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olcPixelGameEngine.h
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/*
License (OLC-3)
~~~~~~~~~~~~~~~
Copyright 2018 - 2020 OneLoneCoder.com
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions or derivations of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions or derivative works in binary form must reproduce the above
copyright notice. This list of conditions and the following disclaimer must be
reproduced in the documentation and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors may
be used to endorse or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
*/
//////////////////////////////////////////////////////////////////////////////////////////
// O------------------------------------------------------------------------------O
// | Example "Hello World" Program (main.cpp) |
// O------------------------------------------------------------------------------O
/*
#define OLC_PGE_APPLICATION
#include "olcPixelGameEngine.h"
// Override base class with your custom functionality
class Example : public olc::PixelGameEngine
{
public:
Example()
{
// Name you application
sAppName = "Example";
}
public:
bool OnUserCreate() override
{
// Called once at the start, so create things here
return true;
}
bool OnUserUpdate(float fElapsedTime) override
{
// Called once per frame, draws random coloured pixels
for (int x = 0; x < ScreenWidth(); x++)
for (int y = 0; y < ScreenHeight(); y++)
Draw(x, y, olc::Pixel(rand() % 256, rand() % 256, rand() % 256));
return true;
}
};
int main()
{
Example demo;
if (demo.Construct(256, 240, 4, 4))
demo.Start();
return 0;
}
*/
#ifndef OLC_PGE_DEF
#define OLC_PGE_DEF
// O------------------------------------------------------------------------------O
// | STANDARD INCLUDES |
// O------------------------------------------------------------------------------O
#include <cmath>
#include <cstdint>
#include <string>
#include <iostream>
#include <streambuf>
#include <sstream>
#include <chrono>
#include <vector>
#include <list>
#include <thread>
#include <atomic>
#include <fstream>
#include <map>
#include <functional>
#include <algorithm>
#include <array>
#include <cstring>
// O------------------------------------------------------------------------------O
// | COMPILER CONFIGURATION ODDITIES |
// O------------------------------------------------------------------------------O
#define USE_EXPERIMENTAL_FS
#if defined(_WIN32)
#if _MSC_VER >= 1920 && _MSVC_LANG >= 201703L
#undef USE_EXPERIMENTAL_FS
#endif
#endif
#if defined(__linux__) || defined(__MINGW32__) || defined(__EMSCRIPTEN__) || defined(__FreeBSD__) || defined(__APPLE__)
#if __cplusplus >= 201703L
#undef USE_EXPERIMENTAL_FS
#endif
#endif
#if defined(__APPLE__)
#define PGE_USE_CUSTOM_START
#endif
#if defined(USE_EXPERIMENTAL_FS) || defined(FORCE_EXPERIMENTAL_FS)
// C++14
#define _SILENCE_EXPERIMENTAL_FILESYSTEM_DEPRECATION_WARNING
#include <experimental/filesystem>
namespace _gfs = std::experimental::filesystem::v1;
#else
// C++17
#include <filesystem>
namespace _gfs = std::filesystem;
#endif
#if defined(UNICODE) || defined(_UNICODE)
#define olcT(s) L##s
#else
#define olcT(s) s
#endif
#define UNUSED(x) (void)(x)
// O------------------------------------------------------------------------------O
// | PLATFORM SELECTION CODE, Thanks slavka! |
// O------------------------------------------------------------------------------O
// Platform
#if !defined(OLC_PLATFORM_WINAPI) && !defined(OLC_PLATFORM_X11) && !defined(OLC_PLATFORM_GLUT)
#if defined(_WIN32)
#define OLC_PLATFORM_WINAPI
#endif
#if defined(__linux__) || defined(__FreeBSD__)
#define OLC_PLATFORM_X11
#endif
#if defined(__APPLE__)
#define OLC_PLATFORM_GLUT
#endif
#endif
// Renderer
#if !defined(OLC_GFX_OPENGL10) || !defined(OLC_GFX_OPENGL33) && !defined(OLC_GFX_DIRECTX10)
#define OLC_GFX_OPENGL10
#endif
// Image loader
#if !defined(OLC_IMAGE_STB) && !defined(OLC_IMAGE_GDI) && !defined(OLC_IMAGE_LIBPNG)
#if defined(_WIN32)
#define OLC_IMAGE_GDI
#endif
#if defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__)
#define OLC_IMAGE_LIBPNG
#endif
#endif
// O------------------------------------------------------------------------------O
// | PLATFORM-SPECIFIC DEPENDENCIES |
// O------------------------------------------------------------------------------O
#if defined(OLC_PLATFORM_WINAPI)
#define _WINSOCKAPI_ // Thanks Cornchipss
//#if !defined(WIN32_LEAN_AND_MEAN) // Removes something GDI requires
// #define WIN32_LEAN_AND_MEAN
//#endif
#if !defined(VC_EXTRALEAN)
#define VC_EXTRALEAN
#endif
#if !defined(NOMINMAX)
#define NOMINMAX
#endif
// In Code::Blocks
