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virtualx-engine/main/tests/test_math.cpp
Rémi Verschelde 5dbf1809c6 A Whole New World (clang-format edition) 
I can show you the code
Pretty, with proper whitespace
Tell me, coder, now when did
You last write readable code?

I can open your eyes
Make you see your bad indent
Force you to respect the style
The core devs agreed upon

A whole new world
A new fantastic code format
A de facto standard
With some sugar
Enforced with clang-format

A whole new world
A dazzling style we all dreamed of
And when we read it through
It's crystal clear
That now we're in a whole new world of code
2017-03-05 16:44:50 +01:00

780 lines
17 KiB
C++
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/*************************************************************************/
/* test_math.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "test_math.h"
#include "camera_matrix.h"
#include "math_funcs.h"
#include "matrix3.h"
#include "os/file_access.h"
#include "os/keyboard.h"
#include "os/os.h"
#include "print_string.h"
#include "scene/main/node.h"
#include "scene/resources/texture.h"
#include "servers/visual/shader_language.h"
#include "transform.h"
#include "ustring.h"
#include "variant.h"
#include "vmap.h"
#include "method_ptrcall.h"
namespace TestMath {
class GetClassAndNamespace {
String code;
int idx;
int line;
String error_str;
bool error;
Variant value;
String class_name;
enum Token {
TK_BRACKET_OPEN,
TK_BRACKET_CLOSE,
TK_CURLY_BRACKET_OPEN,
TK_CURLY_BRACKET_CLOSE,
TK_PERIOD,
TK_COLON,
TK_COMMA,
TK_SYMBOL,
TK_IDENTIFIER,
TK_STRING,
TK_NUMBER,
TK_EOF,
TK_ERROR
};
Token get_token() {
while (true) {
switch (code[idx]) {
case '\n': {
line++;
idx++;
break;
};
case 0: {
return TK_EOF;
} break;
case '{': {
idx++;
return TK_CURLY_BRACKET_OPEN;
};
case '}': {
idx++;
return TK_CURLY_BRACKET_CLOSE;
};
case '[': {
idx++;
return TK_BRACKET_OPEN;
};
case ']': {
idx++;
return TK_BRACKET_CLOSE;
};
case ':': {
idx++;
return TK_COLON;
};
case ',': {
idx++;
return TK_COMMA;
};
case '.': {
idx++;
return TK_PERIOD;
};
case '#': {
//compiler directive
while (code[idx] != '\n' && code[idx] != 0) {
idx++;
}
continue;
} break;
case '/': {
switch (code[idx + 1]) {
case '*': { // block comment
idx += 2;
while (true) {
if (code[idx] == 0) {
error_str = "Unterminated comment";
error = true;
return TK_ERROR;
} else if (code[idx] == '*' && code[idx + 1] == '/') {
idx += 2;
break;
} else if (code[idx] == '\n') {
line++;
}
idx++;
}
} break;
case '/': { // line comment skip
while (code[idx] != '\n' && code[idx] != 0) {
idx++;
}
} break;
default: {
value = "/";
idx++;
return TK_SYMBOL;
}
}
continue; // a comment
} break;
case '\'':
case '"': {
CharType begin_str = code[idx];
idx++;
String tk_string = String();
while (true) {
if (code[idx] == 0) {
error_str = "Unterminated String";
error = true;
return TK_ERROR;
} else if (code[idx] == begin_str) {
idx++;
break;
} else if (code[idx] == '\\') {
//escaped characters...
