105 lines
3.3 KiB
C#
105 lines
3.3 KiB
C#
using System.Runtime.InteropServices;
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static class Program
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{
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[StructLayout(LayoutKind.Sequential)]
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struct Texture2D
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{
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public uint id;
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public int width;
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public int height;
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public int mipmaps;
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public int format;
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}
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[StructLayout(LayoutKind.Sequential)]
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struct Vector2
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{
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public float x;
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public float y;
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}
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[StructLayout(LayoutKind.Sequential)]
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struct Color
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{
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public byte r;
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public byte g;
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public byte b;
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public byte a;
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}
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private const string RAYLIB = "../_raylib-5.5_linux_amd64/lib/libraylib.so";
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[DllImport(RAYLIB)] private static extern void InitWindow(int width, int height, string title);
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[DllImport(RAYLIB)] private static extern void CloseWindow();
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[DllImport(RAYLIB)] private static extern void SetTargetFPS(int fps);
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[DllImport(RAYLIB)] private static extern void SetRandomSeed(uint seed);
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[DllImport(RAYLIB)] private static extern int GetRandomValue(int min, int max);
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[DllImport(RAYLIB)] private static extern Texture2D LoadTexture(string file_name);
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[DllImport(RAYLIB)] private static extern void UnloadTexture(Texture2D texture);
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[DllImport(RAYLIB)] private static extern bool WindowShouldClose();
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[DllImport(RAYLIB)] private static extern float GetFrameTime();
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[DllImport(RAYLIB)] private static extern void BeginDrawing();
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[DllImport(RAYLIB)] private static extern void ClearBackground(Color color);
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[DllImport(RAYLIB)] private static extern void DrawTextureEx(Texture2D texture, Vector2 position, float rotation, float scale, Color tint);
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[DllImport(RAYLIB)] private static extern void EndDrawing();
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private const int WINDOW_WIDTH = 800;
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private const int WINDOW_HEIGHT = 600;
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private const float LOGO_SCALE = 0.05f;
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private const float LOGO_SPEED = 300;
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private static Color BLACK = new Color() { r = 0, g = 0, b = 0, a = 255 };
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private static Color WHITE = new Color() { r = 255, g = 255, b = 255, a = 255 };
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public static void Main()
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{
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InitWindow(WINDOW_WIDTH, WINDOW_HEIGHT, "Raylib in C#");
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SetTargetFPS(60);
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Texture2D logo_texture = LoadTexture("./csharp_logo.png");
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int logo_width = (int)(logo_texture.width * LOGO_SCALE);
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int logo_height = (int)(logo_texture.height * LOGO_SCALE);
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float x = GetRandomValue(0, WINDOW_WIDTH - logo_width);
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float y = GetRandomValue(0, WINDOW_HEIGHT - logo_height);
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float dx = LOGO_SPEED * (GetRandomValue(0, 1) == 1 ? -1 : 1);
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float dy = LOGO_SPEED * (GetRandomValue(0, 1) == 1 ? -1 : 1);
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while (!WindowShouldClose())
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{
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float delta_time = GetFrameTime();
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x += dx * delta_time;
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y += dy * delta_time;
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if (x < 0 || (x + logo_width) >= WINDOW_WIDTH - 1)
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{
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dx *= -1;
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x += dx * delta_time;
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}
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if (y < 0 || (y + logo_height) >= WINDOW_HEIGHT - 1)
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{
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dy *= -1;
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y += dy * delta_time;
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}
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BeginDrawing();
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ClearBackground(BLACK);
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DrawTextureEx(logo_texture, new Vector2() { x = x, y = y }, 0, LOGO_SCALE, WHITE);
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EndDrawing();
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}
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UnloadTexture(logo_texture);
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CloseWindow();
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}
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} |