From 4718c83d9204a0a9e2e0add143e829bbb9c0bff0 Mon Sep 17 00:00:00 2001
From: Luke Bratch <l_bratch@yahoo.co.uk>
Date: Fri, 26 Nov 2010 12:49:49 +0000
Subject: Implement Sprite::get/setClip for sprite sheet clipping &
 Creature::Orient for setting a Creature's clip/orientation

---
 Creature.cpp    | 11 +++++++++++
 Creature.h      |  3 +++
 Level.cpp       |  8 +++++++-
 Sprite.cpp      | 17 +++++++++++++++++
 Sprite.h        |  9 +++++++++
 intensemarcus.h |  6 ++++++
 6 files changed, 53 insertions(+), 1 deletion(-)

diff --git a/Creature.cpp b/Creature.cpp
index 7693cb9..ba2a790 100644
--- a/Creature.cpp
+++ b/Creature.cpp
@@ -38,3 +38,14 @@ int Creature::getHealth() {
 void Creature::setHealth(int h) {
     health = h;
 }
+
+void Creature::orient() {
+    if (xVel < 0)
+        clipNo = ORIENT_LEFT;
+    else if (xVel > 0)
+        clipNo = ORIENT_RIGHT;
+    else if (yVel < 0)
+        clipNo = ORIENT_BACK;
+    else
+        clipNo = ORIENT_FRONT;
+}
diff --git a/Creature.h b/Creature.h
index 4c9197c..eb0f192 100644
--- a/Creature.h
+++ b/Creature.h
@@ -22,6 +22,9 @@ class Creature : public Sprite {
         int getHealth();
         void setHealth(int h);
 
+        // Set correct sprite clip for current situation
+        void orient();
+
     protected:
         // Velocities
         int xVel, yVel;
diff --git a/Level.cpp b/Level.cpp
index 6c0f80c..8268af8 100644
--- a/Level.cpp
+++ b/Level.cpp
@@ -32,15 +32,21 @@ void Level::changeLevel(int levelNo) {
 
     // Make player into a Marcus
     player.setImage("marcussheet.png");
+    player.setClip(ORIENT_FRONT, MARCUS_WIDTH * 0, 0, MARCUS_WIDTH, MARCUS_HEIGHT);
+    player.setClip(ORIENT_BACK, MARCUS_WIDTH * 1, 0, MARCUS_WIDTH, MARCUS_HEIGHT);
+    player.setClip(ORIENT_RIGHT, MARCUS_WIDTH * 2, 0, MARCUS_WIDTH, MARCUS_HEIGHT);
+    player.setClip(ORIENT_LEFT, MARCUS_WIDTH * 3, 0, MARCUS_WIDTH, MARCUS_HEIGHT);
 }
 
 void Level::move() {
+    // Player movements
     player.setX(player.getX() + player.getXVel());
+    player.orient();
 }
 
 void Level::draw(Screen *screen) {
     // Blit background
     screen->blit(0, 0, background);
 
-    screen->blit(player.getX(), player.getY(), player.image);
+    screen->blit(player.getX(), player.getY(), player.image, player.getClip());
 }
diff --git a/Sprite.cpp b/Sprite.cpp
index d87368a..3b10208 100644
--- a/Sprite.cpp
+++ b/Sprite.cpp
@@ -28,4 +28,21 @@ bool Sprite::visible() {
 
 bool Sprite::setImage(std::string path) {
     image = loadImage(path);
+    // Set initial clip to the whole image
+    clipNo = 0;
+    clip[0].x = 0;
+    clip[0].y = 0;
+    clip[0].w = image->w;
+    clip[0].h = image->h;
+}
+
+SDL_Rect* Sprite::getClip() {
+    return &clip[clipNo];
+}
+
+void Sprite::setClip(int clipNo, int x, int y, int w, int h) {
+    clip[clipNo].x = x;
+    clip[clipNo].y = y;
+    clip[clipNo].w = w;
+    clip[clipNo].h = h;
 }
diff --git a/Sprite.h b/Sprite.h
index 74f9bea..d745376 100644
--- a/Sprite.h
+++ b/Sprite.h
@@ -25,12 +25,21 @@ class Sprite {
         // This sprite's image
         SDL_Surface *image;
 
+        SDL_Rect* getClip();
+
+        void setClip(int clipNo, int x, int y, int w, int h);
+
     protected:
         // Coordinates
         int x, y;
 
         // Visability
         bool isVisible;
+
+        // Sprite clip
+        SDL_Rect clip[4];
+        // Clip number
+        int clipNo;
 };
 
 #endif
diff --git a/intensemarcus.h b/intensemarcus.h
index 543eafc..45bc78c 100644
--- a/intensemarcus.h
+++ b/intensemarcus.h
@@ -9,6 +9,12 @@ const int SCREEN_WIDTH = 800;
 const int SCREEN_HEIGHT = 600;
 const int SCREEN_BPP = 32;
 const int FPS = 30;
+const int MARCUS_WIDTH = 64;
+const int MARCUS_HEIGHT = 124;
+const int ORIENT_FRONT = 0;
+const int ORIENT_BACK = 1;
+const int ORIENT_RIGHT = 2;
+const int ORIENT_LEFT = 3;
 
 SDL_Surface *loadImage(std::string filename);
 
-- 
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