idx++;
CharType next = code[idx];
if (next == 0) {
error_str = "Unterminated String";
error = true;
return TK_ERROR;
}
CharType res = 0;
switch (next) {
case 'b': res = 8; break;
case 't': res = 9; break;
case 'n': res = 10; break;
case 'f': res = 12; break;
case 'r':
res = 13;
break;
/* too much, not needed for now
case 'u': {
//hexnumbarh - oct is deprecated
for(int j=0;j<4;j++) {
CharType c = code[idx+j+1];
if (c==0) {
r_err_str="Unterminated String";
return ERR_PARSE_ERROR;
}
if (!((c>='0' && c<='9') || (c>='a' && c<='f') || (c>='A' && c<='F'))) {
r_err_str="Malformed hex constant in string";
return ERR_PARSE_ERROR;
}
CharType v;
if (c>='0' && c<='9') {
v=c-'0';
} else if (c>='a' && c<='f') {
v=c-'a';
v+=10;
} else if (c>='A' && c<='F') {
v=c-'A';
v+=10;
} else {
ERR_PRINT("BUG");
v=0;
}
res<<=4;
res|=v;
}
idx+=4; //will add at the end anyway
} break;*/
case '\"': res = '\"'; break;
case '\\':
res = '\\';
break;
//case '/': res='/'; break;
default: {
res = next;
//r_err_str="Invalid escape sequence";
//return ERR_PARSE_ERROR;
} break;
}
tk_string += res;
} else {
if (code[idx] == '\n')
line++;
tk_string += code[idx];
}
idx++;
}
value = tk_string;
return TK_STRING;
} break;
default: {
if (code[idx] <= 32) {
idx++;
break;
}
if ((code[idx] >= 33 && code[idx] <= 47) || (code[idx] >= 58 && code[idx] <= 64) || (code[idx] >= 91 && code[idx] <= 96) || (code[idx] >= 123 && code[idx] <= 127)) {
value = String::chr(code[idx]);
idx++;
return TK_SYMBOL;
}
if (code[idx] == '-' || (code[idx] >= '0' && code[idx] <= '9')) {
//a number
const CharType *rptr;
double number = String::to_double(&code[idx], &rptr);
idx += (rptr - &code[idx]);
value = number;
return TK_NUMBER;
} else if ((code[idx] >= 'A' && code[idx] <= 'Z') || (code[idx] >= 'a' && code[idx] <= 'z') || code[idx] > 127) {
String id;
while ((code[idx] >= 'A' && code[idx] <= 'Z') || (code[idx] >= 'a' && code[idx] <= 'z') || code[idx] > 127) {
id += code[idx];
idx++;
}
value = id;
return TK_IDENTIFIER;
} else {
error_str = "Unexpected character.";
error = true;
return TK_ERROR;
}
}
}
}
}
public:
Error parse(const String &p_code, const String &p_known_class_name = String()) {
code = p_code;
idx = 0;
line = 0;
error_str = String();
error = false;
value = Variant();
class_name = String();
bool use_next_class = false;
Token tk = get_token();
Map<int, String> namespace_stack;
int curly_stack = 0;
while (!error || tk != TK_EOF) {
if (tk == TK_BRACKET_OPEN) {
tk = get_token();
if (tk == TK_IDENTIFIER && String(value) == "ScriptClass") {
if (get_token() == TK_BRACKET_CLOSE) {
use_next_class = true;
}
}
} else if (tk == TK_IDENTIFIER && String(value) == "class") {
tk = get_token();
if (tk == TK_IDENTIFIER) {
String name = value;
if (use_next_class || p_known_class_name == name) {
for (Map<int, String>::Element *E = namespace_stack.front(); E; E = E->next()) {
class_name += E->get() + ".";
}
class_name += String(value);
break;
}
}
} else if (tk == TK_IDENTIFIER && String(value) == "namespace") {
String name;
int at_level = curly_stack;
while (true) {
tk = get_token();
if (tk == TK_IDENTIFIER) {
name += String(value);
}
tk = get_token();
if (tk == TK_PERIOD) {
name += ".";
} else if (tk == TK_CURLY_BRACKET_OPEN) {
curly_stack++;
break;
} else {
break; //whathever else
}
}
if (name != String()) {
namespace_stack[at_level] = name;
}
} else if (tk == TK_CURLY_BRACKET_OPEN) {
curly_stack++;
} else if (tk == TK_CURLY_BRACKET_CLOSE) {
curly_stack--;
if (namespace_stack.has(curly_stack)) {
namespace_stack.erase(curly_stack);
}
}
tk = get_token();
}
if (error)
return ERR_PARSE_ERROR;
return OK;
}
String get_error() {
return error_str;
}
String get_class() {
return class_name;
}
};
void test_vec(Plane p_vec) {
CameraMatrix cm;
cm.set_perspective(45, 1, 0, 100);
Plane v0 = cm.xform4(p_vec);
