shooter-dsl

A DSL to quickly prototype shooter games (a CPSC 410 project).

Group members

1. Johnson Vu
2. Justin Kwan
3. Leon Lui
4. MengXin Zhao
5. Varun Belani

Project Design Video

DEMO VIDEO: Making a game using ShooterDSL

Preview

EBNF

PROGRAM ::= GAME_DEF OBJECT_MODIFIER* FUNCTION_DEC*

GAME_DEF ::= "make game" IDENTIFIER "{" "width = " NUMBER ", height = " NUMBER" "}" "{" (GAME_STATEMENT | VARDEC | VARSET)* "}"

OBJECT_MODIFIER ::= "set" IDENTIFIER "{" PROPERTY_STATEMENTS "}"

PROPERTY_STATEMENTS ::= PROPERTY_STATEMENT* ("behave = " IDENTIFIER)?

PROPERTY_STATEMENT  ::= PROPERTY "=" EXPR

STATEMENT :: = GAME_STATEMENT | BEHAVE_STATEMENT | PROPERTY_STATEMENT | VARDEC | VARSET | 

GAME_STATEMENT ::= MAKE_STATEMENT | IF_STATEMENT

MAKE_STATEMENT ::=  "make" EXPR? TYPE IDENTIFIER

BEHAVE_STATEMENT ::= MOVEMENT_STATEMENT | SHOOT_STATEMENT

MOVEMENT_STATEMENT ::= "move" EXPR DIRECTION

SHOOT_STATEMENT ::= "shoot" DIRECTION

FUNCTION_DEC ::= "define" IDENTIFIER "(" (PARAM,)* PARAM? ")" BLOCK

FUNCITON_CALL ::= "call" IDENTIFIER "(" (PARAM,)* PARAM? ")"

BLOCK ::= "{" STATEMENT* "}"

PROPERTY ::= "damage" | "health"

GAME_STATE ::= win | lose

TYPE ::= "player" | "projectile" | "enemy" | "item"

IDENTIFIER ::= [A-Z|a-z|0-9]+

NUMBER ::= [0-9]+

IF_STATEMENT ::= "if" "(" CONDITION ")" BLOCK

CONDITION ::= IDENTIFIER (">"| "<" | "=") IDENTIFIER

DIRECTION ::= UP | DOWN | LEFT | RIGHT

VARDEC ::= "new" IDENTIFIER

VARSET ::= IDENTIFIER "=" EXPR

EXPR ::= EXPR OP EXPR

EXPR ::= IDENTIFIER | NUMBER

OP ::= "+" | "-" | "/" | "*"

Build and Run

git clone https://github.com/johnsonvu/shooter-dsl
cd shooter-dsl
javac @sources.txt
java -cp src/ ui.Main

Controls

Default controls are assigned for up to 3 players

• Player 1 - WASD for Up, Left, Down, Right and C for Shoot
• Player 2 - YGHJ for Up, Left, Down, Right and M for Shoot
• Player 3 - PL;' for Up, Left, Down, Right and Shift for Shoot

Credits

1. Game Architecture and design heavily inspired by derickfelix's WizardTDS: https://github.com/derickfelix/WizardTDS
2. Sprites and game visuals by Sparklin Labs: https://www.patreon.com/SparklinLabs