#if !defined(_WIN32_WINNT)
#ifdef HAVE_MSMF
#define _WIN32_WINNT 0x0600 // Windows Vista
#else
#define _WIN32_WINNT 0x0500 // Windows 2000
#endif
#endif
#include <windows.h>
#undef _WINSOCKAPI_
#endif
#if defined(OLC_PLATFORM_X11)
namespace X11
{
#include <X11/X.h>
#include <X11/Xlib.h>
}
#endif
#if defined(OLC_PLATFORM_GLUT)
#define PGE_USE_CUSTOM_START
#if defined(__linux__)
#include <GL/glut.h>
#include <GL/freeglut_ext.h>
#endif
#if defined(__APPLE__)
#include <GLUT/glut.h>
#endif
#endif
// O------------------------------------------------------------------------------O
// | olcPixelGameEngine INTERFACE DECLARATION |
// O------------------------------------------------------------------------------O
namespace olc
{
class PixelGameEngine;
class Sprite;
// Pixel Game Engine Advanced Configuration
constexpr uint8_t nMouseButtons = 5;
constexpr uint8_t nDefaultAlpha = 0xFF;
constexpr uint32_t nDefaultPixel = (nDefaultAlpha << 24);
enum rcode { FAIL = 0, OK = 1, NO_FILE = -1 };
// O------------------------------------------------------------------------------O
// | olc::Pixel - Represents a 32-Bit RGBA colour |
// O------------------------------------------------------------------------------O
struct Pixel
{
union
{
uint32_t n = nDefaultPixel;
struct { uint8_t r; uint8_t g; uint8_t b; uint8_t a; };
};
enum Mode { NORMAL, MASK, ALPHA, CUSTOM };
Pixel();
Pixel(uint8_t red, uint8_t green, uint8_t blue, uint8_t alpha = nDefaultAlpha);
Pixel(uint32_t p);
Pixel& operator = (const Pixel& v) = default;
bool operator ==(const Pixel& p) const;
bool operator !=(const Pixel& p) const;
Pixel operator * (const float i) const;
Pixel operator / (const float i) const;
Pixel& operator *=(const float i);
Pixel& operator /=(const float i);
Pixel operator + (const Pixel& p) const;
Pixel operator - (const Pixel& p) const;
Pixel& operator +=(const Pixel& p);
Pixel& operator -=(const Pixel& p);
Pixel inv() const;
};
Pixel PixelF(float red, float green, float blue, float alpha = 1.0f);
Pixel PixelLerp(const olc::Pixel& p1, const olc::Pixel& p2, float t);
// O------------------------------------------------------------------------------O
// | USEFUL CONSTANTS |
// O------------------------------------------------------------------------------O
static const Pixel
GREY(192, 192, 192), DARK_GREY(128, 128, 128), VERY_DARK_GREY(64, 64, 64),
RED(255, 0, 0), DARK_RED(128, 0, 0), VERY_DARK_RED(64, 0, 0),
YELLOW(255, 255, 0), DARK_YELLOW(128, 128, 0), VERY_DARK_YELLOW(64, 64, 0),
GREEN(0, 255, 0), DARK_GREEN(0, 128, 0), VERY_DARK_GREEN(0, 64, 0),
CYAN(0, 255, 255), DARK_CYAN(0, 128, 128), VERY_DARK_CYAN(0, 64, 64),
BLUE(0, 0, 255), DARK_BLUE(0, 0, 128), VERY_DARK_BLUE(0, 0, 64),
MAGENTA(255, 0, 255), DARK_MAGENTA(128, 0, 128), VERY_DARK_MAGENTA(64, 0, 64),
WHITE(255, 255, 255), BLACK(0, 0, 0), BLANK(0, 0, 0, 0);
// Thanks to scripticuk and others for updating the key maps
// MOTE: The GLUT platform will need updating, open to contributions ;)
enum Key
{
NONE,
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z,
K0, K1, K2, K3, K4, K5, K6, K7, K8, K9,
F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12,
UP, DOWN, LEFT, RIGHT,
SPACE, TAB, SHIFT, CTRL, INS, DEL, HOME, END, PGUP, PGDN,
BACK, ESCAPE, RETURN, ENTER, PAUSE, SCROLL,
NP0, NP1, NP2, NP3, NP4, NP5, NP6, NP7, NP8, NP9,
NP_MUL, NP_DIV, NP_ADD, NP_SUB, NP_DECIMAL, PERIOD,
EQUALS, COMMA, MINUS,
OEM_1, OEM_2, OEM_3, OEM_4, OEM_5, OEM_6, OEM_7, OEM_8,
CAPS_LOCK, ENUM_END
};
// O------------------------------------------------------------------------------O
// | olc::vX2d - A generic 2D vector type |
// O------------------------------------------------------------------------------O
#if !defined(OLC_IGNORE_VEC2D)
template <class T>
struct v2d_generic
{
T x = 0;
T y = 0;
v2d_generic() : x(0), y(0) {}
v2d_generic(T _x, T _y) : x(_x), y(_y) {}
v2d_generic(const v2d_generic& v) : x(v.x), y(v.y) {}
v2d_generic& operator=(const v2d_generic& v) = default;
T mag() const { return T(std::sqrt(x * x + y * y)); }
T mag2() const { return x * x + y * y; }
v2d_generic norm() const { T r = 1 / mag(); return v2d_generic(x * r, y * r); }
v2d_generic perp() const { return v2d_generic(-y, x); }
T dot(const v2d_generic& rhs) const { return this->x * rhs.x + this->y * rhs.y; }
T cross(const v2d_generic& rhs) const { return this->x * rhs.y - this->y * rhs.x; }
v2d_generic operator + (const v2d_generic& rhs) const { return v2d_generic(this->x + rhs.x, this->y + rhs.y); }
v2d_generic operator - (const v2d_generic& rhs) const { return v2d_generic(this->x - rhs.x, this->y - rhs.y); }
v2d_generic operator * (const T& rhs) const { return v2d_generic(this->x * rhs, this->y * rhs); }
