From d536bf287b1b955bec91e5c1278d6459b1fbe05f Mon Sep 17 00:00:00 2001
From: namark <namark@disroot.org>
Date: Sun, 9 Aug 2020 03:08:43 +0400
Subject: [PATCH] Motion is now an external library.
---
bunny.cpp | 6 +-
circular_maze.cpp | 8 +-
common/motion.hpp | 194 -----------------------------------------
common/sketchbook.hpp | 8 +-
tools/setup/init.sh | 1 +
tools/setup/install.sh | 5 ++
tools/setup/update.sh | 4 +
various_motion.cpp | 18 ++--
8 files changed, 31 insertions(+), 213 deletions(-)
delete mode 100644 common/motion.hpp
diff --git a/bunny.cpp b/bunny.cpp
index cd7a7e9..3528b35 100644
--- a/bunny.cpp
+++ b/bunny.cpp
@@ -157,8 +157,8 @@ range2f nose_bounds;
const framebuffer * furbuffer;
-using poke_motion = motion<float2, quadratic_curve>;
-symphony<poke_motion, poke_motion> poke;
+using poke_motion = movement<float2, motion::quadratic_curve>;
+melody<poke_motion, poke_motion> poke;
void start(Program& program)
{
@@ -255,7 +255,7 @@ void start(Program& program)
float fade = std::min(ratio*fade_in, (1-ratio)*fade_out);
return lerp(0.f,std::sin(ratio * 170 * poke_ratio), std::min(fade, 1.f));
}, 100ms}, 0);
- poke = symphony(
+ poke = melody(
poke_motion{float2::zero(), offset/2, 100ms},
poke_motion{offset/2, float2::zero(), 100ms}
);
diff --git a/circular_maze.cpp b/circular_maze.cpp
index 75bb88e..0832939 100644
--- a/circular_maze.cpp
+++ b/circular_maze.cpp
@@ -388,10 +388,10 @@ class circular_maze
} maze(float2::one(400));
-using radial_motion_t = motion<float, quadratic_curve>;
-using circular_motion_t = motion<float, quadratic_curve>;
+using radial_motion_t = movement<float, motion::quadratic_curve>;
+using circular_motion_t = movement<float, motion::quadratic_curve>;
-symphony<circular_motion_t, radial_motion_t>
+melody<circular_motion_t, radial_motion_t>
radial_motion;
struct radial_movement
@@ -505,7 +505,7 @@ void start(Program& program)
auto circular_distance = mod_difference(maze.current_angle, wrap(3/4.f - movement.path, 1.f), 1.f);
auto radial_distance = movement.level - maze.player_level;
- radial_motion = symphony(
+ radial_motion = melody(
circular_motion_t{
maze.current_angle,
maze.current_angle + circular_distance,
diff --git a/common/motion.hpp b/common/motion.hpp
deleted file mode 100644
index b7e72e0..0000000
--- a/common/motion.hpp
+++ /dev/null
@@ -1,194 +0,0 @@
-// what even is a tween?
-// shorhand for between??
-// what even is between???
