From 37bf7eab28727f428cf456c61f698e0a3be55bb0 Mon Sep 17 00:00:00 2001
From: Indrajith K L
Date: Sat, 5 Mar 2022 05:44:05 +0530
Subject: * Player/ Enemy Chase * Pickable Entity * Enemies

---
 entities/enemy.lua    | 56 ++++++++++++++++++++++++---------------------------
 entities/pickable.lua | 47 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 73 insertions(+), 30 deletions(-)
 create mode 100644 entities/pickable.lua

(limited to 'entities')

diff --git a/entities/enemy.lua b/entities/enemy.lua
index 7e18e95..f8f0681 100644
--- a/entities/enemy.lua
+++ b/entities/enemy.lua
@@ -11,61 +11,57 @@ Enemy = Class{
     speed=60,
     collider=nil,
     world=nil,
-    chasing=false
+    chasing=false,
+    dead=false
 }
 
 function Enemy:draw()
     love.graphics.setColor({1,0,0})
-    love.graphics.rectangle('fill', self.x, self.y, 16, 16)
+    love.graphics.rectangle('fill', self.x, self.y, 8, 8)
     if self.collider then
         
     end
 end
 
 function Enemy:setCollider()
-    self.collider = self.world:newRectangleCollider(self.x, self.y, 16, 16)
+    self.collider = self.world:newRectangleCollider(self.x, self.y, 8, 8)
     self.collider:setFixedRotation(true)
+    self.collider:setType('static')
 end
 
 function Enemy:update(dt)
     if self.collider then
-        -- Do the Query
-        local colliders = self.world:queryCircleArea(self.x, self.y, 100,{'player'})
-        local vx = 0
-        local vy = 0
-        if #colliders then
+        local playerColliders = self.world:queryCircleArea(self.x, self.y, 100,{'player'})
+        local enemyColliders = self.world:queryCircleArea(self.x+4, self.y+4, 8,{'enemy'})
+        if #playerColliders then
             self.chasing = true
-            for i,collider in pairs(colliders) do
+            for i,collider in pairs(playerColliders) do
                 local playerObject = collider:getObject()
-
-                if playerObject.dir=="up" then
-                    vy = self.speed * -1
-                end
-
-                if playerObject.dir=="left" then
-                    vx = self.speed * -1
-                end
-
-                if playerObject.dir=="down" then
-                    vy = self.speed
-                end
-
-                if playerObject.dir=="right" then
-                    vx = self.speed
-                end
                 
                 directionX = playerObject.x - self.x
                 directionY = playerObject.y - self.y
                 distance = math.sqrt(directionX * directionX + directionY * directionY)
-                if distance >16  then
-                    self.x = self.x + directionX / distance * self.speed * dt
-                    self.y = self.y + directionY / distance * self.speed * dt
+                local angle = math.atan2(directionY, directionX)
+                if distance > 20  then
+                    -- self.x = self.x + directionX / distance * self.speed * dt
+                    -- self.y = self.y + directionY / distance * self.speed * dt
+                    self.x = self.x + self.speed * math.cos(angle) * dt
+                    self.y = self.y + self.speed * math.sin(angle) * dt
                 end
             end
-            self.collider:setX(self.x+8)
-            self.collider:setY(self.y+8)
+            
+            if self.collider then
+                self.collider:setX(self.x+4)
+                self.collider:setY(self.y+4)    
+            end
+            
         else
             self.chasing = false
         end
+
+        if self.collider:enter('player') then
+            -- self.dead = true
+            self.collider:destroy()
+        end
     end
 end
\ No newline at end of file
diff --git a/entities/pickable.lua b/entities/pickable.lua
new file mode 100644
index 0000000..00dc174
--- /dev/null
+++ b/entities/pickable.lua
@@ -0,0 +1,47 @@
+Class = require("libs.hump.class")
+
+Pickable = Class{
+    init = function(self, x, y, w, h, name, gameWorld)
+        self.x = x
+        self.y = y
+        self.width = w
+        self.height = h
+        self.image = name
+        self.world = gameWorld
+        self.image = love.graphics.newImage("assets/images/"..name..".png")
+        self.sfx = love.audio.newSource("assets/sfx/"..name..".wav", "static")
+    end,
+    x=0,
+    y=0,
+    width=0,
+    height=0,
+    image=nil,
+    world=nil,
+    collider=nil,
+    acquired=false,
+    sfx=nil
+}
+
+function Pickable:setCollider(colliderData)
+    self.collider = self.world:newRectangleCollider(self.x, self.y, self.width, self.height)
+    self.collider:setFixedRotation(true)
+    self.collider:setType('static')
+    self.collider:setCollisionClass('pickable')
+    self.collider:setObject(colliderData)
+end
+
+function Pickable:draw()
+    love.graphics.draw(self.image,self.x, self.y)
+end
+
+function Pickable:update(dt)
+    if self.collider then
+        if self.collider:enter('player') then
+            self.acquired = true
+            self.sfx:play()
+            self.collider:destroy()
+        end
+    end
+end
+
+return Pickable
\ No newline at end of file
-- 
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