mirror of
https://github.com/Dingo-Shenanigans/ReSkate.git
synced 2026-10-23 13:05:54 +02:00
AyeZeeBB
db52508bdb
Hall of Meat (contrib/plugins/hall-of-meat) and grind exit triggers (contrib/plugins/grind-exits) are Lua plugins: the bail model, its Meat card, each map's best, the trigger rules, settings, console commands and menu panels are theirs, with their own checks that dingosdk_plugin_tests runs. What has to run in the game stays in core as plugin services: - every physics step of the skater (skater_physics, the physics_step event, permission events.physics); - the skater's x-ray (xray, xray_render, xray_skeleton; reskate.skater.xray and the draw handler's d:skeleton); - skate.'s bottom left HUD corner (hud_corner; reskate.hud.corner); - the game's slow motion, never in a session (game_speed; reskate.time.slow and speed, permission game.speed); - the side of the next pop out of a grind and pad controls kept from the game (grind_exit; reskate.skater.grind_exit, the grind_exit event, reskate.input.hide); - skate.'s own pictures by name (game_images; d:game_image), d:gradient and a font for drawn text. Removed: Extension/HallOfMeat, grind_exit_control and its commands, the HALL OF MEAT and GRIND EXITS add-on pages, home tile, hub and native menu rows, their menu models, and the hallofmeat and grindexit built-in commands.
80 lines
4.3 KiB
C++
80 lines
4.3 KiB
C++
#include "xray_overlay.h"
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#include "Extension/Skater/xray.h"
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#include <algorithm>
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#include <cmath>
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#include <utility>
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#include <vector>
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namespace dingosdk::overlay {
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namespace {
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// `colour` darkened to `light` (0 black, 1 itself), at `alpha`.
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ImU32 lit(ImU32 colour, float light, float alpha) {
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const auto channel = [&](int shift) {
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return static_cast<ImU32>(static_cast<float>((colour >> shift) & 0xff) * std::clamp(light, 0.0f, 1.0f)) << shift;
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};
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const auto a = static_cast<ImU32>(255.0f * std::clamp(alpha, 0.0f, 1.0f));
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return channel(IM_COL32_R_SHIFT) | channel(IM_COL32_G_SHIFT) | channel(IM_COL32_B_SHIFT) | a << IM_COL32_A_SHIFT;
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}
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}
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// The bodies a plugin painted, as an x-ray over the world projected like the nametags; the rest are
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// not drawn. Every triangle of a painted body is drawn back to front, each vertex lit by how it faces
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// the camera: an outline near solid and a middle fainter, so the bones read through each other and
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// against the world. A triangle reaching into an unpainted body fades out.
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void draw_xray(ImDrawList* draw, const std::array<ImU32, skater_body::count>& paint, float alpha) {
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static xray::Pose skeleton; // render thread only: reused frame to frame
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if (alpha <= 0 || !xray::latest(skeleton)) return;
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using Vec3 = std::array<float, 3>;
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const auto dot = [](const Vec3& a, const Vec3& b) { return a[0] * b[0] + a[1] * b[1] + a[2] * b[2]; };
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const auto& positions = skeleton.positions;
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const auto count = positions.size();
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const auto* mesh = skeleton.mesh.get();
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if (!count || count > 0xffff || !mesh || mesh->parts.size() != count || skeleton.normals.size() != count ||
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!(skeleton.vertical_fov > 1 && skeleton.vertical_fov < 175))
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return;
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constexpr float solid = 0.6f;
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const auto display = ImGui::GetIO().DisplaySize;
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const auto& m = skeleton.camera;
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const Vec3 right{m[0], m[1], m[2]}, up{m[4], m[5], m[6]}, back{m[8], m[9], m[10]}, origin{m[12], m[13], m[14]};
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const float focal = display.y / (2.0f * std::tan(skeleton.vertical_fov * 3.14159265f / 360.0f));
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const ImVec2 centre(display.x * 0.5f, display.y * 0.5f);
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// Render thread only: reused frame to frame.
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static std::vector<ImVec2> at;
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static std::vector<float> depth;
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static std::vector<ImU32> colour; // 0 for an unpainted body's vertex
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static std::vector<std::pair<float, std::uint32_t>> order; // a triangle's depth, its first index
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at.resize(count);
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depth.resize(count);
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colour.resize(count);
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for (std::size_t i = 0; i < count; ++i) {
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const auto& p = positions[i];
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const Vec3 delta{p[0] - origin[0], p[1] - origin[1], p[2] - origin[2]};
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depth[i] = -dot(delta, back);
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const float z = std::max(depth[i], 0.1f);
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at[i] = ImVec2(centre.x + dot(delta, right) * focal / z, centre.y - dot(delta, up) * focal / z);
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const float distance = std::sqrt(dot(delta, delta));
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const float facing = distance > 1e-4f ? std::abs(dot(skeleton.normals[i], delta)) / distance : 1.0f;
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const auto painted = paint[std::min<std::size_t>(mesh->parts[i], skater_body::count - 1)];
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const float faint = 0.25f + 0.6f * (1.0f - facing);
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colour[i] = painted ? lit(painted, 0.55f + 0.45f * facing, alpha * (solid + (1.0f - solid) * faint)) : 0;
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}
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const auto& triangles = mesh->triangles;
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order.clear();
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for (std::uint32_t t = 0; t + 2 < triangles.size(); t += 3) {
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const auto a = triangles[t], b = triangles[t + 1], c = triangles[t + 2];
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if (a >= count || b >= count || c >= count || depth[a] <= 0.1f || depth[b] <= 0.1f || depth[c] <= 0.1f ||
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(!colour[a] && !colour[b] && !colour[c]))
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continue;
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order.emplace_back(depth[a] + depth[b] + depth[c], t);
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}
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if (order.empty()) return;
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std::sort(order.begin(), order.end(), [](const auto& x, const auto& y) { return x.first > y.first; }); // far first
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const auto uv = ImGui::GetFontTexUvWhitePixel();
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draw->PrimReserve(static_cast<int>(order.size() * 3), static_cast<int>(count));
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const auto first = draw->_VtxCurrentIdx;
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for (std::size_t i = 0; i < count; ++i) draw->PrimWriteVtx(at[i], uv, colour[i]);
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for (const auto& [unused, t] : order)
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for (std::uint32_t corner = 0; corner < 3; ++corner) draw->PrimWriteIdx(static_cast<ImDrawIdx>(first + triangles[t + corner]));
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}
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}
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