added fill screen demo for testing basic initialization and drawing
This commit is contained in:
frank
parent
0d00314f5a
commit
e11fecbc12
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ooo.shampoo.fill_screen
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BPmono.ttf
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fill-screen
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# Fill screen SPACEBOX example
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#######################
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# Location parameters #
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#######################
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# Location of project specific source files
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SRC_DIR := ./
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# Locations of [SPACEBOX] source and dependencies required to be compiled from source. These locations are configured to match the
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# structure of the [SPACEBOX] repository but can be modified as necessary.
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SB_DIR := ../../
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SB_SRC_DIR := $(SB_DIR)src/
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SB_LIB_DIR := $(SB_DIR)lib/
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SDLGFX2_DIR := $(SB_LIB_DIR)sdl2-gfx/
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GLEW_DIR := $(SB_LIB_DIR)glew/
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# C and C++ compiler commands
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CC := clang
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CXX := clang++
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# Location of SDL config program
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SDLCONFIG := $(HOME)/local/sdl/bin/sdl2-config
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# Edit to point to the location of BPmono.ttf
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CREATE_FONT_SYMLINK := ln -nsf $(SB_DIR)"BPmono.ttf" .
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#############################
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# Based on above parameters #
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#############################
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SDL_CFLAGS = $(shell $(SDLCONFIG) --cflags)
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SDL_LFLAGS := $(shell $(SDLCONFIG) --libs)
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SB_H_FILES := $(wildcard $(addprefix $(SB_SRC_DIR),*.hpp))
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SB_O_FILES := $(filter-out $(addprefix $(SB_SRC_DIR),filesystem.o),$(SB_H_FILES:.hpp=.o))
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SRC_H_FILES := $(wildcard $(addprefix $(SRC_DIR),*.hpp))
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SRC_O_FILES := fill_screen.o $(SRC_H_FILES:.hpp=.o)
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#####################################################################
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# Targets for building [SPACE BOX], dependencies and project source #
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#####################################################################
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$(SDLGFX2_DIR)%.o: $(SDLGFX2_DIR)%.c $(SDLGFX2_DIR)%.h
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$(GLEW_DIR)%.o: $(GLEW_DIR)%.c $(GLEW_DIR)%.h
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$(CC) $< $(CFLAGS) -c -o $@
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$(SB_SRC_DIR)extension.o : $(addprefix $(SB_SRC_DIR),Box.hpp Segment.hpp Color.hpp filesystem.hpp Pixels.hpp Log.hpp)
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$(SB_SRC_DIR)Node.o : $(addprefix $(SB_SRC_DIR),Game.hpp Configuration.hpp Delegate.hpp Display.hpp Input.hpp Box.hpp Audio.hpp Log.hpp)
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$(SB_SRC_DIR)Sprite.o : $(addprefix $(SB_SRC_DIR),Node.hpp Game.hpp Box.hpp Animation.hpp Color.hpp extension.hpp Pixels.hpp Log.hpp)
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$(SB_SRC_DIR)Game.o : $(addprefix $(SB_SRC_DIR),extension.hpp Node.hpp Sprite.hpp Recorder.hpp Input.hpp Configuration.hpp \
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Delegate.hpp Audio.hpp Log.hpp)
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$(SB_SRC_DIR)Animation.o : $(addprefix $(SB_SRC_DIR),Node.hpp Timer.hpp)
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$(SB_SRC_DIR)Recorder.o : $(addprefix $(SB_SRC_DIR),Node.hpp Game.hpp Configuration.hpp Delegate.hpp Animation.hpp extension.hpp)
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$(SB_SRC_DIR)Input.o : $(addprefix $(SB_SRC_DIR),Node.hpp Animation.hpp Configuration.hpp Delegate.hpp)
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$(SB_SRC_DIR)Configuration.o : $(addprefix $(SB_SRC_DIR),Node.hpp Animation.hpp Log.hpp)
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$(SB_SRC_DIR)Delegate.o : $(addprefix $(SB_SRC_DIR),Node.hpp Game.hpp Input.hpp)
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$(SB_SRC_DIR)Display.o : $(addprefix $(SB_SRC_DIR),Node.hpp Game.hpp Box.hpp Configuration.hpp Delegate.hpp Log.hpp)
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$(SB_SRC_DIR)Box.o : $(addprefix $(SB_SRC_DIR),extension.hpp Segment.hpp)
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$(SB_SRC_DIR)Segment.o : $(addprefix $(SB_SRC_DIR),extension.hpp Box.hpp)
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$(SB_SRC_DIR)Pixels.o : $(addprefix $(SB_SRC_DIR),Box.hpp extension.hpp Log.hpp utility.hpp)
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$(SB_SRC_DIR)Audio.o : $(addprefix $(SB_SRC_DIR),Node.hpp Display.hpp Configuration.hpp Box.hpp filesystem.hpp extension.hpp)
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$(SB_SRC_DIR)GLObject.o : $(addprefix $(SB_SRC_DIR),Log.hpp)
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$(SB_SRC_DIR)Texture.o : $(addprefix $(SB_SRC_DIR),GLObject.hpp filesystem.hpp Log.hpp)
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$(SB_SRC_DIR)VBO.o : $(addprefix $(SB_SRC_DIR),Log.hpp GLObject.hpp Attributes.hpp extension.hpp)
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$(SB_SRC_DIR)Attributes.o : $(addprefix $(SB_SRC_DIR),Log.hpp extension.hpp)
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$(SRC_DIR)Model.o : $(addprefix $(SB_SRC_DIR),extension.hpp Attributes.hpp Texture.hpp utility.hpp)
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$(SRC_DIR)*.o : $(SRC_H_FILES) $(SB_H_FILES)
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%.o : %.cpp %.hpp