v2d_generic operator * (const v2d_generic& rhs) const { return v2d_generic(this->x * rhs.x, this->y * rhs.y); }
v2d_generic operator / (const T& rhs) const { return v2d_generic(this->x / rhs, this->y / rhs); }
v2d_generic operator / (const v2d_generic& rhs) const { return v2d_generic(this->x / rhs.x, this->y / rhs.y); }
v2d_generic& operator += (const v2d_generic& rhs) { this->x += rhs.x; this->y += rhs.y; return *this; }
v2d_generic& operator -= (const v2d_generic& rhs) { this->x -= rhs.x; this->y -= rhs.y; return *this; }
v2d_generic& operator *= (const T& rhs) { this->x *= rhs; this->y *= rhs; return *this; }
v2d_generic& operator /= (const T& rhs) { this->x /= rhs; this->y /= rhs; return *this; }
v2d_generic operator + () const { return { +x, +y }; }
v2d_generic operator - () const { return { -x, -y }; }
bool operator == (const v2d_generic& rhs) const { return (this->x == rhs.x && this->y == rhs.y); }
bool operator != (const v2d_generic& rhs) const { return (this->x != rhs.x || this->y != rhs.y); }
const std::string str() const { return std::string("(") + std::to_string(this->x) + "," + std::to_string(this->y) + ")"; }
friend std::ostream& operator << (std::ostream& os, const v2d_generic& rhs) { os << rhs.str(); return os; }
operator v2d_generic<int32_t>() const { return { static_cast<int32_t>(this->x), static_cast<int32_t>(this->y) }; }
operator v2d_generic<float>() const { return { static_cast<float>(this->x), static_cast<float>(this->y) }; }
operator v2d_generic<double>() const { return { static_cast<double>(this->x), static_cast<double>(this->y) }; }
};
// Note: joshinils has some good suggestions here, but they are complicated to implement at this moment,
// however they will appear in a future version of PGE
template<class T> inline v2d_generic<T> operator * (const float& lhs, const v2d_generic<T>& rhs)
{ return v2d_generic<T>((T)(lhs * (float)rhs.x), (T)(lhs * (float)rhs.y)); }
template<class T> inline v2d_generic<T> operator * (const double& lhs, const v2d_generic<T>& rhs)
{ return v2d_generic<T>((T)(lhs * (double)rhs.x), (T)(lhs * (double)rhs.y)); }
template<class T> inline v2d_generic<T> operator * (const int& lhs, const v2d_generic<T>& rhs)
{ return v2d_generic<T>((T)(lhs * (int)rhs.x), (T)(lhs * (int)rhs.y)); }
template<class T> inline v2d_generic<T> operator / (const float& lhs, const v2d_generic<T>& rhs)
{ return v2d_generic<T>((T)(lhs / (float)rhs.x), (T)(lhs / (float)rhs.y)); }
template<class T> inline v2d_generic<T> operator / (const double& lhs, const v2d_generic<T>& rhs)
{ return v2d_generic<T>((T)(lhs / (double)rhs.x), (T)(lhs / (double)rhs.y)); }
template<class T> inline v2d_generic<T> operator / (const int& lhs, const v2d_generic<T>& rhs)
{ return v2d_generic<T>((T)(lhs / (int)rhs.x), (T)(lhs / (int)rhs.y)); }
typedef v2d_generic<int32_t> vi2d;
typedef v2d_generic<uint32_t> vu2d;
typedef v2d_generic<float> vf2d;
typedef v2d_generic<double> vd2d;
#endif
// O------------------------------------------------------------------------------O
// | olc::HWButton - Represents the state of a hardware button (mouse/key/joy) |
// O------------------------------------------------------------------------------O
struct HWButton
{
bool bPressed = false; // Set once during the frame the event occurs
bool bReleased = false; // Set once during the frame the event occurs
bool bHeld = false; // Set true for all frames between pressed and released events
};
// O------------------------------------------------------------------------------O
// | olc::ResourcePack - A virtual scrambled filesystem to pack your assets into |
// O------------------------------------------------------------------------------O
struct ResourceBuffer : public std::streambuf
{
ResourceBuffer(std::ifstream& ifs, uint32_t offset, uint32_t size);
std::vector<char> vMemory;
};
class ResourcePack : public std::streambuf
{
public:
ResourcePack();
~ResourcePack();
bool AddFile(const std::string& sFile);
bool LoadPack(const std::string& sFile, const std::string& sKey);
bool SavePack(const std::string& sFile, const std::string& sKey);
ResourceBuffer GetFileBuffer(const std::string& sFile);
bool Loaded();
private:
struct sResourceFile { uint32_t nSize; uint32_t nOffset; };
std::map<std::string, sResourceFile> mapFiles;
std::ifstream baseFile;
std::vector<char> scramble(const std::vector<char>& data, const std::string& key);
std::string makeposix(const std::string& path);
};
class ImageLoader
{
public:
ImageLoader() = default;
virtual ~ImageLoader() = default;
virtual olc::rcode LoadImageResource(olc::Sprite* spr, const std::string& sImageFile, olc::ResourcePack* pack) = 0;