print_line("out: " + v0);
v0.normal.z = (v0.d / 100.0 * 2.0 - 1.0) * v0.d;
print_line("out_F: " + v0);
/*v0: 0, 0, -0.1, 0.1
v1: 0, 0, 0, 0.1
fix: 0, 0, 0, 0.1
v0: 0, 0, 1.302803, 1.5
v1: 0, 0, 1.401401, 1.5
fix: 0, 0, 1.401401, 1.5
v0: 0, 0, 25.851850, 26
v1: 0, 0, 25.925926, 26
fix: 0, 0, 25.925924, 26
v0: 0, 0, 49.899902, 50
v1: 0, 0, 49.949947, 50
fix: 0, 0, 49.949951, 50
v0: 0, 0, 100, 100
v1: 0, 0, 100, 100
fix: 0, 0, 100, 100
*/
}
uint32_t ihash(uint32_t a) {
a = (a + 0x7ed55d16) + (a << 12);
a = (a ^ 0xc761c23c) ^ (a >> 19);
a = (a + 0x165667b1) + (a << 5);
a = (a + 0xd3a2646c) ^ (a << 9);
a = (a + 0xfd7046c5) + (a << 3);
a = (a ^ 0xb55a4f09) ^ (a >> 16);
return a;
}
uint32_t ihash2(uint32_t a) {
a = (a ^ 61) ^ (a >> 16);
a = a + (a << 3);
a = a ^ (a >> 4);
a = a * 0x27d4eb2d;
a = a ^ (a >> 15);
return a;
}
uint32_t ihash3(uint32_t a) {
a = (a + 0x479ab41d) + (a << 8);
a = (a ^ 0xe4aa10ce) ^ (a >> 5);
a = (a + 0x9942f0a6) - (a << 14);
a = (a ^ 0x5aedd67d) ^ (a >> 3);
a = (a + 0x17bea992) + (a << 7);
return a;
}
MainLoop *test() {
print_line("Dvectors: " + itos(MemoryPool::allocs_used));
print_line("Mem used: " + itos(MemoryPool::total_memory));
print_line("MAx mem used: " + itos(MemoryPool::max_memory));
PoolVector<int> ints;
ints.resize(20);
{
PoolVector<int>::Write w;
w = ints.write();
for (int i = 0; i < ints.size(); i++) {
w[i] = i;
}
}
PoolVector<int> posho = ints;
{
PoolVector<int>::Read r = posho.read();
for (int i = 0; i < posho.size(); i++) {
print_line(itos(i) + " : " + itos(r[i]));
}
}
print_line("later Dvectors: " + itos(MemoryPool::allocs_used));
print_line("later Mem used: " + itos(MemoryPool::total_memory));
print_line("Mlater Ax mem used: " + itos(MemoryPool::max_memory));
return NULL;
List<String> cmdlargs = OS::get_singleton()->get_cmdline_args();
if (cmdlargs.empty()) {
//try editor!
return NULL;
}
String test = cmdlargs.back()->get();
FileAccess *fa = FileAccess::open(test, FileAccess::READ);
if (!fa) {
ERR_EXPLAIN("Could not open file: " + test);
ERR_FAIL_V(NULL);
}
Vector<uint8_t> buf;
int flen = fa->get_len();
buf.resize(fa->get_len() + 1);
fa->get_buffer(&buf[0], flen);
buf[flen] = 0;
String code;
code.parse_utf8((const char *)&buf[0]);
GetClassAndNamespace getclass;
if (getclass.parse(code)) {
print_line("Parse error: " + getclass.get_error());
} else {
print_line("Found class: " + getclass.get_class());
}
return NULL;
{
Vector<int> hashes;
List<StringName> tl;
ClassDB::get_class_list(&tl);
for (List<StringName>::Element *E = tl.front(); E; E = E->next()) {
Vector<uint8_t> m5b = E->get().operator String().md5_buffer();
hashes.push_back(hashes.size());
}
//hashes.resize(50);
for (int i = nearest_shift(hashes.size()); i < 20; i++) {
bool success = true;
for (int s = 0; s < 10000; s++) {
Set<uint32_t> existing;
success = true;
for (int j = 0; j < hashes.size(); j++) {
uint32_t eh = ihash2(ihash3(hashes[j] + ihash(s) + s)) & ((1 << i) - 1);
if (existing.has(eh)) {
success = false;
break;
}
existing.insert(eh);
}
if (success) {
print_line("success at " + itos(i) + "/" + itos(nearest_shift(hashes.size())) + " shift " + itos(s));
break;
}
}
if (success)
break;
}
print_line("DONE");
return NULL;
}
{
//print_line("NUM: "+itos(237641278346127));
print_line("NUM: " + itos(-128));
return NULL;
}
{
Vector3 v(1, 2, 3);
v.normalize();
float a = 0.3;
//Quat q(v,a);
Basis m(v, a);
Vector3 v2(7, 3, 1);
v2.normalize();
float a2 = 0.8;
//Quat q(v,a);
Basis m2(v2, a2);
Quat q = m;
Quat q2 = m2;
Basis m3 = m.inverse() * m2;
Quat q3 = (q.inverse() * q2); //.normalized();
print_line(Quat(m3));
print_line(q3);
print_line("before v: " + v + " a: " + rtos(a));
q.get_axis_and_angle(v, a);
print_line("after v: " + v + " a: " + rtos(a));
}
return NULL;
String ret;
List<String> args;
args.push_back("-l");
