hpl2:tutorials:script:running_up_walls
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hpl2:tutorials:script:running_up_walls [2013/08/25 21:56] amn |
hpl2:tutorials:script:running_up_walls [2015/07/17 20:32] (current) amn |
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| ====== Running up walls ====== | ====== Running up walls ====== | ||
| - | + | This code will simulate the player running up walls.\\ | |
| - | This code will simulate the player running up walls.\\ | + | |
| Since code ends up being too large and thus confusing, i'm dividing it in parts. | Since code ends up being too large and thus confusing, i'm dividing it in parts. | ||
| - | |||
| 1. How it works | 1. How it works | ||
| - | |||
| {{http://s21.postimg.org/cjfsgmqqv/running_up_walls_image_1.jpg?direct&}} | {{http://s21.postimg.org/cjfsgmqqv/running_up_walls_image_1.jpg?direct&}} | ||
| - | + | This feature uses areas to determine where the wall is and to detect when the player jumps to it.\\ | |
| - | This feature uses areas to determine where the wall is and to detect when the player jumps to it.\\ | + | |
| Using the function //AddPlayerBodyForce// i can simulate the force of each leg running up. | Using the function //AddPlayerBodyForce// i can simulate the force of each leg running up. | ||
| - | + | To get the interval between steps, i'm using //Timers//.\\ | |
| - | To get the interval between steps, i'm using //Timers//.\\ | + | \\ |
| - | \\ | + | |
| We declare the area collision: (//AreaWall1 // is the area covering the wall and //WallRunCollide // is the function.) | We declare the area collision: (//AreaWall1 // is the area covering the wall and //WallRunCollide // is the function.) | ||
| <code php> | <code php> | ||
| - | void OnStart { | + | void OnStart { |
| AddEntityCollideCallback( "Player", "AreaWall1", "WallRunCollide", false, 1 ); | AddEntityCollideCallback( "Player", "AreaWall1", "WallRunCollide", false, 1 ); | ||
| } | } | ||
| </code> | </code> | ||
| - | |||
| And this is the function that triggers when the players collides with the area: | And this is the function that triggers when the players collides with the area: | ||
| - | |||
| <code php> | <code php> | ||
| Line 35: | Line 28: | ||
| </code> | </code> | ||
| - | + | 2. Adjusting code +//Timer// +//Loop// | |
| - | 2. Adjusting code +//Timer// +//Loop// | + | |
| //BodyForce // function uses large numbers, so i'm using a variable instead: | //BodyForce // function uses large numbers, so i'm using a variable instead: | ||
| Line 46: | Line 37: | ||
| } | } | ||
| </code> | </code> | ||
| - | |||
| This will push the player up just once, so i'm adding a //Timer+Loop // to repeat the impulse (5 times): | This will push the player up just once, so i'm adding a //Timer+Loop // to repeat the impulse (5 times): | ||
| Line 52: | Line 42: | ||
| void WallRunCollide ( string &in p, string &in c, int s ) { | void WallRunCollide ( string &in p, string &in c, int s ) { | ||
| float i = 0.25; int n = 5; float r = 0; | float i = 0.25; int n = 5; float r = 0; | ||
| - | + | ||
| - | + | ||
| for ( int v = 1; v <= n; v++ ) { | for ( int v = 1; v <= n; v++ ) { | ||
| AddTimer ( "", r, "RunOnMe" ); | AddTimer ( "", r, "RunOnMe" ); | ||
| Line 61: | Line 50: | ||
| </code> | </code> | ||
| - | + | As you can see, the content changed, i moved it to another new function.\\ | |
| - | As you can see, the content changed, i moved it to another new function.\\ | + | I added 3 variables, interval, number and a counter.\\ |
| - | I added 3 variables, interval, number and a counter.\\ | + | These are used in the //for loop.\\ |
| - | These are used in the //for loop.\\ | + | // This loop will set a //Timer// to call the function "//RunOnMe//" //n// times, on an interval of //i // seconds.//\\ |
| - | // This loop will set a //Timer// to call the function "//RunOnMe//" //n// times, on an interval of //i // seconds.//\\ | + | // \\ |
| - | // \\ | + | \\ |
| - | \\ | + | |
| Below is the new function i created that the //Timers// will trigger: | Below is the new function i created that the //Timers// will trigger: | ||