virtual olc::rcode SaveImageResource(olc::Sprite* spr, const std::string& sImageFile) = 0;
};
// O------------------------------------------------------------------------------O
// | olc::Sprite - An image represented by a 2D array of olc::Pixel |
// O------------------------------------------------------------------------------O
class Sprite
{
public:
Sprite();
Sprite(const std::string& sImageFile, olc::ResourcePack* pack = nullptr);
Sprite(int32_t w, int32_t h);
Sprite(const olc::Sprite&) = delete;
~Sprite();
public:
olc::rcode LoadFromFile(const std::string& sImageFile, olc::ResourcePack* pack = nullptr);
olc::rcode LoadFromPGESprFile(const std::string& sImageFile, olc::ResourcePack* pack = nullptr);
olc::rcode SaveToPGESprFile(const std::string& sImageFile);
public:
int32_t width = 0;
int32_t height = 0;
enum Mode { NORMAL, PERIODIC };
enum Flip { NONE = 0, HORIZ = 1, VERT = 2 };
public:
void SetSampleMode(olc::Sprite::Mode mode = olc::Sprite::Mode::NORMAL);
Pixel GetPixel(int32_t x, int32_t y) const;
bool SetPixel(int32_t x, int32_t y, Pixel p);
Pixel GetPixel(const olc::vi2d& a) const;
bool SetPixel(const olc::vi2d& a, Pixel p);
Pixel Sample(float x, float y) const;
Pixel SampleBL(float u, float v) const;
Pixel* GetData();
olc::Sprite* Duplicate();
olc::Sprite* Duplicate(const olc::vi2d& vPos, const olc::vi2d& vSize);
Pixel* pColData = nullptr;
Mode modeSample = Mode::NORMAL;
static std::unique_ptr<olc::ImageLoader> loader;
};
// O------------------------------------------------------------------------------O
// | olc::Decal - A GPU resident storage of an olc::Sprite |
// O------------------------------------------------------------------------------O
class Decal
{
public:
Decal(olc::Sprite* spr, bool filter = false);
virtual ~Decal();
void Update();
public: // But dont touch
int32_t id = -1;
olc::Sprite* sprite = nullptr;
olc::vf2d vUVScale = { 1.0f, 1.0f };
};
enum class DecalMode
{
NORMAL,
ADDITIVE,
MULTIPLICATIVE,
STENCIL,
ILLUMINATE,
};
// O------------------------------------------------------------------------------O
// | olc::Renderable - Convenience class to keep a sprite and decal together |
// O------------------------------------------------------------------------------O
class Renderable
{
public:
Renderable() = default;
olc::rcode Load(const std::string& sFile, ResourcePack* pack = nullptr, bool filter = false);
void Create(uint32_t width, uint32_t height, bool filter = false);
olc::Decal* Decal() const;
olc::Sprite* Sprite() const;
private:
std::unique_ptr<olc::Sprite> pSprite = nullptr;
std::unique_ptr<olc::Decal> pDecal = nullptr;
};
// O------------------------------------------------------------------------------O
// | Auxilliary components internal to engine |
// O------------------------------------------------------------------------------O
struct DecalInstance
{
olc::Decal* decal = nullptr;
olc::vf2d pos[4] = { { 0.0f, 0.0f}, {0.0f, 0.0f}, {0.0f, 0.0f}, {0.0f, 0.0f} };
olc::vf2d uv[4] = { { 0.0f, 0.0f}, {0.0f, 1.0f}, {1.0f, 1.0f}, {1.0f, 0.0f} };
float w[4] = { 1, 1, 1, 1 };
olc::Pixel tint[4] = { olc::WHITE, olc::WHITE, olc::WHITE, olc::WHITE };
olc::DecalMode mode = olc::DecalMode::NORMAL;
};
struct DecalTriangleInstance
{
olc::vf2d points[3];
olc::vf2d texture[3];
olc::Pixel colours[3];
olc::Decal* decal = nullptr;
};
struct LayerDesc
{
olc::vf2d vOffset = { 0, 0 };
olc::vf2d vScale = { 1, 1 };
bool bShow = false;
bool bUpdate = false;
olc::Sprite* pDrawTarget = nullptr;
uint32_t nResID = 0;
std::vector<DecalInstance> vecDecalInstance;
olc::Pixel tint = olc::WHITE;
std::function<void()> funcHook = nullptr;
};
class Renderer
{
public:
virtual ~Renderer() = default;
virtual void PrepareDevice() = 0;
virtual olc::rcode CreateDevice(std::vector<void*> params, bool bFullScreen, bool bVSYNC) = 0;
virtual olc::rcode DestroyDevice() = 0;
virtual void DisplayFrame() = 0;
virtual void PrepareDrawing() = 0;
virtual void SetDecalMode(const olc::DecalMode& mode) = 0;
virtual void DrawLayerQuad(const olc::vf2d& offset, const olc::vf2d& scale, const olc::Pixel tint) = 0;
virtual void DrawDecalQuad(const olc::DecalInstance& decal) = 0;
virtual uint32_t CreateTexture(const uint32_t width, const uint32_t height, const bool filtered = false) = 0;
virtual void UpdateTexture(uint32_t id, olc::Sprite* spr) = 0;
virtual uint32_t DeleteTexture(const uint32_t id) = 0;
virtual void ApplyTexture(uint32_t id) = 0;
virtual void UpdateViewport(const olc::vi2d& pos, const olc::vi2d& size) = 0;
virtual void ClearBuffer(olc::Pixel p, bool bDepth) = 0;
static olc::PixelGameEngine* ptrPGE;
};
class Platform
{
public:
virtual ~Platform() = default;
virtual olc::rcode ApplicationStartUp() = 0;
