esp.cpp

#include "esp.h"
int screenheight = GetSystemMetrics(SM_CYSCREEN);
int screenwidth = GetSystemMetrics(SM_CXSCREEN);


bool ESP::IsTeamGame()
{
    if ((*gameMode == 0 || *gameMode == 4 || *gameMode == 5 || *gameMode == 7 || *gameMode == 11 || *gameMode == 13 ||
        *gameMode == 14 || *gameMode == 16 || *gameMode == 17 || *gameMode == 20 || *gameMode == 21))
        return true;
    else return false;
}

bool ESP::IsEnemy(ent* e)
{
    if (localPlayer->team == e->team)
        return false;
    else return true;
}

bool ESP::IsValidEnt(ent* ent)
{
    if (ent)
    {
        if (ent->vTable == 0x4E4A98 || ent->vTable == 0x4E4AC0)
            return true;
    }
    return false;
}

void ESP::DrawESPBox(ent* e, vec3 screen, GL::Font& font)
{
    const GLubyte* color = nullptr;

    if (IsTeamGame() && !IsEnemy(e))
        color = rgb::green;
    else color = rgb::red;

    float dist = localPlayer->pos.Distance(e->pos);

    float scale = (GAME_UNIT_MAGIC / dist) * (viewport[2] / VIRTUAL_SCREEN_WIDTH);
    float x = screen.x - scale;
    float y = screen.y - scale * PLAYER_ASPECT_RATIO;
    float width = scale * 2;
    float height = scale * PLAYER_ASPECT_RATIO * 2;

    GL::DrawOutline(x, y, width, height, 2.0f, color);

    float textX = font.centerText(x, width, strlen(e->name) * ESP_FONT_WIDTH);
    float textY = y - ESP_FONT_HEIGHT / 2;
    font.Print(textX, textY, color, "%s", e->name);
}

void ESP::Drawline(ent* e, vec3 screen)
{
    const GLubyte* color = nullptr; // color

    if (IsTeamGame() && !IsEnemy(e)) // team colors and enemy color
        color = rgb::green;
    else color = rgb::red;

    float dist = localPlayer->pos.Distance(e->pos); // gets the distance from us to the entity

    float x1 = screen.x;
    float y1 = screen.y;
    float x2 = 512; // screen width line x postion 
    float y2 = screenheight / 2.0f; // lin y position

    GL::DrawLine(x1, y1, x2, y2, color);
}

void ESP::Draw(GL::Font& font)
{
    glGetIntegerv(GL_VIEWPORT, viewport);

    for (int i = 0; i < (*numOfPlayers); i++)
    {

        if (entlist && entlist->ents && IsValidEnt(entlist->ents[i]))
        {
            ent* e = entlist->ents[i];
            vec3 center = e->head;
            center.z = center.z - EYE_HEIGHT + PLAYER_HEIGHT / 2;
            vec3 screenCoords;

            if (WorldToScreen(center, screenCoords, matrix, viewport[2], viewport[3]))
            {
                DrawESPBox(e, screenCoords, font);
            }
        }
    }
}

void ESP::DrawL(GL::Font& font)
{
    glGetIntegerv(GL_VIEWPORT, viewport);

    for (int i = 0; i < (*numOfPlayers); i++)
    {

        if (entlist && entlist->ents && IsValidEnt(entlist->ents[i]))
        {
            ent* e = entlist->ents[i];
            vec3 center = e->head;
            center.z = center.z - EYE_HEIGHT; // where the line goes
            vec3 screenCoords;

            if (WorldToScreen(center, screenCoords, matrix, viewport[2], viewport[3]))
            {
                Drawline(e, screenCoords);
            }
        }
    }
}