Kayne Ruse
48bf0f549d
After a few days of work, I'm committing what i've done so far. Mostly I've cherry picked the best parts of the multiplayer branch's modules, and adapted them for use here. I've written a few new components, and I've learnt a few things along the way. I may continue with this branch for a while, before moving the changes into the main branch. Alternatively, it might turn out that this single player version is more fun. We'll see. I've swapped the config system for a pure lua version instead. This is actually fairly flexible. I've also changed the map system and it's API a great deal. The tile sheet can be loaded from lua, and the save directory isn't hard coded anymore. I think this would be a good testbed for a lot of different systems, including the collision system, however the current system (using vectors) is inadequate. I'll have to dig up the old BBox, possilby. This branch will piggy back on the main repo for a while.
146 lines
3.7 KiB
C++
146 lines
3.7 KiB
C++
/* Copyright: (c) Kayne Ruse 2013, 2014
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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*
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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*
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* 3. This notice may not be removed or altered from any source
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* distribution.
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*/
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#include "image.hpp"
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#include <stdexcept>
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#include <sstream>
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Image& Image::operator=(Image const& rhs) {
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//don't screw yourself
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if (this == &rhs) {
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return *this;
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}
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FreeSurface();
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//Copy the other Image's stuff
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surface = rhs.surface;
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clip = rhs.clip;
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local = false;
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}
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Image& Image::operator=(Image&& rhs) {
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//don't screw yourself
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if (this == &rhs) {
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return *this;
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}
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FreeSurface();
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//Steal the other Image's stuff
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surface = rhs.surface;
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clip = rhs.clip;
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local = rhs.local;
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rhs.surface = nullptr;
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rhs.clip = {0, 0, 0, 0};
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rhs.local = false;
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}
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SDL_Surface* Image::LoadSurface(std::string fname) {
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FreeSurface();
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SDL_Surface* p = SDL_LoadBMP(fname.c_str());
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if (!p) {
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std::ostringstream os;
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os << "Failed to load file: " << fname;
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throw(std::runtime_error(os.str()));
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}
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surface = p;
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clip = {0, 0, (Uint16)surface->w, (Uint16)surface->h};
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local = true;
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SetTransparentColor(255, 0, 255); //default
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return surface;
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}
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SDL_Surface* Image::CreateSurface(Uint16 w, Uint16 h) {
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FreeSurface();
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Uint32 rmask, gmask, bmask, amask;
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#if SDL_BYTEORDER == SDL_BIG_ENDIAN
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rmask = 0xff000000;
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gmask = 0x00ff0000;
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bmask = 0x0000ff00;
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amask = 0x000000ff;
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#else
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rmask = 0x000000ff;
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gmask = 0x0000ff00;
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bmask = 0x00ff0000;
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amask = 0xff000000;
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#endif
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SDL_Surface* p = SDL_CreateRGBSurface(SDL_SWSURFACE, w, h, 32, rmask, gmask, bmask, amask);
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if (!p) {
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throw(std::runtime_error("Failed to create Image surface"));
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}
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surface = p;
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clip = {0, 0, (Uint16)surface->w, (Uint16)surface->h};
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local = true;
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SetTransparentColor(255, 0, 255); //default
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return surface;
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}
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SDL_Surface* Image::SetSurface(SDL_Surface* p) {
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FreeSurface();
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if (!p) {
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throw(std::invalid_argument("No surface pointer provided"));
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}
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surface = p;
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clip = {0, 0, (Uint16)surface->w, (Uint16)surface->h};
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local = false;
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return surface;
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}
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void Image::FreeSurface() {
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if (local) {
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SDL_FreeSurface(surface);
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local = false;
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}
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surface = nullptr;
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clip = {0, 0, 0, 0};
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}
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void Image::DrawTo(SDL_Surface* dest, Sint16 x, Sint16 y) {
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if (!surface) {
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throw(std::logic_error("No image surface to draw"));
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}
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SDL_Rect sclip = clip, dclip = {x,y};
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SDL_BlitSurface(surface, &sclip, dest, &dclip);
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}
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void Image::SetTransparentColor(Uint8 r, Uint8 g, Uint8 b) {
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if (!surface) {
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throw(std::logic_error("Failed to set the transparent color"));
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}
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if (!local) {
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throw(std::logic_error("Cannot set the transparent color of a non-local surface"));
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}
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SDL_SetColorKey(surface, SDL_SRCCOLORKEY, SDL_MapRGB(surface->format, r, g, b));
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}
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void Image::ClearTransparentColor() {
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if (!surface) {
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throw(std::logic_error("Failed to clear the transparent color"));
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}
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if (!local) {
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throw(std::logic_error("Cannot clear the transparent color of a non-local surface"));
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}
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SDL_SetColorKey(surface, 0, 0);
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}
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