YimMenu/src/views/esp/view_esp.cpp

#include "view_esp.hpp"
#include "gta_util.hpp"
#include "pointers.hpp"
#include "services/players/player_service.hpp"
#include "util/math.hpp"
#include "util/misc.hpp"

namespace big
{
	static ImColor death_bg = ImColor(0.117f, 0.113f, 0.172f, .75f);
	static ImColor armor_blue_bg = ImColor(0.36f, 0.71f, 0.89f, .75f);
	static ImColor armor_blue = ImColor(0.36f, 0.71f, 0.89f, 1.f);
	static ImColor health_green_bg = ImColor(0.29f, 0.69f, 0.34f, .75f);
	static ImColor health_green = ImColor(0.29f, 0.69f, 0.34f, 1.f);
	static ImColor health_yellow_bg = ImColor(0.69f, 0.49f, 0.29f, .75f);
	static ImColor health_yellow = ImColor(0.69f, 0.49f, 0.29f, 1.f);
	static ImColor health_red_bg = ImColor(0.69f, 0.29f, 0.29f, .75f);
	static ImColor health_red = ImColor(0.69f, 0.29f, 0.29f, 1.f);

	void esp::draw_player(const player_ptr& plyr, ImDrawList* const draw_list) {
		if (!plyr->is_valid() ||
			!plyr->get_ped() ||
			!plyr->get_ped()->m_navigation)
			return;
		if (g.esp.hide_self && plyr->is_valid() && plyr->id() == g_player_service->get_self()->id())
			return;

		auto& player_pos = *plyr->get_ped()->m_navigation->get_position();

		float screen_x, screen_y;

		const float distance = math::calculate_distance_from_game_cam(player_pos);
		const float multplr = distance > g.esp.global_render_distance[1] ? -1.f : 6.17757f / distance;

		if (multplr == -1.f || g.esp.global_render_distance[0] > distance) return;

		uint32_t ped_damage_bits = plyr->get_ped()->m_damage_bits;

		if (g_pointers->m_get_screen_coords_for_world_coords(player_pos.data, &screen_x, &screen_y))
		{
			const auto esp_x = (float)*g_pointers->m_resolution_x * screen_x;
			const auto esp_y = (float)*g_pointers->m_resolution_y * screen_y;

			std::string name_str;
			ImVec2 name_pos = { esp_x - (62.5f * multplr), esp_y - (175.f * multplr) - 20.f };
			ImU32 esp_color = g.esp.default_color;

			if (plyr->is_friend())
			{
				esp_color = g.esp.friend_color;
			}
			else if (g.esp.change_esp_color_from_dist) {
				if (distance <= g.esp.distance_threshold[0])
					esp_color = g.esp.enemy_color;
				else if (distance >= g.esp.distance_threshold[0] && distance < g.esp.distance_threshold[1])
					esp_color = g.esp.enemy_near_color;
			}

			const auto armor_perc = plyr->get_ped()->m_armor / 50.f;
			const auto health_perc = plyr->get_ped()->m_health / (plyr->get_ped()->m_maxhealth + 0.001f);

			if (distance < g.esp.tracer_render_distance[1] && distance > g.esp.tracer_render_distance[0] && g.esp.tracer)
				draw_list->AddLine({ (float)*g_pointers->m_resolution_x * g.esp.tracer_draw_position[0], (float)*g_pointers->m_resolution_y * g.esp.tracer_draw_position[1] }, { esp_x, esp_y }, esp_color);

			if (distance < g.esp.box_render_distance[1] && distance > g.esp.box_render_distance[0] && g.esp.box)
				draw_list->AddRect({ esp_x - (62.5f * multplr), esp_y - (175.f * multplr) }, { esp_x - (62.5f * multplr) + (125.f * multplr), esp_y - (175.f * multplr) + (350.f * multplr) }, esp_color);

			if (g.esp.name)
				name_str = plyr->get_name();

			if (g.esp.distance)
			{
				if (g.esp.name)
					name_str += " | ";
				name_str += std::to_string((int)distance);
				name_str += "m";
			}

			draw_list->AddText(name_pos, esp_color, name_str.c_str());

