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use std::fs::File;
use std::io::prelude::*;
use serde_json;
use std::error::Error;
use engine;
use engine::command;
use engine::bitwise_engine;
use engine::constants::*;
pub fn read_bitwise_state_from_file(filename: &str) -> Result<bitwise_engine::BitwiseGameState, Box<Error>> {
let mut file = File::open(filename)?;
let mut content = String::new();
file.read_to_string(&mut content)?;
let state: State = serde_json::from_str(content.as_ref())?;
let engine_state = state.to_bitwise_engine();
Ok(engine_state)
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
struct State {
players: Vec<Player>,
game_map: Vec<Vec<GameCell>>,
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
struct Player {
player_type: char,
energy: u16,
health: u8,
iron_curtain_available: bool,
active_iron_curtain_lifetime: i16
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
struct GameCell {
x: u8,
y: u8,
buildings: Vec<BuildingState>,
missiles: Vec<MissileState>,
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
struct BuildingState {
health: u8,
construction_time_left: i16,
weapon_cooldown_time_left: u8,
building_type: String,
x: u8,
y: u8,
player_type: char
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
struct MissileState {
player_type: char
}
impl State {
fn to_bitwise_engine(&self) -> bitwise_engine::BitwiseGameState {
let json_player = self.player();
let player = json_player.to_bitwise_engine();
let json_opponent = self.opponent();
let opponent = json_opponent.to_bitwise_engine();
let mut player_buildings = bitwise_engine::PlayerBuildings::empty();
let mut opponent_buildings = bitwise_engine::PlayerBuildings::empty();
// TODO roll the player into the playerbuildings and remove this duplication
player_buildings.iron_curtain_available = json_player.iron_curtain_available;
player_buildings.iron_curtain_remaining = if json_player.active_iron_curtain_lifetime < 0 {
0
} else {
json_player.active_iron_curtain_lifetime as u8
};
opponent_buildings.iron_curtain_available = json_opponent.iron_curtain_available;
opponent_buildings.iron_curtain_remaining = if json_opponent.active_iron_curtain_lifetime < 0 {
0
} else {
json_opponent.active_iron_curtain_lifetime as u8
};
for row in &self.game_map {
for cell in row {
let point = engine::geometry::Point::new(cell.x, cell.y);
for building in &cell.buildings {
let building_type = building.convert_building_type();
let mut bitwise_buildings = if building.player_type == 'A' {
&mut player_buildings
} else {
&mut opponent_buildings
};
let bitfield = point.to_either_bitfield();
bitwise_buildings.occupied |= bitfield;
if building.construction_time_left >= 0 {
bitwise_buildings.unconstructed.push(building.to_bitwise_engine_unconstructed());
} else {
for health_tier in 0..DEFENCE_HEALTH {
if building.health > health_tier as u8 * MISSILE_DAMAGE {
bitwise_buildings.buildings[health_tier] |= bitfield;
}
}
if building_type == command::BuildingType::Energy {
bitwise_buildings.energy_towers |= bitfield;
}
else if building_type == command::BuildingType::Attack {
for cooldown_tier in 0..MISSILE_COOLDOWN + 1 {
if building.weapon_cooldown_time_left == cooldown_tier as u8 {
bitwise_buildings.missile_towers[cooldown_tier] |= bitfield;
}
}
}
else if building_type == command::BuildingType::Tesla {
bitwise_buildings.tesla_cooldowns.push(bitwise_engine::TeslaCooldown {
pos: point,
cooldown: building.weapon_cooldown_time_left,
age: building.construction_time_left.abs() as u16
});
}
}
}
for missile in &cell.missiles {
let (mut left, mut right) = engine::geometry::Point::new_double_bitfield(cell.x, cell.y, missile.player_type == 'A');
let mut bitwise_buildings = if missile.player_type == 'A' {
&mut player_buildings
} else {
&mut opponent_buildings
};
for mut tier in bitwise_buildings.missiles.iter_mut() {
let setting = (!tier.0 & left, !tier.1 & right);
tier.0 |= setting.0;
tier.1 |= setting.1;
left &= !setting.0;
right &= !setting.1;
}
}
}
}
bitwise_engine::BitwiseGameState::new(
player, opponent,
player_buildings, opponent_buildings
)
}
fn player(&self) -> &Player {
self.players.iter()
.find(|p| p.player_type == 'A')
.expect("Player character did not appear in state.json")
}
fn opponent(&self) -> &Player {
self.players.iter()
.find(|p| p.player_type == 'B')
.expect("Opponent character did not appear in state.json")
}
}
impl Player {
fn to_bitwise_engine(&self) -> engine::bitwise_engine::Player {
engine::bitwise_engine::Player {
energy: self.energy,
health: self.health
}
}
}
impl BuildingState {
fn to_bitwise_engine_unconstructed(&self) -> bitwise_engine::UnconstructedBuilding {
bitwise_engine::UnconstructedBuilding {
pos: engine::geometry::Point::new(self.x, self.y),
construction_time_left: self.construction_time_left as u8, // > 0 check already happened
building_type: self.convert_building_type()
}
}
fn convert_building_type(&self) -> command::BuildingType {
match self.building_type.as_ref() {
"ATTACK" => command::BuildingType::Attack,
"ENERGY" => command::BuildingType::Energy,
"TESLA" => command::BuildingType::Tesla,
_ => command::BuildingType::Defence,
}
}
}
|
