Files
raylib/examples/shapes/shapes_clock_of_clocks.c
2025-10-15 19:59:28 +02:00

227 lines
9.8 KiB
C

/*******************************************************************************************
*
* raylib [shapes] example - clock of clocks
*
* Example complexity rating: [★★☆☆] 2/4
*
* Example originally created with raylib 5.5, last time updated with raylib 5.6-dev
*
* Example contributed by JP Mortiboys (@themushroompirates) and reviewed by Ramon Santamaria (@raysan5)
*
* Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,
* BSD-like license that allows static linking with closed source software
*
* Copyright (c) 2025 JP Mortiboys (@themushroompirates)
*
********************************************************************************************/
#include "raylib.h"
#include "raymath.h" // Required for: Lerp()
#include <time.h> // Required for: time(), localtime()
//------------------------------------------------------------------------------------
// Program main entry point
//------------------------------------------------------------------------------------
int main(void)
{
// Initialization
//--------------------------------------------------------------------------------------
const int screenWidth = 800;
const int screenHeight = 450;
SetConfigFlags(FLAG_MSAA_4X_HINT);
InitWindow(screenWidth, screenHeight, "raylib [shapes] example - clock of clocks");
const Color bgColor = ColorLerp(DARKBLUE, BLACK, 0.75f);
const Color handsColor = ColorLerp(YELLOW, RAYWHITE, .25f);
const float clockFaceSize = 24;
const float clockFaceSpacing = 8.0f;
const float sectionSpacing = 16.0f;
const Vector2 TL = (Vector2){ 0.0f, 90.0f }; // Top-left corner
const Vector2 TR = (Vector2){ 90.0f, 180.0f }; // Top-right corner
const Vector2 BR = (Vector2){ 180.0f, 270.0f }; // Bottom-right corner
const Vector2 BL = (Vector2){ 0.0f, 270.0f }; // Bottom-left corner
const Vector2 HH = (Vector2){ 0.0f, 180.0f }; // Horizontal line
const Vector2 VV = (Vector2){ 90.0f, 270.0f }; // Vertical line
const Vector2 ZZ = (Vector2){ 135.0f, 135.0f }; // Not relevant
const Vector2 digitAngles[10][24] = {
/* 0 */ { TL,HH,HH,TR, /* */ VV,TL,TR,VV,/* */ VV,VV,VV,VV,/* */ VV,VV,VV,VV,/* */ VV,BL,BR,VV,/* */ BL,HH,HH,BR },
/* 1 */ { TL,HH,TR,ZZ, /* */ BL,TR,VV,ZZ,/* */ ZZ,VV,VV,ZZ,/* */ ZZ,VV,VV,ZZ,/* */ TL,BR,BL,TR,/* */ BL,HH,HH,BR },
/* 2 */ { TL,HH,HH,TR, /* */ BL,HH,TR,VV,/* */ TL,HH,BR,VV,/* */ VV,TL,HH,BR,/* */ VV,BL,HH,TR,/* */ BL,HH,HH,BR },
/* 3 */ { TL,HH,HH,TR, /* */ BL,HH,TR,VV,/* */ TL,HH,BR,VV,/* */ BL,HH,TR,VV,/* */ TL,HH,BR,VV,/* */ BL,HH,HH,BR },
/* 4 */ { TL,TR,TL,TR, /* */ VV,VV,VV,VV,/* */ VV,BL,BR,VV,/* */ BL,HH,TR,VV,/* */ ZZ,ZZ,VV,VV,/* */ ZZ,ZZ,BL,BR },
/* 5 */ { TL,HH,HH,TR, /* */ VV,TL,HH,BR,/* */ VV,BL,HH,TR,/* */ BL,HH,TR,VV,/* */ TL,HH,BR,VV,/* */ BL,HH,HH,BR },
/* 6 */ { TL,HH,HH,TR, /* */ VV,TL,HH,BR,/* */ VV,BL,HH,TR,/* */ VV,TL,TR,VV,/* */ VV,BL,BR,VV,/* */ BL,HH,HH,BR },
/* 7 */ { TL,HH,HH,TR, /* */ BL,HH,TR,VV,/* */ ZZ,ZZ,VV,VV,/* */ ZZ,ZZ,VV,VV,/* */ ZZ,ZZ,VV,VV,/* */ ZZ,ZZ,BL,BR },
/* 8 */ { TL,HH,HH,TR, /* */ VV,TL,TR,VV,/* */ VV,BL,BR,VV,/* */ VV,TL,TR,VV,/* */ VV,BL,BR,VV,/* */ BL,HH,HH,BR },
/* 9 */ { TL,HH,HH,TR, /* */ VV,TL,TR,VV,/* */ VV,BL,BR,VV,/* */ BL,HH,TR,VV,/* */ TL,HH,BR,VV,/* */ BL,HH,HH,BR },
};
// Time for the hands to move to the new position (in seconds); this must be <1s
const float handsMoveDuration = .5f;
// We store the previous seconds value so we can see if the time has changed
int prevSeconds = -1;
// This represents the real position where the hands are right now
Vector2 currentAngles[6][24] = { 0 };
// This is the position where the hands were moving from
Vector2 srcAngles[6][24] = { 0 };
// This is the position where the hands are moving to
Vector2 dstAngles[6][24] = { 0 };
// Current animation timer
float handsMoveTimer = 0.0f;
// 12 or 24 hour mode
int hourMode = 24;
SetTargetFPS(60); // Set our game to run at 60 frames-per-second
