From 0b8eb3e3f17328899188ecf2c7ce0829989ae5c8 Mon Sep 17 00:00:00 2001
From: Colin McMillen <colin@semicolin.games>
Date: Thu, 5 Mar 2020 15:28:34 -0500
Subject: [PATCH] Player: start using Sprite data to calculate texture source /
 animations.

---
 Shared/Player.cs   | 30 ++++++++++--------------------
 Shared/Sprites.cs  | 21 ++++++++++++---------
 Shared/Textures.cs |  6 +++++-
 3 files changed, 27 insertions(+), 30 deletions(-)

diff --git a/Shared/Player.cs b/Shared/Player.cs
index ef61401..7f0f438 100644
--- a/Shared/Player.cs
+++ b/Shared/Player.cs
@@ -231,36 +231,26 @@ namespace SemiColinGames {
       return result;
     }
 
-    private int SpriteIndex(Pose pose) {
-      int frameNum = (int) Clock.ModelTime.TotalMilliseconds / 125 % 4;
+    private Rectangle GetTextureSource(Pose pose) {
+      int time = (int) Clock.ModelTime.TotalMilliseconds;
       switch (pose) {
         case Pose.Walking:
-          return 35 + frameNum;
         case Pose.Jumping:
-          return 35 + frameNum;
+          return Sprites.Ninja.GetTextureSource("run", time);
         case Pose.SwordSwing:
-          if (swordSwingTime > 0.2) {
-            return 0 + swordSwingNum * 3;
-          } else if (swordSwingTime > 0.1) {
-            return 1 + swordSwingNum * 3;
-          } else {
-            return 2 + swordSwingNum * 3;
-          }
+          // TODO: make a proper animation class & FSM-driven animations.
+          return Sprites.Ninja.GetTextureSource(
+              "attack_sword", (int) (1000 * (0.3 - swordSwingTime)));
         case Pose.Crouching:
         case Pose.Stretching:
         case Pose.Standing:
-        default: {
-            if (frameNum == 3) {
-              frameNum = 1;
-            }
-            return 29 + frameNum;
-          }
+        default:
+          return Sprites.Ninja.GetTextureSource("idle", time);
       }
     }
 
     public void Draw(SpriteBatch spriteBatch) {
-      int index = SpriteIndex(pose);
-      Rectangle textureSource = new Rectangle(index * spriteWidth, 0, spriteWidth, spriteHeight);
+      Rectangle textureSource = GetTextureSource(pose);
       Vector2 spriteCenter = new Vector2(spriteWidth / 2, spriteHeight / 2 + spriteCenterYOffset);
       SpriteEffects effect = Facing == 1 ?
         SpriteEffects.None : SpriteEffects.FlipHorizontally;
@@ -268,7 +258,7 @@ namespace SemiColinGames {
       if (invincibilityTime > 0 && invincibilityTime % 0.2f > 0.1f) {
         color = new Color(0.5f, 0.5f, 0.5f, 0.5f);
       }
-      spriteBatch.Draw(Textures.Player.Get, position.ToVector2(), textureSource, color, 0f,
+      spriteBatch.Draw(Textures.Ninja.Get, position.ToVector2(), textureSource, color, 0f,
         spriteCenter, Vector2.One, effect, 0f);
     }
   }
diff --git a/Shared/Sprites.cs b/Shared/Sprites.cs
index 5676490..d6e15e1 100644
--- a/Shared/Sprites.cs
+++ b/Shared/Sprites.cs
@@ -4,6 +4,18 @@ using Newtonsoft.Json.Linq;
 using System.Collections.Generic;
 
 namespace SemiColinGames {
+  static class Sprites {
+    public static Sprite Executioner;
+    public static Sprite Ninja;
+
+    public static void Load(ContentManager content) {
+      Executioner = new Sprite(
+          Textures.Executioner, content.LoadString("sprites/ccg/executioner_female.json"));
+      Ninja = new Sprite(
+          Textures.Ninja, content.LoadString("sprites/ccg/ninja_female.json"));
+    }
+  }
+
   struct SpriteAnimation {
     public readonly int Start;
     public readonly int End;
@@ -77,13 +89,4 @@ namespace SemiColinGames {
       return frames[animation.End].Source;
     }
   }
-
-  static class Sprites {
-    public static Sprite Executioner;
-
-    public static void Load(ContentManager content) {
-      Executioner = new Sprite(
-          Textures.Executioner, content.LoadString("sprites/ccg/executioner_female.json"));
-    }
-  }
 }
diff --git a/Shared/Textures.cs b/Shared/Textures.cs
index f5b9cb8..671c7db 100644
--- a/Shared/Textures.cs
+++ b/Shared/Textures.cs
@@ -33,8 +33,11 @@ namespace SemiColinGames {
     public static SpriteFont DebugFont;
     public static SpriteFont BannerFont;
 
-    public static TextureRef Player = new TextureRef("sprites/ccg/ninja_female");
+    // Character spritesheets.
     public static TextureRef Executioner = new TextureRef("sprites/ccg/executioner_female");
+    public static TextureRef Ninja = new TextureRef("sprites/ccg/ninja_female");
+
+    // UI sprites.
     public static TextureRef Heart = new TextureRef("sprites/semicolin/heart");
 
     // Backgrounds are indexed by draw order; the first element should be drawn furthest back.
@@ -45,6 +48,7 @@ namespace SemiColinGames {
       new TextureRef("backgrounds/szadiart/pf4/background4_day"),
     };
 
+    // Background tiles.
     public static TextureRef Cemetery = new TextureRef("tiles/anokolisa/cemetery");
     public static TextureRef Crypt = new TextureRef("tiles/anokolisa/crypt");
     public static TextureRef Dungeon = new TextureRef("tiles/anokolisa/dungeon");