-
-#ifndef COMMON_MOTION_HPP
-#define COMMON_MOTION_HPP
-
-float linear_curve(float x) { return x; };
-float quadratic_curve(float x) { return x*x; };
-float cubic_curve(float x) { return x*x*x; };
-
-using curve_t = decltype(&linear_curve);
-
-struct advance_result
-{
- bool success = false;
- Program::duration remaining = 0s;
- explicit operator bool() { return success; }
-};
-struct multi_advance_result : public advance_result
-{
- range<size_t> updated = range<size_t>{0,0};
- using advance_result::operator bool;
-};
-
-template <typename Type, curve_t curve = linear_curve>
-struct motion
-{
- Type start;
- Type end;
- Program::duration total = 0s;
- Program::duration elapsed = 0s;
-
- decltype(auto) value()
- {
- auto ratio = total == 0s ? 0 : elapsed.count()/total.count();
- return lerp(start, end, curve(ratio));
- }
-
- bool done()
- {
- return elapsed >= total;
- }
-
- advance_result advance(Program::duration delta)
- {
- elapsed += delta;
- if(done())
- {
- elapsed = total;
- return {false};
- }
- return {true};
- }
-
- void reset()
- {
- elapsed = 0s;
- }
-
- bool move(Type& target, Program::duration delta)
- {
- bool success = advance(delta).success;
- target = value();
- return !success;
- }
-};
-
-// welcome to proper looping
-// TODO: for know total duration mod(remaining, total)
-// TODO: for unknown total while(move, !success){delta = remaining}
-template <typename Motion, typename Target>
-bool loop(Target&& target, Motion& motion, Program::duration delta)
-{
- if(auto [success, remaining] = motion.move(std::forward<Target>(target), delta);
- !success)
- {
- motion.reset();
- motion.advance(remaining);
- return true;
- }
- return false;
-}
-
-template <typename... Motions>
-class ensemble // TODO
-{
- std::tuple<Motions...> instruments;
- bool done();
- bool advance(Program::duration delta);
- void reset();
- template <typename T>
- bool move(T& target, Program::duration delta);
-};
-
-template <typename... Motions>
-class symphony
-{
- std::tuple<Motions...> movements;
- size_t current_index = 0;
-
- template<typename F, size_t I = sizeof...(Motions) - 1>
- void for_all(F&& f)
- {
- static_assert(I >= 0 && I < sizeof...(Motions));
- std::forward<F>(f)(std::get<I>(movements));
- if constexpr (I > 0)
- for_all<F, I-1>(std::forward<F>(f));
- }
-
- multi_advance_result advance(Program::duration delta, range<size_t> updated)
- {
- auto [success, remaining] = support::apply_for(current_index, [&delta](auto&& movement)
- {
- return movement.advance(delta);
- }, movements);
-
- if(!success)
- {
- if(current_index == sizeof...(Motions) - 1)
- return {success, remaining, updated};
-
- ++current_index;
-
- if(remaining > 0s)
- return advance(remaining, {updated.lower(), updated.upper()+1});
- else
- return {true, remaining, updated};
- }
- else
- {
- return {success, remaining, updated};
- }
- }
-
- public:
-
- symphony() = default;
- symphony(Motions... motions) : movements{motions...} {}
-
- bool done()
- {
- return std::get<sizeof...(Motions) - 1>(movements).done();
- }
-
- auto advance(Program::duration delta)
- {
- return advance(delta, {current_index, current_index + 1});
- }
-
- template <size_t... I>
- std::tuple<decltype(std::declval<Motions>().value())...> value(std::index_sequence<I...>)
- {
- return {std::get<I>(movements).value()...};
- }
-
- std::tuple<decltype(std::declval<Motions>().value())...> value()
- {
- return value(std::make_index_sequence<sizeof...(Motions)>{});
- }
-
- void reset()
- {
- for_all([](auto& movement) {movement.reset();});
- current_index = 0;
- }
-
- template <typename T>
- advance_result move(T& target, Program::duration delta)
- {
- auto result = advance(delta);
- support::apply_for(current_index, [&target](auto&& movement)
- {
- target = movement.value();
- }, movements);
- return result;
- }
-
- template <typename... T,
- std::enable_if_t<sizeof...(T) == sizeof...(Motions)>* = nullptr>
