Delete old sdlpp
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sdlpp.cpp
201
sdlpp.cpp
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#include "sdlpp.hpp"
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#ifdef _WIN32
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#include "SDL2/SDL_image.h"
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#else
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#include <SDL2/SDL_image.h>
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#endif
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#include <iostream>
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bool SDLPP::init() {
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if ( SDL_Init( SDL_INIT_VIDEO ) < 0 ) {
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std::cerr << "SDL could not initialize! SDL_Error: " << SDL_GetError()
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<< std::endl;
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return false;
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}
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if ( IMG_Init( IMG_INIT_PNG ) != IMG_INIT_PNG ) {
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std::cerr << "SDL_image could not initialize! SDL_image Error: "
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<< IMG_GetError() << std::endl;
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return false;
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}
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if ( TTF_Init() == -1 ) {
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std::cerr << "SDL_ttf could not initialize! SDL_ttf Error: "
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<< TTF_GetError() << std::endl;
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return false;
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}
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return true;
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}
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bool SDLPP::init( uint32_t SDL_OPTIONS ) {
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if ( SDL_Init( SDL_OPTIONS ) < 0 ) {
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std::cerr << "SDL could not initialize! SDL_Error: " << SDL_GetError()
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<< std::endl;
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return false;
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}
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if ( IMG_Init( IMG_INIT_PNG ) != IMG_INIT_PNG ) {
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std::cerr << "SDL_image could not initialize! SDL_image Error: "
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<< IMG_GetError() << std::endl;
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return false;
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}
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return true;
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}
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bool SDLPP::init( uint32_t SDL_OPTIONS, int IMAGE_OPTIONS ) {
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if ( SDL_Init( SDL_OPTIONS ) < 0 ) {
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std::cerr << "SDL could not initialize! SDL_Error: " << SDL_GetError()
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<< std::endl;
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return false;
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}
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if ( IMG_Init( IMAGE_OPTIONS ) != IMAGE_OPTIONS ) {
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std::cerr << "SDL_image could not initialize! SDL_image Error: "
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<< IMG_GetError() << std::endl;
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return false;
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}
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return true;
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}
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void SDLPP::CircleRender::render() {
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std::cout << "I'm a circle, look at me go!" << std::endl
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<< "My dimensions are: [" << x_ << ", " << y_
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<< "], radius: " << rad_ << std::endl;
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}
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// only rectangles for now
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bool intersects( const SDLPP::CollisionPolygon &p1,
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const SDLPP::CollisionPolygon &p2 ) {
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return !(
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p1.rightmost() < p2.leftmost() || p2.rightmost() < p1.leftmost() ||
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p1.topmost() > p2.bottommost() || p2.topmost() > p1.bottommost() );
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}
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bool infinityIntersection( const SDLPP::CollisionPolygon &infinite,
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const SDLPP::CollisionPolygon &other ) {
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int ileft = infinite.leftmost();
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int iright = infinite.rightmost();
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int itop = infinite.topmost();
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int ibottom = infinite.bottommost();
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bool ret =
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ileft != -1 && ileft <= other.rightmost() && ileft >= other.leftmost();
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ret |= iright != -1 && iright >= other.leftmost() &&
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iright <= other.rightmost();
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ret |= itop != -1 && itop <= other.bottommost() && itop >= other.topmost();
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ret |= ibottom != -1 && ibottom >= other.topmost() &&
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ibottom <= other.bottommost();
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ret |= ileft == -1 && iright == -1 && itop == -1 && ibottom == -1;
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return ret;
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}
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bool SDLPP::Rect::colidesWith( const SDLPP::CollisionPolygon &other ) const {
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if ( other.isCircle() ) {
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return other.colidesWith( *this );
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}
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if ( other.isInfinite() ) {
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return infinityIntersection( other, *this );
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}
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if ( isInfinite() )
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return infinityIntersection( *this, other );
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return intersects( *this, other );
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}
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bool SDLPP::Circle::colidesWith( const SDLPP::CollisionPolygon &other ) const {
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if ( other.isCircle() ) {