Error err = OS::get_singleton()->execute("/bin/ls", args, true, NULL, &ret);
print_line("error: " + itos(err));
print_line(ret);
return NULL;
Basis m3;
m3.rotate(Vector3(1, 0, 0), 0.2);
m3.rotate(Vector3(0, 1, 0), 1.77);
m3.rotate(Vector3(0, 0, 1), 212);
Basis m32;
m32.set_euler(m3.get_euler());
print_line("ELEULEEEEEEEEEEEEEEEEEER: " + m3.get_euler() + " vs " + m32.get_euler());
return NULL;
{
Dictionary d;
d["momo"] = 1;
Dictionary b = d;
b["44"] = 4;
}
return NULL;
print_line("inters: " + rtos(Geometry::segment_intersects_circle(Vector2(-5, 0), Vector2(-2, 0), Vector2(), 1.0)));
print_line("cross: " + Vector3(1, 2, 3).cross(Vector3(4, 5, 7)));
print_line("dot: " + rtos(Vector3(1, 2, 3).dot(Vector3(4, 5, 7))));
print_line("abs: " + Vector3(-1, 2, -3).abs());
print_line("distance_to: " + rtos(Vector3(1, 2, 3).distance_to(Vector3(4, 5, 7))));
print_line("distance_squared_to: " + rtos(Vector3(1, 2, 3).distance_squared_to(Vector3(4, 5, 7))));
print_line("plus: " + (Vector3(1, 2, 3) + Vector3(Vector3(4, 5, 7))));
print_line("minus: " + (Vector3(1, 2, 3) - Vector3(Vector3(4, 5, 7))));
print_line("mul: " + (Vector3(1, 2, 3) * Vector3(Vector3(4, 5, 7))));
print_line("div: " + (Vector3(1, 2, 3) / Vector3(Vector3(4, 5, 7))));
print_line("mul scalar: " + (Vector3(1, 2, 3) * 2));
print_line("premul scalar: " + (2 * Vector3(1, 2, 3)));
print_line("div scalar: " + (Vector3(1, 2, 3) / 3.0));
print_line("length: " + rtos(Vector3(1, 2, 3).length()));
print_line("length squared: " + rtos(Vector3(1, 2, 3).length_squared()));
print_line("normalized: " + Vector3(1, 2, 3).normalized());
print_line("inverse: " + Vector3(1, 2, 3).inverse());
{
Vector3 v(4, 5, 7);
v.normalize();
print_line("normalize: " + v);
}
{
Vector3 v(4, 5, 7);
v += Vector3(1, 2, 3);
print_line("+=: " + v);
}
{
Vector3 v(4, 5, 7);
v -= Vector3(1, 2, 3);
print_line("-=: " + v);
}
{
Vector3 v(4, 5, 7);
v *= Vector3(1, 2, 3);
print_line("*=: " + v);
}
{
Vector3 v(4, 5, 7);
v /= Vector3(1, 2, 3);
print_line("/=: " + v);
}
{
Vector3 v(4, 5, 7);
v *= 2.0;
print_line("scalar *=: " + v);
}
{
Vector3 v(4, 5, 7);
v /= 2.0;
print_line("scalar /=: " + v);
}
#if 0
print_line(String("C:\\momo\\.\\popo\\..\\gongo").simplify_path());
print_line(String("res://../popo/..//gongo").simplify_path());
print_line(String("res://..").simplify_path());
PoolVector<uint8_t> a;
PoolVector<uint8_t> b;
a.resize(20);
b=a;
b.resize(30);
a=b;
#endif
#if 0
String za = String::utf8("á");
printf("unicode: %x\n",za[0]);
CharString cs=za.utf8();
for(int i=0;i<cs.size();i++) {
uint32_t v = uint8_t(cs[i]);
printf("%i - %x\n",i,v);
}
return NULL;
print_line(String("C:\\window\\system\\momo").path_to("C:\\window\\momonga"));
print_line(String("res://momo/sampler").path_to("res://pindonga"));
print_line(String("/margarito/terere").path_to("/margarito/pilates"));
print_line(String("/algo").path_to("/algo"));
print_line(String("c:").path_to("c:\\"));
print_line(String("/").path_to("/"));
print_line(itos(sizeof(Variant)));
return NULL;
Vector<StringName> path;
path.push_back("three");
path.push_back("two");
path.push_back("one");
path.push_back("comeon");
path.revert();
NodePath np(path,true);
print_line(np);
return NULL;
bool a=2;
print_line(Variant(a));
Transform2D mat2_1;
mat2_1.rotate(0.5);
Transform2D mat2_2;
mat2_2.translate(Vector2(1,2));
Transform2D mat2_3 = mat2_1 * mat2_2;
mat2_3.affine_invert();
print_line(mat2_3.elements[0]);
print_line(mat2_3.elements[1]);
print_line(mat2_3.elements[2]);
Transform mat3_1;
mat3_1.basis.rotate(Vector3(0,0,1),0.5);
Transform mat3_2;
mat3_2.translate(Vector3(1,2,0));
Transform mat3_3 = mat3_1 * mat3_2;
mat3_3.affine_invert();
print_line(mat3_3.basis.get_axis(0));
print_line(mat3_3.basis.get_axis(1));
print_line(mat3_3.origin);
#endif
return NULL;
}
}
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