Mercurial > projects > openmelee
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author | zzzzrrr <mason.green@gmail.com> |
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date | Tue, 24 Mar 2009 16:47:42 -0400 |
parents | 8e6a9e390cba |
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/* * Copyright (c) 2009, Mason Green (zzzzrrr) * http://www.dsource.org/projects/openmelee * * All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * Neither the name of the polygonal nor the names of its contributors may be * used to endorse or promote products derived from this software without specific * prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ module openmelee.ship; import tango.io.Stdout: Stdout; import tango.util.container.LinkedList : LinkedList; import blaze.dynamics.bzBody : bzBody; import blaze.collision.shapes.bzShape : bzShape; import blaze.common.bzMath: bzVec2, bzCross, bzClamp; import blaze.bzWorld : bzWorld; import blaze.dynamics.forces.bzAttractor: bzAttractor; alias LinkedList!(bzShape) ShapeList; struct State { bzVec2 position; bzVec2 velocity; bzVec2 up; bzVec2 side; bzVec2 forward; bzVec2 target; float speed = 0; float maxForce = 0; bool turn; float enemyAngle; bzVec2 predictFuturePosition(float dt) { return (position + velocity * dt); } } abstract class Ship { bzWorld world; bzBody rBody; ShapeList shapes; bzVec2 engineForce; bzVec2 turnForce; bzVec2 leftTurnPoint; bzVec2 rightTurnPoint; State state; float battery; float crew; float maxLinVel = 50; float maxAngVel = 2; this(bzWorld world) { this.world = world; shapes = new ShapeList; } void thrust() { rBody.force += engineForce.rotate(rBody.angle); } void turnLeft() { rBody.torque += bzCross(leftTurnPoint.rotate(rBody.angle), turnForce.rotate(rBody.angle)); } void turnRight() { rBody.torque += bzCross(rightTurnPoint.rotate(rBody.angle), turnForce.rotate(rBody.angle)); } void setPlanetGravity() { float minRadius = 0.1; float maxRadius = 10; float strength = 4.0; bzVec2 center = bzVec2(0,0); auto attractor = new bzAttractor(rBody, center, strength, minRadius, maxRadius); world.addForce(attractor); } void limitVelocity() { float vx = rBody.linearVelocity.x; float vy = rBody.linearVelocity.y; float av = rBody.angularVelocity; rBody.linearVelocity.x = bzClamp(vx, -maxLinVel, maxLinVel); rBody.linearVelocity.y = bzClamp(vy, -maxLinVel, maxLinVel); rBody.angularVelocity = bzClamp(av, -maxAngVel, maxAngVel); } void updateState() { state.velocity = rBody.linearVelocity; state.speed = state.velocity.length; state.position = rBody.position; state.forward = engineForce.rotate(rBody.angle); } }