Question

我正在开发平台游戏，我遇到了一些碰撞检测问题。游戏设置有许多彼此相邻或间隔开的区块，因此玩家从一个区块跳到下一个区块。现在玩家可以跳到障碍物的顶部，跑到障碍物的一侧，如果跳到障碍物的底部则停止。我现在遇到的问题是，如果我进入一个罕见的情况，即玩家落在区块的某个部分之上，游戏会将其识别为其旁边的区块和玩家的区块一侧穿过街区。因此，如果我跳到块[3]的最边缘并且块[4]就在它旁边，游戏会识别出玩家已经跳到了块的一侧[4]。知道如何解决这个问题吗？下面是我的碰撞检测的代码。

function checkBlockCollisions() {
    // If a player collides with a block, their motion should be stopped.
for(var i = 0; i < blocks.length; i ++) {
            var angle = blocks[i].angleTo(player);
            var thisTop = blocks[i].y - blocks[i].height / 2;
            var thisBottom = blocks[i].y + blocks[i].height / 2;
            var playerTop = player.y - player.height / 2;
            var playerBottom = player.y + player.height / 2;

    if(blocks[i].collidesWith(player)) {
        if((angle >= 55 && angle <= 360) && player.falling) {
        // If the player is above the block, then they should stop falling.
            player.falling = false;
            player.onBlock = true;
            player.setDY(0);
              // Make sure the player is not inside the block.
            player.setPosition(player.x, thisTop - player.height / 2);
                } 
                    //top of block is lower than the middle of the player to the top and bottom of block is higher than the middle of the player to the bottom
              if(thisTop > (player.y - player.height / 2) && thisBottom < (player.y + (player.height / 2 ))) {
                // If the player runs into the side of a block, only stop the sideways motion.
                    player.setPosition(player.x - player.dx, player.y);
                    player.setDX(0);
                } // end if
                else if(player.falling) {
                // If the player is below the block, then they should keep falling but stop accelerating upwards and sideways.
                    player.setDY(0);
                    player.setDX(0);
                    player.setPosition(player.x, thisBottom + player.height / 2 + 1);
                } // end if
            } // end if
        } // end for
    } // end checkBlockCollisions

Answer 1

查看我的引擎，它是一个完全用于碰撞的引擎，使用起来非常简单：https://github.com/Murplyx/AAE---Axis-Aligned-Engine

HTML 5碰撞检测平台游戏

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