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Some work on the examples

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Not-Nik 2023-07-09 18:45:15 +02:00
parent ffe8091bc4
commit 42671d0195
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14 changed files with 349 additions and 287 deletions
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95
examples/core/2d_camera.zig
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@ -1,17 +1,11 @@
//
// 2d_camera
// Zig version:
// Author: Nikolas Wipper
// Date: 2020-02-16
//
// raylib-zig (c) Nikolas Wipper 2023
const rl = @import("raylib");
const rlm = @import("raylib-math");
const MAX_BUILDINGS = 100;
pub fn main() anyerror!void
{
pub fn main() anyerror!void {
// Initialization
//--------------------------------------------------------------------------------------
const screenWidth = 800;
@ -19,14 +13,13 @@ pub fn main() anyerror!void
rl.InitWindow(screenWidth, screenHeight, "raylib-zig [core] example - 2d camera");
var player = rl.Rectangle { .x = 400, .y = 280, .width = 40, .height = 40 };
var player = rl.Rectangle{ .x = 400, .y = 280, .width = 40, .height = 40 };
var buildings: [MAX_BUILDINGS]rl.Rectangle = undefined;
var buildColors: [MAX_BUILDINGS]rl.Color = undefined;
var spacing: i32 = 0;
for (buildings) |_, i|
{
for (buildings) |_, i| {
buildings[i].width = @intToFloat(f32, rl.GetRandomValue(50, 200));
buildings[i].height = @intToFloat(f32, rl.GetRandomValue(100, 800));
buildings[i].y = screenHeight - 130 - buildings[i].height;
@ -34,36 +27,40 @@ pub fn main() anyerror!void
spacing += @floatToInt(i32, buildings[i].width);
buildColors[i] = rl.Color { .r = @intCast(u8, rl.GetRandomValue(200, 240)), .g = @intCast(u8, rl.GetRandomValue(200, 240)),
.b = @intCast(u8, rl.GetRandomValue(200, 250)), .a = 255 };
buildColors[i] = rl.Color{ .r = @intCast(u8, rl.GetRandomValue(200, 240)), .g = @intCast(u8, rl.GetRandomValue(200, 240)), .b = @intCast(u8, rl.GetRandomValue(200, 250)), .a = 255 };
}
var camera = rl.Camera2D {
.target = rl.Vector2 { .x = player.x + 20, .y = player.y + 20 },
.offset = rl.Vector2 { .x = screenWidth/2, .y = screenHeight/2 },
var camera = rl.Camera2D{
.target = rl.Vector2{ .x = player.x + 20, .y = player.y + 20 },
.offset = rl.Vector2{ .x = screenWidth / 2, .y = screenHeight / 2 },
.rotation = 0,
.zoom = 1,
};
rl.SetTargetFPS(60); // Set our game to run at 60 frames-per-second
rl.SetTargetFPS(60); // Set our game to run at 60 frames-per-second
//--------------------------------------------------------------------------------------
// Main game loop
while (!rl.WindowShouldClose()) // Detect window close button or ESC key
{
while (!rl.WindowShouldClose()) { // Detect window close button or ESC key
// Update
//----------------------------------------------------------------------------------
// Player movement
if (rl.IsKeyDown(rl.KeyboardKey.KEY_RIGHT)) { player.x += 2; }
else if (rl.IsKeyDown(rl.KeyboardKey.KEY_LEFT)) { player.x -= 2; }
if (rl.IsKeyDown(rl.KeyboardKey.KEY_RIGHT)) {
player.x += 2;
} else if (rl.IsKeyDown(rl.KeyboardKey.KEY_LEFT)) {
player.x -= 2;
}
// Camera target follows player
camera.target = rl.Vector2 { .x = player.x + 20, .y = player.y + 20 };
camera.target = rl.Vector2{ .x = player.x + 20, .y = player.y + 20 };
// Camera rotation controls
if (rl.IsKeyDown(rl.KeyboardKey.KEY_A)) { camera.rotation -= 1; }
else if (rl.IsKeyDown(rl.KeyboardKey.KEY_S)) { camera.rotation += 1; }
if (rl.IsKeyDown(rl.KeyboardKey.KEY_A)) {
camera.rotation -= 1;