virtual olc::rcode ApplicationCleanUp() = 0;
virtual olc::rcode ThreadStartUp() = 0;
virtual olc::rcode ThreadCleanUp() = 0;
virtual olc::rcode CreateGraphics(bool bFullScreen, bool bEnableVSYNC, const olc::vi2d& vViewPos, const olc::vi2d& vViewSize) = 0;
virtual olc::rcode CreateWindowPane(const olc::vi2d& vWindowPos, olc::vi2d& vWindowSize, bool bFullScreen) = 0;
virtual olc::rcode SetWindowTitle(const std::string& s) = 0;
virtual olc::rcode StartSystemEventLoop() = 0;
virtual olc::rcode HandleSystemEvent() = 0;
static olc::PixelGameEngine* ptrPGE;
};
static std::unique_ptr<Renderer> renderer;
static std::unique_ptr<Platform> platform;
static std::map<size_t, uint8_t> mapKeys;
// O------------------------------------------------------------------------------O
// | olc::PixelGameEngine - The main BASE class for your application |
// O------------------------------------------------------------------------------O
class PixelGameEngine
{
public:
PixelGameEngine();
virtual ~PixelGameEngine();
public:
olc::rcode Construct(int32_t screen_w, int32_t screen_h, int32_t pixel_w, int32_t pixel_h,
bool full_screen = false, bool vsync = false, bool cohesion = false);
olc::rcode Start();
public: // User Override Interfaces
// Called once on application startup, use to load your resources
virtual bool OnUserCreate();
// Called every frame, and provides you with a time per frame value
virtual bool OnUserUpdate(float fElapsedTime);
// Called once on application termination, so you can be one clean coder
virtual bool OnUserDestroy();
public: // Hardware Interfaces
// Returns true if window is currently in focus
bool IsFocused() const;
// Get the state of a specific keyboard button
HWButton GetKey(Key k) const;
// Get the state of a specific mouse button
HWButton GetMouse(uint32_t b) const;
// Get Mouse X coordinate in "pixel" space
int32_t GetMouseX() const;
// Get Mouse Y coordinate in "pixel" space
int32_t GetMouseY() const;
// Get Mouse Wheel Delta
int32_t GetMouseWheel() const;
// Get the mouse in window space
const olc::vi2d& GetWindowMouse() const;
// Gets the mouse as a vector to keep Tarriest happy
const olc::vi2d& GetMousePos() const;
public: // Utility
// Returns the width of the screen in "pixels"
int32_t ScreenWidth() const;
// Returns the height of the screen in "pixels"
int32_t ScreenHeight() const;
// Returns the width of the currently selected drawing target in "pixels"
int32_t GetDrawTargetWidth() const;
// Returns the height of the currently selected drawing target in "pixels"
int32_t GetDrawTargetHeight() const;
// Returns the currently active draw target
olc::Sprite* GetDrawTarget() const;
// Resize the primary screen sprite
void SetScreenSize(int w, int h);
// Specify which Sprite should be the target of drawing functions, use nullptr
// to specify the primary screen
void SetDrawTarget(Sprite* target);
// Gets the current Frames Per Second
uint32_t GetFPS() const;
// Gets last update of elapsed time
float GetElapsedTime() const;
// Gets Actual Window size
const olc::vi2d& GetWindowSize() const;
// Gets pixel scale
const olc::vi2d& GetPixelSize() const;
// Gets actual pixel scale
const olc::vi2d& GetScreenPixelSize() const;
public: // CONFIGURATION ROUTINES
// Layer targeting functions
void SetDrawTarget(uint8_t layer);
void EnableLayer(uint8_t layer, bool b);
void SetLayerOffset(uint8_t layer, const olc::vf2d& offset);
void SetLayerOffset(uint8_t layer, float x, float y);
void SetLayerScale(uint8_t layer, const olc::vf2d& scale);
void SetLayerScale(uint8_t layer, float x, float y);
void SetLayerTint(uint8_t layer, const olc::Pixel& tint);
void SetLayerCustomRenderFunction(uint8_t layer, std::function<void()> f);
std::vector<LayerDesc>& GetLayers();
uint32_t CreateLayer();
// Change the pixel mode for different optimisations
// olc::Pixel::NORMAL = No transparency
// olc::Pixel::MASK = Transparent if alpha is < 255
// olc::Pixel::ALPHA = Full transparency
void SetPixelMode(Pixel::Mode m);
Pixel::Mode GetPixelMode();
// Use a custom blend function
void SetPixelMode(std::function<olc::Pixel(const int x, const int y, const olc::Pixel& pSource, const olc::Pixel& pDest)> pixelMode);
// Change the blend factor form between 0.0f to 1.0f;
void SetPixelBlend(float fBlend);
public: // DRAWING ROUTINES
// Draws a single Pixel
virtual bool Draw(int32_t x, int32_t y, Pixel p = olc::WHITE);
bool Draw(const olc::vi2d& pos, Pixel p = olc::WHITE);
// Draws a line from (x1,y1) to (x2,y2)
void DrawLine(int32_t x1, int32_t y1, int32_t x2, int32_t y2, Pixel p = olc::WHITE, uint32_t pattern = 0xFFFFFFFF);
