001 package net.minecraft.src;
002
003 import cpw.mods.fml.common.Side;
004 import cpw.mods.fml.common.asm.SideOnly;
005 import org.lwjgl.opengl.GL11;
006
007 @SideOnly(Side.CLIENT)
008 public class Gui
009 {
010 protected float zLevel = 0.0F;
011
012 protected void drawHorizontalLine(int par1, int par2, int par3, int par4)
013 {
014 if (par2 < par1)
015 {
016 int var5 = par1;
017 par1 = par2;
018 par2 = var5;
019 }
020
021 drawRect(par1, par3, par2 + 1, par3 + 1, par4);
022 }
023
024 protected void drawVerticalLine(int par1, int par2, int par3, int par4)
025 {
026 if (par3 < par2)
027 {
028 int var5 = par2;
029 par2 = par3;
030 par3 = var5;
031 }
032
033 drawRect(par1, par2 + 1, par1 + 1, par3, par4);
034 }
035
036 /**
037 * Draws a solid color rectangle with the specified coordinates and color.
038 */
039 public static void drawRect(int par0, int par1, int par2, int par3, int par4)
040 {
041 int var5;
042
043 if (par0 < par2)
044 {
045 var5 = par0;
046 par0 = par2;
047 par2 = var5;
048 }
049
050 if (par1 < par3)
051 {
052 var5 = par1;
053 par1 = par3;
054 par3 = var5;
055 }
056
057 float var10 = (float)(par4 >> 24 & 255) / 255.0F;
058 float var6 = (float)(par4 >> 16 & 255) / 255.0F;
059 float var7 = (float)(par4 >> 8 & 255) / 255.0F;
060 float var8 = (float)(par4 & 255) / 255.0F;
061 Tessellator var9 = Tessellator.instance;
062 GL11.glEnable(GL11.GL_BLEND);
063 GL11.glDisable(GL11.GL_TEXTURE_2D);
064 GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
065 GL11.glColor4f(var6, var7, var8, var10);
066 var9.startDrawingQuads();
067 var9.addVertex((double)par0, (double)par3, 0.0D);
068 var9.addVertex((double)par2, (double)par3, 0.0D);
069 var9.addVertex((double)par2, (double)par1, 0.0D);
070 var9.addVertex((double)par0, (double)par1, 0.0D);
071 var9.draw();
072 GL11.glEnable(GL11.GL_TEXTURE_2D);
073 GL11.glDisable(GL11.GL_BLEND);
074 }
075
076 /**
077 * Draws a rectangle with a vertical gradient between the specified colors.
078 */
079 protected void drawGradientRect(int par1, int par2, int par3, int par4, int par5, int par6)
080 {
081 float var7 = (float)(par5 >> 24 & 255) / 255.0F;
082 float var8 = (float)(par5 >> 16 & 255) / 255.0F;
083 float var9 = (float)(par5 >> 8 & 255) / 255.0F;
084 float var10 = (float)(par5 & 255) / 255.0F;
085 float var11 = (float)(par6 >> 24 & 255) / 255.0F;
086 float var12 = (float)(par6 >> 16 & 255) / 255.0F;
087 float var13 = (float)(par6 >> 8 & 255) / 255.0F;
088 float var14 = (float)(par6 & 255) / 255.0F;
089 GL11.glDisable(GL11.GL_TEXTURE_2D);
090 GL11.glEnable(GL11.GL_BLEND);
091 GL11.glDisable(GL11.GL_ALPHA_TEST);
092 GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
093 GL11.glShadeModel(GL11.GL_SMOOTH);
094 Tessellator var15 = Tessellator.instance;
095 var15.startDrawingQuads();
096 var15.setColorRGBA_F(var8, var9, var10, var7);
097 var15.addVertex((double)par3, (double)par2, (double)this.zLevel);
098 var15.addVertex((double)par1, (double)par2, (double)this.zLevel);
099 var15.setColorRGBA_F(var12, var13, var14, var11);
100 var15.addVertex((double)par1, (double)par4, (double)this.zLevel);
101 var15.addVertex((double)par3, (double)par4, (double)this.zLevel);
102 var15.draw();
103 GL11.glShadeModel(GL11.GL_FLAT);
104 GL11.glDisable(GL11.GL_BLEND);
105 GL11.glEnable(GL11.GL_ALPHA_TEST);
106 GL11.glEnable(GL11.GL_TEXTURE_2D);
107 }
108
109 /**
110 * Renders the specified text to the screen, center-aligned.
111 */
112 public void drawCenteredString(FontRenderer par1FontRenderer, String par2Str, int par3, int par4, int par5)
113 {
114 par1FontRenderer.drawStringWithShadow(par2Str, par3 - par1FontRenderer.getStringWidth(par2Str) / 2, par4, par5);
115 }
116
117 /**
118 * Renders the specified text to the screen.
119 */
120 public void drawString(FontRenderer par1FontRenderer, String par2Str, int par3, int par4, int par5)
121 {
122 par1FontRenderer.drawStringWithShadow(par2Str, par3, par4, par5);
123 }
124
125 /**
126 * Draws a textured rectangle at the stored z-value. Args: x, y, u, v, width, height
127 */
128 public void drawTexturedModalRect(int par1, int par2, int par3, int par4, int par5, int par6)
129 {
130 float var7 = 0.00390625F;
131 float var8 = 0.00390625F;
132 Tessellator var9 = Tessellator.instance;
133 var9.startDrawingQuads();
134 var9.addVertexWithUV((double)(par1 + 0), (double)(par2 + par6), (double)this.zLevel, (double)((float)(par3 + 0) * var7), (double)((float)(par4 + par6) * var8));
135 var9.addVertexWithUV((double)(par1 + par5), (double)(par2 + par6), (double)this.zLevel, (double)((float)(par3 + par5) * var7), (double)((float)(par4 + par6) * var8));
136 var9.addVertexWithUV((double)(par1 + par5), (double)(par2 + 0), (double)this.zLevel, (double)((float)(par3 + par5) * var7), (double)((float)(par4 + 0) * var8));
137 var9.addVertexWithUV((double)(par1 + 0), (double)(par2 + 0), (double)this.zLevel, (double)((float)(par3 + 0) * var7), (double)((float)(par4 + 0) * var8));
138 var9.draw();
139 }
140 }