nuclear@0: #include <stdio.h>
nuclear@0: #include <string.h>
nuclear@0: #include "level.h"
nuclear@2: #include "datapath.h"
nuclear@3: #include "opengl.h"
nuclear@2: 
nuclear@2: using namespace tinyxml2;
nuclear@0: 
nuclear@0: Level::Level()
nuclear@0: {
nuclear@0: }
nuclear@0: 
nuclear@0: Level::~Level()
nuclear@0: {
nuclear@0: }
nuclear@0: 
nuclear@0: bool Level::load(const char *fname)
nuclear@0: {
nuclear@2: 	push_data_path();
nuclear@2: 	add_data_path(fname);
nuclear@2: 
nuclear@2: 	if(xml.LoadFile(fname) != 0) {
nuclear@0: 		fprintf(stderr, "failed to load level: %s\n", fname);
nuclear@2: 		pop_data_path();
nuclear@0: 		return false;
nuclear@0: 	}
nuclear@0: 
nuclear@1: 	if(strcmp(xml.RootElement()->Name(), "level") != 0) {
nuclear@0: 		fprintf(stderr, "invalid level file: %s\n", fname);
nuclear@2: 		pop_data_path();
nuclear@0: 		return false;
nuclear@0: 	}
nuclear@2: 
nuclear@2: 	XMLNode *node = xml.RootElement()->FirstChild();
nuclear@2: 	do {
nuclear@2: 		XMLElement *elem = node->ToElement();
nuclear@2: 		if(elem) {
nuclear@2: 			if(strcmp(elem->Name(), "map") == 0) {
nuclear@2: 				LevelMap map;
nuclear@2: 
nuclear@2: 				if(!map.load(elem)) {
nuclear@2: 					pop_data_path();
nuclear@2: 					return false;
nuclear@2: 				}
nuclear@2: 				levelmaps[map.get_name()] = std::move(map);
nuclear@2: 
nuclear@2: 			} else {
nuclear@2: 				fprintf(stderr, "ignoring unrecognized element: %s\n", elem->Name());
nuclear@2: 			}
nuclear@2: 		}
nuclear@2: 	} while((node = node->NextSibling()));
nuclear@2: 
nuclear@2: 	pop_data_path();
nuclear@2: 	return true;
nuclear@2: }
nuclear@2: 
nuclear@3: void Level::draw() const
nuclear@3: {
nuclear@3: 	auto iter = levelmaps.find("height");
nuclear@3: 	if(iter == levelmaps.end()) {
nuclear@3: 		return;
nuclear@3: 	}
nuclear@3: 
nuclear@3: 	img_pixmap *hmap = (img_pixmap*)iter->second.get_pixmap();
nuclear@3: 
nuclear@3: 	glBegin(GL_POINTS);
nuclear@3: 	for(int i=0; i<hmap->height; i++) {
nuclear@3: 		for(int j=0; j<hmap->width; j++) {
nuclear@3: 			int height;
nuclear@3: 			img_getpixel1i(hmap, j, i, &height);
nuclear@3: 
nuclear@3: 			float x = (float)j / (float)hmap->width - 0.5;
nuclear@3: 			float y = height / 255.0;
nuclear@3: 			float z = (float)i / (float)hmap->height - 0.5;
nuclear@3: 
nuclear@3: 			glColor3f(y, 0.0, 1.0 - y);
nuclear@3: 			glVertex3f(x, y, z);
nuclear@3: 		}
nuclear@3: 	}
nuclear@3: 	glEnd();
nuclear@3: }
nuclear@3: 
nuclear@2: 
nuclear@2: LevelMap::LevelMap()
nuclear@2: {
nuclear@2: 	init();
nuclear@2: }
nuclear@2: 
nuclear@2: void LevelMap::init()
nuclear@2: {
nuclear@2: 	scale = 1.0f;
nuclear@2: 	img_init(&img);
nuclear@2: 	name = 0;
nuclear@2: }
nuclear@2: 
nuclear@2: LevelMap::~LevelMap()
nuclear@2: {
nuclear@2: 	destroy();
nuclear@2: }
nuclear@2: 
