Entry 35

Mini golf, room cameras, hazards and the level timer

2026-10-1540mplay

A fifth delegated map, docs/engine/golf.md, traced the nine holes and checked them in the oracle. The port now plays the course. Around it went three things every level uses.

Golf (rugrats::golf):

• The hole's place in the play order gives its level, par and baby (0x80057dcc, 0x800b7ffc, 0x800b7ff0). The baby's body is swapped in; the other babies placed in the hole are hidden.
• Walk-up within 0xfffff (d^2), the walk-in, then the stance 425 to the side (0x8005bac4).
• The meter: 1 idle, 4 on Triangle, 3 a frame to 220 and back. Triangle again swings; the hit comes 13 frames into the stroke.
• Aim: Left and Right 25 a frame, 8 with Square, only while the meter is idle. No jump.
• The roll: k = (power << 16) / 6000; pos += v dt >> 6. Friction 15 a frame, the slope push (0x80086a20). Walls and object boxes reflect it at 3000 / 4096. The ball sits at floor - 104.
• The cup: within 384, a speed over 1441 lips out at half speed, else it drops. A ball that stops within 384 drops too.
• Holing out: over par shows "You were over par. / Try Again", waits for Cross, then a cry and the hole again. At or under par the next hole. A hole in one is a bar. The ninth plays cine 35; Game records level 8.
• HUD: "Par %d", "Swing ", the stroke number in yellow at y -100. The meter is sprites 293/294; its bar grows from the right end.
• The golf camera: (440, -2368, -4096) in the player's frame looking at (440, -768, 0). While the ball rolls it watches the ball.
• Start cines Golf Cam n by level; level 25 the intro from outside the course. Activity golf goes hole to hole, then back to the title.

Checked in scripted runs:

• Hole 1 straight at power 181 drops for a hole in one.
• Hole 9 at power 202 runs downhill, off three walls, and stops short.
• Hole 2 shows Chuckie in the stance with the meter.

Room cameras (0x80077c88 into 0x800291f8):

• Room flag 4's byte sets the follow height: 6 is 200, 7 and 11 are 500, 8 is 1600, 9 is 2000. Kind 3 is a fixed camera at the room's post (+0x5c).
• Levels 4 and 15 follow at 512, 7 at -1000 and 6400 behind.
• Level 3's boss rooms now look from post 122, the view the oracle shows.

Hazards (0x8005e1f4): walking or running into an object that is not pickable and not a character costs its +0x6d (template +0x32). Level 3's ice bags hurt for 10. Standing next to one does not; level 2's puck sat at Tommy's feet.

The level timer (0x800c4430, 0x8007f5a8): seconds at the top with the clock sprite 375; at 0 sound 117 and the level's TimerExpired. Level 2's clock now runs on it. The bar counter shows the bars available with sprite 291.