- advance_result move(std::tuple<T...>&& targets, Program::duration delta)
- {
- auto r = advance(delta);
- support::apply_for(r.updated, [](auto&& movement, auto&& target)
- {
- target = movement.value();
- }, movements, std::forward<std::tuple<T...>>(targets));
- return r;
- }
-};
-
-class conductor; // TODO: dynamic symphony with all strings attached
-
-#endif /* end of include guard */
diff --git a/common/sketchbook.hpp b/common/sketchbook.hpp
index 48e6bcb..5ab76f6 100644
--- a/common/sketchbook.hpp
+++ b/common/sketchbook.hpp
@@ -15,6 +15,7 @@
#include "simple/musical.hpp"
#include "simple/interactive/initializer.h"
#include "simple/interactive/event.h"
+#include "simple/motion.hpp"
#include "simple_vg.h"
#include "simple_vg.cpp" // TODO: woops, don't do this
@@ -197,10 +198,11 @@ class Program
friend int main(int argc, char* argv[]);
};
-inline void process_events(Program&);
+template <typename T, motion::curve_t<float> curve = motion::linear_curve<float>>
+using movement = motion::movement<Program::duration, T, float, curve>;
+using motion::melody;
-// TODO: move dependent stuff out of here and include this at the top
-#include "motion.hpp"
+inline void process_events(Program&);
void start(Program&);
diff --git a/tools/setup/init.sh b/tools/setup/init.sh
index e4dd73f..d6b3caa 100755
--- a/tools/setup/init.sh
+++ b/tools/setup/init.sh
@@ -5,6 +5,7 @@ rm -rf .dependencies/*
cd .dependencies
git clone https://notabug.org/namark/cpp_tools
git clone https://notabug.org/namark/libsimple_support
+git clone https://notabug.org/namark/libsimple_motion
git clone https://notabug.org/namark/libsimple_geom
git clone https://notabug.org/namark/libsimple_sdlcore
git clone https://notabug.org/namark/libsimple_graphical
diff --git a/tools/setup/install.sh b/tools/setup/install.sh
index 28b2a39..c49372f 100755
--- a/tools/setup/install.sh
+++ b/tools/setup/install.sh
@@ -3,6 +3,7 @@ cd .dependencies
cd cpp_tools
make PREFIX=../libsimple_support ../libsimple_support/include/make_templates/header_only_lib
+make PREFIX=../libsimple_motion ../libsimple_support/include/make_templates/header_only_lib
make PREFIX=../libsimple_geom ../libsimple_geom/include/make_templates/header_only_lib
make PREFIX=../libsimple_sdlcore ../libsimple_sdlcore/include/make_templates/static_lib
make PREFIX=../libsimple_graphical ../libsimple_graphical/include/make_templates/static_lib
@@ -19,6 +20,10 @@ make install PREFIX=../libsimple_interactive "$@"
make install PREFIX=../libsimple_musical "$@"
cd ..
+cd libsimple_motion
+make install PREFIX=../../ "$@"
+cd ..
+
cd libsimple_geom
make install PREFIX=../../ "$@"
make install PREFIX=../libsimple_sdlcore "$@"
diff --git a/tools/setup/update.sh b/tools/setup/update.sh
index c5d368c..97d4cea 100755
--- a/tools/setup/update.sh
+++ b/tools/setup/update.sh
@@ -10,6 +10,10 @@ cd libsimple_support
git pull -r
cd ..
+cd libsimple_motion
+git pull -r
+cd ..
+
cd libsimple_geom
git pull -r
cd ..
diff --git a/various_motion.cpp b/various_motion.cpp
index daa5a89..762fe48 100644
--- a/various_motion.cpp
+++ b/various_motion.cpp
@@ -1,19 +1,19 @@
#include "common/sketchbook.hpp"
-using quadratic_motion = motion<float, quadratic_curve>;
+using quadratic_move = movement<float, motion::quadratic_curve>;
float block = 0;
-auto diagonal_back_and_forth = symphony(
- quadratic_motion{0,1, 500ms},
- quadratic_motion{1,0, 500ms}
+auto diagonal_back_and_forth = melody(
+ quadratic_move{0,1, 500ms},
+ quadratic_move{1,0, 500ms}
);
float2 block2 = float2::zero();
-auto square_around = symphony(
- quadratic_motion{0,1, 500ms},
- quadratic_motion{0,1, 500ms},
- quadratic_motion{1,0, 500ms},
- quadratic_motion{1,0, 500ms}
+auto square_around = melody(
+ quadratic_move{0,1, 500ms},
+ quadratic_move{0,1, 500ms},
+ quadratic_move{1,0, 500ms},
+ quadratic_move{1,0, 500ms}
);
void start(Program& program)
--
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