codebykeoma · April 18, 2019 17:43 · Apr 18, 2019 · Apr 18, 2019 · Apr 18, 2019 · Apr 15, 2019
diff --git a/ruby2d_sprites.rb → sprites_in_ruby2d.rb b/ruby2d_sprites.rb → sprites_in_ruby2d.rb
diff --git a/cxk_sprites.rb → ruby2d_sprites.rb b/cxk_sprites.rb → ruby2d_sprites.rb
diff --git a/cxk_hero.rb → cxk_sprites.rb b/cxk_hero.rb → cxk_sprites.rb
diff --git a/cxk_hero.rb b/cxk_hero.rb
@@ -58,23 +58,23 @@
 
 # this method ensures that objects stay within the game window
 # e.g. call set_boundaries(@hero) to keep @hero within the limits
-def set_boundaries(object)
+def set_boundaries(obj)
   # x-axis boundaries
-  if object.x >= Window.width - object.width
-    object.x = Window.width - object.width
+  if obj.x >= Window.width - obj.width
+    obj.x = Window.width - obj.width
   end
 
-  if object.x <= Zero
-    object.x = Zero
+  if obj.x <= Zero
+    obj.x = Zero
   end
 
   #y-axis boundaries
-  if object.y >= Window.height - object.height
-    object.y = Window.height - object.height
+  if obj.y >= Window.height - obj.height
+    obj.y = Window.height - obj.height
   end
 
-  if object.y <= Zero
-    object.y = Zero
+  if obj.y <= Zero
+    obj.y = Zero
   end
 end
 

diff --git a/cxk_hero.rb b/cxk_hero.rb
@@ -19,6 +19,11 @@
 # sword parameters
 @sword_height = 64
 @sword_width = 64
+# @sword_x = 150
+# @sword_y = 390
+@sword_x = Window.width/2 - @sword_width/2
+@sword_y = Window.height/2 - @sword_height/2
+
 
 # load assests
 
@@ -28,8 +33,8 @@
   height: @sword_height,
   width: @sword_width,
   rotate: 180,
-  x: 150,
-  y: 390
+  x: @sword_x,
+  y: @sword_y
 )
 
 # sprites
@@ -73,6 +78,16 @@ def set_boundaries(object)
   end
 end
 
+# this method determines if two objects have collided
+def is_collided(obj_one, obj_two)
+  # if first_object.x <= second_object.x + second_object.width && first_object.x + first_object.width >= second_object.x && first_object.y <= second_object.y + second_object.height && first_object.y + first_object.height >= second_object.y
+  if obj_one.x <= obj_two.x + obj_two.width && obj_one.x + obj_one.width >= obj_two.x && obj_one.y <= obj_two.y + obj_two.height && obj_one.y + obj_one.height >= obj_two.y
+    puts 'object one is colliding with object two :)'
+  else
+    puts 'object one is not colliding with object two :)'
+  end
+end
+
 # handle user input
 on :key_held do |event|
   case event.key
@@ -128,6 +143,7 @@ def set_boundaries(object)
 
   # pass hero to the method responsible for keeping objects within the game screen boundaries
   set_boundaries(@hero)
+  is_collided(@hero, @sword)
 end
 
 on :key_up do |event|
@@ -143,4 +159,4 @@ def set_boundaries(object)
   end
 end
 
-show
+show
diff --git a/cxk_hero.rb b/cxk_hero.rb
@@ -49,7 +49,10 @@
   }
 )
 
-# define methods
+# methods
+
+# this method ensures that objects stay within the game window
+# e.g. call set_boundaries(@hero) to keep @hero within the limits
 def set_boundaries(object)
   # x-axis boundaries
   if object.x >= Window.width - object.width
@@ -123,6 +126,7 @@ def set_boundaries(object)
      end
   end
 
+  # pass hero to the method responsible for keeping objects within the game screen boundaries
   set_boundaries(@hero)
 end
 
@@ -139,4 +143,4 @@ def set_boundaries(object)
   end
 end
 
-show
+show
diff --git a/keoma_hero.rb → cxk_hero.rb b/keoma_hero.rb → cxk_hero.rb
diff --git a/keoma_hero.rb b/keoma_hero.rb
@@ -0,0 +1,142 @@
+system('clear')
+
+require 'ruby2d'
+
+set title: 'Sprite animation'
+set background: 'blue'
+
+Zero = 0
+
+# hero parameters
+@hero_width = 78
+@hero_height = 99
+@hero_time = 150
+@hero_direction = ''
+
+@move_by = 4
+@sprint_speed = 2
+
+# sword parameters
+@sword_height = 64
+@sword_width = 64
+
+# load assests
+
+# images
+@sword = Image.new(
+  './assets/sword.png',
+  height: @sword_height,
+  width: @sword_width,
+  rotate: 180,
+  x: 150,
+  y: 390
+)
+
+# sprites
+@hero = Sprite.new(
+  './assets/hero.png',
+  width: @hero_width,
+  height: @hero_height,
+  clip_width: @hero_width,
+  clip_height: @hero_height,
+  x: Zero,
+  y: Window.height - @hero_height,
+  time: @hero_time,
+  animations: {
+    walk: 1..2,
+    climb: 3..4,
+    cheer: 5..6
+  }
+)
+
+# define methods
+def set_boundaries(object)
+  # x-axis boundaries
+  if object.x >= Window.width - object.width
+    object.x = Window.width - object.width
+  end
+
+  if object.x <= Zero
+    object.x = Zero
+  end
+
+  #y-axis boundaries
+  if object.y >= Window.height - object.height
+    object.y = Window.height - object.height
+  end
+
+  if object.y <= Zero
+    object.y = Zero
+  end
+end
+
+# handle user input
+on :key_held do |event|
+  case event.key
+    when 'left'
+     # animation
+     @hero.play animation: :walk, loop: false, flip: :horizontal
+
+     # movement
+     @hero.x = @hero.x - @move_by
+     @hero_direction = 'left'
+    when 'right'
+     # animation
+     @hero.play animation: :walk, loop: false
+
+     # movement
+     @hero.x = @hero.x + @move_by
+     @hero_direction = 'right'
+    when 'up'
+     # animation
+     @hero.play animation: :climb, loop: false
+
+     # movement
+     @hero.y = @hero.y - @move_by
+     @hero_direction = 'up'
+    when 'down'
+     # animation
+     @hero.play animation: :climb, loop: false
+
+     # movement
+     @hero.y = @hero.y + @move_by
+     @hero_direction = 'down'
+    when 'c'
+     @hero.play animation: :cheer, loop: false
+   when 's'
+
+     # update so character stops moving when hero_direction key is released
+     if @hero_direction == 'left'
+      @hero.x = @hero.x - @move_by - @sprint_speed
+     end
+
+     if @hero_direction == 'right'
+      @hero.x = @hero.x + @move_by + @sprint_speed
+     end
+
+     if @hero_direction == 'up'
+      @hero.y = @hero.y - @move_by - @sprint_speed
+     end
+
+     if @hero_direction == 'down'
+      @hero.y = @hero.y + @move_by + @sprint_speed
+     end
+  end
+
+  set_boundaries(@hero)
+end
+
+on :key_up do |event|
+  case event.key
+    when 'left'
+      @hero_direction = ''
+    when 'right'
+      @hero_direction = ''
+    when 'up'
+      @hero_direction = ''
+    when 'down'
+      @hero_direction = ''
+  end
+end
+
+show