quartznet/raylib-cs
2
0
Fork 0
mirror of https://github.com/raylib-cs/raylib-cs synced 2025-07-02 19:13:43 -04:00
Code Activity

Update/merge examples back into main repo (#192)

Browse Source
This commit is contained in:
Chris Dill
2023-08-25 08:08:32 +01:00
committed by GitHub
parent fa682b00ac
commit bcdf8cec5b
320 changed files with 57965 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

196
Examples/Models/SolarSystem.cs Normal file
View File

@ -0,0 +1,196 @@
/*******************************************************************************************
*
* raylib [models] example - rlgl module usage with push/pop matrix transformations
*
* This example uses [rlgl] module funtionality (pseudo-OpenGL 1.1 style coding)
*
* This example has been created using raylib 2.5 (www.raylib.com)
* raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
*
* Copyright (c) 2018 Ramon Santamaria (@raysan5)
*
********************************************************************************************/
using System;
using System.Numerics;
using static Raylib_cs.Raylib;
namespace Examples.Models;
public class SolarSystem
{
public static int Main()
{
// Initialization
//--------------------------------------------------------------------------------------
const int screenWidth = 800;
const int screenHeight = 450;
const float sunRadius = 4.0f;
const float earthRadius = 0.6f;
const float earthOrbitRadius = 8.0f;
const float moonRadius = 0.16f;
const float moonOrbitRadius = 1.5f;
InitWindow(screenWidth, screenHeight, "raylib [models] example - rlgl module usage with push/pop matrix transformations");
// Define the camera to look into our 3d world
Camera3D camera = new();
camera.Position = new Vector3(16.0f, 16.0f, 16.0f);
camera.Target = new Vector3(0.0f, 0.0f, 0.0f);
camera.Up = new Vector3(0.0f, 1.0f, 0.0f);
camera.FovY = 45.0f;
camera.Projection = CameraProjection.CAMERA_PERSPECTIVE;
// General system rotation speed
float rotationSpeed = 0.2f;
// Rotation of earth around itself (days) in degrees
float earthRotation = 0.0f;
// Rotation of earth around the Sun (years) in degrees
float earthOrbitRotation = 0.0f;
// Rotation of moon around itself
float moonRotation = 0.0f;
// Rotation of moon around earth in degrees
float moonOrbitRotation = 0.0f;
SetTargetFPS(60);
//--------------------------------------------------------------------------------------
// Main game loop
while (!WindowShouldClose())
{
// Update
//----------------------------------------------------------------------------------
UpdateCamera(ref camera, CameraMode.CAMERA_FREE);
earthRotation += (5.0f * rotationSpeed);
earthOrbitRotation += (365 / 360.0f * (5.0f * rotationSpeed) * rotationSpeed);
moonRotation += (2.0f * rotationSpeed);
moonOrbitRotation += (8.0f * rotationSpeed);
//----------------------------------------------------------------------------------
// Draw
//----------------------------------------------------------------------------------
BeginDrawing();
ClearBackground(Color.RAYWHITE);
BeginMode3D(camera);
Rlgl.PushMatrix();
// Scale Sun
Rlgl.Scalef(sunRadius, sunRadius, sunRadius);
// Draw the Sun
DrawSphereBasic(Color.GOLD);
Rlgl.PopMatrix();
Rlgl.PushMatrix();
// Rotation for Earth orbit around Sun
Rlgl.Rotatef(earthOrbitRotation, 0.0f, 1.0f, 0.0f);
// Translation for Earth orbit
Rlgl.Translatef(earthOrbitRadius, 0.0f, 0.0f);
// Rotation for Earth orbit around Sun inverted
