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use ggez::nalgebra::Point2;
use ggez::Context;
use crate::constants;
pub struct Camera {
pub draw: Point2<f32>,
window_height: f32,
window_width: f32,
map_height: f32,
map_width: f32,
}
impl Camera {
pub fn new(context: &mut Context, dimensions: (f32, f32)) -> Camera {
Camera {
draw: Point2::new(0.0, 0.0),
window_height: context.conf.window_mode.height,
window_width: context.conf.window_mode.width,
map_width: dimensions.0,
map_height: dimensions.1,
}
}
pub fn give_center(&mut self, center: Point2<f32>) {
self.draw.x = ((self.window_width / 2.0) - center.x) - (constants::TILE_WIDTH);
self.draw.y = ((self.window_height / 2.0) - center.y) - (constants::TILE_HEIGHT);
if self.draw.x > 0.0 {
self.draw.x = 0.0;
} else if self.draw.x - self.window_width < -1.0 * self.map_width {
self.draw.x = -1.0 * (self.map_width - self.window_width);
}
if self.draw.y > 0.0 {
self.draw.y = 0.0;
} else if self.draw.y - self.window_height < -1.0 * self.map_height {
self.draw.y = -1.0 * (self.map_height - self.window_height);
}
}
}
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