void DrawLine(const olc::vi2d& pos1, const olc::vi2d& pos2, Pixel p = olc::WHITE, uint32_t pattern = 0xFFFFFFFF);
// Draws a circle located at (x,y) with radius
void DrawCircle(int32_t x, int32_t y, int32_t radius, Pixel p = olc::WHITE, uint8_t mask = 0xFF);
void DrawCircle(const olc::vi2d& pos, int32_t radius, Pixel p = olc::WHITE, uint8_t mask = 0xFF);
// Fills a circle located at (x,y) with radius
void FillCircle(int32_t x, int32_t y, int32_t radius, Pixel p = olc::WHITE);
void FillCircle(const olc::vi2d& pos, int32_t radius, Pixel p = olc::WHITE);
// Draws a rectangle at (x,y) to (x+w,y+h)
void DrawRect(int32_t x, int32_t y, int32_t w, int32_t h, Pixel p = olc::WHITE);
void DrawRect(const olc::vi2d& pos, const olc::vi2d& size, Pixel p = olc::WHITE);
// Fills a rectangle at (x,y) to (x+w,y+h)
void FillRect(int32_t x, int32_t y, int32_t w, int32_t h, Pixel p = olc::WHITE);
void FillRect(const olc::vi2d& pos, const olc::vi2d& size, Pixel p = olc::WHITE);
// Draws a triangle between points (x1,y1), (x2,y2) and (x3,y3)
void DrawTriangle(int32_t x1, int32_t y1, int32_t x2, int32_t y2, int32_t x3, int32_t y3, Pixel p = olc::WHITE);
void DrawTriangle(const olc::vi2d& pos1, const olc::vi2d& pos2, const olc::vi2d& pos3, Pixel p = olc::WHITE);
// Flat fills a triangle between points (x1,y1), (x2,y2) and (x3,y3)
void FillTriangle(int32_t x1, int32_t y1, int32_t x2, int32_t y2, int32_t x3, int32_t y3, Pixel p = olc::WHITE);
void FillTriangle(const olc::vi2d& pos1, const olc::vi2d& pos2, const olc::vi2d& pos3, Pixel p = olc::WHITE);
// Draws an entire sprite at well location (x,y)
void DrawSprite(int32_t x, int32_t y, Sprite* sprite, uint32_t scale = 1, uint8_t flip = olc::Sprite::NONE);
void DrawSprite(const olc::vi2d& pos, Sprite* sprite, uint32_t scale = 1, uint8_t flip = olc::Sprite::NONE);
// Draws an area of a sprite at location (x,y), where the
// selected area is (ox,oy) to (ox+w,oy+h)
void DrawPartialSprite(int32_t x, int32_t y, Sprite* sprite, int32_t ox, int32_t oy, int32_t w, int32_t h, uint32_t scale = 1, uint8_t flip = olc::Sprite::NONE);
void DrawPartialSprite(const olc::vi2d& pos, Sprite* sprite, const olc::vi2d& sourcepos, const olc::vi2d& size, uint32_t scale = 1, uint8_t flip = olc::Sprite::NONE);
// Decal Quad functions
void SetDecalMode(const olc::DecalMode& mode);
// Draws a whole decal, with optional scale and tinting
void DrawDecal(const olc::vf2d& pos, olc::Decal* decal, const olc::vf2d& scale = { 1.0f,1.0f }, const olc::Pixel& tint = olc::WHITE);
// Draws a region of a decal, with optional scale and tinting
void DrawPartialDecal(const olc::vf2d& pos, olc::Decal* decal, const olc::vf2d& source_pos, const olc::vf2d& source_size, const olc::vf2d& scale = { 1.0f,1.0f }, const olc::Pixel& tint = olc::WHITE);
void DrawPartialDecal(const olc::vf2d& pos, const olc::vf2d& size, olc::Decal* decal, const olc::vf2d& source_pos, const olc::vf2d& source_size, const olc::Pixel& tint = olc::WHITE);
// Draws fully user controlled 4 vertices, pos(pixels), uv(pixels), colours
void DrawExplicitDecal(olc::Decal* decal, const olc::vf2d* pos, const olc::vf2d* uv, const olc::Pixel* col);
// Draws a decal with 4 arbitrary points, warping the texture to look "correct"
void DrawWarpedDecal(olc::Decal* decal, const olc::vf2d(&pos)[4], const olc::Pixel& tint = olc::WHITE);
void DrawWarpedDecal(olc::Decal* decal, const olc::vf2d* pos, const olc::Pixel& tint = olc::WHITE);
void DrawWarpedDecal(olc::Decal* decal, const std::array<olc::vf2d, 4>& pos, const olc::Pixel& tint = olc::WHITE);
// As above, but you can specify a region of a decal source sprite
void DrawPartialWarpedDecal(olc::Decal* decal, const olc::vf2d(&pos)[4], const olc::vf2d& source_pos, const olc::vf2d& source_size, const olc::Pixel& tint = olc::WHITE);
void DrawPartialWarpedDecal(olc::Decal* decal, const olc::vf2d* pos, const olc::vf2d& source_pos, const olc::vf2d& source_size, const olc::Pixel& tint = olc::WHITE);
void DrawPartialWarpedDecal(olc::Decal* decal, const std::array<olc::vf2d, 4>& pos, const olc::vf2d& source_pos, const olc::vf2d& source_size, const olc::Pixel& tint = olc::WHITE);
// Draws a decal rotated to specified angle, wit point of rotation offset
void DrawRotatedDecal(const olc::vf2d& pos, olc::Decal* decal, const float fAngle, const olc::vf2d& center = { 0.0f, 0.0f }, const olc::vf2d& scale = { 1.0f,1.0f }, const olc::Pixel& tint = olc::WHITE);
void DrawPartialRotatedDecal(const olc::vf2d& pos, olc::Decal* decal, const float fAngle, const olc::vf2d& center, const olc::vf2d& source_pos, const olc::vf2d& source_size, const olc::vf2d& scale = { 1.0f, 1.0f }, const olc::Pixel& tint = olc::WHITE);
// Draws a multiline string as a decal, with tiniting and scaling
