94 lines
2.2 KiB
D
94 lines
2.2 KiB
D
import std.stdio;
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import std.datetime;
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struct Texture2D {
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uint id;
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int width;
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int height;
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int mipmaps;
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int format;
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}
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struct Vector2 {
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float x;
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float y;
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}
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struct Color {
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ubyte r;
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ubyte g;
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ubyte b;
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ubyte a;
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}
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extern(C):
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void InitWindow(int width, int height, const char* title);
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void CloseWindow();
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void SetTargetFPS(int fps);
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void SetRandomSeed(uint seed);
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int GetRandomValue(int min, int max);
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Texture2D LoadTexture(const char* file_name);
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void UnloadTexture(Texture2D texture);
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bool WindowShouldClose();
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float GetFrameTime();
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void BeginDrawing();
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void ClearBackground(Color color);
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void DrawTextureEx(Texture2D texture, Vector2 position, float rotation, float scale, Color tint);
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void EndDrawing();
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const int WINDOW_WIDTH = 800;
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const int WINDOW_HEIGHT = 600;
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const float LOGO_SCALE = 0.1f;
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const float LOGO_SPEED = 300;
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const Color BLACK = Color(0, 0, 0, 255);
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const Color WHITE = Color(255, 255, 255, 255);
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void main() {
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InitWindow(800, 600, "Raylib in D");
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SetTargetFPS(60);
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SetRandomSeed(cast(uint)Clock.currStdTime());
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Texture2D logo_texture = LoadTexture("./d_logo.png");
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int logo_width = cast(int)(logo_texture.width * LOGO_SCALE);
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int logo_height = cast(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);
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float dy = LOGO_SPEED * (GetRandomValue(0, 1) ? -1 : 1);
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while (!WindowShouldClose()) {
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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, Vector2(x, 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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} |