fumarole/unit.odin

package main

import "util"
import "vendor:sdl3"

DEFAULT_HP :: 100
DEFAULT_VELOCITY: util.Velocity : util.Velocity{x = 0, y = 0}
DEFAULT_SPEED: f32 : 200

Faction :: enum {
	Player,
	Allied,
	Enemy,
}

Unit :: struct {
	faction:  Faction,
	position: util.Position,
	velocity: util.Velocity,
	speed:    f32,
	hp:       u32,
}

render_unit :: proc(unit: Unit, game: ^Game) {
	switch unit.faction {
	case Faction.Player:
		sdl3.SetRenderDrawColor(game.render, 0, 255, 0, 0)
	case Faction.Enemy:
		sdl3.SetRenderDrawColor(game.render, 255, 0, 0, 0)
	case Faction.Allied:
		sdl3.SetRenderDrawColor(game.render, 0, 0, 255, 0)
	}
	sdl3.RenderRect(
		game.render,
		&sdl3.FRect{x = unit.position.x, y = unit.position.y, w = 10, h = 10},
	)
}

new_unit :: proc {
	new_unit_all,
	new_unit_base,
	new_unit_hp,
}

new_unit_base :: proc(faction: Faction, position: util.Position) -> Unit {
	return Unit{faction, position, DEFAULT_VELOCITY, DEFAULT_SPEED, DEFAULT_HP}
}

new_unit_hp :: proc(faction: Faction, position: util.Position, hp: u32) -> Unit {
	return Unit{faction, position, DEFAULT_VELOCITY, DEFAULT_SPEED, hp}
}

new_unit_all :: proc(faction: Faction, position: util.Position, speed: f32, hp: u32) -> Unit {
	return Unit{faction, position, DEFAULT_VELOCITY, speed, hp}
}

Projectile :: struct {
	faction:   Faction,
	position:  util.Position,
	direction: util.Velocity,
}