122 lines
3.6 KiB
C++
122 lines
3.6 KiB
C++
#include <stdio.h>
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#include <string.h>
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#include "directxmath/directxmath.h"
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#include "font.h"
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#include "view.h"
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extern font::font * terminus_fonts;
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extern unsigned int empty_vertex_array_object;
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extern unsigned int quad_index_buffer;
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extern float current_time;
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extern float last_frame_time;
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// depends on:
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// - font::load
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// - load_quad_program
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// - load_quad_index_buffer
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// - empty_vertex_array_object
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extern float mouse_position[3];
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extern float mouse_block[3];
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namespace hud {
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template <typename T, typename... Args>
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void labeled_value(char * const buf, char const * const label, char const * const format, Args... args)
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{
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const int label_length = strlen(label);
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memcpy(buf, label, label_length);
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int len = snprintf(&buf[label_length], 511 - label_length, format, args...);
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buf[label_length + len] = 0;
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}
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inline static float draw_vector(font::font const& ter_best, char * const buf, float y, char const * const label, XMVECTOR vec)
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{
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labeled_value<float>(buf, label, ": %5.2f %5.2f %5.2f", XMVectorGetX(vec), XMVectorGetY(vec), XMVectorGetZ(vec));
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font::draw_string(ter_best, buf, 10, y);
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y += ter_best.desc->glyph_height;
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return y;
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}
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static int average_init = 0;
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static int average_ix = 0;
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static float rolling_sum = 0;
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static float averages[16] = {};
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const int frame_warmup = 10;
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static float update_average(float value)
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{
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if (average_init < frame_warmup) {
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average_init += 1;
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return 0.0f;
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}
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if (average_init == frame_warmup) {
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assert(average_ix == 0);
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rolling_sum = value * 16.0f;
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for (int i = 0; i < 16; i++) {
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averages[i] = value;
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}
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average_init += 1;
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} else {
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rolling_sum -= averages[average_ix];
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rolling_sum += value;
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averages[average_ix] = value;
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average_ix = (average_ix + 1) % 16;
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}
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return rolling_sum * (1.0f / 16.0f);
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}
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void draw()
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{
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char buf[512];
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float y = 10.0f;
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int font_ix = font::best_font(font::terminus, font::terminus_length);
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font::font const& ter_best = terminus_fonts[font_ix];
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font::draw_start(ter_best, empty_vertex_array_object, quad_index_buffer);
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labeled_value<float>(buf, "fov: ", "%.3f", view::state.fov);
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font::draw_string(ter_best, buf, 10, y);
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y += ter_best.desc->glyph_height;
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labeled_value<int>(buf, "font_height: ", "%d", ter_best.desc->glyph_height);
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font::draw_string(ter_best, buf, 10, y);
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y += ter_best.desc->glyph_height;
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/*
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labeled_value<float>(buf, "lighting.quadratic: ", "%.2f", lighting.quadratic);
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font::draw_string(ter_best, buf, 10, y);
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y += ter_best.desc->glyph_height;
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labeled_value<float>(buf, "lighting.linear: ", "%.2f", lighting.linear);
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font::draw_string(ter_best, buf, 10, y);
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y += ter_best.desc->glyph_height;
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*/
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y = draw_vector(ter_best, buf, y, "eye", view::state.eye);
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y = draw_vector(ter_best, buf, y, "at", view::state.at);
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y = draw_vector(ter_best, buf, y, "forward", view::state.forward);
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labeled_value<float>(buf, "pitch: ", "%.4f", view::state.pitch);
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font::draw_string(ter_best, buf, 10, y);
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y += ter_best.desc->glyph_height;
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labeled_value<float>(buf, "frame_rate_avg: ", "%.2f", 1.0f / update_average(current_time - last_frame_time));
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font::draw_string(ter_best, buf, 10, y);
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y += ter_best.desc->glyph_height;
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font::draw_string(ter_best, "mouse:", 10, y);
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y += ter_best.desc->glyph_height;
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y = draw_vector(ter_best, buf, y, " position", XMLoadFloat3((XMFLOAT3*)mouse_position));
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y = draw_vector(ter_best, buf, y, " block", XMLoadFloat3((XMFLOAT3*)mouse_block));
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}
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}
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