nuclear@2: void LevelMap::destroy()
nuclear@2: {
nuclear@2: 	if(img.pixels) {
nuclear@2: 		img_destroy(&img);
nuclear@2: 	}
nuclear@2: 	delete [] name;
nuclear@2: }
nuclear@2: 
nuclear@2: // copy
nuclear@2: LevelMap::LevelMap(const LevelMap &map)
nuclear@2: {
nuclear@2: 	init();
nuclear@2: 	*this = map;
nuclear@2: }
nuclear@2: 
nuclear@2: LevelMap &LevelMap::operator =(const LevelMap &map)
nuclear@2: {
nuclear@2: 	if(this != &map) {
nuclear@2: 		destroy();
nuclear@2: 
nuclear@2: 		scale = map.scale;
nuclear@2: 		img_init(&img);
nuclear@2: 		img_copy(&img, (img_pixmap*)&map.img);
nuclear@2: 
nuclear@2: 		name = new char[strlen(map.name) + 1];
nuclear@2: 		strcpy(name, map.name);
nuclear@2: 	}
nuclear@2: 	return *this;
nuclear@2: }
nuclear@2: 
nuclear@2: // move semantics
nuclear@2: LevelMap::LevelMap(LevelMap &&map)
nuclear@2: {
nuclear@2: 	init();
nuclear@2: 	*this = std::move(map);
nuclear@2: }
nuclear@2: 
nuclear@2: LevelMap &LevelMap::operator =(LevelMap &&map)
nuclear@2: {
nuclear@2: 	if(this != &map) {
nuclear@2: 		destroy();
nuclear@2: 
nuclear@2: 		scale = map.scale;
nuclear@2: 
nuclear@2: 		img = map.img;
nuclear@2: 		map.img.pixels = 0;
nuclear@2: 		map.img.name = 0;
nuclear@2: 
nuclear@2: 		name = map.name;
nuclear@2: 		map.name = 0;
nuclear@2: 	}
nuclear@2: 
nuclear@2: 	return *this;
nuclear@2: }
nuclear@2: 
nuclear@2: bool LevelMap::load(XMLElement *xelem)
nuclear@2: {
nuclear@2: 	char fname[PATH_MAX];
nuclear@2: 
nuclear@2: 	const char *attr = xelem->Attribute("type");
nuclear@2: 	if(!attr) {
nuclear@2: 		fprintf(stderr, "map element without a type attribute\n");
nuclear@2: 		return false;
nuclear@2: 	}
nuclear@2: 	name = new char[strlen(attr) + 1];
nuclear@2: 	strcpy(name, attr);
nuclear@2: 
nuclear@2: 	attr = xelem->Attribute("file");
nuclear@2: 	if(!attr) {
nuclear@2: 		fprintf(stderr, "map element without a file attribute\n");
nuclear@2: 		return false;
nuclear@2: 	}
nuclear@2: 	if(!find_file(attr, fname)) {
nuclear@2: 		fprintf(stderr, "failed to locate image: %s\n", attr);
nuclear@2: 		return false;
nuclear@2: 	}
nuclear@2: 
nuclear@2: 	if(img_load(&img, fname) == -1) {
nuclear@2: 		fprintf(stderr, "failed to load image: %s\n", fname);
nuclear@2: 		return false;
nuclear@2: 	}
nuclear@2: 
nuclear@2: 	float val;
nuclear@2: 	if(xelem->QueryFloatAttribute("scale", &val) == 0) {
nuclear@2: 		scale = val;
nuclear@2: 	}
nuclear@1: 	return true;
nuclear@0: }
nuclear@2: 
nuclear@2: float LevelMap::get_scale() const
nuclear@2: {
nuclear@2: 	return scale;
nuclear@2: }
nuclear@2: 
nuclear@2: const img_pixmap *LevelMap::get_pixmap() const
nuclear@2: {
nuclear@2: 	return &img;
nuclear@2: }
nuclear@2: 
nuclear@2: const char *LevelMap::get_name() const
nuclear@2: {
nuclear@2: 	return name;
nuclear@2: }