package com.persesgames.game import com.persesgames.math.Matrix4 enum class ViewType { PROJECTION, WIDTH, HEIGHT, ABSOLUTE } class View( var windowWidth: Int = 2000, var windowHeight: Int =1000, var width: Float = 1024f, var height: Float = 1024f, var angle: Float = 60f, var near: Float = -0.1f, var far: Float = -100f, var minAspectRatio: Float = 1f, var maxAspectRatio: Float = 1f, var viewType: ViewType = ViewType.WIDTH) { var vMatrix = Matrix4() var aspectRatio = 1f init { updateView() } fun updateView() { aspectRatio = windowWidth / windowHeight.toFloat() if (aspectRatio < minAspectRatio) { } if (aspectRatio > maxAspectRatio) { } when(viewType) { ViewType.ABSOLUTE -> { vMatrix.setOrthographicProjection(0f, width, 0f, height, near, far) } ViewType.WIDTH -> { height = width / aspectRatio vMatrix.setOrthographicProjection(-width / 2, width / 2, -height / 2, height / 2, near, far) } ViewType.HEIGHT -> { width = height * aspectRatio vMatrix.setOrthographicProjection(-width / 2, width / 2, -height / 2, height / 2, near, far) } ViewType.PROJECTION -> { vMatrix.setPerspectiveProjection(angle, aspectRatio, near, far); } else -> { throw IllegalStateException("ViewType $viewType not implemented!") } } println("width: $width, height: $height") } fun screenToGameCoordX(screenX: Float): Float { var result = screenX when(viewType) { ViewType.ABSOLUTE -> { // nop } ViewType.WIDTH -> { result = (screenX / windowWidth * width) - width / 2 } ViewType.HEIGHT -> { result = (screenX / windowWidth * width) - width / 2 } ViewType.PROJECTION -> { // uhm } else -> { throw IllegalStateException("ViewType $viewType not implemented!") } } return result } fun screenToGameCoordY(screenY: Float): Float { var result = screenY when(viewType) { ViewType.ABSOLUTE -> { // nop } ViewType.WIDTH -> { result = - ( (screenY / windowHeight * height) - height / 2 ) } ViewType.HEIGHT -> { result = - ( (screenY / windowHeight * height) - height / 2 ) } ViewType.PROJECTION -> { // uhm } else -> { throw IllegalStateException("ViewType $viewType not implemented!") } } return result } fun gameToScreenCoordX(gameX: Float): Float { var result = gameX val normalizedX = gameX + (width / 2) when(viewType) { ViewType.ABSOLUTE -> { // nop } ViewType.WIDTH -> { result = (windowWidth / width * normalizedX) } ViewType.HEIGHT -> { result = (windowWidth / width * normalizedX) } ViewType.PROJECTION -> { // uhm } else -> { throw IllegalStateException("ViewType $viewType not implemented!") } } return result } fun gameToScreenCoordY(gameY: Float): Float { var result = gameY val normalizedY = gameY + (height / 2) when(viewType) { ViewType.ABSOLUTE -> { // nop } ViewType.WIDTH -> { result = windowHeight - (windowHeight / height * normalizedY) } ViewType.HEIGHT -> { result = windowHeight - (windowHeight / height * normalizedY) } ViewType.PROJECTION -> { // uhm } else -> { throw IllegalStateException("ViewType $viewType not implemented!") } } return result } fun setToWidth(width: Float) { this.width = width this.viewType = ViewType.WIDTH updateView() } fun setToHeight(height: Float) { this.height = height this.viewType = ViewType.HEIGHT updateView() } fun setProjection(angle: Float) { this.angle = angle this.viewType = ViewType.PROJECTION updateView() } fun setNear(near: Float) { this.near = near updateView() } fun setFar(far: Float) { this.far = far updateView() } }