void DrawStringDecal(const olc::vf2d& pos, const std::string& sText, const Pixel col = olc::WHITE, const olc::vf2d& scale = { 1.0f, 1.0f });
void DrawStringPropDecal(const olc::vf2d& pos, const std::string& sText, const Pixel col = olc::WHITE, const olc::vf2d& scale = { 1.0f, 1.0f });
// Draws a single shaded filled rectangle as a decal
void FillRectDecal(const olc::vf2d& pos, const olc::vf2d& size, const olc::Pixel col = olc::WHITE);
// Draws a corner shaded rectangle as a decal
void GradientFillRectDecal(const olc::vf2d& pos, const olc::vf2d& size, const olc::Pixel colTL, const olc::Pixel colBL, const olc::Pixel colBR, const olc::Pixel colTR);
// Draws a single line of text - traditional monospaced
void DrawString(int32_t x, int32_t y, const std::string& sText, Pixel col = olc::WHITE, uint32_t scale = 1);
void DrawString(const olc::vi2d& pos, const std::string& sText, Pixel col = olc::WHITE, uint32_t scale = 1);
olc::vi2d GetTextSize(const std::string& s);
// Draws a single line of text - non-monospaced
void DrawStringProp(int32_t x, int32_t y, const std::string& sText, Pixel col = olc::WHITE, uint32_t scale = 1);
void DrawStringProp(const olc::vi2d& pos, const std::string& sText, Pixel col = olc::WHITE, uint32_t scale = 1);
olc::vi2d GetTextSizeProp(const std::string& s);
// Clears entire draw target to Pixel
void Clear(Pixel p);
// Clears the rendering back buffer
void ClearBuffer(Pixel p, bool bDepth = true);
public: // Branding
std::string sAppName;
private: // Inner mysterious workings
Sprite* pDrawTarget = nullptr;
Pixel::Mode nPixelMode = Pixel::NORMAL;
float fBlendFactor = 1.0f;
olc::vi2d vScreenSize = { 256, 240 };
olc::vf2d vInvScreenSize = { 1.0f / 256.0f, 1.0f / 240.0f };
olc::vi2d vPixelSize = { 4, 4 };
olc::vi2d vScreenPixelSize = { 4, 4 };
olc::vi2d vMousePos = { 0, 0 };
int32_t nMouseWheelDelta = 0;
olc::vi2d vMousePosCache = { 0, 0 };
olc::vi2d vMouseWindowPos = { 0, 0 };
int32_t nMouseWheelDeltaCache = 0;
olc::vi2d vWindowSize = { 0, 0 };
olc::vi2d vViewPos = { 0, 0 };
olc::vi2d vViewSize = { 0,0 };
bool bFullScreen = false;
olc::vf2d vPixel = { 1.0f, 1.0f };
bool bHasInputFocus = false;
bool bHasMouseFocus = false;
bool bEnableVSYNC = false;
float fFrameTimer = 1.0f;
float fLastElapsed = 0.0f;
int nFrameCount = 0;
Sprite* fontSprite = nullptr;
Decal* fontDecal = nullptr;
Sprite* pDefaultDrawTarget = nullptr;
std::vector<LayerDesc> vLayers;
uint8_t nTargetLayer = 0;
uint32_t nLastFPS = 0;
bool bPixelCohesion = false;
DecalMode nDecalMode = DecalMode::NORMAL;
std::function<olc::Pixel(const int x, const int y, const olc::Pixel&, const olc::Pixel&)> funcPixelMode;
std::chrono::time_point<std::chrono::system_clock> m_tp1, m_tp2;
std::vector<olc::vi2d> vFontSpacing;
// State of keyboard
bool pKeyNewState[256] = { 0 };
bool pKeyOldState[256] = { 0 };
HWButton pKeyboardState[256] = { 0 };
// State of mouse
bool pMouseNewState[nMouseButtons] = { 0 };
bool pMouseOldState[nMouseButtons] = { 0 };
HWButton pMouseState[nMouseButtons] = { 0 };
// The main engine thread
void EngineThread();
// At the very end of this file, chooses which
// components to compile
void olc_ConfigureSystem();
// If anything sets this flag to false, the engine
// "should" shut down gracefully
static std::atomic<bool> bAtomActive;
public:
// "Break In" Functions
void olc_UpdateMouse(int32_t x, int32_t y);
void olc_UpdateMouseWheel(int32_t delta);
void olc_UpdateWindowSize(int32_t x, int32_t y);
void olc_UpdateViewport();
void olc_ConstructFontSheet();
void olc_CoreUpdate();
void olc_PrepareEngine();
void olc_UpdateMouseState(int32_t button, bool state);
void olc_UpdateKeyState(int32_t key, bool state);
void olc_UpdateMouseFocus(bool state);
void olc_UpdateKeyFocus(bool state);
void olc_Terminate();
// NOTE: Items Here are to be deprecated, I have left them in for now
// in case you are using them, but they will be removed.
// olc::vf2d vSubPixelOffset = { 0.0f, 0.0f };
friend class PGEX;
};
// O------------------------------------------------------------------------------O
// | PGE EXTENSION BASE CLASS - Permits access to PGE functions from extension |
// O------------------------------------------------------------------------------O
class PGEX
{
friend class olc::PixelGameEngine;
protected:
static PixelGameEngine* pge;
};
}
#endif // OLC_PGE_DEF
/*
Object Oriented Mode
~~~~~~~~~~~~~~~~~~~~
If the olcPixelGameEngine.h is called from several sources it can cause
multiple definitions of objects. To prevent this, ONLY ONE of the pathways
to including this file must have OLC_PGE_APPLICATION defined before it. This prevents
the definitions being duplicated.