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$(CXX) $(CXXFLAGS) $< -c -o $@
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###############
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# Linux build #
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###############
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linux : CFLAGS = -Wall -Wextra -O3 -c -I$(SB_LIB_DIR) -I$(SB_SRC_DIR) $(SDL_CFLAGS)
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linux : CXXFLAGS = $(CFLAGS) --std=c++17
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linux : LFLAGS = $(SDL_LFLAGS) -Wl,--enable-new-dtags -lpthread -lGL -lGLESv2 -lSDL2_image -lSDL2_ttf -lSDL2_mixer -lstdc++fs
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linux : $(GLEW_DIR)glew.o $(addprefix $(SDLGFX2_DIR),SDL2_rotozoom.o SDL2_gfxPrimitives.o) \
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$(SB_O_FILES) $(SRC_O_FILES)
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$(CREATE_FONT_SYMLINK)
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$(CXX) $^ $(LFLAGS) -D__LINUX__ -o fill-screen
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#########################
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# Clean up object files #
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#########################
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clean :
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-find $(SRC_DIR) -iname "*.o" -delete
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rm -f BPmono.ttf
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clean-all : clean
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-find $(SB_SRC_DIR) -iname "*.o" -delete
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-find $(SB_LIB_DIR) -iname "*.o" -delete
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#############
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# compiledb #
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#############
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# Generate a clang JSON compilation database file. This can be useful for example for code completion. It requires a
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# compiledb binary (https://pypi.org/project/compiledb/). It should be generated manually every time a file is added,
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# renamed, or the compilation flags change. The generated database is based on the Linux build.
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PATH_TO_COMPILEDB = $(HOME)/.local/bin/compiledb
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compiledb :
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-$(PATH_TO_COMPILEDB) -n make linux -k
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Fill screen with solid colors
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=============================
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This is an example program that fills the screen with a color every frame. It can be used for testing since it is a minimal example of a SPACEBOX program.
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Setup
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-----
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### SPACEBOX
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The [SPACEBOX][] game and interactive application framework is required for setting up SDL + OpenGL. Follow the instructions in the README for installing the required libraries.
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Compiling
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---------
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Build at the root of the directory after setting up SPACEBOX
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make linux
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Running
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-------
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./fill-screen
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[SPACEBOX]: https://git.nugget.fun/nugget/spacebox
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/*
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* Fill screen example by frank at shampoo.ooo
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*
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* This is an example program that fills the screen with a color every frame. It is a minimal example of a SPACEBOX program
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* that can be used for testing builds.
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*/
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#include "Game.hpp"
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class FillScreen : public Game
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{
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public:
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/* Color component values that will increment each frame to combine into a different solid color. */
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float red = 1.0f, green = 0.5f, blue = 0.25f;
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/* This gets called every frame by the parent class. Clear the screen with a solid color. */
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void update()
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{
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red += 0.004f;
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green += 0.002f;
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blue += 0.001f;
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glClearColor(std::abs(red - int(red) - 0.5f), std::abs(green - int(green) - 0.5f), std::abs(blue - int(blue) - 0.5f), 1.0f);
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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SDL_GL_SwapWindow(window());
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}
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};
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/* Create a game object, load its GL context, and run the game. */
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int main()
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{
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FillScreen fill_screen = FillScreen();
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fill_screen.load_gl_context();
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fill_screen.run();
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fill_screen.quit();
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return 0;
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}
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