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int otherRad = ( other.rightmost() - other.leftmost() ) / 2;
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int thisRad = getRadius();
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int totalDist = otherRad + thisRad;
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int xdiff = other.leftmost() + otherRad - ( leftmost() + thisRad );
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int ydiff = other.topmost() + otherRad - ( topmost() + thisRad );
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return ( xdiff * xdiff + ydiff * ydiff ) <= totalDist * totalDist;
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} else if ( other.isInfinite() ) {
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return infinityIntersection( other, *this );
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}
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int rad = rad_;
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int centerx = getX();
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int centery = getY();
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if ( other.topmost() <= centery && other.bottommost() >= centery ) {
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return other.leftmost() <= rightmost() &&
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other.rightmost() >= leftmost();
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} else if ( other.leftmost() <= centerx && other.rightmost() >= centerx ) {
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return other.topmost() <= bottommost() &&
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other.bottommost() >= topmost();
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}
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int pointx = 0, pointy = 0;
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if ( centerx > other.rightmost() ) {
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pointx = other.rightmost();
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} else {
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pointx = other.leftmost();
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}
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if ( centery < other.topmost() ) {
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pointy = other.topmost();
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} else {
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pointy = other.bottommost();
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}
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int distancesquared = ( pointx - centerx ) * ( pointx - centerx ) +
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( pointy - centery ) * ( pointy - centery );
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return distancesquared <= rad * rad;
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}
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int SDLPP::hex2num( char c ) {
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if ( c <= '9' )
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return c - '0';
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switch ( c ) {
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case 'a':
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case 'A':
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return 10;
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case 'b':
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case 'B':
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return 11;
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case 'c':
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case 'C':
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return 12;
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case 'd':
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case 'D':
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return 13;
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case 'e':
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case 'E':
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return 14;
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default:
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return 15;
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}
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}
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std::tuple< int, int, int, int >
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SDLPP::getColorsHEX( const std::string &color ) {
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int red = 0, green = 0, blue = 0, alpha = 255;
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const char *color_ptr = color.c_str();
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if ( color_ptr[0] == '#' )
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color_ptr++;
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red = hex2num( color_ptr[0] ) * 16 + hex2num( color_ptr[1] );
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green = hex2num( color_ptr[2] ) * 16 + hex2num( color_ptr[3] );
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blue = hex2num( color_ptr[4] ) * 16 + hex2num( color_ptr[5] );
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if ( color_ptr[6] != '\0' )
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alpha = hex2num( color_ptr[6] ) * 16 + hex2num( color_ptr[7] );
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return { red, green, blue, alpha };
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}
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SDL_Color
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SDLPP::getSDLColorTuple( const std::tuple< int, int, int, int > &tuple ) {
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SDL_Color ret_color{};
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ret_color.r = std::get< 0 >( tuple );
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ret_color.g = std::get< 1 >( tuple );
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ret_color.b = std::get< 2 >( tuple );
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ret_color.a = std::get< 3 >( tuple );
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return ret_color;
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}
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SDL_Color SDLPP::getSDLColorHEX( const std::string &color ) {
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auto color_tuple = SDLPP::getColorsHEX( color );
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return getSDLColorTuple( color_tuple );
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}
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std::tuple< int, int, int, int >
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SDLPP::getColorsSDLColor( const SDL_Color &color ) {
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return { color.r, color.g, color.b, color.a };
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}
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bool SDLPP::getSDLEvent( SDL_Event &e ) {
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if( SDL_PeepEvents(&e, 1, SDL_PEEKEVENT, SDL_FIRSTEVENT, SDL_LASTEVENT) == 1 ) {
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SDL_PeepEvents(&e, 1, SDL_GETEVENT, SDL_FIRSTEVENT, SDL_LASTEVENT);
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return true;
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}
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return false;
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}
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