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Merge pull request #8 from mmcilroy/example_core_3d_camera_free

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example_core_3d_camera_free
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Evan Pratten 2023-12-15 20:48:00 -05:00 committed by GitHub
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examples/core_3d_camera_free.rs Normal file
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use raylib_ffi::*;
pub fn main() {
unsafe {
// Create a window
InitWindow(800, 450, rl_str!("raylib-ffi example - basic window"));
// Define the camera to look into our 3d world (position, target, up vector)
let mut camera = Camera{
position: Vector3{ x: 10.0, y: 10.0, z: 10.0 }, // Camera position
target: Vector3{ x: 0.0, y: 0.0, z: 0.0 }, // Camera looking at point
up: Vector3{ x: 0.0, y: 1.0, z: 0.0 }, // Camera up vector (rotation towards target)
fovy: 45.0, // Camera field-of-view Y
projection: enums::CameraProjection::Perspective as i32 // Camera projection type
};
let cube_position = Vector3{ x: 0.0, y: 0.0, z: 0.0 };
DisableCursor(); // Limit cursor to relative movement inside the window
SetTargetFPS(60); // Set our game to run at 60 frames-per-second
while !(WindowShouldClose()) { // Detect window close button or ESC key
// Update
//----------------------------------------------------------------------------------
UpdateCamera(&mut camera, enums::CameraMode::Free as i32);
if IsKeyPressed(enums::KeyboardKey::Z as i32) {
camera.target = Vector3{ x: 0.0, y: 0.0, z: 0.0 };
}
//----------------------------------------------------------------------------------
// Draw
//----------------------------------------------------------------------------------
BeginDrawing();
ClearBackground(colors::WHITE);
BeginMode3D(camera);
DrawCube(cube_position, 2.0, 2.0, 2.0, colors::RED);
DrawCubeWires(cube_position, 2.0, 2.0, 2.0, colors::MAROON);
DrawGrid(10, 1.0);
EndMode3D();
DrawRectangle( 10, 10, 320, 133, Fade(colors::SKYBLUE, 0.5));
DrawRectangleLines( 10, 10, 320, 133, colors::BLUE);
DrawText(rl_str!("Free camera default controls:"), 20, 20, 10, colors::BLACK);
DrawText(rl_str!("- Mouse Wheel to Zoom in-out"), 40, 40, 10, colors::DARKGRAY);
DrawText(rl_str!("- Mouse Wheel Pressed to Pan"), 40, 60, 10, colors::DARKGRAY);
DrawText(rl_str!("- Alt + Mouse Wheel Pressed to Rotate"), 40, 80, 10, colors::DARKGRAY);
DrawText(rl_str!("- Alt + Ctrl + Mouse Wheel Pressed for Smooth Zoom"), 40, 100, 10, colors::DARKGRAY);
DrawText(rl_str!("- Z to zoom to (0, 0, 0)"), 40, 120, 10, colors::DARKGRAY);
EndDrawing();
//----------------------------------------------------------------------------------
}
// De-Initialization
//--------------------------------------------------------------------------------------
CloseWindow();
//--------------------------------------------------------------------------------------
}
}