If all else fails, create a file called "olcPixelGameEngine.cpp" with the following
two lines. Then you can just #include "olcPixelGameEngine.h" as normal without worrying
about defining things. Dont forget to include that cpp file as part of your build!
#define OLC_PGE_APPLICATION
#include "olcPixelGameEngine.h"
*/
// O------------------------------------------------------------------------------O
// | START OF OLC_PGE_APPLICATION |
// O------------------------------------------------------------------------------O
#ifdef OLC_PGE_APPLICATION
#undef OLC_PGE_APPLICATION
// O------------------------------------------------------------------------------O
// | olcPixelGameEngine INTERFACE IMPLEMENTATION (CORE) |
// | Note: The core implementation is platform independent |
// O------------------------------------------------------------------------------O
namespace olc
{
// O------------------------------------------------------------------------------O
// | olc::Pixel IMPLEMENTATION |
// O------------------------------------------------------------------------------O
Pixel::Pixel()
{ r = 0; g = 0; b = 0; a = nDefaultAlpha; }
Pixel::Pixel(uint8_t red, uint8_t green, uint8_t blue, uint8_t alpha)
{
n = red | (green << 8) | (blue << 16) | (alpha << 24);
} // Thanks jarekpelczar
Pixel::Pixel(uint32_t p)
{ n = p; }
bool Pixel::operator==(const Pixel& p) const
{ return n == p.n; }
bool Pixel::operator!=(const Pixel& p) const
{ return n != p.n; }
Pixel Pixel::operator * (const float i) const
{
float fR = std::min(255.0f, std::max(0.0f, float(r) * i));
float fG = std::min(255.0f, std::max(0.0f, float(g) * i));
float fB = std::min(255.0f, std::max(0.0f, float(b) * i));
return Pixel(uint8_t(fR), uint8_t(fG), uint8_t(fB), a);
}
Pixel Pixel::operator / (const float i) const
{
float fR = std::min(255.0f, std::max(0.0f, float(r) / i));
float fG = std::min(255.0f, std::max(0.0f, float(g) / i));
float fB = std::min(255.0f, std::max(0.0f, float(b) / i));
return Pixel(uint8_t(fR), uint8_t(fG), uint8_t(fB), a);
}
Pixel& Pixel::operator *=(const float i)
{
this->r = uint8_t(std::min(255.0f, std::max(0.0f, float(r) * i)));
this->g = uint8_t(std::min(255.0f, std::max(0.0f, float(g) * i)));
this->b = uint8_t(std::min(255.0f, std::max(0.0f, float(b) * i)));
return *this;
}
Pixel& Pixel::operator /=(const float i)
{
this->r = uint8_t(std::min(255.0f, std::max(0.0f, float(r) / i)));
this->g = uint8_t(std::min(255.0f, std::max(0.0f, float(g) / i)));
this->b = uint8_t(std::min(255.0f, std::max(0.0f, float(b) / i)));
return *this;
}
Pixel Pixel::operator + (const Pixel& p) const
{
uint8_t nR = uint8_t(std::min(255, std::max(0, int(r) + int(p.r))));
uint8_t nG = uint8_t(std::min(255, std::max(0, int(g) + int(p.g))));
uint8_t nB = uint8_t(std::min(255, std::max(0, int(b) + int(p.b))));
return Pixel(nR, nG, nB, a);
}
Pixel Pixel::operator - (const Pixel& p) const
{
uint8_t nR = uint8_t(std::min(255, std::max(0, int(r) - int(p.r))));
uint8_t nG = uint8_t(std::min(255, std::max(0, int(g) - int(p.g))));
uint8_t nB = uint8_t(std::min(255, std::max(0, int(b) - int(p.b))));
return Pixel(nR, nG, nB, a);
}
Pixel& Pixel::operator += (const Pixel& p)
{
this->r = uint8_t(std::min(255, std::max(0, int(r) + int(p.r))));
this->g = uint8_t(std::min(255, std::max(0, int(g) + int(p.g))));
this->b = uint8_t(std::min(255, std::max(0, int(b) + int(p.b))));
return *this;
}
Pixel& Pixel::operator -= (const Pixel& p)
{
this->r = uint8_t(std::min(255, std::max(0, int(r) + int(p.r))));
this->g = uint8_t(std::min(255, std::max(0, int(g) + int(p.g))));
this->b = uint8_t(std::min(255, std::max(0, int(b) + int(p.b))));
return *this;
}
Pixel Pixel::inv() const
{
uint8_t nR = uint8_t(std::min(255, std::max(0, 255 - int(r))));
uint8_t nG = uint8_t(std::min(255, std::max(0, 255 - int(g))));
uint8_t nB = uint8_t(std::min(255, std::max(0, 255 - int(b))));
return Pixel(nR, nG, nB, a);
}
Pixel PixelF(float red, float green, float blue, float alpha)
{
return Pixel(uint8_t(red * 255.0f), uint8_t(green * 255.0f), uint8_t(blue * 255.0f), uint8_t(alpha * 255.0f));
}
Pixel PixelLerp(const olc::Pixel& p1, const olc::Pixel& p2, float t)
{
return (p1 * t) + p2 * (1.0f - t);
}
// O------------------------------------------------------------------------------O
// | olc::Sprite IMPLEMENTATION |
// O------------------------------------------------------------------------------O
Sprite::Sprite()
{
pColData = nullptr; width = 0; height = 0;
}
Sprite::Sprite(const std::string& sImageFile, olc::ResourcePack* pack)
{
LoadFromFile(sImageFile, pack);
}
Sprite::Sprite(int32_t w, int32_t h)
{