} else if (rl.IsKeyDown(rl.KeyboardKey.KEY_S)) {
camera.rotation += 1;
}
// Limit camera rotation to 80 degrees (-40 to 40)
camera.rotation = rlm.Clamp(camera.rotation, -40, 40);
@ -74,8 +71,7 @@ pub fn main() anyerror!void
camera.zoom = rlm.Clamp(camera.zoom, 0.1, 3.0);
// Camera reset (zoom and rotation)
if (rl.IsKeyPressed(rl.KeyboardKey.KEY_R))
{
if (rl.IsKeyPressed(rl.KeyboardKey.KEY_R)) {
camera.zoom = 1.0;
camera.rotation = 0.0;
}
@ -85,39 +81,38 @@ pub fn main() anyerror!void
//----------------------------------------------------------------------------------
rl.BeginDrawing();
rl.ClearBackground(rl.RAYWHITE);
rl.ClearBackground(rl.RAYWHITE);
camera.Begin();
camera.begin();
rl.DrawRectangle(-6000, 320, 13000, 8000, rl.DARKGRAY);
rl.DrawRectangle(-6000, 320, 13000, 8000, rl.DARKGRAY);
for (buildings) |building, i|
{
rl.DrawRectangleRec(building, buildColors[i]);
}
for (buildings) |building, i| {
rl.DrawRectangleRec(building, buildColors[i]);
}
rl.DrawRectangleRec(player, rl.RED);
rl.DrawRectangleRec(player, rl.RED);
rl.DrawLine(@floatToInt(c_int, camera.target.x), -screenHeight*10, @floatToInt(c_int, camera.target.x), screenHeight*10, rl.GREEN);
rl.DrawLine(-screenWidth*10, @floatToInt(c_int, camera.target.y), screenWidth*10, @floatToInt(c_int, camera.target.y), rl.GREEN);
rl.DrawLine(@floatToInt(c_int, camera.target.x), -screenHeight * 10, @floatToInt(c_int, camera.target.x), screenHeight * 10, rl.GREEN);
rl.DrawLine(-screenWidth * 10, @floatToInt(c_int, camera.target.y), screenWidth * 10, @floatToInt(c_int, camera.target.y), rl.GREEN);
camera.End();
camera.end();
rl.DrawText("SCREEN AREA", 640, 10, 20, rl.RED);
rl.DrawText("SCREEN AREA", 640, 10, 20, rl.RED);
rl.DrawRectangle(0, 0, screenWidth, 5, rl.RED);
rl.DrawRectangle(0, 5, 5, screenHeight - 10, rl.RED);
rl.DrawRectangle(screenWidth - 5, 5, 5, screenHeight - 10, rl.RED);
rl.DrawRectangle(0, screenHeight - 5, screenWidth, 5, rl.RED);
rl.DrawRectangle(0, 0, screenWidth, 5, rl.RED);
rl.DrawRectangle(0, 5, 5, screenHeight - 10, rl.RED);
rl.DrawRectangle(screenWidth - 5, 5, 5, screenHeight - 10, rl.RED);
rl.DrawRectangle(0, screenHeight - 5, screenWidth, 5, rl.RED);
rl.DrawRectangle( 10, 10, 250, 113, rl.Fade(rl.SKYBLUE, 0.5));
rl.DrawRectangleLines( 10, 10, 250, 113, rl.BLUE);
rl.DrawRectangle(10, 10, 250, 113, rl.Fade(rl.SKYBLUE, 0.5));
rl.DrawRectangleLines(10, 10, 250, 113, rl.BLUE);
rl.DrawText("Free 2d camera controls:", 20, 20, 10, rl.BLACK);
rl.DrawText("- Right/Left to move Offset", 40, 40, 10, rl.DARKGRAY);
rl.DrawText("- Mouse Wheel to Zoom in-out", 40, 60, 10, rl.DARKGRAY);
rl.DrawText("- A / S to Rotate", 40, 80, 10, rl.DARKGRAY);
rl.DrawText("- R to reset Zoom and Rotation", 40, 100, 10, rl.DARKGRAY);
rl.DrawText("Free 2d camera controls:", 20, 20, 10, rl.BLACK);
rl.DrawText("- Right/Left to move Offset", 40, 40, 10, rl.DARKGRAY);
rl.DrawText("- Mouse Wheel to Zoom in-out", 40, 60, 10, rl.DARKGRAY);
rl.DrawText("- A / S to Rotate", 40, 80, 10, rl.DARKGRAY);
rl.DrawText("- R to reset Zoom and Rotation", 40, 100, 10, rl.DARKGRAY);
rl.EndDrawing();
//----------------------------------------------------------------------------------
@ -125,6 +120,6 @@ pub fn main() anyerror!void
// De-Initialization
//--------------------------------------------------------------------------------------
rl.CloseWindow(); // Close window and OpenGL context
rl.CloseWindow(); // Close window and OpenGL context
//--------------------------------------------------------------------------------------
}