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fix: calculate more static, stable offsets for path debug rendering

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Xevion
2025-08-11 16:00:23 -05:00
parent f3e7a780e2
commit 5e41c50c99
1 changed files with 12 additions and 10 deletions
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22
src/game.rs
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@@ -1,7 +1,7 @@
//! This module contains the main game logic and state. //! This module contains the main game logic and state.
use anyhow::Result; use anyhow::Result;
use glam::UVec2; use glam::{UVec2, Vec2};
use rand::{rngs::SmallRng, Rng, SeedableRng}; use rand::{rngs::SmallRng, Rng, SeedableRng};
use sdl2::{ use sdl2::{
image::LoadTexture, image::LoadTexture,
@@ -188,7 +188,7 @@ impl Game {
fn render_pathfinding_debug<T: RenderTarget>(&self, canvas: &mut Canvas<T>) -> Result<()> { fn render_pathfinding_debug<T: RenderTarget>(&self, canvas: &mut Canvas<T>) -> Result<()> {
let pacman_node = self.pacman.current_node_id(); let pacman_node = self.pacman.current_node_id();
for (i, ghost) in self.ghosts.iter().enumerate() { for ghost in self.ghosts.iter() {
if let Some(path) = ghost.calculate_path_to_target(&self.map.graph, pacman_node) { if let Some(path) = ghost.calculate_path_to_target(&self.map.graph, pacman_node) {
if path.len() < 2 { if path.len() < 2 {
continue; // Skip if path is too short continue; // Skip if path is too short
@@ -198,24 +198,26 @@ impl Game {
canvas.set_draw_color(ghost.debug_color()); canvas.set_draw_color(ghost.debug_color());
// Calculate offset based on ghost index to prevent overlapping lines // Calculate offset based on ghost index to prevent overlapping lines
let offset = (i as f32) * 2.0 - 3.0; // Offset range: -3.0 to 3.0 // let offset = (i as f32) * 2.0 - 3.0; // Offset range: -3.0 to 3.0
// Calculate a consistent offset direction for the entire path // Calculate a consistent offset direction for the entire path
let first_node = self.map.graph.get_node(path[0]).unwrap(); // let first_node = self.map.graph.get_node(path[0]).unwrap();
let last_node = self.map.graph.get_node(path[path.len() - 1]).unwrap(); // let last_node = self.map.graph.get_node(path[path.len() - 1]).unwrap();
let first_pos = first_node.position + crate::constants::BOARD_PIXEL_OFFSET.as_vec2();
let last_pos = last_node.position + crate::constants::BOARD_PIXEL_OFFSET.as_vec2();
// Use the overall direction from start to end to determine the perpendicular offset // Use the overall direction from start to end to determine the perpendicular offset
let overall_dir = (last_pos - first_pos).normalize(); let offset = match ghost.ghost_type {
let perp_dir = glam::Vec2::new(-overall_dir.y, overall_dir.x); GhostType::Blinky => Vec2::new(0.25, 0.5),
GhostType::Pinky => Vec2::new(-0.25, -0.25),
GhostType::Inky => Vec2::new(0.5, -0.5),
GhostType::Clyde => Vec2::new(-0.5, 0.25),
} * 5.0;
// Calculate offset positions for all nodes using the same perpendicular direction // Calculate offset positions for all nodes using the same perpendicular direction
let mut offset_positions = Vec::new(); let mut offset_positions = Vec::new();
for &node_id in &path { for &node_id in &path {
let node = self.map.graph.get_node(node_id).unwrap(); let node = self.map.graph.get_node(node_id).unwrap();
let pos = node.position + crate::constants::BOARD_PIXEL_OFFSET.as_vec2(); let pos = node.position + crate::constants::BOARD_PIXEL_OFFSET.as_vec2();
offset_positions.push(pos + perp_dir * offset); offset_positions.push(pos + offset);
} }
// Draw lines between the offset positions // Draw lines between the offset positions