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fatpup-ui.cpp
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fatpup-ui.cpp
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#include <iostream>
#include "SDL.h"
#include "SDL_image.h"
#include "SDL_ttf.h"
#include "board.h"
#include "movepanel.h"
static constexpr int targetWindowHeight = 1200;
static constexpr int targetWindowAspectNom = 5;
static constexpr int targetWindowAspectDenom = 4;
static constexpr unsigned int refreshTimeMs = 100;
struct SDLContext
{
SDL_Window* window = nullptr;
SDL_Renderer* renderer = nullptr;
};
bool InitSDL(SDLContext& ctx)
{
if (SDL_Init(SDL_INIT_VIDEO) < 0)
{
std::cerr << "SDL_Init failed, error: " << SDL_GetError() << "\n";
return false;
}
int imgFlags = IMG_INIT_PNG;
if (!(IMG_Init(imgFlags) & imgFlags))
{
std::cerr << "IMG_Init failed, error: " << IMG_GetError() << "\n";
return false;
}
if (TTF_Init() < 0)
{
std::cerr << "TTF_Init failed, error: " << TTF_GetError() << "\n";
return false;
}
SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "1");
SDL_DisplayMode displayMode;
SDL_GetCurrentDisplayMode(0, &displayMode);
auto windowHeight = displayMode.h * 3 / 4;
ctx.window = SDL_CreateWindow("Fatpup Chess", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
windowHeight * targetWindowAspectNom / targetWindowAspectDenom,
windowHeight, SDL_WINDOW_RESIZABLE | SDL_WINDOW_SHOWN | SDL_WINDOW_ALLOW_HIGHDPI);
if (!ctx.window)
{
std::cerr << "SDL_CreateWindow failed, error: " << SDL_GetError() << "\n";
return false;
}
ctx.renderer = SDL_CreateRenderer(ctx.window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
if (!ctx.renderer)
{
std::cerr << "SDL_CreateRenderer failed, error: " << SDL_GetError() << "\n";
return false;
}
return true;
}
int main(int argc, char* argv[])
{
fatpup::Engine* engine = fatpup::Engine::Create("minimax");
if (!engine)
{
std::cerr << "Can't create minimax engine, terminating...\n";
return -1;
}
SDLContext ctx;
if (InitSDL(ctx))
{
Board board(ctx.renderer, targetWindowHeight, targetWindowHeight, true);
fatpup::Position initialPos;
initialPos.setInitial();
board.SetPosition(initialPos);
engine->SetPosition(initialPos);
board.SetEngine(engine);
MovePanel movePanel(ctx.renderer, targetWindowHeight,
targetWindowHeight * (targetWindowAspectNom - targetWindowAspectDenom) / targetWindowAspectDenom,
targetWindowHeight);
board.SetMovePanel(&movePanel);
int currWindowWidth = 0, currWindowHeight = 0;
SDL_GetWindowSize(ctx.window, &currWindowWidth, &currWindowHeight);
float renderScale = 1.0f;
float pixelScale = 1.0f;
bool windowSizeChanged = true;
unsigned int nextRefreshTimeMs = 0;
SDL_Event e;
bool quit = false;
while (!quit)
{
while (SDL_PollEvent(&e) > 0)
{
switch (e.type)
{
case SDL_QUIT:
quit = true;
break;
case SDL_MOUSEBUTTONDOWN:
if (e.button.button == SDL_BUTTON_LEFT)
board.OnClick((int)(e.button.x / pixelScale), (int)(e.button.y / pixelScale));
break;
case SDL_WINDOWEVENT:
{
switch(e.window.event)
{
case SDL_WINDOWEVENT_RESIZED:
windowSizeChanged = true;
break;
}
}
}
}
if (windowSizeChanged)
{
windowSizeChanged = false;
int width = 0, height = 0;
SDL_GetWindowSize(ctx.window, &width, &height);
width -= (width % 5);
height -= (height % 4);
if (width < 80)
width = 80;
if (height < 64)
height = 64;
if (std::abs(width - currWindowWidth) > std::abs(height - currWindowHeight))
height = width * 4 / 5;
else
width = height * 5 / 4;
SDL_SetWindowSize(ctx.window, width, height);
currWindowWidth = width;
currWindowHeight = height;
pixelScale = (float)currWindowHeight / (float)targetWindowHeight;
int highDpiWidth = 0, highDpiHeight = 0;
SDL_GetRendererOutputSize(ctx.renderer, &highDpiWidth, &highDpiHeight);
renderScale = (float)highDpiHeight / (float)targetWindowHeight;
}
unsigned int currTimeMs = SDL_GetTicks();
if (!SDL_TICKS_PASSED(currTimeMs, nextRefreshTimeMs))
SDL_Delay(refreshTimeMs / 4);
else
{
nextRefreshTimeMs = currTimeMs + refreshTimeMs;
SDL_SetRenderDrawColor(ctx.renderer, 0, 0, 0, 255);
SDL_RenderClear(ctx.renderer);
SDL_RenderSetScale(ctx.renderer, renderScale, renderScale);
board.Render();
movePanel.Render();
SDL_RenderSetScale(ctx.renderer, 1.0f, 1.0f);
SDL_RenderPresent(ctx.renderer);
}
}
}
delete engine;
if (ctx.renderer)
SDL_DestroyRenderer(ctx.renderer);
if (ctx.window)
SDL_DestroyWindow(ctx.window);
TTF_Quit();
IMG_Quit();
SDL_Quit();
return 0;
}