83 lines
3.4 KiB
Zig
83 lines
3.4 KiB
Zig
// raylib-zig (c) Nikolas Wipper 2023
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const rl = @import("raylib");
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const rlm = @import("raylib-math");
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const MAX_COLUMNS = 20;
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pub fn main() anyerror!void {
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// Initialization
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//--------------------------------------------------------------------------------------
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const screenWidth = 800;
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const screenHeight = 450;
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rl.InitWindow(screenWidth, screenHeight, "raylib-zig [core] example - 3d camera first person");
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var camera = rl.Camera3D{
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.position = rl.Vector3{ .x = 4, .y = 2, .z = 4 },
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.target = rl.Vector3{ .x = 0, .y = 1.8, .z = 0 },
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.up = rl.Vector3{ .x = 0, .y = 1, .z = 0 },
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.fovy = 60,
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.projection = rl.CameraProjection.CAMERA_PERSPECTIVE,
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};
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var heights: [MAX_COLUMNS]f32 = undefined;
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var positions: [MAX_COLUMNS]rl.Vector3 = undefined;
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var colors: [MAX_COLUMNS]rl.Color = undefined;
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for (heights) |_, i| {
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heights[i] = @intToFloat(f32, rl.GetRandomValue(1, 12));
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positions[i] = rl.Vector3{ .x = @intToFloat(f32, rl.GetRandomValue(-15, 15)), .y = heights[i] / 2.0, .z = @intToFloat(f32, rl.GetRandomValue(-15, 15)) };
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colors[i] = rl.Color{ .r = @intCast(u8, rl.GetRandomValue(20, 255)), .g = @intCast(u8, rl.GetRandomValue(10, 55)), .b = 30, .a = 255 };
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}
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camera.setMode(rl.CameraMode.CAMERA_FIRST_PERSON);
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rl.SetTargetFPS(60); // Set our game to run at 60 frames-per-second
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//--------------------------------------------------------------------------------------
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// Main game loop
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while (!rl.WindowShouldClose()) { // Detect window close button or ESC key
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// Update
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//----------------------------------------------------------------------------------
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camera.update();
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//----------------------------------------------------------------------------------
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// Draw
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//----------------------------------------------------------------------------------
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rl.BeginDrawing();
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rl.ClearBackground(rl.RAYWHITE);
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camera.begin();
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// Draw ground
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rl.DrawPlane(rl.Vector3{ .x = 0.0, .y = 0.0, .z = 0.0 }, rl.Vector2{ .x = 32.0, .y = 32.0 }, rl.LIGHTGRAY);
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rl.DrawCube(rl.Vector3{ .x = -16.0, .y = 2.5, .z = 0.0 }, 1.0, 5.0, 32.0, rl.BLUE); // Draw a blue wall
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rl.DrawCube(rl.Vector3{ .x = 16.0, .y = 2.5, .z = 0.0 }, 1.0, 5.0, 32.0, rl.LIME); // Draw a green wall
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rl.DrawCube(rl.Vector3{ .x = 0.0, .y = 2.5, .z = 16.0 }, 32.0, 5.0, 1.0, rl.GOLD); // Draw a yellow wall
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// Draw some cubes around
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for (heights) |height, i| {
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rl.DrawCube(positions[i], 2.0, height, 2.0, colors[i]);
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rl.DrawCubeWires(positions[i], 2.0, height, 2.0, rl.MAROON);
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}
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camera.end();
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rl.DrawRectangle(10, 10, 220, 70, rl.Fade(rl.SKYBLUE, 0.5));
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rl.DrawRectangleLines(10, 10, 220, 70, rl.BLUE);
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rl.DrawText("First person camera default controls:", 20, 20, 10, rl.BLACK);
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rl.DrawText("- Move with keys: W, A, S, D", 40, 40, 10, rl.DARKGRAY);
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rl.DrawText("- Mouse move to look around", 40, 60, 10, rl.DARKGRAY);
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rl.EndDrawing();
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//----------------------------------------------------------------------------------
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}
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// De-Initialization
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//--------------------------------------------------------------------------------------
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rl.CloseWindow(); // Close window and OpenGL context
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//--------------------------------------------------------------------------------------
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}
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