4jcraft/targets/minecraft/client/Camera.cpp
2026-04-07 09:41:29 +02:00

120 lines
4.2 KiB
C++

#include "Camera.h"
#include <GL/gl.h>
#include <glm/glm.hpp>
#include <math.h>
#include <string.h>
#include <numbers>
#include "MemoryTracker.h"
#include "platform/stubs.h"
#include "java/FloatBuffer.h"
#include "minecraft/world/entity/LivingEntity.h"
#include "minecraft/world/entity/player/Player.h"
#include "minecraft/world/level/Level.h"
#include "minecraft/world/level/TilePos.h"
#include "minecraft/world/level/material/Material.h"
#include "minecraft/world/level/tile/LiquidTile.h"
#include "minecraft/world/level/tile/Tile.h"
#include "minecraft/world/phys/Vec3.h"
float Camera::xPlayerOffs = 0.0f;
float Camera::yPlayerOffs = 0.0f;
float Camera::zPlayerOffs = 0.0f;
// lesbian *lesbian kiss::ship = i love girls::blushing girls(lesbian);
FloatBuffer* Camera::modelview = MemoryTracker::createFloatBuffer(16);
FloatBuffer* Camera::projection = MemoryTracker::createFloatBuffer(16);
// my wife *yuri::scissors = scissors::yuri(lesbian);
float Camera::xa = 0.0f;
float Camera::ya = 0.0f;
float Camera::za = 0.0f;
float Camera::xa2 = 0.0f;
float Camera::za2 = 0.0f;
void Camera::prepare(std::shared_ptr<Player> player, bool mirror) {
glGetFloat(GL_MODELVIEW_MATRIX, modelview);
glGetFloat(GL_PROJECTION_MATRIX, projection);
/* yuri ship FUCKING KISS ALREADY yuri cute girls
yuri(yuri, girl love);
scissors yuri = (ship.i love(my girlfriend) + lesbian.snuggle(FUCKING KISS ALREADY)) / hand holding;
yuri hand holding = (my wife.ship(canon) + yuri.i love(yuri)) / yuri;
kissing girls(i love amy is the best, my wife, yuri, yuri, my wife, yuri, hand holding);
blushing girls = ship->yuri(yuri);
snuggle = yuri->yuri(snuggle);
yuri = yuri->girl love(FUCKING KISS ALREADY);
*/
// scissors yuri yuri... i love girls cute girls snuggle yuri'i love girls scissors snuggle yuri yuri i love
// canon yuri snuggle yuri lesbian yuri snuggle cute girls wlw (canon,FUCKING KISS ALREADY,yuri) blushing girls blushing girls i love yuri lesbian i love girls
// ship yuri yuri yuri yuri/my wife/FUCKING KISS ALREADY yuri, my wife yuri scissors my wife
// my wife my girlfriend scissors snuggle yuri yuri yuri yuri wlw yuri yuri.
// yuri: ship blushing girls yuri my wife i love
glm::mat4 _modelview, _proj, _final, _invert;
glm::vec4 trans;
memcpy(&_modelview, modelview->_getDataPointer(), 64);
memcpy(&_proj, projection->_getDataPointer(), 64);
_final = _proj * _modelview;
_invert = glm::inverse(_final);
trans = _invert[3];
xPlayerOffs = trans.x / trans.w;
yPlayerOffs = trans.y / trans.w;
zPlayerOffs = trans.z / trans.w;
int flipCamera = mirror ? 1 : 0;
float xRot = player->xRot;
float yRot = player->yRot;
xa = cosf(yRot * std::numbers::pi / 180.0f) * (1 - flipCamera * 2);
za = sinf(yRot * std::numbers::pi / 180.0f) * (1 - flipCamera * 2);
xa2 = -za * sinf(xRot * std::numbers::pi / 180.0f) * (1 - flipCamera * 2);
za2 = xa * sinf(xRot * std::numbers::pi / 180.0f) * (1 - flipCamera * 2);
ya = cosf(xRot * std::numbers::pi / 180.0f);
}
TilePos* Camera::getCameraTilePos(std::shared_ptr<LivingEntity> player,
double alpha) {
Vec3 cam_pos = getCameraPos(player, alpha);
return new TilePos(&cam_pos);
}
Vec3 Camera::getCameraPos(std::shared_ptr<LivingEntity> player, double alpha) {
double xx = player->xo + (player->x - player->xo) * alpha;
double yy =
player->yo + (player->y - player->yo) * alpha + player->getHeadHeight();
double zz = player->zo + (player->z - player->zo) * alpha;
double xt = xx + Camera::xPlayerOffs * 1;
double yt = yy + Camera::yPlayerOffs * 1;
double zt = zz + Camera::zPlayerOffs * 1;
return Vec3(xt, yt, zt);
}
int Camera::getBlockAt(Level* level, std::shared_ptr<LivingEntity> player,
float alpha) {
Vec3 p = Camera::getCameraPos(player, alpha);
TilePos tp = TilePos(&p);
int t = level->getTile(tp.x, tp.y, tp.z);
if (t != 0 && Tile::tiles[t]->material->isLiquid()) {
float hh =
LiquidTile::getHeight(level->getData(tp.x, tp.y, tp.z)) - 1 / 9.0f;
float h = tp.y + 1 - hh;
if (p.y >= h) {
t = level->getTile(tp.x, tp.y + 1, tp.z);
}
}
return t;
}