| <code php> | <code php> | ||
| Line 75: | Line 63: | ||
| } | } | ||
| </code> | </code> | ||
| - | |||
| This is supposed to be a step, i'm adding a sound: | This is supposed to be a step, i'm adding a sound: | ||
| - | |||
| <code php> | <code php> | ||
| Line 87: | Line 73: | ||
| } | } | ||
| </code> | </code> | ||
| - | |||
| At this point, the code is working fine. You can test it out. | At this point, the code is working fine. You can test it out. | ||
| - | |||
| 3. Preventions | 3. Preventions | ||
| - | + | Now we have to consider possible bugs.\\ | |
| - | Now we have to consider possible bugs.\\ | + | We don't want to trigger this if the player didn't jump.\\ |
| - | We don't want to trigger this if the player didn't jump.\\ | + | It would look weird and just fail cause there's not enough starting force.\\ |
| - | It would look weird and just fail cause there's not enough starting force.\\ | + | |
| We can avoid that using //GetPlayerYSpeed()// function, anything below 1 is not jumping: | We can avoid that using //GetPlayerYSpeed()// function, anything below 1 is not jumping: | ||
| <code php> | <code php> | ||
| void WallRunCollide ( string &in p, string &in c, int s ) { | void WallRunCollide ( string &in p, string &in c, int s ) { | ||
| - | + | ||
| - | + | if ( GetPlayerYSpeed() <1 ) { return; } | |
| - | if ( GetPlayerYSpeed() <1 ) { return; } | + | |
| float i = 0.25; int n = 5; float r = 0; | float i = 0.25; int n = 5; float r = 0; | ||
| - | + | ||
| - | + | ||
| for ( int v = 1; v <= n; v++ ) { | for ( int v = 1; v <= n; v++ ) { | ||
| AddTimer ( "", r, "RunOnMe" ); | AddTimer ( "", r, "RunOnMe" ); | ||
| Line 112: | Line 93: | ||
| } | } | ||
| } | } | ||
| - | + | ||
| </code> | </code> | ||
| - | + | That new condition i just added will stop the code by using the //return // function.\\ | |
| - | That new condition i just added will stop the code by using the //return // function.\\ | + | |
| So player may walk into the wall area and not get thrown up by the wall running code. | So player may walk into the wall area and not get thrown up by the wall running code. | ||
| - | |||
| 4. Direction | 4. Direction | ||
| - | + | We are adding now a small tweak to our code to let the player direct his wall running.\\ | |
| - | We are adding now a small tweak to our code to let me player direct his wall running.\\ | + | |
| Using //AddPlayerBodyForce // we can add a slight push ahead: ( just to help the player go where he's looking at) | Using //AddPlayerBodyForce // we can add a slight push ahead: ( just to help the player go where he's looking at) | ||
| <code php> | <code php> | ||
| void RunOnMe ( string &in t ) { | void RunOnMe ( string &in t ) { | ||
| float M = 10000; | float M = 10000; | ||
| - | AddPlayerBodyForce( 0, 2*M, 0, false ); | + | AddPlayerBodyForce( 0, 2*M, 0, false ); |
| AddPlayerBodyForce( 0, 0, 0.7*M, true ); | AddPlayerBodyForce( 0, 0, 0.7*M, true ); | ||
| PlayGuiSound( "step_run_female_rock.snt", 0.4 ); | PlayGuiSound( "step_run_female_rock.snt", 0.4 ); | ||
| } | } | ||
| - | + | ||
| </code> | </code> | ||
| - | |||
| 0.7<nowiki>*</nowiki> M should be enough, remember this will run on every step. There's 5. | 0.7<nowiki>*</nowiki> M should be enough, remember this will run on every step. There's 5. | ||
| - | |||
| 5. Functionality | 5. Functionality | ||
| - | + | This is the end of this guide. With this code you can experiment new functionalities and expand its possibilities.\\ | |
| - | This is the end of this guide. With this code you can experiment new functionalities and expand its possibilities.\\ | + | |
| If you're interested, you can take a look at my code in any script file from my mod Riukka for more developed functions on wall running. | If you're interested, you can take a look at my code in any script file from my mod Riukka for more developed functions on wall running. | ||
| - | + | \\ | |
| - | \\ | + | |
| Amn.- | Amn.- | ||
hpl2/tutorials/script/running_up_walls.txt · Last modified: 2015/07/17 20:32 by amn
