Week 2

2.1: Dangerous Spikes

Spikes

• Before we add moving dangerous things (enemies), we’ll add dangerous things that don’t move (spikes)
• Place spikes in props layer

• Add script
• When level starts, set immovable true
• When touched get toucher
• If toucher has tag player (make sure player has player tag)
• Restart current level

3: Enemy NPC that chases you

• Make new layer for NPCs
• Place an enemy NPC somewhere near your player

• Add script to NPC
• Constantly
• Create a new function definition named Charge
• Use the function call in constantly
• Play to test (save script)
• Charge does nothing
• Charge: Set x velocity to 100
• Set y velocity to 100
• Play
• We want velocities to be towards us so we need difference between position of NPC and position of player.

• Close NPC script and edit player script
• When level starts
• add player tag

• Open NPC script
• Remove hardcoded numbers
• X position of first instance by tag player - x position of myself
• Y position player - y position myself
• Play test

4: Vision limit for NPC

Only charge if distance to player is less than 200

• Constantly, if
• Distance from myself to instance other (starts as angle from)
• Remove other, use first instance by tag player
• Less than 200
• Note: if you’re not sure what your maths is doing or what your numbers are, you can log them using the log block and debug mode

⚡ Bonus Activities ⚡

Bonus 2.1: Limiting the camera

Bonus 2.2: Triggering spikes with a switch