			if (g.esp.god) {
				std::string mode_str = "";

				if (ped_damage_bits & (uint32_t)eEntityProofs::GOD)
				{
					mode_str = "GOD";
				}
				else
				{
					if (ped_damage_bits & (uint32_t)eEntityProofs::BULLET)
					{
						mode_str += "BULLET ";
					}
					if (ped_damage_bits & (uint32_t)eEntityProofs::EXPLOSION)
					{
						mode_str += "EXPLOSION ";
					}
				}

				if (!mode_str.empty())
				{
					draw_list->AddText({ esp_x - (62.5f * multplr), esp_y - (175.f * multplr) - 40.f }, ImColor(1.f, 0.f, 0.f, 1.f), mode_str.c_str());
				}
			}

			if (!(ped_damage_bits & (uint32_t)eEntityProofs::GOD))
			{
				if (g.esp.health) {
					if (g.esp.scale_health_from_dist) {
						draw_list->AddLine({ esp_x - (62.5f * multplr), esp_y + (175.f * multplr) + 5.f }, { esp_x - (62.5f * multplr) + (125.f * multplr), esp_y + (175.f * multplr) + 5.f }, health_perc == 0.f ? death_bg : health_perc < 0.25f ? health_red_bg : health_perc < 0.65f ? health_yellow_bg : health_green_bg, 4);
						draw_list->AddLine({ esp_x - (62.5f * multplr), esp_y + (175.f * multplr) + 5.f }, { esp_x - (62.5f * multplr) + (125.f * multplr) * health_perc, esp_y + (175.f * multplr) + 5.f }, health_perc < 0.25f ? health_red : health_perc < 0.65f ? health_yellow : health_green, 4);
					}
					else {
						draw_list->AddLine({ esp_x - (62.5f * multplr), esp_y + (175.f * multplr) + 5.f }, { esp_x - (62.5f * multplr) + (100.f), esp_y + (175.f * multplr) + 5.f }, health_perc == 0.f ? death_bg : health_perc < 0.25f ? health_red_bg : health_perc < 0.65f ? health_yellow_bg : health_green_bg, 4);
						draw_list->AddLine({ esp_x - (62.5f * multplr), esp_y + (175.f * multplr) + 5.f }, { esp_x - (62.5f * multplr) + (100.f * health_perc), esp_y + (175.f * multplr) + 5.f }, health_perc < 0.25f ? health_red : health_perc < 0.65f ? health_yellow : health_green, 4);
					}
				}
				if (g.esp.armor && plyr->get_ped()->m_armor > 0) {
					float offset = 5.f;
					offset = g.esp.health ? 10.f : 5.f;
					if (g.esp.scale_armor_from_dist) {
						draw_list->AddLine({ esp_x - (62.5f * multplr), esp_y + (175.f * multplr) + offset }, { esp_x - (62.5f * multplr) + (125.f * multplr), esp_y + (175.f * multplr) + offset }, armor_blue_bg, 4);
						draw_list->AddLine({ esp_x - (62.5f * multplr), esp_y + (175.f * multplr) + offset }, { esp_x - (62.5f * multplr) + (125.f * multplr) * armor_perc, esp_y + (175.f * multplr) + offset }, armor_blue, 4);
					}
					else {
						draw_list->AddLine({ esp_x - (62.5f * multplr), esp_y + (175.f * multplr) + offset }, { esp_x - (62.5f * multplr) + (100.f), esp_y + (175.f * multplr) + offset }, armor_blue_bg, 4);
						draw_list->AddLine({ esp_x - (62.5f * multplr), esp_y + (175.f * multplr) + offset }, { esp_x - (62.5f * multplr) + (100.f * armor_perc), esp_y + (175.f * multplr) + offset }, armor_blue, 4);
					}
				}
			}
		}
	}

	void esp::draw() {
		if (!g.esp.enabled) return;

		if (const auto draw_list = ImGui::GetBackgroundDrawList(); draw_list)
		{
			draw_player(g_player_service->get_self(), draw_list);

			for (const auto& [_, plyr] : g_player_service->players())
			{
				draw_player(plyr, draw_list);
			}
		}
	}
}