misc.cpp

#include "misc.h"
#include <stdio.h>
#include <string.h>
#include <SFML/Graphics/RectangleShape.hpp>

using namespace sf;

std::string LowerCaseString(const std::string &str) {
	std::string data = str;
	std::transform(data.begin(), data.end(), data.begin(), tolower);
	return data;
}
double get_random(void) {
	return double(rand())/RAND_MAX;
}
double get_random(double max) {
	return get_random()*max;
}
void *load_file(const char *input_file_name, unsigned long *file_size) {
	char *file_contents;
	long input_file_size;
	FILE *input_file = fopen(input_file_name, "rb");
	if (!input_file) return NULL;
	fseek(input_file, 0, SEEK_END);
	input_file_size = ftell(input_file);
	*file_size = input_file_size;
	rewind(input_file);
	file_contents = (char*)malloc(input_file_size * (sizeof(char)));
	if (!file_contents) return NULL;
	if (fread(file_contents, sizeof(char), input_file_size, input_file)<1) {
		fclose(input_file);
		free(file_contents);
		return NULL;
	}
	fclose(input_file);
	return file_contents;
}

void load_sprite(Sprite &sprite, Texture &tex, const char *path)
{
	if (!tex.loadFromFile(path)) {
		fprintf(stderr, "Failed to load %s\n", path);
		exit(1);
	}
	tex.setSmooth(true);
	sprite.setTexture(tex);
	FloatRect r=sprite.getLocalBounds();
	sprite.setOrigin(Vector2f(r.width/2, r.height/2));
}
void load_texture(Sprite &sprite, Texture &tex, const char *path) {
	load_sprite(sprite, tex, path);
	sprite.setOrigin(0,0);
	tex.setRepeated(true);
}
bool string2long(const char *s, long *v) {
	int cnt=0;
	long vtemp;
	if (!v) v = &vtemp;
	if (sscanf(s, "%ld%n", v, &cnt)<=0 || cnt != int(strlen(s))) {*v=0;return false;}
	return true;
}
bool string2dbl(const char *s, double *v) {
	int cnt=0;
	double vtemp;
	if (!v) v = &vtemp;
	if (sscanf(s, "%lf%n", v, &cnt)<=0 || cnt != int(strlen(s))) {*v=0;return false;}
	return true;
}
char *cstrdup(const char *p) {
	size_t ln = strlen(p);
	char *out = (char*)malloc(ln+1);
	if (!out) return NULL;
	memcpy(out, p, ln+1);
	return out;
}


void drawSprite(Sprite &spr, RenderTarget &target) {
	RectangleShape shape;
	Texture &sftexture = const_cast<Texture&>(*spr.getTexture());
	FloatRect r = spr.getLocalBounds();
	shape.setSize(Vector2f(r.width, r.height));
	shape.setOrigin(spr.getOrigin());
	shape.setRotation(spr.getRotation());
	shape.setPosition(spr.getPosition());
	shape.setScale(spr.getScale());
	shape.setTexture(spr.getTexture());
	shape.setFillColor(spr.getColor());
	sftexture.setRepeated(false);
	target.draw(shape);
	sftexture.setRepeated(true);
}