//--------------------------------------------------------------------------------------
// Main game loop
while (!WindowShouldClose()) // Detect window close button or ESC key
{
// Update
//----------------------------------------------------------------------------------
// Get the current time
time_t rawtime;
struct tm *timeinfo;
time(&rawtime);
timeinfo = localtime(&rawtime);
if (timeinfo->tm_sec != prevSeconds) {
// The time has changed, so we need to move the hands to the new positions
prevSeconds = timeinfo->tm_sec;
// Format the current time so we can access the individual digits
const char *clockDigits = TextFormat("%02d%02d%02d", timeinfo->tm_hour % hourMode, timeinfo->tm_min, timeinfo->tm_sec);
// Fetch where we want all the hands to be
for (int digit = 0; digit < 6; digit++) {
for (int cell = 0; cell < 24; cell++) {
srcAngles[digit][cell] = currentAngles[digit][cell];
dstAngles[digit][cell] = digitAngles[ clockDigits[digit] - '0' ][cell];
// Quick exception for 12h mode
if (digit == 0 && hourMode == 12 && clockDigits[0] == '0') {
dstAngles[digit][cell] = ZZ;
}
if (srcAngles[digit][cell].x > dstAngles[digit][cell].x) {
srcAngles[digit][cell].x -= 360.0f;
}
if (srcAngles[digit][cell].y > dstAngles[digit][cell].y) {
srcAngles[digit][cell].y -= 360.0f;
}
}
}
// Reset the timer
handsMoveTimer = -GetFrameTime();
}
// Now let's animate all the hands if we need to
if (handsMoveTimer < handsMoveDuration) {
// Increase the timer but don't go above the maximum
handsMoveTimer = Clamp(handsMoveTimer + GetFrameTime(), 0, handsMoveDuration);
// Calculate the % completion of the animation
float t = handsMoveTimer / handsMoveDuration;
// A little cheeky smoothstep
t = t * t * (3.0f - 2.0f * t);
for (int digit = 0; digit < 6; digit++) {
for (int cell = 0; cell < 24; cell++) {
currentAngles[digit][cell].x = Lerp(srcAngles[digit][cell].x, dstAngles[digit][cell].x, t);
currentAngles[digit][cell].y = Lerp(srcAngles[digit][cell].y, dstAngles[digit][cell].y, t);
}
}
if (handsMoveTimer == handsMoveDuration) {
// The animation has now finished
}
}
// Handle input
// Toggle between 12 and 24 hour mode with space
if (IsKeyPressed(KEY_SPACE)) {
hourMode = 36 - hourMode;
}
//----------------------------------------------------------------------------------
// Draw
//----------------------------------------------------------------------------------
BeginDrawing();
ClearBackground(bgColor);
DrawText(TextFormat("%d-h mode, space to change", hourMode), 10, 30, 20, RAYWHITE);
float xOffset = 4.0f;
for (int digit = 0; digit < 6; digit++) {
for (int row = 0; row < 6; row++) {
for (int col = 0; col < 4; col++) {
Vector2 centre = (Vector2){
xOffset + col*(clockFaceSize+clockFaceSpacing) + clockFaceSize * .5f,
100 + row*(clockFaceSize+clockFaceSpacing) + clockFaceSize * .5f
};
DrawRing(centre, clockFaceSize * 0.5f - 2.0f, clockFaceSize * 0.5f, 0, 360, 24, DARKGRAY);
// Big hand
DrawRectanglePro(
(Rectangle){centre.x, centre.y, clockFaceSize*.5f+4.0f, 4.0f},
(Vector2){ 2.0f, 2.0f },
currentAngles[digit][row*4+col].x,
handsColor
);
// Little hand
DrawRectanglePro(
(Rectangle){centre.x, centre.y, clockFaceSize*.5f+2.0f, 4.0f},
(Vector2){ 2.0f, 2.0f },
currentAngles[digit][row*4+col].y,
handsColor
);
}
}
xOffset += (clockFaceSize+clockFaceSpacing) * 4;
if (digit % 2 == 1) {
DrawRing((Vector2){xOffset + 4.0f, 160.0f}, 6.0f, 8.0f, 0.0f, 360.0f, 24, handsColor);
DrawRing((Vector2){xOffset + 4.0f, 225.0f}, 6.0f, 8.0f, 0.0f, 360.0f, 24, handsColor);
xOffset += sectionSpacing;
}
}
DrawFPS(10, 10);
EndDrawing();
//----------------------------------------------------------------------------------
}
// De-Initialization
//--------------------------------------------------------------------------------------
CloseWindow(); // Close window and OpenGL context
//--------------------------------------------------------------------------------------
return 0;
}