Rlgl.Rotatef(-earthOrbitRotation, 0.0f, 1.0f, 0.0f);
Rlgl.PushMatrix();
// Rotation for Earth itself
Rlgl.Rotatef(earthRotation, 0.25f, 1.0f, 0.0f);
// Scale Earth
Rlgl.Scalef(earthRadius, earthRadius, earthRadius);
// Draw the Earth
DrawSphereBasic(Color.BLUE);
Rlgl.PopMatrix();
// Rotation for Moon orbit around Earth
Rlgl.Rotatef(moonOrbitRotation, 0.0f, 1.0f, 0.0f);
// Translation for Moon orbit
Rlgl.Translatef(moonOrbitRadius, 0.0f, 0.0f);
// Rotation for Moon orbit around Earth inverted
Rlgl.Rotatef(-moonOrbitRotation, 0.0f, 1.0f, 0.0f);
// Rotation for Moon itself
Rlgl.Rotatef(moonRotation, 0.0f, 1.0f, 0.0f);
// Scale Moon
Rlgl.Scalef(moonRadius, moonRadius, moonRadius);
// Draw the Moon
DrawSphereBasic(Color.LIGHTGRAY);
Rlgl.PopMatrix();
// Some reference elements (not affected by previous matrix transformations)
DrawCircle3D(
new Vector3(0.0f, 0.0f, 0.0f),
earthOrbitRadius,
new Vector3(1, 0, 0),
90.0f,
ColorAlpha(Color.RED, 0.5f)
);
DrawGrid(20, 1.0f);
EndMode3D();
DrawText("EARTH ORBITING AROUND THE SUN!", 400, 10, 20, Color.MAROON);
DrawFPS(10, 10);
EndDrawing();
//----------------------------------------------------------------------------------
}
// De-Initialization
//--------------------------------------------------------------------------------------
CloseWindow();
//--------------------------------------------------------------------------------------
return 0;
}
// Draw sphere without any matrix transformation
// NOTE: Sphere is drawn in world position ( 0, 0, 0 ) with radius 1.0f
static void DrawSphereBasic(Color color)
{
int rings = 16;
int slices = 16;
Rlgl.Begin(DrawMode.TRIANGLES);
Rlgl.Color4ub(color.R, color.G, color.B, color.A);
for (int i = 0; i < (rings + 2); i++)
{
for (int j = 0; j < slices; j++)
{
Rlgl.Vertex3f(
MathF.Cos(DEG2RAD * (270 + (180 / (rings + 1)) * i)) * MathF.Sin(DEG2RAD * (j * 360 / slices)),
MathF.Sin(DEG2RAD * (270 + (180 / (rings + 1)) * i)),
MathF.Cos(DEG2RAD * (270 + (180 / (rings + 1)) * i)) * MathF.Cos(DEG2RAD * (j * 360 / slices))
);
Rlgl.Vertex3f(
MathF.Cos(DEG2RAD * (270 + (180 / (rings + 1)) * (i + 1))) * MathF.Sin(DEG2RAD * ((j + 1) * 360 / slices)),
MathF.Sin(DEG2RAD * (270 + (180 / (rings + 1)) * (i + 1))),
MathF.Cos(DEG2RAD * (270 + (180 / (rings + 1)) * (i + 1))) * MathF.Cos(DEG2RAD * ((j + 1) * 360 / slices))
);
Rlgl.Vertex3f(
MathF.Cos(DEG2RAD * (270 + (180 / (rings + 1)) * (i + 1))) * MathF.Sin(DEG2RAD * (j * 360 / slices)),
MathF.Sin(DEG2RAD * (270 + (180 / (rings + 1)) * (i + 1))),
MathF.Cos(DEG2RAD * (270 + (180 / (rings + 1)) * (i + 1))) * MathF.Cos(DEG2RAD * (j * 360 / slices))
);
Rlgl.Vertex3f(
MathF.Cos(DEG2RAD * (270 + (180 / (rings + 1)) * i)) * MathF.Sin(DEG2RAD * (j * 360 / slices)),
MathF.Sin(DEG2RAD * (270 + (180 / (rings + 1)) * i)),
MathF.Cos(DEG2RAD * (270 + (180 / (rings + 1)) * i)) * MathF.Cos(DEG2RAD * (j * 360 / slices))
);
Rlgl.Vertex3f(
MathF.Cos(DEG2RAD * (270 + (180 / (rings + 1)) * (i))) * MathF.Sin(DEG2RAD * ((j + 1) * 360 / slices)),
MathF.Sin(DEG2RAD * (270 + (180 / (rings + 1)) * (i))),
MathF.Cos(DEG2RAD * (270 + (180 / (rings + 1)) * (i))) * MathF.Cos(DEG2RAD * ((j + 1) * 360 / slices))
);
Rlgl.Vertex3f(
MathF.Cos(DEG2RAD * (270 + (180 / (rings + 1)) * (i + 1))) * MathF.Sin(DEG2RAD * ((j + 1) * 360 / slices)),
MathF.Sin(DEG2RAD * (270 + (180 / (rings + 1)) * (i + 1))),
MathF.Cos(DEG2RAD * (270 + (180 / (rings + 1)) * (i + 1))) * MathF.Cos(DEG2RAD * ((j + 1) * 360 / slices))
);
}
}
Rlgl.End();
}
}