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/*******************************************************************************************
*
* raylib [models] example - Waving cubes
*
* Example originally created with raylib 2.5, last time updated with raylib 3.7
*
* Example contributed by Codecat (@codecat) 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) 2019-2024 Codecat (@codecat) and Ramon Santamaria (@raysan5)
*
********************************************************************************************/
#include "raylib.h"
#include <math.h> // Required for: sinf()
//------------------------------------------------------------------------------------
// Program main entry point
//------------------------------------------------------------------------------------
int main()
{
// Initialization
//--------------------------------------------------------------------------------------
const int screenWidth = 800;
const int screenHeight = 450;
InitWindow(screenWidth, screenHeight, "raylib [models] example - waving cubes");
// Initialize the camera
Camera3D camera = { 0 };
camera.position = (Vector3){ 30.0f, 20.0f, 30.0f }; // Camera position
camera.target = (Vector3){ 0.0f, 0.0f, 0.0f }; // Camera looking at point
camera.up = (Vector3){ 0.0f, 1.0f, 0.0f }; // Camera up vector (rotation towards target)
camera.fovy = 70.0f; // Camera field-of-view Y
camera.projection = CAMERA_PERSPECTIVE; // Camera projection type
// Specify the amount of blocks in each direction
const int numBlocks = 15;
SetTargetFPS(60);
//--------------------------------------------------------------------------------------
// Main game loop
while (!WindowShouldClose()) // Detect window close button or ESC key
{
// Update
//----------------------------------------------------------------------------------
double time = GetTime();
// Calculate time scale for cube position and size
float scale = (2.0f + (float)sin(time))*0.7f;
// Move camera around the scene
double cameraTime = time*0.3;
camera.position.x = (float)cos(cameraTime)*40.0f;
camera.position.z = (float)sin(cameraTime)*40.0f;
//----------------------------------------------------------------------------------
// Draw
//----------------------------------------------------------------------------------
BeginDrawing();
ClearBackground(RAYWHITE);
BeginMode3D(camera);
DrawGrid(10, 5.0f);
for (int x = 0; x < numBlocks; x++)
{
for (int y = 0; y < numBlocks; y++)
{
for (int z = 0; z < numBlocks; z++)
{
// Scale of the blocks depends on x/y/z positions
float blockScale = (x + y + z)/30.0f;
// Scatter makes the waving effect by adding blockScale over time
float scatter = sinf(blockScale*20.0f + (float)(time*4.0f));
// Calculate the cube position
Vector3 cubePos = {
(float)(x - numBlocks/2)*(scale*3.0f) + scatter,
(float)(y - numBlocks/2)*(scale*2.0f) + scatter,
(float)(z - numBlocks/2)*(scale*3.0f) + scatter
};
// Pick a color with a hue depending on cube position for the rainbow color effect
// NOTE: This function is quite costly to be done per cube and frame,
// pre-catching the results into a separate array could improve performance
Color cubeColor = ColorFromHSV((float)(((x + y + z)*18)%360), 0.75f, 0.9f);
// Calculate cube size
float cubeSize = (2.4f - scale)*blockScale;
// And finally, draw the cube!
DrawCube(cubePos, cubeSize, cubeSize, cubeSize, cubeColor);
}
}
}
EndMode3D();
DrawFPS(10, 10);
EndDrawing();
//----------------------------------------------------------------------------------
}
// De-Initialization
//--------------------------------------------------------------------------------------
CloseWindow(); // Close window and OpenGL context
//--------------------------------------------------------------------------------------
return 0;
}
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