Collision

app.py

@@ -4,13 +4,32 @@ from tokenize import String
 from flask import Flask, request, jsonify
 from flask_cors import CORS
 
-player1 = {"name": "Player 1", "xpos": 1, "ypos": 1}
+player1 = {"name": "Player 1", "xpos": 1, "ypos": 1, "xvel": 0, "yvel": 0}
+
+map1 = {
+    "platforms": [
+        {"x": 30, "y": 100, "width": 100, "height": 100},
+        {"x": 0, "y": 260, "width": 400, "height": 10}
+    ]
+}
+
+data = {}
+
+def checkCollision():
+    global data
+    collision = False
+    for i in map1['platforms']:
+        if ((player1['ypos']+data['spriteData']['ufo']['height']/2 >= i['y']) & (player1['ypos']-data['spriteData']['ufo']['height']/2 <= i['y']+i['height']) & (player1['xpos']+data['spriteData']['ufo']['height']/2 >= i['x']) & (player1['xpos']-data['spriteData']['ufo']['width']/2 <= i['x']+i['width'])):
+            collision = True
+    
+    return(collision)
 
 app = Flask(__name__)
 CORS(app)
 @app.route('/api/send', methods=['POST'])
 
 def receive_data():
+    global data
     data = request.get_json()
     # Input data is the form [reset(bool), isPressed(json)]
 
@@ -18,18 +37,43 @@ def receive_data():
     if (data['reset']):
         player1['xpos'] = 0
         player1['ypos'] = 0
+        player1['xvel'] = 0
+        player1['yvel'] = 0
     
     # Handle key presses
     if (data['keyDown']['ArrowUp'] == True):
-        player1['ypos'] -= 1
-    if (data['keyDown']['ArrowDown'] == True):
         player1['ypos'] += 1
+        if (checkCollision()):
+            player1['ypos'] -= 1
+            player1['yvel'] = 2
+        else:
+            player1['ypos'] -= 1
+    if (data['keyDown']['ArrowDown'] == True):
+        print('LOW LOW LOW LOW LOW LOW LOW LOW')
     if (data['keyDown']['ArrowRight'] == True):
         player1['xpos'] += 1
+        if (checkCollision()):
+            player1['xpos'] -= 1;
     if (data['keyDown']['ArrowLeft'] == True):
         player1['xpos'] -= 1
+        if (checkCollision()):
+            player1['xpos'] += 1;
     
-    return jsonify(player1)
+    # Velocity
+    player1['xpos'] += player1['xvel']
+    player1['ypos'] -= player1['yvel']
+    
+    if (checkCollision()):
+        player1['ypos'] += player1['yvel']
+        player1['yvel'] = 0
+    
+    # Handle Gravity
+    player1['yvel'] -= 0.05
+
+    return jsonify({
+        "player1": player1,
+        "map1": map1,
+    })
 
 if __name__ == '__main__':
     app.run(debug=True)