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--[[
Game State - Main gameplay state
Demonstrates:
- GameState usage
- Animation system
- Object-oriented player
- Basic game loop
]]
local Object = require("lib.classic")
local Animation = require("lib.animation")
local GameState = Object:extend()
-- Player class
local Player = Object:extend()
function Player:new(x, y)
self.x = x
self.y = y
self.speed = 200
self.animation = nil
end
function Player:update(dt)
local moved = false
-- Movement
if RL.IsKeyDown(RL.KEY_LEFT) or RL.IsKeyDown(RL.KEY_A) then
self.x = self.x - self.speed * dt
moved = true
end
if RL.IsKeyDown(RL.KEY_RIGHT) or RL.IsKeyDown(RL.KEY_D) then
self.x = self.x + self.speed * dt
moved = true
end
if RL.IsKeyDown(RL.KEY_UP) or RL.IsKeyDown(RL.KEY_W) then
self.y = self.y - self.speed * dt
moved = true
end
if RL.IsKeyDown(RL.KEY_DOWN) or RL.IsKeyDown(RL.KEY_S) then
self.y = self.y + self.speed * dt
moved = true
end
-- Update animation
if self.animation then
if moved then
self.animation:play("walk")
else
self.animation:play("idle")
end
self.animation:update(dt)
end
end
function Player:draw()
if self.animation then
self.animation:drawSimple(self.x, self.y)
else
-- Fallback: draw a simple rectangle
RL.DrawRectangle({self.x, self.y, 32, 32}, RL.BLUE)
end
end
-- Game State
function GameState:new()
self.player = nil
self.paused = false
end
function GameState:enter(previous)
print("Entered game state")
local screenSize = RL.GetScreenSize()
-- Create player
self.player = Player(screenSize[1] / 2 - 16, screenSize[2] / 2 - 16)
-- TODO: Load player sprite sheet and create animation
-- Example:
-- local playerTexture = RL.LoadTexture("assets/player.png")
-- self.player.animation = Animation.new(playerTexture, 32, 32, {
-- idle = {frames = {1, 2, 3, 4}, fps = 8, loop = true},
-- walk = {frames = {5, 6, 7, 8}, fps = 12, loop = true}
-- })
-- self.player.animation:play("idle")
end
function GameState:update(dt)
-- Pause/unpause
if RL.IsKeyPressed(RL.KEY_ESCAPE) or RL.IsKeyPressed(RL.KEY_P) then
self.paused = not self.paused
end
if self.paused then
return
end
-- Update game objects
if self.player then
self.player:update(dt)
end
end
function GameState:draw()
RL.ClearBackground({50, 50, 50, 255})
-- Draw game objects
if self.player then
self.player:draw()
end
-- Draw pause overlay
if self.paused then
local screenSize = RL.GetScreenSize()
local centerX = screenSize[1] / 2
local centerY = screenSize[2] / 2
-- Semi-transparent overlay
RL.DrawRectangle({0, 0, screenSize[1], screenSize[2]}, {0, 0, 0, 128})
-- Pause text
local text = "PAUSED"
local size = 40
local width = RL.MeasureText(text, size)
RL.DrawText(text, {centerX - width / 2, centerY - 20}, size, RL.WHITE)
local hint = "Press ESC or P to resume"
local hintSize = 20
local hintWidth = RL.MeasureText(hint, hintSize)
RL.DrawText(hint, {centerX - hintWidth / 2, centerY + 30}, hintSize, RL.GRAY)
end
-- Draw controls hint
local hint = "WASD/ARROWS: Move | ESC: Pause"
local hintSize = 16
local screenSize = RL.GetScreenSize()
RL.DrawText(hint, {10, screenSize[2] - 30}, hintSize, RL.LIGHTGRAY)
end
function GameState:leave()
print("Left game state")
-- Cleanup game assets here
end
return GameState
|
