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// This file is part of the 64k demo project.
// It serves as the application entry point.
// Orchestrates platform initialization, main loop, and subsystem coordination.
#include "3d/renderer.h"
#include "audio/audio.h"
#include "audio/gen.h"
#include "audio/synth.h"
#include "audio/tracker.h"
#include "generated/assets.h" // Include generated asset header
#include "gpu/gpu.h"
#include "platform.h"
#include "util/math.h"
#include <cmath>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#define SPEC_FRAMES 16
static float* g_spec_buffer_a[SPEC_FRAMES * DCT_SIZE] = {0};
static float* g_spec_buffer_b[SPEC_FRAMES * DCT_SIZE] = {0};
// Global storage for the melody to ensure it persists
// Global storage for the melody to ensure it persists
// std::vector<float> g_melody_data; // Tracker now handles melody generation
// int generate_melody() { ... } // Replaced by tracker
float* generate_tone(float* buffer, float freq) {
if (buffer == nullptr) {
buffer = (float*)calloc(SPEC_FRAMES * DCT_SIZE, sizeof(float));
} else {
memset(buffer, 0, SPEC_FRAMES * DCT_SIZE * sizeof(float));
}
for (int frame = 0; frame < SPEC_FRAMES; ++frame) {
float* spec_frame = buffer + frame * DCT_SIZE;
float amplitude = 1000. * powf(1.0f - (float)frame / SPEC_FRAMES, 2.0f);
int bin = (int)(freq / (32000.0f / 2.0f) * DCT_SIZE);
if (bin > 0 && bin < DCT_SIZE) {
spec_frame[bin] = amplitude;
}
}
return buffer;
}
int main(int argc, char** argv) {
PlatformState platform_state;
bool fullscreen_enabled = false;
float seek_time = 0.0f;
int width = 1280;
int height = 720;
#if !defined(STRIP_ALL)
for (int i = 1; i < argc; ++i) {
if (strcmp(argv[i], "--fullscreen") == 0) {
fullscreen_enabled = true;
} else if (strcmp(argv[i], "--seek") == 0 && i + 1 < argc) {
seek_time = atof(argv[i + 1]);
++i;
} else if (strcmp(argv[i], "--resolution") == 0 && i + 1 < argc) {
const char* res_str = argv[++i];
int w, h;
if (sscanf(res_str, "%dx%d", &w, &h) == 2) {
width = w;
height = h;
}
} else if (strcmp(argv[i], "--debug") == 0) {
Renderer3D::SetDebugEnabled(true);
}
}
#else
(void)argc;
(void)argv;
fullscreen_enabled = true;
#endif /* STRIP_ALL */
platform_state = platform_init(fullscreen_enabled, width, height);
gpu_init(&platform_state);
audio_init();
synth_init();
tracker_init();
// Still keep the dynamic tone for bass (can be integrated into tracker too)
const float* g_spec_buffer_a = generate_tone(nullptr, 110.0f); // A2
const float* g_spec_buffer_b = generate_tone(nullptr, 110.0f);
const Spectrogram bass_spec = {g_spec_buffer_a, g_spec_buffer_b, SPEC_FRAMES};
int bass_id = synth_register_spectrogram(&bass_spec);
// Generate and play melody (replaced by tracker)
// int melody_id = generate_melody();
// synth_trigger_voice(melody_id, 0.6f, 0.0f);
double last_beat_time = 0.0;
int beat_count = 0;
auto update_game_logic = [&](double t) {
if (t - last_beat_time > (60.0f / g_tracker_score.bpm) / 2.0) { // 8th notes
last_beat_time = t; // Sync to t
const int step = beat_count % 16;
/*
// Bass pattern
if (step % 4 == 0) {
float* back_buffer = synth_begin_update(bass_id);
if (back_buffer) {
float bass_freq = (step < 8) ? 110.0f : 164.82f; // A3 then E3
generate_tone(back_buffer, bass_freq);
synth_commit_update(bass_id);
}
synth_trigger_voice(bass_id, 0.9f, 1.2f);
}
*/
++beat_count;
}
tracker_update((float)t);
};
#if !defined(STRIP_ALL)
if (seek_time > 0.0) {
printf("Seeking to %.2f seconds...\n", seek_time);
// Simulate audio/game logic
// We step at ~60hz
const double step = 1.0 / 60.0;
for (double t = 0.0; t < seek_time; t += step) {
update_game_logic(t);
audio_render_silent((float)step);
}
// Simulate Visuals
gpu_simulate_until((float)seek_time);
}
#endif /* !defined(STRIP_ALL) */
// Start real audio
audio_start();
int last_width = platform_state.width;
int last_height = platform_state.height;
while (!platform_should_close(&platform_state)) {
platform_poll(&platform_state);
if (platform_state.width != last_width ||
platform_state.height != last_height) {
last_width = platform_state.width;
last_height = platform_state.height;
gpu_resize(last_width, last_height);
}
double current_time = platform_state.time + seek_time; // Offset logic time
update_game_logic(current_time);
float aspect_ratio = platform_state.aspect_ratio;
// Adjusted multiplier for visuals (preventing constant 1.0 saturation)
float raw_peak = synth_get_output_peak();
float visual_peak = fminf(raw_peak * 8.0f, 1.0f);
// float beat = fmodf((float)current_time * DEMO_BPM / 60.0f, 1.0f); // Use
// tracker BPM
float beat = fmodf((float)current_time * g_tracker_score.bpm / 60.0f, 1.0f);
gpu_draw(visual_peak, aspect_ratio, (float)current_time, beat);
audio_update();
}
audio_shutdown();
gpu_shutdown();
platform_shutdown(&platform_state);
return 0;
}
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