
+
+    if (argc == 1)
+    {
+        width = height = 300;
+    }
+    else
+    {
+        width = atoi(argv[1]);
+        height = atoi(argv[2]);
+    }
+
+    if (SDL_Init(SDL_INIT_VIDEO) < 0)
+    {
+        std::cout << "Video Init Error." << std::endl;
+    }
+
+    SDL_Window* window = SDL_CreateWindow("Slime Mold Simulator", SDL_WINDOWPOS_CENTERED-width/2, SDL_WINDOWPOS_CENTERED-height/2, width, height, SDL_WINDOW_SHOWN);
+
+    SDL_Renderer* renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
+
+    SDL_SetRenderDrawColor(renderer, 0x00, 0x00, 0x00, 0x00);
+
+    SDL_RenderClear(renderer);
+
+    SDL_SetRenderDrawColor(renderer, 0xFF, 0xFF, 0xFF, 0xFF);
+
+    SDL_Rect half_screen = (SDL_Rect){width/4, height/4, width/2, height/2};
+
+    SDL_RenderFillRect(renderer, &half_screen);
+
+    SDL_RenderPresent(renderer);
+
+    SDL_Delay(2000);
+
+    SDL_DestroyWindow(window);
+
+    SDL_Quit();
+
+    return 0;
+}