Benutzer:Schüler/Jump ’n’ Run collision

	// Collision detection
	var steps = 32;
	for (var i=0;i<steps;i++) {
		for each(var creature in Creatures) {
			if(creature.awake && creature.y < (Map.Height*32) + 32) {
				var speedX = creature.speedX/steps;
				var speedY = creature.speedY/steps;
				
				var x = Math.round(creature.x);
				var y = Math.round(creature.y);

				// Bricket collision
				if(x%32===0) {
					var Bx = x/32;
					try { var LeftCollision = ((Map.Data[Bx-1][Math.floor(y/32)]>7||Map.Data[Bx-1][Math.ceil(y/32)]>7) && creature.speedX<0); } catch(e) { var LeftCollision = false; }
					try { var RightCollision = ((Map.Data[Bx+1][Math.floor(y/32)]>7||Map.Data[Bx+1][Math.ceil(y/32)]>7) && creature.speedX>0); } catch(e) { var RightCollision = false; }
					if(LeftCollision||RightCollision) { creature.speedX = 0; }
				}

				if(y%32===0) {
					var By = y/32;
					try { var TopCollision = ((Map.Data[Math.floor(x/32)][By-1]>7||Map.Data[Math.ceil(x/32)][By-1]>7) && creature.speedY<0); } catch(e) { var TopCollision = false; }
					try { var BottomCollision = ((Map.Data[Math.floor(x/32)][By+1]>7||Map.Data[Math.ceil(x/32)][By+1]>7) && creature.speedY>0); } catch(e) { var BottomCollision = false; }
					if(TopCollision||BottomCollision) { creature.speedY = 0; }
					if(BottomCollision) creature.AllowJump = 1;
				}

				// Creature collision
				for each(var creature2 in Creatures) {
					if(creature2 != creature && !creature2.dead && !creature.dead ) {
						var LeftCollision = (x == (Math.round(creature2.x) + 32) && (y + 32) > Math.round(creature2.y) && y < (Math.round(creature2.y) + 32) && creature.speedX<0);
						var RightCollision = ( (x+32) == Math.round(creature2.x)  && y + 32 > Math.round(creature2.y) && y < Math.round(creature2.y) + 32 && creature.speedX>0);
						
						var TopCollision = ( x < Math.round(creature2.x) + 32 && x > Math.round(creature2.x) - 32 && y == (Math.round(creature2.y)+32) && creature.speedY<0);
						var BottomCollision = (x < Math.round(creature2.x) + 32 && x > Math.round(creature2.x) - 32 && (y+32) == Math.round(creature2.y) && creature.speedY>0);

						// Handle collision
						if(BottomCollision) creature.AllowJump = 1;

						// Enemy
						if((LeftCollision||RightCollision) && creature.type == "player" && creature2.type <= 1) { creature.kill = 1; }
						if((LeftCollision||RightCollision) && creature.type <= 1 && creature2.type == "player") { creature2.kill = 1; }
						if(BottomCollision && creature.type <= 1 && creature2.type == "player")  { creature2.kill = 1; }
						if(BottomCollision && creature.type == "player" && creature2.type <= 1) {
							creature.NeedJump = 1;
							creature2.dead = 1;
							creature2.frame = 2;
						}
		
						// Player/Player collision
						if(creature.type=="player" && creature2.type=="player") {
							if(LeftCollision||RightCollision) {
								creature.x -= speedX;
								var s = creature.speedX; creature.speedX = creature2.speedX; creature2.speedX=s;
								if(creature.speedX>0&&creature2.speedX<0) { creature.speedX--; creature2.speedX++; }
								if(creature.speedX<0&&creature2.speedX>0) { creature.speedX++; creature2.speedX--; }
								LeftCollision=false; RightCollision=false;
							}
							if(TopCollision||BottomCollision) {
								creature.y -= speedY;
								var s = creature.speedY; creature.speedY = creature2.speedY; creature2.speedY=s;
								if(creature.speedY>0&&creature2.speedY<0) { creature.speedY--; creature2.speedY++; }
								if(creature.speedY<0&&creature2.speedY>0) { creature.speedY++; creature2.speedY--; }
								TopCollision=false; BottomCollision=false;
							}
						}
						
						if(LeftCollision||RightCollision) { creature.speedX = 0; }
						if(TopCollision||BottomCollision) { creature.speedY = 0; }
						
					}
				}

				var speedX = creature.speedX/steps;
				var speedY = creature.speedY/steps;

				creature.x += speedX; creature.y += speedY;
			}
		}
	}